Title of Invention

LUBRICANT CONCENTRATE CONTAINING A PHOSPHATE TRIESTER

Abstract The present invention relates to a lubricant concentrate containing the following components (i) at least one amine, (ii) at least one phosphate according to the general formula (I), (iii) at least one acid, (iv) optionally at least one ether carboxylic acid compounds with the general formula (II) R20-(O(CH2)m)nOCH2COO-M+ (II), (v) optionally at least one further aid or additive.
Full Text The present invention relates to a lubricant concentrate, of which the diluted use solution
is suitable for lubricating and cleaning of conveyor belt installations in the food industry,
particularly by means of immersion or automatic belt lubricating systems.
The invention further relates to a process for the production of the lubricant concentrate or
the aqueous use solution of the lubricant concentrate as well as the use of the lubricant
concentrate and the aqueous use solution for lubricating and cleaning of conveyor belt
installations, in particular by means of immersion lubricating or automatic belt lubricating
installations, particularly in the food industry. The use thereby particularly relates to filling
foods, especially with beverages, of glass and plastic bottles, particularly in this case
polyethylene terephthalate (PET), polyethylene naphthalate (PEN) or polycarbonate (PC),
boxes, metal cans, glasses, vessels, refillable cans, barrels or vessels, such as KEGs,
beverage containers, paper and cardboard holders and the like.
In food industry the conveyance of beverage packings made of metal, glass, paper,
cardboard and/or plastic using a lubricant concentrate, respectively its aqueous use
solution, is commonly applied.
Presently beverages are being sold in several different containers. Thus, beverages are
offered in glass bottles, plastic bottles, plastic containers, metal cans, boxes, wax cartons,
etc. In the filling plants these containers have to be transported during filling to several
stations. Generally this occurs by means of feed or conveyance belt installations (having
chains or tracks), which usually consist of stainless steel or plastic, insofar as these
containers concern glass containers, or the conveyance belt installations consist of plastic
materials like polypropylene or certain polyacetates, insofar as these containers concern
other than glass bottles or glass containers. Following hereafter, such installations are
referred to as feed and conveyance installations or as conveyor belt installations.
During filling and transport of the mentioned containers sometimes a turning over or a
blocking of the containers may occur, while the conveyor belts are running further without
hindrance. Especially in this case a sufficient lubrication of the conveyor belts is required
in order that the belt can move forward without hindrance even when the containers on the
belt cannot move forward during some time.
2

For this purpose it is required, as already mentioned before, to lubricate and to clean the
parts of the feed and conveyance installations, which come into contact with the beverage
containers, sufficiently. If the conveyance installations are not lubricated sufficiently this
can, on the one hand, lead to the falling down of the containers, or on the other hand, have
the result that they do not stop, although the respective filing up, cleaning or labelling
station has already been reached. Both kind of malfunctions can lead to longer down time
of the conveyance installations and to considerable loss of capacity.
Presently, there are several different types of lubricant concentrates known, which can in
principal be divided into 4 main groups: i) lubricants on the basis of soap, ii) lubricants on
the basis of polysiloxanes (such as those described in WO 01/18160), iii) lubricants on the
basis of fatty amines (such as those described in WO 98/16603) and iv) lubricants on the
basis of phosphate esters. Additionally, the pH-value of the lubricant compositions (both
the concentrate and the diluted aqueous use solution) may differ, since many of the known
compositions have a pH-value in the range between 5 and 8, but there are also lubricant
compositions known having a pH-value between 7 and 11. Lubricant compositions having
a pH-value within the acid up to the neutral range have the advantage that there is less
stress cracking observed when employing plastic material, such as polyethylene
terephthalate (PET) bottles. For each lubricants concentrate the individual components
have to be harmonized to provide stable compositions for the pH-range intented to be
applied.
Some of the lubricants based on phosphate esters also include an amine compound. US
6,756,347 Bl discloses lubricant compositions comprising at least one alkyl alkoxylated
phosphate ester, one aryl alkoxylated phosphate ester, one aromatic or linear quaternary
ammonium antimicrobial agent and a liquid carrier, such as water. The phosphate
components are in both cases (alkyl alkoxylated or aryl alkoxylated) either a phosphate
monoester or a phosphate diester. The pH-value of said compositions is in the range
between 6 and 8,5.
Another lubricant on the basis of phosphate esters is disclosed in WO 00/22073. That
lubricant comprises a phosphate monoester with the ester component on the basis of
polyethylene oxide, which is additionally substituted with an amide. A disadvantage of
said lubricant composition is that the synthesis of the phosphate ester component is rather
complex including educts such as phosphorous pentoxide, therefore, the production of the
lubricant concentrate is rather cost-intensive.
3

Another lubricant composition based on phosphate esters is disclosed in JP-B 6330079
comprising an alkyl amine and an alkyl (poly)alkoxylated phosphate monoester or a
mixture of the phosphate monoester and the respective phosphate diester. Said
compositions are employed at a pH-value between 5 and 8.
The object of the present invention is the provision of a new and stable lubricant
concentrate on basis of phosphate esters, which can be easily produced at low costs.
Furthermore, the new lubricant concentrate should have at least a comparable or, in
preferred embodiments, an enhanced lubricity causing reduced friction compared to the
known lubricants based on phosphate esters. It is also an object of the invention to provide
a lubricant concentrate causing fast formation of the lubricant film on the conveyor belt
installations (tracks or chains). Furthermore, it is also an object of the present invention
that the lubricant film can be very uniformly applied to the conveyor belt installations.
The object is achieved by a lubricant concentrate containing the following components
(i) at least one amine;
(ii) at least one phosphate according to the general formula (I),

wherein
R1A, R1b and R1c independently from each other are the same or different and
indicate C1-C3o-alkyl or -([CH2]m-O)n-R1d, where m is 2 or 3, n is 1 to 10 and
R1d is C1-C30-alkyl, phenyl or phenyl-(C1-C10-alkyl)-;
(iii) at least one acid
(iv) optionally at least one ether carboxylic acid compound with the general
formula (II)
R20-(O(CH2)m)nOCH2COO-M+ (II)
wherein
R20 is a saturated, linear or branched alkyl rest with 1 to 22 carbon atoms or a mono or
polyunsaturated linear or branched alkenyl or alkynyl rest with 2 to 22 carbon atoms or
4

an aryl rest optionally substituted with at least one C1-C22 alkyl, C2-C22 alkenyl or C2-
C22-alkynyl,
n is a positive number between 0 and 30, and m is 2 or 3,
M is hydrogen or an alkali metal;
(v) optionally at least one further aid or additive;
whereby the portion of the components (i) + (ii) + (iii) with respect to the concentrate
is 1 to 100 wt. %, and said optional components (iv) and (v) may be present in portions
up to 99 wt. %, whereby the portions (i) - (v) are chosen such that the total results in 100
wt. %.
The advantage of the lubricant concentrate of the present invention is that it can be easily
produced at low cost and enhanced lubricity is provided compared to those lubricant
compositions based on phosphate esters known from the state of the art. Enhanced
lubricity causes reduced friction on the conveyor belt installations (being determined by
the friction coefficient ) and therefore improved conveyance of the employed beverage
packings regardless of their material of the packings or the conveyor's chains.
A further advantage is that the lubricating film is formed faster on the conveyor belt
installations (tracks or chains). This implies that an improved number of beverage
packings (improved capacity) can be handled on the conveyor belt installations, since
these systems can only be operated having a sufficient amount of lubricant on the tracks or
chains forming a preferably uniform lubricating film. In case there is no sufficient and/or
uniform lubrication provided on the tracks or chains of the lubricant belt installations,
beverage packings such as bottles cause either a blocking of the whole system or they may
even be destoyed by falling from the tracks or chains.
A further advantage of the lubricant concentrate of the present invention is that the
lubricating film is formed more uniformly and for a longer period of time on the conveyer
belt installations. Due to the more uniformly formation of the lubricating film on the tracks
or chains the beverage packings can be transported more smoothly. This also implies that a
fewer amount of lubricant concentrate is required to provide a uniform lubricating film,
which is attained for a longer period of time. As a further consequence, less solvent, which
is used for diluting the lubricant concentrate, in particular water, is consumed causing
additional cost reduction.
5

The lubricant concentrate of the present invention can be employed for all types of
conveyor belt systems (such as plastic chains or stainless steel chains) and all types of
beverage packing materials (such as glass or plastic containers). In contrast to many of the
known lubricant concentrates, the lubricant concentrate of the present invention has a
significant stability at a pH-range between 3 and 9, since it can be stored as a single phase
system (in form of a clear solution) over several weeks. Preferred lubricant compositions,
containing as a further (optional) component at least one ether carboxylic acid according
to the below indicated general formula II, have the advantage that besides a further
improvement in terms of lubricity also improved water compatibility can be observed in
comparison to those lubricant concentrates of the present invention without these optional
component. Lubricant concentrates additionally containing an ether carboxylic acid are
good sulphate controllers having an excellent hard water tolerance.
The component (i):
The lubricant concentrate according to the invention contains as component (i)
essentially one or more amines. The term "amine", as used in the context of the
invention, includes thereby in a broader context monoamine, polyamine, cyclic
amidine as well as its hydrolysis products or noncyclic synthesis pre-steps,
oxalkylated amine, amine addionally containing an amido-group and salts of the
previously mentioned compounds.
It has to be indicated that due to the presence of further components containing cations, for
example protons, such as the acids of component (iii), the employed amines may be
partially or completely transferred into the corresponding salts during the preparation
and/or storage of the lubricant concentrate. This is particularly relevant if the lubricant
concentrate contains a solvent, such as water, or in the corresponding aqueous use solution
of the lubricant concentrate. The following compounds of components (i), (ii), (iii), (iv)
and (v) are listed with their chemical structure/name before mixing the individual
components with each other to prepare the lubricant concentrate. Nevertheless, the amine
(component (i)) may already be employed in its salt form as starting material when
producing the lubricant concentrate of the present invention.
The monoamines which can be applied according to the invention include, among
others, primary, secondary, tertiary and quaternary amines according to the general
formulas III - V and Va,
6


wherein R2, R3, R4 and R21 independently from each other are the same or different and
indicate C2-C30-alkyl, C5-C30-aryl, C2-C30-alkenyl, C2-C30-alkynyl, C3-C30-cycloalkyl,
C6-C30-arylalkyl or heteroaryl with 5 to 7 ring atoms, whereby the mentioned rest may
be further substituted by one or more amine, imine, hydroxyl, halogen and/or carboxyl
rests as well as salts of the compounds with the formula III - V. Two of the rests R2 to
R could also be closed to form a ring, so that cyclic amines, like e.g. pyridine,
chinoline, isochinoline, piperazine, morpholine, etc., as well as its C-alkyl
derivatives.
Preferred monoamine compounds are those according to the general formula IV and
V, as well as salts of these compounds, which correspond to the general formulas VI
and VII,

wherein R2, R3 and R4 independently from each other are the same or different and
indicate:
a substituted or unsubstituted, linear or branched, saturated or mono or
polyunsaturated alkyl rest with 6 to 22 C-atoms, which as substituents can
display at least one amine, imine, hydroxyl, halogen and/or carboxyl rest,
7

a substituted or unsubstituted phenyl rest, which as substituents can display at
least one amine, imine, hydroxyl, halogen, carboxyl and/or a linear or
branched, saturated or mono or polyunsaturated alkyl rest with 6 to 22 C-
atoms, and
as the anion X- all the customary rests, which are familiar to the professional,
which originate from inorganic acids and/or organic acids and which do not
influence the lubricant concentrate according to the invention in a detrimental
manner, for example do not result in undesired turbidity or standstills, can be
applied.
In the sense of the present invention such acids are preferred of which the anion
X- is chosen from the group: amidosulphonate, nitrate, halide, hydrogensulphate,
sulphate, hydrogencarbonate, carbonate, phosphate or R5-COO- whereby the rest
R5 indicates hydrogen, a substituted or unsubstituted, linear or branched alkyl rest
with 1 to 20 C-atoms, whereby the substituents are chosen from one or more
hydroxyl, amine, imine and/or carboxyl rests. Especially mentioned as examples
for the organic anions X- of the type R5-COO- are: formate, acetate, glycolate,
oleate, lactate, gluconate, citrate and glutamate.
More preferred monoamines or salts of it correspond to the general formulas IV, V, VI and VII,
wherein R2 is a saturated or unsaturated, branched or linear alkyl group with 8 to 22 carbon
atoms, R3 indicates A1-COOH, wherein A1 indicates a linear or branched alkenyl group with 2
to 4 carbon atoms and R4 indicates an alkyl group or hydroxyl-alkyl group with 1 to 4 carbon
atoms.
8
Polyamines which also could be applied according to the invention as components (i) are those
corresponding to the general formula VIII, as well as salts thereof,


wherein R6, R7, R8 and R9 independently from each other are the same or different and indicate:
hydrogen,
a substituted or unsubstituted, linear or branched alkyl rest with 1 to 22 C-atoms or a
mono or polyunsaturated alkenyl rest with 2 to 22 C-atoms, which could display as
substituents one or more hydroxyl, amine, imine, halogen and / or carboxyl rests or
a substituted or unsubstituted phenyl rest, which could display as substituents one or
more amine, imine, hydroxyl, halogen, carboxyl and / or possibly again substituted,
linear or branched, saturated or mono or polyunsaturated alkyl rest with 1 to 22 C-
atoms,
A2 indicates a linear or branched alkylene group with 1 to 8 carbon atoms, and
n is a positive integer number in the range of 1 to 30.
Preferred polyamines are of the general formula VIII, wherein
R7, R8 and R9 = hydrogen
A2= -(CH2)3-,and
n= 1 or2
Also the salts of those compounds which belong to the following general formulas (DC) and (X)
can be preferably applied,
R6-NH-(CH2)3N+H3 X- R6-+NH2 - (CH)2 3+3 2X-
(IX) (X),
wherein R6 has the meaning as mentioned for the formula V11I and X- the meaning as
mentioned for the formulas VI and VII.
In another embodiment of the present invention, preferred polyamines can also be obtained
according to the general formula VIII, wherein
R6 is a saturated or unsaturated, branched or linear alkyl group with 8 to 22 carbon atoms,
R7 is hydrogen, an alkyl group of hydroxyl-alkyl group with 1 to 4 carbon atoms or A2-NH2,
n = 1 and R8 and R9 indicate hydrogen.
9

Some individual examples of polyamines which could preferably be applied according to the
invention are (among others) ethylene diamine, diethylene triamine, triethylene tetra-amine,
propylene diamine, dipropylene triamine, tripropylene tetra-amine, butylene diamine,
aminoethyl propylene diamine, aminoethyl butylene diamine, tetramethylene diamine,
hexamethylene diamine, N-coco-l,3-diaminopropane (N-cocos fatty-alkyl-1,3-diamino-
propane), N-tallow-l,3-diaminopropane (N-tallow fatty-alkyl-l,3-diaminopropane), N-oleyl-
1,3-diaminopropane, N-lauryl-1,3-diaminopropane, each time in the form of the free amine
or in the form of the salt like formate, acetate, oleate, glycolate, lactate, gluconate, citrate,
glutamate, benzoate or salicylate.
More preferred polyamines are N-tallow-l,3-diaminopropane, N-coco-1,3-diaminopropane
and N-oleyl-1,3-diaminopropane, the most preferred polyamine is N-oleyl-1,3-
diaminopropane.
Next to it also polyamine derivatives of a fatty amine according to the general formula XI
can be applied as component (i) of the lubricant concentrate according to the invention,
R2-A3-(CH2)k-NH-[(CH2)l-NH]y-(CH2)m-NH2. (H+X-)n (XI),
whereby
R2 and X- have the meaning as indicated for the formulas VI and VII,
A3 either indicates -NH- or -O-,
k, I, m independently from each other are the same or a different number in
the range of 1 to 6,
y indicates 0, 1, 2 or 3 in case A3 = -NH- and 1, 2, 3 or 4 in case A3 =
-O- and
n is an integer in the range of 0 to 6.
In the above mentioned general formula (XI) the following rest groups can be
applied as substituents R : n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, n-
dodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octa-
decyl, n-nonadecyl, n-eicosyl, n-uneicosyl and n-docosyl as well as the branched-
chain isomers of the mentioned alkyl rests. Instead of the saturated alkyl rest R2 can
also indicate the corresponding - mono or poly -unsaturated alkyl rest, which can also
be linear or branched. The above indicated rests can also be substituted, whereby as
substituents one or more amine, imine, hydroxyl, halogen or carboxyl group can be
10

used. Moreover, the rest R also can indicate a phenyl rest, which can also be
substituted with one or more amine, imine, hydroxyl, halogen or carboxyl group.
Also alkylphenyl rests can be used for R whereby the alkyl rest contains 6 to 22 C-
atoms and which can also be linear or branched, saturated or mono or polyunsaturated.
In all cases chlorine and bromine are preferred as halogen substituents.
Preferred are polyamines according to the general formula XI, whereby A = -NH-, k, I
and m are independently from each other 3 or 4, y is 0 or 1 and the other variables have
the meanings as are indicated before for the formula (XI).
More preferred thereby are all the amines of formula XI, wherein k, I and m is 3.
Polyamines which correspond to the previously indicated general formula XI can be
prepared according to processes as are known from literature and further are also
offered to some extend as commercial products by the company Berol Nobel,
Stockholm, Sweden, under the denomination Amine 640, Amine 660, Amine 740,
Amine 760 and Amine 780.
According to another implementation of the present invention, polyamine derivatives of fatty
amines of the previously mentioned general formula (XI) are preferred, whereby
R2 indicates a linear or branched, saturated or mono or polyunsaturated alkyl rest
with 12 to 18 C-atoms,
A3 indicates -NH- and
X" indicates the rest R5-COO-, whereby R5 indicates hydrogen, CH3-, HO-CH2- or
CH3-CH(OH)-.
wherein
11
Also applicable as components (i) according to the invention are cyclic amidines for
example imidazoline or tetrahydropyrimidine, etc. according to the general formula
XII or salts thereof


Z is an alkylene group with 1 to 6 C-atoms,
A4 is hydrogen or (A5NH)n-H,
A5 is an alkylene group with 1 to 18 C-atoms, which possibly can be mono or
polyunsaturated, and
R10 is an alkyl, aryl, arylalkyl, cycloalkyl or hetero-ring with - where possible and useful,
respectively - between 1 and 30 C-atoms.
Preferred as cyclic amidines are compounds corresponding to the general formula (XIII),

wherein,
R11 , R12, R13 are the same or different hydrogen or A7 - Z2
A is a saturated or unsaturated, linear or branched alkylene rest with 1 to 20 carbon atoms,
A7 is a saturated or unsaturated, linear or branched alkylene rest with 7 to 20 carbon atoms,
Z3 is hydrogen, NH2, OH or COOM1,
M1 is hydrogen or an alkali metal,
Z1 is hydrogen, NH2, OH, COOM2 or -NH-CO-R14,
M is the same or different from M1 hydrogen or an alkali metal, and
R14 is a saturated or unsaturated, linear or branched alkyl group, respectively alkenyl group,
with 6 to 20 carbon atoms.
With regard to the compounds according to the general formula XIII preferably at least one of
the rests R11, R12, R13, A6 and / or R14 contains a saturated or unsaturated alkylene group with at
least 12 C-atoms or a branched alkylene group with at least 12 carbon atoms.
Further, within the group of compounds according to the general formula XIII, those
compounds where A7 contains 12 to 18 carbon atoms are particularly useful, it is particularly
preferred if A7 corresponds to a C17 rest group. A6 preferably has 1 to 6 carbon atoms, very
favourable is a -CH2-CH2- group. A very advantageous variant of Z1 is NH2. Even more
favourable properties have compounds according to the general formula XIII, or as constituent
12

of the component (i), wherein Z1 is NH2, R11 and R12 is hydrogen, R13 is A7Z2, A7C17 and Z2 is
hydrogen.
Preferred cyclic amidines also include salts of compounds with the general formula XIII, which
correspond to the general formula XIV:

wherein the rests R11, R12, R13, A6 and Z1 can take the meaning as shown by formula XIII, the
CH3-ring substituent is bound in the 1 or 3-position of the imidazoline ring and X- is a suitable
anion, as for example is indicated in connection with the explanation of X- in formula XI. It is
particularly preferred if X- is CH3-O-SO3-.
13
In addition to the cyclic compounds of the formulas XIII and XIV also linear amides with the
general formula XV and XVI are suitable as component (i)


wherein the rests R11, R12, R13, A6 and Z1 have the meaning as is indicated for the formulas XIII
or XIV.
The compounds according to the formulas XV and XVI can also become available as by-
products during the synthesis of the compounds XIII or XIV, they can also develop during the
storage of these compounds, for example by hydrolysis, or also formed by means of direct
synthesis without a detour via a cyclic intermediate product.
Oxalkylated amines, e.g. oxalkylated derivatives of the above mentioned amine (monoamine,
polyamine, cyclic amidine etc.) are also suitable, within the scope of the invention, as component
(i). The oxalkylated derivatives thereby show the group -(OA8)n-, which can be derived from
any suitable , -alkyleneoxide with the general formula XVII,

wherein
R15, R16, R17 and R18 independently from each other are the same or different, hydrogen or a
possibly substituted rest, like e.g. alkyl, cycloalkyl, aryl, etc.
Examples include among others ethyleneoxide, propyleneoxide, butyleneoxide, amyleneoxide,
octyleneoxide, styroloxide, methylstyroloxide, cyclohexaneoxide (wherein R15 and R17 are
forming a ring together), etc.; instead of alkyleneoxide also alkylenecarbonate, e.g.
ethylenecarbonate, propylenecarbonate, etc., can be applied.
- (OA8)n- means
homo units like -(OEt)n-, -(OPr)n-, -(OBu)n-, -(O octyl)n-, etc.;
block units like -(OEt)a(OPr)b-, -(OEt)a(OBu)b-r(OPr)a(OEt)b(OPr)c,
-(OEt)a(OPr)b(OBu)c, etc., wherein a + b + c = n;
groups containing hetero units, which contain a coincidental statistical sequence of more than
one oxide (OEt-OPr)n, (OPr-OBu)n, (OEt-OBu)n, whereby the proportion of one oxide to the
other is e.g. 1 -99 to 99-1;
hetero - homo units like e.g.
14

(EtO)a(EtO-PrO)b
(EtO)a(PiO)b(EtO-
rO)c,
(EtO-PrO)a(BuO)b, etc.
Preferred oxalkylated amines are compounds according to the general formulas XVIII and XIX:

wherein
R19 is a linear or branched, saturated or unsaturated, alkylene rest with 8 to 22
carbon atoms,
A12 is a linear or branched alkylene group with 8 to 22 carbon atoms,
A9, A10, A11 are the same or different and each indicates at least one ethoxy or
propoxy group or a bonding, whereby the total of the groups A9, A10, A11
is between 2 and 200.
Useful compounds among others are:
Cocos-bis(2-hydroxylethyl)amine, polyoxyethylene (5) cocos-amine, polyoxyethylene (15)
cocos-amine, tallow-bis(2-hydroxylethyl)amine, polyoxyethylene(5) tallow-amine, tallow/oleyl-
bis(2-hydroxylethyl)amine, oleyl-bis (2-hydroxylethyl)amine, polyoxyethylene (5) oleylamine,
polyethylene (15) oleylamine, tallow-bis(2-hydroxylethyl) amine (hydrated), polyoxyethylene
(5) tallow-amine (hydrated), polyoxyethylene (15) tallow-amine (hydrated), polyoxyethylene
(50) tallow-amine, N,N',N'-tris(2-hydroxylethyl)N- tallow - 1,3-diaminopropane, N,N',N'-
15

polyoxyethylene (10) -N-tallow -1,3-diamino-propane, N,N',N'-polyoxyethyIene (15)-N-
tallow-1,3-diaminopropane and poly oxyethylene (15)-tallow-amine.
The lubricant concentrate according to the invention preferably contains as component (i)
one or more polyamines according to the general formula VIII, or a salt thereof. More
preferably it contains as component (i) one or more polyamines according to the general
formula VIII, wherein R7, R8 and R9 are hydrogen, A2 is -(CH2)3- and n is 1 or 2. It
contains as component (i) much more preferably N-tallow-1,3-diaminopropane, N-coco-
1,3-diaminopropane and/or N-oleyl-1,3-diaminopropane, most preferably N-oleyl-1,3-
diaminopropane.
The component (ii):
The lubricant concentrate according to the invention contains as component (ii) essentially
one or more phosphates according to the general formula I,

wherein
R1a, R1b and R1c independently from each other are the same or different and indicate C1-
C30-alkyl or -([CH2]m-O)n-R1d, where m is 2 or 3, n is 1 to 10 and R1d is C1-C30-alkyl,
phenyl or phenyl-(C1-C10-alkyl)-. As indicated below the alkyl and/or phenyl fragments of
R1a to R1d may optionally be further substituted. Compounds according to formula (I) can
be assigned as phosphate triesters.
Preferred phosphates according to general formula I are those, wherein Rla, R1b and R1c
independently from each other are the same or different and indicate -([CH2]m-O)n-R1d,
where m is 2, n is 1 to 3 and R1d is C1-C30-alkyl. More preferred are compounds according
to the general formula I, wherein R1a, R1b and R1c have the same meaning and indicate -
([CH2]m-O)n-R1d, where m is 2, n is 1 to 3 and R1d is C1-C30-alkyl. Even more preferred are
compounds of the general formula I, wherein R1a, R1b and R1c have the same meaning and
indicate -CH2-CH2-O-(C1-C10-alkyl). Most preferred are compounds according to the
general formula I, wherein R1a, R1b and R1c are each butoxyethyl.
16

Compounds according to general formula (I) are be commercially available, such as tris(2-
butoxyethyl)phosphate (trade name: Etingal TP®, BASF AG), or they can be synthesized
according to methods known by a skilled person.
The component (in):
The lubricant concentrate according to the invention contains as a further essential
component one or more acids. All suitable inorganic or organic acids can be employed.
Examples of inorganic acids are hydrochlorid acid, hydrobromic acid, phosphoric acid,
metaphosphoric acid, nitric acid, sulfonic acid and sulphuric acid. Examples for organic
acids are formic acid, acetic acid, propionic acid, butyric acid, stearic acid, oxalic acid,
melonic acid, succinic acid, glutaric acid, benzoic acid, citric acid, maleic acid, fumaric
acid, methansulfonic acid, acrylic acid, propiolic acid, methacrylic acid, crotonic acid,
isocrotonic acid, oleic acid, elaidic acid and trifluoroacetic acid. If existing said acids can
be either employed in the pure form or diluted in a solvent, preferably in water. The
employment of acids diluted in water is preferred. Preferred components (iii) are saturated
aliphatic monocarboxylic acids containing from one up to eight carbon atoms (Ci-Cs-
monocarboxylic acids). More preferred components (iii) are acetic acid or formic acid,
whereby both acids are preferably diluted with water in a 40 to 60 wt. % concentration.
The most preferred component (iii) is acetic acid, diluted with water in a 40 to 60 wt. %
concentration.
The component (iv).
The lubricant concentrate according to the invention may contain as an optional component
one or more ether carboxylic acid compounds with the general formula (II)
R20-(O(CH2)m)nOCH2COO-M+ (II)
wherein
R20 is a saturated, linear or branched alkyl rest with 1 to 22 carbon atoms or a mono or
polyunsaturated linear or branched alkenyl or alkynyl rest with 2 to 22 carbon atoms or an aryl
rest optionally substituted with at least one C1-C22 alkyl, C2-C22 alkenyl or C2-C22-alkynyl,
n is a positive number between 0 and 30, and m is 2 or 3,
M is hydrogen or an alkali metal.
17

As ether carboxylic acids with the general formula (II), which can be applied advantageously,
can be mentioned among others:

Preferred compounds according to the general formulas (II) are those whereby R20 is a C3-C18-
alkyl or alkenyl group, n is between 2 and 9 and M is hydrogen, sodium or potassium. Most
preferred is when R20 is an oleyl group and n is 9.
The ether carboxylic acids according to the general formula are available commercially or can
be synthesized according to processes known from the literature. For example, the compounds
mentioned in the table can be obtained under the trade name AKYPO from the company
CHEM-Y as special surfactant.
The component (v):
The component (v) is optional and therefore only possibly contained in the lubricant
concentrate according to the invention. As component (v), the lubricant concentrate
according to the present invention may contain one or more of the following compounds also
assigned as aid or additive, which can be independently selected from each other.
As component (v) water can be applied. The added water may be soft water, hard water or
softened water, preferably softened water is employed.
18

The lubricant concentrate according to the invention may contain as a further optional
component (v) one or more polyethylene glycols (PEG's) with the general formula (XX),
H-(OC2H4)n-OH (XX),
wherein
n is a positive integer between 5 and > 100,000.
Preferred polyethylene glycols have molecular masses of approx. 200 - 5,000,000 g/mol. The
PEG's concern non-unity substances from a molecular point of view, i.e. polymolecular
compounds which consist of collectives of macro-molecules with different molecular masses.
These compounds are mostly prepared technically by means of alkaline catalyzed polyaddition
of ethylene oxide (oxiran) in systems which mostly contain a low amount of water and with
ethylene glycol as the starting molecule.
In order to characterize the types frequently the main point of the molecular weight division is
used in the art. Thus talked is about a PEG 200, PEG 400, PEG 1000, PEG 10,000, etc.
PEG's with molecular masses of approx. 580 are preferred within the scope of the invention; these actual PEG's are liquid
under normal conditions of pressure and temperature and therefore allow a very simple
handling. Especially preferred are PEG's with n approximately between 8 and 13. Such
compounds can be obtained for example under the trade name "Plural" from the company
BASF.
Besides water and/or PEG's also the following aids and/or additives qualify as component (v):
solution intermediates, for example alcohols, polyalcohols, ether or polyether,
especially isopropanol, butylglycol, butyldiglycol or ethyleneglycolether;
Examples of components which qualify as solution intermediates can be found in the
below table.
19


The amount of the solution intermediates to be used should be determined according to the
individual amine to used, the professional will calculate the required solution intermediate in
the individual case by means of trial and error. In general additions of solution intermediates
in the range of 5 to 20 wt %, calculated on basis of the total composition, will be sufficient.
Optionally, two or more of the solution intermediates may be employed as a mixture.
Further, as aid and / or additives according to the present invention particularly non-ionic and /
or amphoteric surfactants merit consideration, for example fatty alcohols and alkoxylated fatty
alcohols. These surfactants can improve the moistening of the chain and conveyor belts
insofar as this is required in an individual case. In general surfactant additions in the range of
1 to 5 wt. %, calculated on basis of the total composition are sufficient for this purpose. Also,
polyalkylene glycols which are not included in the above indicated polyethylene glycols can
be employed. Additionally, one or more phosphate mono- or diesters as those indicated in US
6,756347 Bl, WO 98/16603 or JP-B 6330079 also qualify as component (v).
Further additives include anti foaming agents, foam regulators, foam stabilizers, moistening
agents, coupling agents, chelation agents or chelate formers or solubility improvers, biocides, like
e.g. bactericides, corrosion inhibitors, pH-buffers, as well as combinations of representatives of
the previously mentioned classes of substances.
20

Unless stated otherwise, each of the alkyl (or alkylene), alkenyl (or alkenylene) or
alkkynyl (or alkynylene) residues or fragments defined in formulas (I) to (XX), such as R1
to R21 , R1a to R1d or A1 to A12 may independently be linear or branched, acyclic or cyclic.
This also applies when they are part of other groups, for example in alkoxy groups (C1-
C10-alkyl-O-), alkoxycarbonyl groups or amino groups, or when they are substituted.
Examples for alkyl groups are: methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl,
nonyl, decyl. This comprises both the n-isomers of these residues and isopropyl, isobutyl,
isopentyl, sec-butyl, tert-butyl, neopentyl, 3,3-dimethylbutyl etc.. Furthermore, unless
stated otherwise, the term alkyl here also includes - besides the unsubstituted alkyl
residues - optinally substituted alkyl residues which are substituted by one or more, for
example one, two, three or four, identical or different residues, for example aryl,
heteroaryl C1-C10-alkoxy, -CF3, -OH, -NH2 or halogen. The substituents may be present
in any desired position of the alkyl group. The term alkyl here also expressly includes
cycloalkyl residues and cycloalkyl-alkyl-residues (alkyl substituted by cycloalkyl), where
cycloalkyl contains at least three carbon atoms. Examples for such cycloalkyl residues are
cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl and cyclooctyl. All
cycloalkyl groups may be unsubstituted or optionally substituted by one or more further
residues, as exemplified above in the case of the alkyl groups. The same applies to the
respective alkylene or cycloalkylene fragments.
Examples for alkenyl and alkynyl groups are the vinyl residue, the 1-propenyl residue, the
2-propenyl residue (allyl residue), the 2-butenyl residue, the 2-methyl-2-propenyl residue,
the 3-methyl-2-butenyl residue, the ethynyl residue, the 2-propynyl residue (propargyl
residue), the 2-butynyl residue or the 3-butynyl residue. Unless indicated otherwise the
term alkenyl also includes cycloalkenyl residues and cycloalkenyl-alkyl-residues (alkyl
substituted by cycloalkenyl) containing at least three carbon atoms. The same applies to
the respective cycloalkynyl groups. Examples for cycloalkenyl residues are cyclopentenyl,
cyclohexenyl, cycloheptenyl and cyclooctenyl. The same applies to the respective
alkenylene, cycloalkenylene, alkynylene or cycloalkynylene fragments. Unless indicated
otherwise, the terms alkenyl, alkynyl, etc. also include polyunsaturated residues such as
alk-dienyl, alk-trienyl, alk-diynyl, etc.
According to the present invention, aryl is a residue derived from mono-, bicyclic or
polycyclic aromatics having between 6 and 30, preferably 6 or 10, carbon atoms, where
the cycle does not contain any heteroatoms. In case it is not a monocycle, the term aryl
includes for its second cycle also its saturated form (perhydro form) or its partially
21

unsaturated form (for example in the dihydro form or the tetrahydro form) in case the
respective forms are known and stable. The term aryl as used herein comprises therefore,
for example, bicyclic residues in which both cycles are aromatic as well as bicyclic
residues in which only one cycle is aromatic. Such examples for heteroaryl are: phenyl,
naphthyl, indanyl, 1,2-dihydronaphthenyl, 1,4-dihydronaphthenyl, indenyl or 1,2,3,4-
tetrahydronaphthyl. Preferably, aryl is phenyl.
Furthermore, if residues or fragments defined in formulas (I) to (XX), such as R1 to R21 ,
R1a to R1d or A1 to A12 comprise an aryl (or arylene) fragment, in particular phenyl, said
aryl fragment may be unsubstituted or optionally substituted by one or more identical or
different residues such as halogen C1-C10-alkyl, C1-C10-alkoxy, -OH, -NH2 and -CF3.
Arylalkyl (such as aryl-(C1-C10-alkyl)-, in particular phenyl-(C1-C10-alkyl)-) means an
alkyl residue (such as C1-C10-alkyl), which in turn is substituted by an aryl residue.
It has to be emphasized that the below indicated proportions of the individual components (i)
to (iii) or (i) to (v), respectively, concerning the lubricant concentrate or the corresponding
diluted (for example aqueous) use solutions, refer to the proportions of the respective
components before the preparation of said concentrate or use solution, i.e. it is referred to the
individual components as starting material (educts) before mixing them with each other. Due
to the preparation of the lubricant concentrate (mixing of the individual components) it may
happen that two or more of its components form partially or completely, for example, adducts
such as salts. This may also depend on the presence of further components such as solvents,
for example water. Such adducts of lubricant concentrates or diluted use solutions are also
covered by scope of the present invention.
Although the favourable effects according to the invention can already be realized with
arbitrary proportions of the components (i) to (iii), the lubricant concentrate according to the
invention shows exceptionally favourable effects when the components (i): (ii) are present in a
proportion of 1 : 0.5 to 1 : 2, always calculated on basis of the weight of all the components (i)
as well as (ii).
Preferred is also a concentrate which is characterized that the components (i): (iii) are present
in a proportion of 1 : 0.75 to 1 : 3, calculated on basis of the weight of all the components (i)
as well as (iii).
As long as the proportion of amine to phosphate triester to the acid is within the mentioned
range, excellent clear solubility will be obtained in an aqueous medium as well as an excellent
22

gliding property will be achieved compared to compositions without the addition of phosphate
triester.
The lubricant concentrate according to the invention contains the amine component (i) as a rule
in an amount between 0.1 and 50 wt. %. The amine component (i) is present in an amount of
0.5 to 20 wt. % in a preferred version and 0.5 to 10 wt. % in a more preferred version of the
lubricant concentrate according to the invention, whereby amounts of 2 to 6 wt. % are
especially preferred.
The phosphate triester (component ii) is contained in the lubricant concentrate according to
the invention generally in an amount of 0.1 to 50 wt. %. A value of 0.5 to 20 wt. % is preferred;
0.5 to 10 wt. % is more preferred; it has been shown that a value of 2 to 6 wt. % of phosphate
triester in the lubricant concentrate according to the invention is especially preferred.
The component (iii) is generally present in the lubricant concentrate according to the invention
in an amount between 0.1 and 50 wt.%. Amounts of 0.5 to 20 wt. % are preferred, 0.5 to 10 wt.
% is more preferred, particularly preferred are values of 1 to 3.5 wt. %.
If present, the optional component (iv) is contained in the lubricant concentrate according to
the invention generally in an amount of 0.1 to 50 wt. %. A value of 0.5 to 20 wt. % is preferred;
0.5 to 10 wt. % is more preferred; it has been shown that a value of 2 to 6 wt. % of phosphate
triester in the lubricant concentrate according to the invention is especially preferred.
In a preferred implementation the concentrate according to the invention is characterized by 0.5
to 10 wt. % (i), 0.5 to 10 wt. % (ii), 0.5 to 10 wt. % (iii) and 70 to 98.5 wt. % (v), whereby all
weight percentages are chosen such that a 100 % (wt / wt) concentrate will be obtained. In
other preferred implementations the concentrate additionally contains - besides components (i)
to (iii) with same portions - 0.5 to 10 wt. % (iv) and component (v) is 70 to 98 wt. % instead,
whereby all weight percentages are chosen such that a 100 % (wt / wt) concentrate will be
obtained.
In a particularly efficient version the concentrate according to the invention shows the
following contents:
(i) 2 to 6 wt.%,
(ii) 2 to 6 wt. %,
(iii) 1 to 3.5 wt.%,
23

(iv)2 to 6 wt. % and
(v) 80 to 93 wt. %, whereby the amounts (i) - (v) are chosen such that the total results in
100 wt.%.
The lubricant concentrate is preferably indjusted to a pH-value between 3 and 9, more
preferred to a pH-value between 4 and 8.
Preferred lubricant concentrates contain the following components:
(i) is at least one amine of the general formula (VIII)

wherein R6, R7, R8 and R9 independently from each other are the same or different and
indicate:
hydrogen,
a substituted or unsubstituted, linear or branched alkyl rest with 1 to 22 C-
atoms or a mono or polyunsaturated alkenyl rest with 2 to 22 C-atoms, which
could display as substituents one or more hydroxyl, amine, imine, halogen and /
or carboxyl rests or
a substituted or unsubstituted phenyl rest, which could display as substituents
one or more amine, imine, hydroxyl, halogen, carboxyl and / or possibly again
substituted, linear or branched, saturated or mono or polyunsaturated alkyl rest
with 1 to 22 C-atoms,
A2 indicates a linear or branched alkylene group with 1 to 8 carbon atoms, and
n is a positive integer number in the range of 1 to 30, preferably 1 or 2,
(ii) is at least one compound selected from components of formula (I), wherein
R1a, R1b and R1c independently from each other are the same or different and
indicate -([CH2]m-O)n-R1d, where m is 2, n is 1 to 3 and R1d is C1-C30-alkyl,
(iii) is at least one saturated aliphatic monocarboxylic acids containing from one up
to light carbon atoms.
24

In another preferred embodiment of the present invention, the lubricant concentrate
contains as component (iii) additionally one or more unsaturated carboxylic acids, which
contain between 7 and 20 carbon atoms. Preferably, oleic acid is employed as additional
component (iii), more preferably in combination with at least one saturated C1-C7-
carboxylic acid, in particular with acetic acid. In a further preferred embodiment, the
lubricant concentrate contains besides the additional (one or more) unsaturated carboxylic
acid(s), one or more polyethylene glycols according to the general formula (XX).
The presence of one or more unsaturated C7-C20-carboxylic acid has the advantage that a
stable lubricant concentrate is obtained, which is also very effective as anti-foam agent.
Said embodiment also has enhanced lubricity and significantly effects the depression of
foam on feed and conveyance installations in the food industry.
In another preferred embodiment of the present invention the lubricant concentrate
contains as component (iv) at least one compound selected from compounds of formula (II),
wherein R20 is a C3-C18-alkyl or alkenyl group, n is between 2 and 9 and M is hydrogen, sodium or
potassium or, as component (v), it contains a) water and b) optionally at least one further acid or
additive. In a further preferred embodiment, the lubricant concentrate contains both components (iv)
and (v) having the above definitions (of the last sentence).
Furthermore, the invention relates to a process for the preparation of the lubricant according to
the invention.
This is produced by mixing of the components (i), (ii) and (iii), possibly with addition of the
components (iv) and (v). Water is preferred as component (v) thereby. Therefore, a further
subject of the invention is a process for the preparation of a lubricant concentrate by means of
mixing of the components (i) to (iii) and possibly addition of further components (iv) and/or
(v).
Moreover, the invention relates to a lubricant solution for lubricating and cleaning of feed and
conveyance installations in the food industry. The lubricant solution (which can be assigned as
diluted use solution) is obtained by mixing a lubricant concentrate (containing components (i)
to (iii) and optionally (iv) or (v) as indicated above) with a solvent. Thereby, the lubricant
solution is characterized by a content of the following components in combinations:
a) a lubricant solution concentrate containing:
25

(i) at least one amine;
(ii) at least one phosphate according to the general formula I,

wherein
R1a, R1b and R1c independently from each other are the same or different and
indicate C1-C30-alkyl or -([CH2]m-O)n-R1d, where m is 2 or 3, n is 1 to 10 and
R1d is C1-C30-alkyl, phenyl or phenyl-(C1-C10-alkyl)-;
(iii) at least one acid;
(iv) optionally at least one ether carboxylic acid compound with the general formula II
R20-(O(CH2)m)nOCH2COO-M+ (II)
wherein
R20 is a saturated, linear or branched alkyl rest with 1 to 22 carbon atoms or a mono or
polyunsaturated linear or branched alkenyl or alkynyl rest with 2 to 22 carbon atoms or
an aryl rest optionally substituted with at least one C1-C22 alkyl, C2-C22 alkenyl or C2-
C22-alkynyl,
n is a positive number between 0 and 30, and m is 2 or 3,
M is hydrogen or an alkali metal;
(v) optionally at least one further aid or additive;
whereby the portion of the components (i) + (ii) + (iii) with respect to the concentrate
is 1 to 100 wt. %, and said optional components (iv) and (v) may be present in portions
up to 99 wt. % (wt / wt), whereby the portions (i) - (v) are chosen such that the total
results in 100 wt. %, and
b) at least one solvent selected from water, polyethylene glycol, alcohol, ether and
polyether;
whereby component a) is diluted with component b) by a dilution factor of 2 to
10,000.
26

According to the invention this lubricant solution (diluted use solution) can be obtained from
the lubricant concentrate (component a)) according to the invention by means of dilution with
a solvent (component b)) and a dilution factor of 2 to 10,000, preferably 100 to 2,000, more
preferably with a factor 200 to 1,000; measured in volume % (vol.%).
Preferably, the lubricant solution (diluted use solution) is an aqueous use solution. The
dilution is obtained by employing at least one of the solvents listed as component b). The
same definitions and examples apply to the individual solvents (component b)) of the
lubricant solution as already indicated above in the corresponding section of component
(v) of the lubricant concentrate. Preferably, component b) is water, a mixture of water
with at least one further solvent of component b) or an alcohol, which is preferably
ethanol, isopropanol or n-propanol. More preferably, component b) is water, optionally in
combination with at least one further solvent of component b). It has to be indicated that it
is possible to employ a lubricant concentrate, which does not contain any water, but one
or more other components listed under component (v) instead, and said concentrate is
diluted with water to obtain an aqueous use solution.
The present invention further relates to the use of lubricant concentrates according to the art
described before as chain lubricant in the food industry, particularly for the lubricating and
cleaning of feed and conveyance installation in the food industry, particularly automatic chain
and belt lubrication installations. The present invention particularly relates to the use of the
lubricant concentrates described before in the form of a 0.01 to 50 wt. %. Additionally, the
present invention relates to use of phosphate triesters according to general formula (I) for
lubricating and/or cleaning of feed and conveyance installations in the food industry. Preferably,
the phosphate triester is contained in a lubricant concentrate, more preferably in a lubricant
solution, most preferably in an aqueous use solution.
This means that the present invention relates to the use of lubricant concentrates, preferably
lubricant solutions, more preferably the aqueous use solution described before as a chain
gliding and lubricating means suitable for lubricating and cleaning of feed and conveyance
installations, in particular by means of immersion and/or automatic belt lubricating
installations, in the food industry. The products according to the invention do not cause stress
crack corrosion, in contrast to standard soap products, when applied with plastic objects, and
therefore can be applied in particular without problems for PET or PC-objects. Accordingly,
the lubricant solutions according to the invention can find use as chain lubricant for the feed or
conveyance of objects or bottles made of glass, glass covered with a plastic layer, plastics, in
particular polyethyleneterephthalate (PET), polycarbonate (PC) or polyvinylchloride, tin plate
27

or aluminium, respectively varnished or plastic-layered containers made of these metals. The
use thereby particularly relates to the filling up with foods, especially with beverages, of
glass and plastic bottles, particularly in this case polyethylene terephthalate (PET),
polyethylene naphthalate (PEN) or polycarbonate (PC), boxes, metal cans, glasses,
vessels, refillable cans, barrels or vessels, such as KEGs, beverage containers, paper and
cardboard holders and the like.
Therefore, the invention also relates to a process for the conveyance of beverage packings
made of metal, glass, paper, cardboard and/or plastic, whereby a beverage conveyance device is
contacted with a lubricating and cleaning amount of an aqueous use solution, as is defined
herein.
The products according to the invention show, compared to known lubricants, a considerably
better tolerance to water chemistry in an aqueous medium as well as considerably better
gliding properties. Therewith, the desired technical properties of the lubricant concentrate,
respectively the aqueous lubricant solution, can be adjusted purposefully by the choice of the
triester and/or the amine, respectively the anion of the amine.
The following examples and comparative examples serve to present a more detailed
explanation of the invention:
I Methods
a.) Friction coefficient
The experiments for the measurement of the friction coefficient were performed on a
bottle conveyor under the following conditions:
- 6 glass bottles (0,5 litre) are placed on the test track.
Friction force [Fz] is constantly measured via an electronic scales with A/D
converter.

- Spraying of the conveyor with a 0,3 wt. % lubricant solution.
28
- The coefficient friction force [Fz] / weight of bottles [FN] represents the friction
coefficient Ful which expresses the lubricity.

Speed of the conveyor: approx. 0,4 m/s.
- Phase time: 40 sec. spraying / 60 sec. non spraying
Spraying performance per spray nozzle: approx. 4 litre / h
Furthermore, the products were tested with hard water (16°dH) according to the provisions
of DIN 53 902 and tested in completely desalinated water.
The variance is a measure for the uniformity of lubricity or friction, respectively on the
conveyor belt installations (tracks or chains), being determined from the noise of the
friction coefficient measurements. A decreasing variance value relates to a more uniform
lubrication on the tracks or chains. The time when the noise of the friction of the
coefficient measurement is at a constant level indicates the starting point for transporting
the beverage packings on the conveyor due the formation of uniform lubricating film.
b.) Water compatibility
The compositions to be applied according to the invention show an excellent water
compatibility, which can be shown by the performed turbidity measurements
(Nephelometer).
Herewith, the regular removal of waste, which develops because of the reaction of ions,
like sulphate, phosphate and carbonate, with the lubricant solution, can be prevented.
For this propose 0,3 wt. % use solutions were measured over a period of 7 days (168
hours). These experiments were performed in the following water conditions:

Content Concentration [mg/L]
Sodium sulphate (Na2SO4) 148
Sodium chloride (NaCl) 165
Sodium hydrogen carbonate (Na HCO3) 138
Calcium chloride (CaCl x 2 H2O) 275
The water compatibility is expressed in FNU (Formazine nephelometric units).
0 to 1 FNU = clear
1 to 10 FNU = weak, opalescent
29

10 to 50 FNU = turbidity
50 to > 100 FNU = strongly turbidity
c.) Foam behaviour
The foam behaviour was calculated according to the following method:
100 ml of the use solution (0.3 %) was transferred into a 250 ml measuring cylinder. Thereafter
it was shaken 30 times during 30 seconds and after a further 20 seconds the volume of the foam
above the 100 ml mark was read off.
d.) Material compatibility PET
The material compacibility of the mixture according to the invention as well as a comparative
example was examined in a test.
For this, the following equipment was needed:
Environmental camber:
in each case 20 new PET bottles (1.5 L) in crates, CO2-cylinder with fitting reducing valve,
attachment for filling of the bottles with CO2, separate manometer for testing the bottles with
regard to CO2;
The tests were executed in the following manner:
At first, the bottles were filed with 1.5 L VE-water, thereafter 3.0-3.1 bar CO2 was led into
the bottles via an attachment. Then the quantity of CO2 was dissolved into the water by means
of shaking. All CO2 was considered to be dissolved only after the test manometer indicated 0
bar.
1.) The bottles were now dipped shortly into concentrated belt lubricant (BSM) (~ 2 cm) and
thereafter allowed to stand for 24 hours.
2.) Thereafter the bottles were filled in crates and allowed to stand in a climatic cabinet at 38
°C and 85 % relative humidity for 6 days.
As reference a bottle was taken along in each crate which was not dipped into BDM.
At the end of the test a visual estimation was made. Here, 5 categories are distinguished.
O: No damages
30

A: Minor damages
B: Moderate, superficial cracks
C: Multiple, moderately deep cracks
D: Multiple, deep cracks
31



From the above table it can be seen that each of the lubricant concentrates according to
the present invention shows at least comparable, most embodiments an enhanced
lubricity compared with lubricant concentrates according to the state of the art.
Additionally, they are stable as clear solutions and provide more uniforms lubrication
on tracks and chains of feed and conveyance installation in food industry due to the
improved variance.
33

We Claim t
1. Lubricant concentrate containing the following components:
(i) at least one amine;
(ii) at least one phosphate according to the general formula I,

wherein
R1a, R1b and R1c independently from each other are the same or different and
indicate C1-C30-alkyl or -([CH2]m-O)n-R1d, where m is 2 or 3, n is 1 to 10 and
R1d is C1-C30-alkyl, phenyl or phenyl-(C1-C10-alkyl)-;
(iii) at least one acid;
(iv) optionally at least one ether carboxylic acid compound with the general formula II
R20-(O(CH2)m)nOCH2COO-M+ (II)
wherein
R20 is a saturated, linear or branched alkyl rest with 1 to 22 carbon atoms or a mono or
polyunsaturated linear or branched alkenyl or alkynyl rest with 2 to 22 carbon atoms or
an aryl rest optimally substituted with at least one C1-C22 alkyl, C2-C22 alkenyl or C2-
C22-alkynyl,
n is a positive number between 0 and 30, and m is 2 or 3,
M is hydrogen or an alkali metal;
(v) optionally at least one further aid or additive;
whereby the portion of the components (i) + (ii) + (iii) with respect to the concentrate
is 1 to 100 wt. %, and said optional components (iv) and (v) may be present in portions
up to 99 wt. %, whereby the portions (i) - (v) are chosen such that the total results in 100
wt. %.
34

2. Concentrate according to claim 1, wherein the concentrate contains the components (i): (ii)
in a proportion of 1 : 0.5 to 1 : 2, always calculated on basis of the weight of all
components (i) as well as (ii) and/or that it contains the components (i): (iii) in a proportion
of 1 : 0.75 to 1 : 3, always calculated on basis of the weight of all components (i) as well as
(iii).
3. Concentrate according to claim 1 or 2, wherein
(i) is at least one amine of the general formula (VIII)

wherein R6, R7, R8 and R9 independently from each other are the same or different and
indicate:
hydrogen,
a substituted or unsubstituted, linear or branched alkyl rest with 1 to 22 C-
atoms or a mono or polyunsaturated alkenyl rest with 2 to 22 C-atoms, which
could display as substituents one or more hydroxyl, amine, imine, halogen and /
or carboxyl rests or
a substituted or unsubstituted phenyl rest, which could display as substituents
one or more amine, imine, hydroxyl, halogen, carboxyl and / or possibly again
substituted, linear or branched, saturated or mono or polyunsaturated alkyl rest
with 1 to 22 C-atoms,
A2 indicates a linear or branched alkylene group with 1 to 8 carbon atoms, and
n is a positive integer number in the range of 1 to 30, preferably 1 or 2,
(ii) is at least one compound selected from components of formula (I), wherein
R1a, R1b and R1c independently from each other are the same or different and
indicate -([CH2]m-O)n-R1d, where m is 2, n is 1 to 3 and R1d is C1-C30-alkyl,
(iii) is at least one saturated aliphatic monocarboxylic acids containing from one up
to eight carbon atoms.
35

4. Concentrate according to any of claims 1 to 3, wherein
(i) is N-tallow-1,3-diaminopropane,N-coco-1,3-diaminopropane and/or N-oleyl-1,3-
diaminopropane;
(ii) is at least one compound selected from compounds of formula (I), wherein R1a, R1b and R1c
have the same meaning and indicate - ([CH2]m-O)n-R1d, where m is 2, n is 1 to 3 and R1d is
C1-C30-alkyl
(iii) is acetic acid.
5. Concentrate according to any of claims 1 to 4, wherein in component (ii) R1a, R1b and R1c have
the same meaning and indicate -CH2-CH2-O-(C1-C10-alkyl).
6. Concentrate according to any of claims 1 to 5, wherein components (iv) and (v) are present and
(iv) is at least one compound selected from compounds of formula (II), wherein R20 is a C3-C18-
alkyl or alkenyl group, n is between 2 and 9 and M is hydrogen, sodium or potassium,
(v) is a) water and b) optionally at least one further aid or additive.
7. Concentrate according to any of claims 1 to 6 containing as component (iii)
additionally one or more unsaturated carboxylic acids containing between 7 and 20
carbon atoms, preferably oleic acid.
8. Concentrate according to any of claims 1 to 7, characterized by the following composition:
(i) 2 to 6 wt. %,
(ii) 2 to 6 wt. %,
(iii) 1 to 3,5 wt. %,
(iv) 2 to 6 wt. % and
(v) 80 to 93 wt. %,
whereby the quantities of (i) - (iv) are chosen such that the total sum of it is 100 wt. %.
9. Process for the preparation of a lubricant concentrate according to any of claims 1 to 8 by
means of mixing of the components (i) to (iii) and possibly addition of further components
(iv) and/or (v).
36

10. Lubricant solution containing as components
a) a lubricant concentrate according to any of claims 1 to 8 and
b) at least one solvent selected from water, polyethylene glycol, alcohol, ether and
polyether;
whereby component a) is diluted with component b) by a dilution factor of 2 to 10000.
37
11. Lubricant solution according to claim 10, wherein component b) is water.
12. The phosphate according to general formula (I) of claim 1, the lubricant concentrate
according to any of claims 1 to 8 or the lubricant solution according to claim 10 or 11 adapted
for lubricating and/or cleaning of feed and conveyance installations in the food industry
13. The phosphate, the lubricant concentrate or the lubricant solution according to claim 12
adapted for lubricating and cleaning of feed and conveyance installations, in particular by
means of immersion or automatic belt lubricating installations, in the food industry,
particularly for the conveyance of glass and plastics bottles, particularly in this case
polyethylene terephthalate (PET), polyethylene naphthalate (PEN) or polycarbonate
(PC), boxes, metal cans, glasses, vessels, refillable cans, barrels or vessels, such as
KEGs, beverage containers, paper and cardboard holders and the like.
14. Process for the conveyance of beverage packings made of metal, glass, paper, cardboard
and/or plastic, whereby a beverage conveyance installation with a lubricating and cleaning
amount of a lubriacnt solution according to claim 10 or 11 is contacted.

The present invention relates to a lubricant concentrate containing the following
components
(i) at least one amine,
(ii) at least one phosphate according to the general formula (I),

(iii) at least one acid,
(iv) optionally at least one ether carboxylic acid compounds with the general
formula (II)
R20-(O(CH2)m)nOCH2COO-M+ (II),
(v) optionally at least one further aid or additive.

Documents:

03351-kolnp-2007-abstract.pdf

03351-kolnp-2007-claims.pdf

03351-kolnp-2007-correspondence others 1.1.pdf

03351-kolnp-2007-correspondence others.pdf

03351-kolnp-2007-description complete.pdf

03351-kolnp-2007-form 1.pdf

03351-kolnp-2007-form 2.pdf

03351-kolnp-2007-form 3.pdf

03351-kolnp-2007-form 5.pdf

03351-kolnp-2007-international publication.pdf

03351-kolnp-2007-international search report.pdf

03351-kolnp-2007-others.pdf

03351-kolnp-2007-pct priority document notification.pdf

03351-kolnp-2007-pct request form.pdf

03351-kolnp-2007-priority document.pdf

3351-KOLNP-2007-(06-09-2013)-ANNEXURE TO FORM 3.pdf

3351-KOLNP-2007-(06-09-2013)-CLAIMS.pdf

3351-KOLNP-2007-(06-09-2013)-CORRESPONDENCE.pdf

3351-KOLNP-2007-(06-09-2013)-OTHERS.pdf

3351-KOLNP-2007-(09-09-2013)-CORRESPONDENCE.pdf

3351-KOLNP-2007-(09-09-2013)-OTHERS.pdf

3351-KOLNP-2007-(10-03-2014)-CLAIMS.pdf

3351-KOLNP-2007-(10-03-2014)-CORRESPONDENCE.pdf

3351-KOLNP-2007-(10-03-2014)-MARKEDUP CLAIMS.pdf

3351-KOLNP-2007-(23-12-2011)-CORRESPONDENCE.pdf

3351-KOLNP-2007-(29-08-2013)-ANNEXURE TO FORM 3.pdf

3351-KOLNP-2007-(29-08-2013)-CORRESPONDENCE.pdf

3351-KOLNP-2007-(29-08-2013)-OTHERS.pdf

3351-KOLNP-2007-CLAIMS 1.1.pdf

3351-KOLNP-2007-CORRESPONDENCE 1.3.pdf

3351-kolnp-2007-CORRESPONDENCE-1.2.pdf

3351-KOLNP-2007-CORRESPONDENCE-1.4.pdf

3351-KOLNP-2007-CORRESPONDENCE-1.5.pdf

3351-KOLNP-2007-FORM 13.1.1.pdf

3351-KOLNP-2007-FORM 13.pdf

3351-kolnp-2007-form 18.pdf

abstract-03351-kolnp-2007.jpg

Petition under rule 137- for filing documents under Sec 8.pdf


Patent Number 260559
Indian Patent Application Number 3351/KOLNP/2007
PG Journal Number 19/2014
Publication Date 09-May-2014
Grant Date 07-May-2014
Date of Filing 10-Sep-2007
Name of Patentee JOHNSONDIVERSEY INC.
Applicant Address 8310 16TH STREET, M/S 509,STURTEVANT, WI
Inventors:
# Inventor's Name Inventor's Address
1 THEYSSEN, HOLGER DR. KAUSCH STR. 19, D-67251 FREINSHEIM
2 WEIMER, STEPHAN KIRCHWEG 2B, DE-64560 RIEDSTADT
3 BRUSCHI, FRANCO VIA POLENGHI, N°45/A, I-26845 CODOGNO
4 STANGA, MARIO VISMARA 22, BASSANO 26060 SAN
PCT International Classification Number C10M 173/02
PCT International Application Number PCT/US2006/003728
PCT International Filing date 2006-02-02
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 05002950.3 2005-02-11 EUROPEAN UNION