Title of Invention	"MACHINING TOOL"
Abstract	The invention relates to a tool for machining made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating applied to said base material. According to the invention, an additional coating of one or more metals from the group comprising aluminium, copper, zinc, titanium, nickel, tin or base alloys of these metals is applied to the hard material coating.

Title of Invention

"MACHINING TOOL"

Abstract

The invention relates to a tool for machining made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating applied to said base material. According to the invention, an additional coating of one or more metals from the group comprising aluminium, copper, zinc, titanium, nickel, tin or base alloys of these metals is applied to the hard material coating.

Full Text	TOOL FOR MACHINING The invention relates to a tool for machining made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating applied to said base material. Tools for machining that are made from hard metal or cermet sti 11 do not have the optimum wear resistance and edge life in many specific machining cases, so that they are also additionally provided with a single-layer or multi-layer hard material layer. Examples of such hard material layers are carbidic, nitridic, carbonitridic, oxidic or boridic compounds of various metals and nonmetallic, superhard compounds. Hard material layers that are used particularly frequently are, for example, titanium nitride, titanium carbonitride and aluminium oxide, which are used alone or in combination with one another. To apply these hard material layers, chemical or physical vapour deposition processes, known as CVD and PVD processes, are primarily used. Depending on the coating processes used, production-induced surface roughnesses of the base material to be coated, the crystallinity of the hard materials and process-induced layer growth characteristics as well as impurities cause undesired microroughnesses on the free surface of the coating, which can impair the wear resistance and consequently the edge life of the tool. In order to reduce these surface roughnesses as much as possible, arid thereby improve the cutting edge stability, such tools have been subjected to a subsequent smoothing treatment after the application of the hard material layer, at least on the free surfaces or cutting edges on which the removed chip runs off. A process that is used very often today for the subsequent treatment of the surface of the layer is the blasting process. In the case of this process, generally granular abrasives with grain sizes of approximately 1-2000 jam are fired in a dry form by compressed air or in a wet form as a suspension by positive pressure onto the surface and smoothing of the surface is achieved as a result. Corundum is frequently used as the abrasive. DE 199 24 422 C2 describes for example such a blasting process in which A120( or SiC with grain sizes of 1-100 ym are used in particular as the abrasive and, as a difference from other blasting processes, the abrasive has an angular grain form. A disadvantage of such blasting processes that are used is that reproduced, controlled removal of thin top layers or of parts of the hard material layers can often only be achieved with difficulty and considerable effort. in addition, in the case of the previously known blasting processes, no colour-changing top layer is achieved. Another possible way of increasing the wear resistance of cutting tools coated with hard material is to apply soft; sliding layers, on which the chip running off slides away, whereby the wear of the tool face is reduced. At the same time, the friction between the flank of the tool and the workpiece is reduced, whereby the wear in the region of the tool flank is also reduced. WO 96/30148 describes for example a cutting tool with which sulphides, selenides, tellurides or mixed compounds thereof are applied as corresponding sliding layers. The disadvantage of such layers is that they usually only have1 a low thermal, chemical and mechanical stability with respect to abrasion and sometimes inadequate layer adhesion under the high thermal, chemical and mechanical stresses that occur during machining. In addition, no change in the colouring, and consequently possible improvement in the detection of wear, is achieved with such layers either. The object of the present invention is to provide a tool for machining which, in comparison with previously known, subsequently treated tools, has improved wear resistance, and consequently a longer edge life, can be produced cost-effectively and inexpensively and with which much improved detection of wear is ensured. According to the invention, this is achieved by an additional coating of one or more metals from the group comprising aluminium, copper, zinc, titanium, nickel, tin or base alloys of these metals being applied to the hard material coating. Completely surprisingly, it has been found that improved chip flow is achieved by the subsequent treatment according to the invention, so that, in the case of dry turning in particular, there is no damage to the cutting edges, and consequently there is a significant increase in the possible operating time of the cutting tool. Added to this as an advantageous side effect is that the colouring of the cutting tool is changed by the metallically bright character and, as a result, the detection of wear is made much easier, in particular in the case of cutting tools that are provided with a dark-grey or dark-brown or black aluminium oxide layer as the uppermost; hard material layer. The coating according to the invention can be advantageously used on all known hard material layers, such as in the case of layers of carbides, nitrides, carbonitrides or borides of the metals of the group iVa-VIa of the periodic table, such as for example Ti, Zr, Hf and combinations thereof and these together with additives of, for example, oxygen and/or boron, as well as in the case of layers of TiAlN and in the case of layers that consist entirely or partially of aluminium oxide and/or zirconium oxide. For the application of the coating according to the invention it is possible to use, inter alia, known coating processes such as CVD or PVD processes as well as other known coating processes. With regard to an advantageous thickness of the coating according to the invention, layer thicknesses in the range of 0.05-50 um, preferably in the range of 0.1-10 um, have proven to be successful. The application of the coating according to the invention is of advantage in particular whenever the uppermost Layer of the hard material coating comprises a layer containing aluminium oxide, since the detection of wear is particularly problematic due to the great light absorption of the aluminium oxide. In the case of hard material coatings in which the uppermost layer contains titanium carbide, titanium carbonitride, titanium nitride or titanium diboride, particularJy good results with regard to improvement of the wear resistance are achieved by the application of the additional coating according to the invention. Aluminium and aluminium base alloys, in particular an aluminium base alloy with 12% by weight silicon, and bronze and bronze alloys, which on the one hand have excellent sliding or lubricating properties and on the other hand outstandingly even out the irregularities of the uppermost layer of the hard material layer, and consequently significantly improve the wear behaviour of the tool treated according to the invention, have proven to be particularly advantageous materials for the coating layers according to the invention. In addition, specific changes in the colour of the tool are obtained, making particularly clear detection of wear on the tool possible by virtue of the great light reflect ion. In particular, it is expedient to perform the application of a coating according to the invention in the case of indexable inserts. In this case, it is particularly inexpensive and easy to perform the application of the coating according to the invention by a blasting treatment using an abrasive consisting of the desired coating metal. It may also be of advantage to subject the uppermost hard material layer to a blasting treatment with a nonmetallic abrasive, such as corundum for example, before the application of the coating according to the invention. As a result, the surface is already pre-smoothed and the application of the coating according to the invention can then be performed with smaller layer thicknesses. Apart troni this special advantageous pre treatment for smoothing the uppermost hard material layer, it goes without saying that other known processes, such as for example mechanical brushing, abrasive media burnishing, etc., can also be used. The invention is explained in more detail below on the basis of preparative examples. Example 1 Indexable inserts comprising a hard metal substrate with 5.8% Co, 1% TiC, 0,8% ZrC, 0.2% ZrN, 4.1% TaC, the remainder we, coated with multiple layers of an 18 urn thick Ti (C,N) /Al203 mixed oxide/Ti (C, N, B)/TiN hard material coating, were blasted for 1 minute in a blasting installation with grit of an aluminium-silicon alloy with 12% by weight silicon and a grain size of 100-315 018µm under a pressure of 2.5 bar. The indexable inserts were thereby provided with a thin, metallically br i ght coa t; irig . These indexable inserts coated according to the invention with an Al-Si alloy were used in a machining test for the turning of construction steel Ck45, with a strength of 700 N/mm2, at a cutting rate of 300 m/min, with a feed rate of 0.25 mm/rev and a cutting depth of 2 mm, without coolant. For purposes of comparison, the same hard material coated indexable inserts, but without the coating according to the invention, were used for turning under the same conditions. It was thereby found that, with the indexable inserts not coated according to the invention, after turning for only 1 minute the cutting edges directly next to the wear marks were already damaged. These instances of damage are shown in Figure 1 by way of example by photos of the tool face and the tool flank of an indexable insert. With the indexable inserts coated according to the invention, no damage could be found on the cutting edge after turning for the same time of 1 minute, which is shown in Figure 2 by way of example on an indexable insert:. It is evident from this that the edge life of the cutting edge is prolonged by the metallic coating according to the invention. Examp1e 2 Indexable inserts with the same hard metal substrate/hard material layer construction as in Example 1 were blasted for 1 minute in a blasting installation with brass grit with a grain size of 100- 315 urn under a pressure of 2.5 bar. These indexable inserts coated with brass according to the invention were once again subjected to the same machining test as in Example 1 together with identical indexable inserts without the brass coating according to the invention and were compared with one another. In a way similar to that already shown in Figure 1 by way of example on an indexable insert according to Example .1 , after turning for only 1 minute the indexable inserts not coated according to the invention were already damaged on the cutting edges by the running off chip. The indexable inserts coated with brass according to the invent:) on did not exhibit any damage on the cutting edges after turning for the same time. This is shown in Figure ; by way of example on an indexable insert. Example _3_ The same indexable inserts as in Example 1, on the one hand coated according to the invention and on the other hand without an additional coating, were used in a second machining test for the turning of steel Ck45, with a strength of 700 N/mrn2, at a cutting rate of 320 m/mim and with a feed rate of 0.3 mm/rev and a cutting depth o I: 2 mm, using a cooling emulsion. It was thereby found that, after turning for only 1 minute the indexable inserts coated according to the invention were already damaged on the underside by the running-off chip in such a way that the cutting edges at this po int of the indexable insert could no longer be used tor turning. These instances of damage are shown in Figure1 4 by way of example by the photos of the tool face of an indexable insert. In the case of the indexable inserts coated according to the invention, even after turning for 6 minutes no damage caused by the rurming-off chip was evident at all on the underside, which is shown in Figure 5 by way of example by the photo of an indexable insert. It LS evident from these examples that the serviceability of hard material coated tools can be signiEicaru ly increased by the treatment for them according to the invention. Example 4 Indexable inserts comprising a hard metal substrate with 6% Co, the remainder WC, were coated with a 16 μm thick multi-layer hard material coating of Ti(C,N)/Ti(C,N,B)/A1203 mixed oxide. Subsequently, some of the indexable inserts were coated with a coating according to the invention of an Al-Si coating as in Example 1. In a comparative machining test, both variants of the indexable insert were used for the turning of cast ferrous metal GG25, hardness 190 HB, at a cutting rate of 350 m/min, with a feed rate of 0.3 mm/rev and a cutting depth of 2 mm, without the use of a cooling emulsion. The indexable inserts with the coating according to the invention of the Al-Si alloy had on average a 28% higher edge life until the maximum permissible wear mark width of 0.3 mm was reached. Example 5 Indexable inserts comprising a hard metal substrate with 6% Co, 2% TaC, the remainder WC, were coated as in Example 4 and some of the inserts were coated with a coating according to the invention of an Al-Si alloy as in Example 1. Both variants of the indexable insert were subjected to the same comparative machining test as in Example 4. Indexable inserts with the Al-Si coating according to the invention had on average a 21% higher edge life until the maximum permissible wear mark width 0.3 mm was reached. Patent claims 1. Tool for machining made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating applied to said base material, characterized in that an additional coating of one or more metals from the group comprising aluminium, copper, zinc, titanium, nickel, tin or base alloys of these metals is applied to the hard material coating. 2. Tool for machining according to Claim 1, characterized in that the layer thickness of the additional coating lies in the range of 0.05-50 um, preferably 0.1-10 um. 3. Tool for machining according to Claim 1 or 2, characterized in that the uppermost layer of the hard material coating comprises a layer containing aluminium oxide. 4. Tool for machining according to Claim 1 or 2, characterized in that the uppermost layer of the hard material coating comprises a layer containing titanium carbide, titanium carbonitride, titanium nitride or titanium boride. 5. Tool for machining according to one of Claims 1 to 4, characterized in that the additional coating consists of aluminium or a base alloy of aluminium. 6. Tool for machining according to Claim 5, characterized in that the additional coating consists of an aluminium base alloy with 12% by weight silicon. 7. Tool for machining according to one of Claims 1 to 4, characterized in that the additional coating consists of a brass or bronze alloy. 8. Tool for machining according to one of Claims 1 to 7, characterized in that the tool is an indexable insert. 9. Method for producing a tool for machining according to one of Claims 1 to 8, characterized in that the application of the additional coating is performed by blasting treatment of the uppermost hard material layer, granular abrasives with the desired composition of the additional coating being used for the blasting. 10. Method for producing a tool for machining according to one of Claims 1 to 9, characterized in that the uppermost hard material layer is subjected to a blasting treatment with a nonmetallic abrasive, such as corundum for example, before the application of the additional coating.

Full Text

TOOL FOR MACHINING
The invention relates to a tool for machining made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating applied to said base material.
Tools for machining that are made from hard metal or cermet sti 11 do not have the optimum wear resistance and edge life in many specific machining cases, so that they are also additionally provided with a single-layer or multi-layer hard material layer.
Examples of such hard material layers are carbidic, nitridic, carbonitridic, oxidic or boridic compounds of various metals and nonmetallic, superhard compounds. Hard material layers that are used particularly frequently are, for example, titanium nitride, titanium carbonitride and aluminium oxide, which are used alone or in combination with one another.
To apply these hard material layers, chemical or physical vapour deposition processes, known as CVD and PVD processes, are primarily used.
Depending on the coating processes used, production-induced surface roughnesses of the base material to be coated, the crystallinity of the hard materials and process-induced layer growth characteristics as well as impurities cause undesired microroughnesses on the free surface of the coating, which can impair the wear resistance and consequently the edge life of the tool. In order to reduce these surface roughnesses as much as possible, arid thereby improve the cutting edge stability, such tools have been subjected to a subsequent smoothing treatment after the application of the hard material layer, at least on the free surfaces or cutting edges on which the removed chip runs off. A process that is used very often today for the subsequent treatment of the surface of the layer is the blasting process. In the case of this process,

generally granular abrasives with grain sizes of approximately 1-2000 jam are fired in a dry form by compressed air or in a wet form as a suspension by positive pressure onto the surface and smoothing of the surface is achieved as a result. Corundum is frequently used as the abrasive.
DE 199 24 422 C2 describes for example such a blasting process in which A120( or SiC with grain sizes of 1-100 ym are used in particular as the abrasive and, as a difference from other blasting processes, the abrasive has an angular grain form.
A disadvantage of such blasting processes that are used is that reproduced, controlled removal of thin top layers or of parts of the hard material layers can often only be achieved with difficulty and considerable effort. in addition, in the case of the previously known blasting processes, no colour-changing top layer is achieved.
Another possible way of increasing the wear resistance of cutting tools coated with hard material is to apply soft; sliding layers, on which the chip running off slides away, whereby the wear of the tool face is reduced. At the same time, the friction between the flank of the tool and the workpiece is reduced, whereby the wear in the region of the tool flank is also reduced.
WO 96/30148 describes for example a cutting tool with which sulphides, selenides, tellurides or mixed compounds thereof are applied as corresponding sliding
layers.
The disadvantage of such layers is that they usually only have1 a low thermal, chemical and mechanical stability with respect to abrasion and sometimes inadequate layer adhesion under the high thermal,

chemical and mechanical stresses that occur during machining. In addition, no change in the colouring, and consequently possible improvement in the detection of wear, is achieved with such layers either.
The object of the present invention is to provide a tool for machining which, in comparison with previously known, subsequently treated tools, has improved wear resistance, and consequently a longer edge life, can be produced cost-effectively and inexpensively and with which much improved detection of wear is ensured. According to the invention, this is achieved by an additional coating of one or more metals from the group comprising aluminium, copper, zinc, titanium, nickel, tin or base alloys of these metals being applied to the hard material coating.
Completely surprisingly, it has been found that improved chip flow is achieved by the subsequent treatment according to the invention, so that, in the case of dry turning in particular, there is no damage to the cutting edges, and consequently there is a significant increase in the possible operating time of the cutting tool.
Added to this as an advantageous side effect is that the colouring of the cutting tool is changed by the metallically bright character and, as a result, the detection of wear is made much easier, in particular in the case of cutting tools that are provided with a dark-grey or dark-brown or black aluminium oxide layer as the uppermost; hard material layer.
The coating according to the invention can be advantageously used on all known hard material layers, such as in the case of layers of carbides, nitrides, carbonitrides or borides of the metals of the group iVa-VIa of the periodic table, such as for example Ti, Zr, Hf and combinations thereof and these together with

additives of, for example, oxygen and/or boron, as well as in the case of layers of TiAlN and in the case of layers that consist entirely or partially of aluminium oxide and/or zirconium oxide.
For the application of the coating according to the invention it is possible to use, inter alia, known coating processes such as CVD or PVD processes as well as other known coating processes.
With regard to an advantageous thickness of the coating according to the invention, layer thicknesses in the range of 0.05-50 um, preferably in the range of 0.1-10 um, have proven to be successful.
The application of the coating according to the invention is of advantage in particular whenever the uppermost Layer of the hard material coating comprises a layer containing aluminium oxide, since the detection of wear is particularly problematic due to the great light absorption of the aluminium oxide.
In the case of hard material coatings in which the uppermost layer contains titanium carbide, titanium carbonitride, titanium nitride or titanium diboride, particularJy good results with regard to improvement of the wear resistance are achieved by the application of the additional coating according to the invention.
Aluminium and aluminium base alloys, in particular an aluminium base alloy with 12% by weight silicon, and bronze and bronze alloys, which on the one hand have excellent sliding or lubricating properties and on the other hand outstandingly even out the irregularities of the uppermost layer of the hard material layer, and consequently significantly improve the wear behaviour of the tool treated according to the invention, have proven to be particularly advantageous materials for the coating layers according to the invention. In

addition, specific changes in the colour of the tool are obtained, making particularly clear detection of wear on the tool possible by virtue of the great light reflect ion.
In particular, it is expedient to perform the application of a coating according to the invention in the case of indexable inserts. In this case, it is particularly inexpensive and easy to perform the application of the coating according to the invention by a blasting treatment using an abrasive consisting of the desired coating metal.
It may also be of advantage to subject the uppermost hard material layer to a blasting treatment with a nonmetallic abrasive, such as corundum for example, before the application of the coating according to the invention. As a result, the surface is already pre-smoothed and the application of the coating according to the invention can then be performed with smaller layer thicknesses.
Apart troni this special advantageous pre treatment for smoothing the uppermost hard material layer, it goes without saying that other known processes, such as for example mechanical brushing, abrasive media burnishing, etc., can also be used.
The invention is explained in more detail below on the basis of preparative examples.
Example 1
Indexable inserts comprising a hard metal substrate with 5.8% Co, 1% TiC, 0,8% ZrC, 0.2% ZrN, 4.1% TaC, the remainder we, coated with multiple layers of an 18 urn thick Ti (C,N) /Al203 mixed oxide/Ti (C, N, B)/TiN hard material coating, were blasted for 1 minute in a blasting installation with grit of an aluminium-silicon alloy with 12% by weight silicon and a grain size of

100-315 018µm under a pressure of 2.5 bar. The indexable inserts were thereby provided with a thin, metallically br i ght coa t; irig .
These indexable inserts coated according to the invention with an Al-Si alloy were used in a machining test for the turning of construction steel Ck45, with a strength of 700 N/mm2, at a cutting rate of 300 m/min, with a feed rate of 0.25 mm/rev and a cutting depth of 2 mm, without coolant. For purposes of comparison, the same hard material coated indexable inserts, but without the coating according to the invention, were used for turning under the same conditions. It was thereby found that, with the indexable inserts not coated according to the invention, after turning for only 1 minute the cutting edges directly next to the wear marks were already damaged. These instances of damage are shown in Figure 1 by way of example by photos of the tool face and the tool flank of an indexable insert.
With the indexable inserts coated according to the invention, no damage could be found on the cutting edge after turning for the same time of 1 minute, which is shown in Figure 2 by way of example on an indexable insert:.
It is evident from this that the edge life of the cutting edge is prolonged by the metallic coating according to the invention.
Examp1e 2
Indexable inserts with the same hard metal
substrate/hard material layer construction as in
Example 1 were blasted for 1 minute in a blasting
installation with brass grit with a grain size of 100-
315 urn under a pressure of 2.5 bar.
These indexable inserts coated with brass according to
the invention were once again subjected to the same
machining test as in Example 1 together with identical

indexable inserts without the brass coating according to the invention and were compared with one another. In a way similar to that already shown in Figure 1 by way of example on an indexable insert according to Example .1 , after turning for only 1 minute the indexable inserts not coated according to the invention were already damaged on the cutting edges by the running off chip.
The indexable inserts coated with brass according to the invent:) on did not exhibit any damage on the cutting edges after turning for the same time. This is shown in Figure ; by way of example on an indexable insert.
Example _3_
The same indexable inserts as in Example 1, on the one hand coated according to the invention and on the other hand without an additional coating, were used in a second machining test for the turning of steel Ck45, with a strength of 700 N/mrn2, at a cutting rate of 320 m/mim and with a feed rate of 0.3 mm/rev and a cutting depth o I: 2 mm, using a cooling emulsion. It was thereby found that, after turning for only 1 minute the indexable inserts coated according to the invention were already damaged on the underside by the running-off chip in such a way that the cutting edges at this po int of the indexable insert could no longer be used tor turning. These instances of damage are shown in Figure1 4 by way of example by the photos of the tool face of an indexable insert. In the case of the indexable inserts coated according to the invention, even after turning for 6 minutes no damage caused by the rurming-off chip was evident at all on the underside, which is shown in Figure 5 by way of example by the photo of an indexable insert. It LS evident from these examples that the serviceability of hard material coated tools can be signiEicaru ly increased by the treatment for them according to the invention.

Example 4
Indexable inserts comprising a hard metal substrate
with 6% Co, the remainder WC, were coated with a 16 μm
thick multi-layer hard material coating of
Ti(C,N)/Ti(C,N,B)/A1203 mixed oxide. Subsequently, some
of the indexable inserts were coated with a coating
according to the invention of an Al-Si coating as in
Example 1.
In a comparative machining test, both variants of the
indexable insert were used for the turning of cast
ferrous metal GG25, hardness 190 HB, at a cutting rate
of 350 m/min, with a feed rate of 0.3 mm/rev and a
cutting depth of 2 mm, without the use of a cooling
emulsion.
The indexable inserts with the coating according to the
invention of the Al-Si alloy had on average a 28%
higher edge life until the maximum permissible wear
mark width of 0.3 mm was reached.
Example 5
Indexable inserts comprising a hard metal substrate with 6% Co, 2% TaC, the remainder WC, were coated as in Example 4 and some of the inserts were coated with a coating according to the invention of an Al-Si alloy as in Example 1. Both variants of the indexable insert were subjected to the same comparative machining test as in Example 4.
Indexable inserts with the Al-Si coating according to the invention had on average a 21% higher edge life until the maximum permissible wear mark width 0.3 mm was reached.

Patent claims
1. Tool for machining made from a hard-metal, cermet
or ceramic base material and a single-layer or
multi-layer hard material coating applied to said
base material, characterized in that an additional
coating of one or more metals from the group
comprising aluminium, copper, zinc, titanium,
nickel, tin or base alloys of these metals is
applied to the hard material coating.
2. Tool for machining according to Claim 1,
characterized in that the layer thickness of the
additional coating lies in the range of 0.05-50 um,
preferably 0.1-10 um.
3. Tool for machining according to Claim 1 or 2,
characterized in that the uppermost layer of the
hard material coating comprises a layer containing
aluminium oxide.
4. Tool for machining according to Claim 1 or 2,
characterized in that the uppermost layer of the
hard material coating comprises a layer containing
titanium carbide, titanium carbonitride, titanium
nitride or titanium boride.
5. Tool for machining according to one of Claims 1 to
4, characterized in that the additional coating
consists of aluminium or a base alloy of aluminium.
6. Tool for machining according to Claim 5,
characterized in that the additional coating
consists of an aluminium base alloy with 12% by
weight silicon.
7. Tool for machining according to one of Claims 1 to
4, characterized in that the additional coating
consists of a brass or bronze alloy.

8. Tool for machining according to one of Claims 1 to
7, characterized in that the tool is an indexable
insert.
9. Method for producing a tool for machining according
to one of Claims 1 to 8, characterized in that the
application of the additional coating is performed
by blasting treatment of the uppermost hard
material layer, granular abrasives with the desired
composition of the additional coating being used
for the blasting.
10. Method for producing a tool for machining according
to one of Claims 1 to 9, characterized in that the
uppermost hard material layer is subjected to a
blasting treatment with a nonmetallic abrasive,
such as corundum for example, before the
application of the additional coating.

Documents:

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Patent Number

272709

Indian Patent Application Number

3430/DELNP/2007

PG Journal Number

17/2016

Publication Date

22-Apr-2016

Grant Date

21-Apr-2016

Date of Filing

08-May-2007

Name of Patentee

CERATIZIT AUSTRIA GESELLSCHAFT M.B.H

Applicant Address

A-6600 REUTTE/TIROL, AUSTRIA.

Inventors:

#	Inventor's Name	Inventor's Address
1	WALLGRAM, WOLFGANG	GIPSMUHLSTRASSE 32A, A-6600 BREITENWANG, AUSTRIA.
2	SCHLEINKOFER, UWE	LARCHENWEG 1, A-6600 REUTTE, AUSTRIA
3	GLGL, KARL	STADTGRABEN 7, A-6682 VILS, AUSTRIA
4	THURNER, JOSEF	ACHFELD 13, A-6611 HEITERWANG, AUSTRIA
5	SCHINTLMEISTER, WILFRIED	DR.-BLAAS-STRASSE 20, A-6600 REUTTE, AUSTRIA

PCT International Classification Number

C23C 28/00

PCT International Application Number

PCT/AT2005/000478

PCT International Filing date

2005-11-28

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	GM 872/2004	2004-12-02	Austria