Title of Invention

METHOD OF TRANSERING A PRINT PATTERN ONTO AN OBJECTIVE BODY UNDER LIQUID PRESSURE

Abstract On a print pattern (12T) transferred on an objective body (34) under a liquid pressure is formed an intermediate coat layer (42) containing a binder resin of a graft copolymer comprising two unsaturation group containing vinyl monomers having respective glass transition temperatures different from each other and then a protection coat layer (46) containing at least one of an acrylic polyol resin having a hydroxyl value of 10 - 200 mgKOH/g and a polyester polyol resin having a hydroxyl group of 10 - 400 mgKOH/g.
Full Text METHOD OF TRANSFERING A PRINT PATTERN ONTO AN
OBJECTIVE BODY UNDER LIQUID PRESSURE
DESCRIPTION
A liquid- pressure pattern transfer method, a liquid pressure
transferred article and coating material for liquid pressure pattern_transfer
TECHNICAL FIELD
This invention pertains to a method of transferring a print pattern on
various articles (objective bodies) such as metal articles, plastic moulds,
ceramic articles and so on, a liquid pressure transfer article produced by this
method and a coating material used for the liquid pressure pattern transfer
method, and more particularly a method of suitably transferring a print
pattern on such objective bodies as car panels, which will be used under
severe atmospheres of temperature, humidity and so on, a liquid pressure
transfer article produced by this method and a coating material suitably used
for the liquid pressure pattern transfer method.
TECHNICAL BACKGROUND
A so-called liquid pressure pattern transfer method has been used for
printing various patterns on an objective body having a complicated surface
configuration of roughness or the like, but not a plane surface configuration.
This liquid pressure pattern transfer method is one in which a pattern
transfer film of liquid soluble or liquid swelling material having a
predetermined print pattern of no liquid solubility is floated on a liquid
surface within a transfer bath while being sequentially supplied thereto and
is made swelled by the liquid and then the objective body is immersed into
the liquid within the transfer bath in a manner faced to the pattern transfer
film so that the print pattern on the pattern transfer film is transferred onto
the objective body by using the liquid pressure.
Since the print pattern on the pattern transfer film is in the dried and
solid state, an ink of the print pattern is required to be activated by coating
an activator on the print pattern so that tackiness is restored before the
liquid pattern transfer is made. This activation operation is made either
before the pattern transfer enters the transfer bath or after the pattern
transfer film enters the transfer bath and is floated on liquid surface within
the transfer bath. In general, the activator used for the activation operation
comprises a binder resin imparting adhesion to the ink of the print pattern
and a plasticizer imparting extensive or drawing property to a solvent and
the ink (see JP8-2388987 or JP8-238898).
In case that the objective body is formed of a non-polyolefin resin such
(acrylonitrile butadiene styrene copolymer)
as ABS/resin, polycarbonate resin, vinyl chloride or acrylic resin, the print
pattern can be attached to the objective body in a good condition even though
the print pattern is activated in a conventional manner, but in case that the
objective body is formed of a polyolefin resin such as polyethylene or
polypropylene, it is difficult to attach to the objective body the print pattern
activated in a conventional manner because it has poor adhesion to the
polyolefin resin. To avoid this, various treatments such as primer treatment,
ultraviolet ray radiation, corona discharge or the like have been made to the
objective body before the print pattern is transferred thereto.
Of late, there has been a method in which the print pattern can be
transferred onto the objective body of polyolefin resin without any primary
treatment (see JP9-1996).
In this method, an activator including a binder resin of a chlorinated
polyolefin having a hydrophilic component imparted thereto is used for
activating the print pattern on the pattern transfer film. With the
aforementioned activator, the chlorinated polyolefin of the activator added to
the ink when the print pattern is activated imparts good adhesion of the ink
to the objective body of polyolefin resin and therefore the print pattern is
adhered to the objective body in a good condition.
Conventionally, in order to impart chemical resistance and weather
resistance to the print pattern transferred to the objective body or provide
good appearance thereto, a protection coat layer or top coat layer is applied to
the objective body so as to cover the print pattern. In the prior art, the
protection coat layer is formed by coating an urethane or acrylic coat material
(see paragraph number 30 of JP9-1996). However, even though the print
pattern has high adhesion imparted to the objective body of polyolefin resin
by activating the print pattern by using the aforementioned method, the
urethane or acrylic protection coat layer has poor adhesion to the objective
body and the print pattern and therefore the predetermined adhesion
strength of the print pattern cannot be maintained even immediately after it
is coated and dried. Also, since the poor adhesion strength is further lowered
as time elapses, the protection coat layer tends to rise so as to be removed out
of the surface of the objective body, which cannot protect the print pattern
and deteriorates the appearance of the objective body.
Particularly, in case that the objective body such as inner or outer
panel of a car is used in an outdoor atmosphere having a severe condition of
humidity or temperature, both of the high adhesion of the print pattern to the
objective body and the high adhesion of the protection coat layer to the
objective body and the print pattern are required, but the prior protection
coat layer cannot meet such requirements.
Accordingly, a principal object of the invention is to provide a method
of transferring a print pattern to an objective body under a liquid pressure in
which a protection coat layer as well as a print pattern (a transferred
pattern) activated by an activator including a binder resin of chlorinated
polyolefin and transferred onto the objective body can be solidly adhered to
the objective body whereby the print pattern can be effectively protected for a "
longer time while it has an appearance arranged.
It is another object of the invention is to provide a liquid pressure
pattern transfer article in which a protection coat layer as well as a print
pattern (a transferred pattern) activated by an activator including a binder
resin of chlorinated polyolefin and transferred onto the objective body can be
solidly adhered to the objective body whereby the print pattern can be
effectively protected for a longer time while it has an appearance arranged.
It is further object of the invention to provide a coating material used
for transferring a print pattern onto an objective body in which a protection
coat layer as well as a print pattern (a transferred pattern) activated by an
activator including a binder resin of chlorinated polyolefin and transferred
onto the objective body can be solidly adhered to the objective body whereby
the print pattern can be effectively protected for a longer time while it has an
appearance arranged.
DISCLOSURE OF THE INVENTION
A fundamental method of the invention is a method of transferring a
print pattern on an objective body under a liquid pressure comprising the
steps of floating on a liquid surface a pattern transfer film having a print
pattern activated by an activator, transferring the print pattern on the
pattern transfer film onto the objective body under a liquid pressure produced
by immersing the objective body below the liquid surface into the liquid while
the objective body is faced to the pattern transfer film and then forming a
protection coat layer on the objective body having the print pattern
transferred, characterized by the activator to activate the print pattern
containing a binder resin formed of a. [chlorinated polyolefin having a
hydrophilic component imparted thereto and the protection coat layer being
formed on the objective body with an intermediate coat layer placed between
the objective body and the protection coat layer and having adhesion to all of
the objective body, the print pattern thereon and the protection coat layer.
A concrete method of the invention is a method of transferring a print
pattern on an objective body under a liquid pressure comprising the steps of
floating on a liquid surface a pattern transfer film having a print pattern
activated by an activator, transferring the print pattern on the pattern
transfer film onto the objective body under a liquid pressure produced by
immersing the objective body below the liquid surface into the liquid while
the objective body is faced to the pattern transfer film and then forming a
protection coat layer on the objective body having the print pattern
transferred, characterized by the activator to activate the print pattern
containing a binder resin formed of a graft copolymer comprising an alkoxy •
(poly) aliylene-glycol • mono (metha) acrylate of 5 through 50 weight %, a
chlorinated polypropylene resin of 5 through 50 weight % and a polymerized
unsaturation group containing vinyl compound of 90 weight % or less than
and the protection coat layer being formed on the objective body with an
intermediate coat layer placed between the objective body and the protection
coat layer and having adhesion to all of the objective body, the print pattern
thereon and the protection coat layer.
In the liquid pressure pattern transfer method of the invention, the
intermediate coat layer may preferably contain a binder resin of a graft
copolymer comprising an unsaturation group containing vinyl monomer of 5
through 95 weight % having a homopolymer glass transition temperature of
50°C or more thanN an unsaturation group containing vinyl monomer of 50
weight % or less than having a homopolymer glass transition temperature of
less than 50 °C and a chlorinated polypropylene resin of 1 through 50
weight %.
In the liquid pressure pattern transfer method of the invention, the
protection coat layer may preferably include at least one of an acrylic polyol
resin having a hydroxyl value of 10 - 200 mgKOH/g and a polyester polyol
resin having a hydroxyl value of 10 - 400 mgKOH/g.
In the liquid pressure pattern transfer method of the invention, with
the intermediate coat layer including the binder resin of the graft copolymer
comprising the unsaturation group containing vinyl monomer of 5 through 95
weight % having the homopolymer glass transition temperature of 50°C or
more than^ the unsaturation group containing vinyl monomer of 50 or less
weight % having the homopolymer glass transition temperature of less than
50°C and the chlorinated polypropylene resin of 1 through 50 weight % and
with the protection coat layer including at least one of the acrylic polyol resin
having the hydroxyl value of 10 - 200 mgKOH/g and the polyester polyol
resin having the hydroxyl value of 10 - 400 mgKOH/g, these coat layers
mutually act and therefore the protection coat layer of good quality can be
formed.
The invention also provides a liquid pressure pattern transferred
article characterized by being produced by the liquid pressure pattern
transfer method according to either of the first and second aspects
The invention further provides a liquid pressure pattern transferring
coating material used for the liquid pressure pattern transfer method,
characterized by including a coating component to form an intermediate coat
layer containing a binder resin of a graft copolymer comprising an
unsaturation group containing vinyl monomer of 5 through 95 weight %
having a homopolymer glass transition temperature of 50°C or more thanN an
unsaturation group containing vinyl monomer of 50 weight % or less than
having a homopolymer glass transition temperature of less than 50°C and a
chlorinated polypropylene resin of 1 through 50 weight %.
The liquid pressure pattern transferring coating material of the
invention is characterized by including a coating component to form a
protection coat layer including at least one of an acrylic polyol resin having a
hydroxyl value of 10 - 200 mgKOH/g and a polyester polyol resin having a
hydroxyl value of 10 - 400 mgKOH/g.
In this manner, with the protection coat layer covering the print
pattern transferred onto the objective body after activated by the activator
containing the binder resin formed of the chlorinated polyolefin having the
hydrophilic component added thereto and being formed on the objective body
with the intermediate coat layer placed between the objective body and the
protection coat layer and having adhesion to all of the objective body, the
print pattern thereon and the protection coat layer, the protection coat layer
and the print (transfer) pattern will be never removed out of the objective
body of polyolefin and therefore the protection coat layer can maintain the
chemical resistance, the weather resistance and the good appearance
imparted to the objective body for a longer time.
Especially, with the print pattern on the objective body activated by
the activator containing the binder resin formed of the graft copolymer
comprising the alkoxy • (poly) alkylene-glycol • mono (metha) acrylate of 5
through 50 weight %, the chlorinated polypropylene resin of 5 through 50
weight % and the polymerized unsaturation group containing vinyl compound
of 90 weight % or less than, the chlorinated polypropylene resin in the
activator enables the print pattern to be transferred onto the objective body
while having higher adhesion thereto without any disarrangement of the
pattern.
In addition thereto, with the intermediate coat layer containing the
binder resin of the graft copolymer comprising the unsaturation group
containing vinyl monomer of 5 through 95 weight % having the homopolymer
glass transition temperature of 50°C or more than the unsaturation group
containing vinyl monomer of 50 weight % or less than having the
homopolymer glass transition temperature of less than 50 °C and the
chlorinated polypropylene resin of 1 through 50 weight % and with the
protection coat layer including at least one of the acrylic polyol resin having
the hydroxyl value of 10 — 200 mgKOH/g and the polyester polyol resin
having the hydroxyl value of 10 - 400 mgKOH/g, the protection coat layer
having the chemical resistance, the weather resistance and the good
appearance of the objective body can be adhered with the higher adhesion to
both of the print pattern transferred onto the objective body after activated by
the activator containing the binder resin formed of the chlorinated polyolefin
having the hydrophilic component added thereto and the objective body of
polyolefin.
More particularly, the chlorinated polypropylene resin in the
intermediate coat layer causes the intermediate coat layer to have the higher
adhesion to both of the print patter treated by the activator including the
chlorinated polypropylene resin and the objective body having the print
pattern transferred thereon and the protection coat layer adjusts aggregation
force or cohesion force of such a degree as never damages both of the print
(transfer) pattern transferred to the objective body after treated by the
activator including the chlorinated polypropylene resin having not so much
aggregation force and the intermediate coat layer including the chlorinated
polyolefin resin whereby the chemical resistance, the weather resistance and
the good appearance of the protection coat layer can be arranged.
Why the graft copolymer as the binder resin among the coating
components of the intermediate coat layer comprises the unsaturation group
containing vinyl monomers of different glass transition temperatures Tg is
used is to maintain the appropriate aggregation force (strength) and the
appropriate tackiness (adhesion) in good balance.
More particularly, the aggregation force imparts the strength to the
coat layer while the tackiness imparts the adhesion (deformation follow)
thereto. As the binder resin of the intermediate coat layer having the stronger
aggregation force in order to improve the strength thereof, the coat layer is
shrunk because of the strength leading to the hardness of the chemical
bondage. This causes a crack of the coat layer and an increase in stress of the
upper and lower coat layers. Although the tackiness improves the adhesion
and the flowability of the coat layer, the strength and the tackiness of the
intermediate coat layer should be balanced relative to the print pattern
adhered to the objective body after activated by the activator including the
chlorinated polyolefin and placed under the intermediate coat layer and also
relative to the protection coat layer placed on the intermediate coat layer. The
strength and the tackiness of the binder resin of the intermediate coat layer
can be balanced by using ones having the glass transition temperature
different from each other.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Fig. 1A illustrates the step of activating a print pattern on a pattern
transfer film by coating an activator on the print pattern; Fig. IB illustrates
the step of feeding to a transfer area the pattern transfer film having the
print pattern activated; Fig. 1C illustrates the step of immersing an objective
body into a liquid together with the pattern transfer film and transferring the
print pattern onto the objective body; Fig. ID illustrates the condition of the
objective body having the print pattern transferred from the pattern transfer
film in this manner; Fig. 2A illustrates the step of coating an intermediate
coat layer on the objective body of Fig. ID; Fig. 2B illustrates the step of
coating a protection coat layer on the intermediate coat layer coated on the
objective body; and Fig. 3 is an enlarged cross sectional view of a portion of the
liquid pressure pattern transfer article produced by the steps of Figs. 1 and 2.
BEST MODE FOR EMBODYING THE INVENTION
A mode of embodiment of the invention will be described hereinafter.
Fig. 1 illustrates in a stepped manner the steps of embodying a liquid
pressure pattern transfer method to which the invention is applied. As shown
in Fig. 1A, a pattern transfer film 14 having a predetermined print pattern
12 printed on a base film 10 may be fed from a not
shown film supply source to activator application means 16 such as an
activator coating bath 16R, for instance. The activator coating bath 16R
serves to coat an activator 20 onto the print pattern 12 on the pattern
transfer film 14 being held between a coating roll 22 and a pressure roll 24 so
as to attach the activator 20 to the print pattern within a bath body 18 so
that the print pattern 12 is activated by the activator 20. For the activator 20
may be used one including a binder resin formed of a chlorinated polyolefin
having a hydrophobic component imparted thereto as described later. As the
print pattern 12 is activated, the ink of the print pattern 12 is on the state of
being dissolved and being capable of being transferred.
The pattern transfer film 14 having the print pattern 12 activated in
this manner is fed through a guide roll 26 shown in Fig. 1A to liquid pressure
transfer means 30 shown in Fig. IB. The liquid pressure transfer means 30
comprises a liquid pressure transfer bath 32 within which the activated
pattern transfer film 14 is floated with the print pattern 12 upwardly faced.
The pattern transfer film 14 is supplied at predetermined velocity to a
transfer area 36 to which a transfer objective body 34 is downwardly supplied
from an upper side. A liquid 38 that is typically water is filled within the
transfer bath 32 and is sequentially circulated through a not shown liquid
circulation apparatus including a purifier, a pump and so on. The pattern
transfer film 14 is floated on the surface 38S of the liquid 38 and advanced
flowing on the stream of the liquid 38 or by an appropriate transport means.
The transfer objective body 34 is immersed into the liquid 38 in the
transfer area 36 with the transfer face 34F thereof being faced to the liquid
surface 38S as shown in Fig.lC. Since the pattern transfer film 14 is subject
to the liquid pressure generated by the immersion of the transfer objective
body 34 into the liquid, the pattern transfer film 14 is attached to the surface
of the transfer objective body 34 by the liquid pressure and therefore the
print pattern 12 on the pattern transfer film 14 is transferred onto the
transfer face 34F of the transfer objective body 34 (see Fig. ID). Since the
base film of the pattern transfer film 14 is formed of liquid-soluble or liquid
swelling materials, it is dissolved or swollen by the liquid 38 within the liquid
pressure transfer bath 32 without being attached onto the objective body 34.
If the base film would possibly remain attached onto the objective body 34, it
would be removed out by appropriate removal means at the later step.
In the method of the invention, the objective body 34 having the print
pattern (referred to as the transferred pattern 12 hereinafter) transferred in
this manner passes through first coat material application (or spray) means
40 as shown in Fig. 2 to have a transparent intermediate coat layer 42 coated
and then passes through second coat material application (or spray) means
44 to have a transparent or semitransparent protection coat layer 46 coated
on the intermediate coat layer 42. The components of these coat layers 42 and
46 will be described in detail later.
The Fujikura Kasei Co., Ltd., one of the applicants, has proposed a
method for activating the print pattern 12 for improving adhesion to the
transfer objective body 34 formed of a product such as a polyolefin resin
mould having poor adhesion of the print pattern from the pattern transfer
film 14 and a binder resin for an activator used for the method (see
JP9-19996 and JP9-76700). In this method, there is used the activator
including a binder resin of a graft copolymer comprising an alkoxy •
(poly)alkylene-glycol • mono (metha) acrylate of 5 through 50 weight %, a
chlorinated polypropylene resin of 5 through 50 weight % and a polymerized
unsaturation group containing vinyl compound of 0 through 90 weight % for
activating the print pattern 12.
The activator may be formed by adding an inorganic fiber and a
plasticizer to the aforementioned binder resin as required and dissolving
them in an appropriate organic solvent such as a toluene, xylene or the like at
an appropriate weight ratio. Since the activator includes the chlorinated
polypropylene, the print pattern can be attached onto the polyolefin resin
product in a good manner without any surface treatment made for improving
the adhesion of the print pattern to the product. Also, since the chlorinated
polypropylene has the hydrophilic property imparted by being grafted with
the hydrophihc alkoxy • (poly)alkylene-glycol'mono (metha) acrylate, the print
pattern 12 treated by such an activator can be uniformly and sufficiently
extended on the liquid (water) surface 38S within the liquid pressure
(hydraulic pressure) transfer bath 32 even though the organic solvent of the
activator is hydrophobic. Thus, it will be noted that the print pattern 12 can
be attached onto the polyolefin resin product (objective body 34) in a
satisfactory manner without any disarrangement of the pattern.
In the method of the invention, as aforementioned, the transparent
intermediate coat layer 42 is coated on the objective body 34 having the
transferred pattern 12T and thereafter the transparent or semitransparent
protection coat layer 44 is coated on the intermediate coat layer 42. The
method of the invention is characterized in that the intermediate coat layer
42 contains a binder resin of a graft copolymer comprising an unsaturation
group containing vinyl monomer of 5 through 95 weight % having a
homopolymer glass transition temperature of 50 CC or more than^ an
unsaturation group containing vinyl monomer of 50 weight % or less than
having a homopolymer glass transition temperature of less than 50°C and a
chlorinated polypropylene resin of 1 through 50 weight %while the protection
coat layer 44 includes at least one of an acrylic polyol resin having a hydroxyl
value of 10 - 200 mgKOH/g and a polyester polyol resin having a hydroxyl
value of 10 - 400 mgKOH/g.
The coating material used for the protection coat layer and including
at least one of the acrylic polyol resin having the hydroxyl value of 10 — 200
mgKOH/g and the polyester polyol resin having the hydroxyl value of 10 -
400 mgKOH/g serves to maintain for a longer time the chemical resistance,
the weather resistance, the physical strength and the luster which are
required for the protection coat layer and which can be obtained by the bridge
structure of the coating material caused by its combination with a curing
agent of isocyanate or the like and to improve adhesion to the objective body.
The hydroxyl value of the acrylic polyol resin or the polyester polyol resin
which is the coating component for the protection coat layer should be set so
as to provide the predetermined physical strength and the predetermined
adhesion in a balanced manner.
More particularly, if the hydroxyl value of the acrylic polyol resin is
less than 10 mgKOH/g or if the hydroxyl value of the polyester polyol resin is
less than 10 mgKOH/g, the bridge density of them gets smaller, which causes
the physical strength of the protection coat layer to be reduced. If the
hydroxyl value of the acrylic polyol resin exceeds 200 mgKOH/g or if the
hydroxyl value of the polyester polyol resin exceeds 400 mgKOH/g, the
aggregation force gets larger, which causes the adhesion force of the
protection coat layer to be reduced. Thus, the hydroxyl value of the acrylic
polyol resin is preferably of 10 through 200 mgKOH/g or the hydroxyl value of
the polyester polyol resin is preferably of 10 through 400 mgKOH/g. These
resins can be used for the protection coat layer while being dissolved in an
appropriate solvent such as a toluene, xylene or the like.
As examples of the acrylic polyol resin having the hydroxyl value of 10
through 200 mgKOH/g for the protection coat layer may be listed ones
manufactured by Toray Industries, Inc., Japan and commercially available
under the trade names of COATAX LH-633, COATAX
LH-404, COATAX LH-470, COATAX LG-615 and COATAX LH-455 and ones
manufactured by Dainippon Ink & Chemicals, Inc, Japan and commercially
available under the trade names of ACRYDIC A-801, ACRYDIC A-812 and A
ACRYDICA-851.
As examples of the polyester polyol resin having the hydroxyl value of
10 through 400 mgKOH/g for the protection coat layer may be listed ones
manufactured by Dainippon Ink & Chemicals, Inc, Japan and commercially
available under the trade names of BURNOCK D-400-70, BURNOCK
D-293-70, BURNOCK D-150-70 and BURNOCK J-517.
On the other hand, the intermediate coat layer 42 has the function of
having the improved adhesion to both of the transfer objective body having
the transferred pattern 12T and the protection coat layer 44 so that the
protection coat layer 44 is not directly adhered to the transfer objective body
34. The intermediate coat layer 42 containing the binder resin of the graft
copolymer comprising the unsaturation group containing vinyl monomer of 5
through 95 weight % having the homopolymer glass transition temperature
of 50°C or more than^ the unsaturation group containing vinyl monomer of
less than 50 weight % having the homopolymer glass transition temperature
of 50°C or less than and the chlorinated polypropylene resin of 1 through 50
weight % is suitable for the intermediate coat layer having such a function. In
particular, in case that the transfer objective body is formed of the polyolefin

resin and also in case that the transferred pattern 12T thereon is formed
after activated by the activator including the binder resin of the chlorinated
polyolefin having the hydrophilic component added thereto and transferring
it on the transfer objective body, the aforementioned intermediate coat layer
can accomplish the more excellent effect. The intermediate coat layer 42 can
be obtained by coating the material for the intermediate coat layer formed by
dissolving the aforementioned binder resin in an organic solvent such as a
toluene, xylene or the like.
Since the unsaturation group containing vinyl monomers having the
glass transition temperature different from each other are used as the graft
copolymer of the binder resin in the coating components of the intermediate
coat layer 42, the appropriate aggregation force (strength) and the
appropriate tackiness force (adhesion) of the binder resin can be maintained
in a balanced manner.
More particularly, if the unsaturation group containing monomer has
the glass transition temperature of 50°C or more than, the binder resin will
have higher aggregation force and therefore higher strength, but it will have
lower tackiness and therefore lower adhesion. If the unsaturation group
containing vinyl monomer has the glass transition temperature of less than
50 °C, the binder resin will have higher tackiness and therefore higher
adhesion, but it will have lower aggregation force and therefore lower
strength. With the binder resin of the intermediate coat layer 42 formed of
the graft copolymer of both of the unsaturation group containing vinyl
monomer having the glass transition temperature of 50°C or more than and
the unsaturation group containing vinyl monomer having the glass transition
temperature of less than 50°C together with chlorinated polypropylene resin,
the appropriate and balanced strength and adhesion can be imparted to the
intermediate coat layer.
If the unsaturation group containing vinyl monomer having the glass
transition temperature of 50°C or more than is of less than 5 weight %, then
the aggregation force of the binder resin cannot be obtained and its strength
is lowered and if it exceeds 95 weight %, then the adhesion is lowered. If the
unsaturation group containing vinyl monomer having the glass transition
temperature of less than 50°C exceeds 50 weight %, then the aggregation
force of the binder resin is lowered and therefore its strength is lowered. If
the content of the chlorinated polypropylene resin is less than 1 weight %,
then the adhesion is lowered and if it exceeds 50 weight %, then its strength
is lowered.
As examples of the unsaturation group containing vinyl monomer
having the glass transition temperature of 50°C or more than used for the
homopolymer of the intermediate coat layer are listed styrene, a -methyl
styrene, vinyl toluene, methacrylic acid, methacrylic methyl, methacrylic
ethyl, methacrylic tert-butyl, methacrylic cyclohexyl, isobornyl (metha)
acrylate and isopentanyl methacrylate.
As examples of the unsaturation group containing vinyl monomer
having the glass transition temperature of less than 50°C used for the
homopolymer of the intermediate coat layer are listed methyl acrylate, ethyl
acrylate, butyl acrylate, (metha) aery he acid 2-ethylhexyl, methacrylic acid
n-butyl, methacrylic iso-butyl, lauryl (metha) acrylate and phenoxyethyl
acrylate.
As examples of the chlorinated polypropylene resin to get the
copolymer together with these unsaturation group containing vinyl
monomers may be listed SUPERCHLON 892L,SUPERCHL^ 814^ and
SUPERCHLON HP-213 and so on manufactured by Nippon Paper Industries
Co.,Ltd.
In the mode of embodiment aforementioned, the intermediate coat
layer 42 and the protection coat layer 44 are described and illustrated to be
formed by coating the coating materials by the spray coating process, but
they may be formed by any other suitable processes such as a gravure coating
process, roll coating process, a curtain flow coating process or the likes.
The concrete compositions of the intermediate coat layer 42 and the
protection coat layer 44 used by the method of the invention will be described
hereinafter.
Describing an example of a method of producing the binder resin for
the intermediate coat layer, respective components of the composition (A)
indicated in Table 1 were prepared in a four-port flask of 1 liter provided with
an agitator, a cooler and a monomer dropper. The components were heated
until it reaches an inner temperature of 90°C while the agitator is operated
and held at 90 °C for 20 minutes. Thereafter, the monomers of the
compositions (B) were dropped into the components in an hour and half and
after they were dropped, the components of the composition (C) were added
thereto. Then, the components (A) through (C) were held at 90°C for three
hours until they were polymerized to produce the copolymer resin solution.
Thereafter, the copolymer resin solution was diluted in a toluene to produce
the coating materials for the intermediate coat layer. In Table I, the content
of the components are indicated by weight parts.
TABLE I
(*l) Chlorinated polypropylene resin (the trade name of SUPERCHLON
892L, chlorination rate of 20%, 20% toluene solution) manufactured by
Nippon Paper Industries Co., Ltd.
(*2) Chlorinated polypropylene resin (the trade name of SUPERCHLON
814H, chlorination rate of 41%, 60% toluene solution) manufactured by
Nippon Paper Industries Co., Ltd.
(*3) t-butyloxy-2-ethylhexanoate
(*4) methyl methacrylate
(*5) isobornyl acrylate
(*6) iso-butyl methacrylate
(*7) 2-ethylhexyl acrylate
(*8) azo-bis-isobutylonitrile
As aforementioned, the coating material for the protection coat layer
may be prepared by containing the acrylic polyol resin having the hydroxyl
value of 10 through 200 mgKOH/g manufactured by Toray Industries, Inc.,
Japan and commercially available under the trade names of COATAX LH-633,
COATAX LH-635, COATJ^J^^^^m^J^M^lQ^Q^^J^:6},5 and
COATAX LH-455 or manufactured by Dainippon Ink & Chemicals, Inc,
Japan and commercially available under the trade names of ACRYDIC A-801,
ACRYDIC A-812 and ACRYDIC A-851 or the polyester polyol resin having the
hydroxyl value of 10 through 400 mgKOH/g manufactured by Dainippon Ink
& Chemicals, Inc, Japan and commercially available under the trade names
of BURNOCK D-400-70, BURNOCK D-293/70, BURNOCJi D-150-70 and
BURNOCK J-517. For instance, the acrylic polyol resin having the hydroxyl
value of 70 mgKOH/g commercially available under the trade name PG9940
manufactured by the Fuzikura Kasei Co., Ltd and the polyester polyol resin
having the hydroxyl value of 150 mgKOH/g commercially available under the
trade name PG9941 manufactured by the Fuzikura Kasei Co., Ltd may be
used. The coating materials can be formed by combining the main agent of
PG940A;j/of,30 weight parts, the curing agent of PG9940B-N2 of 5 weight
parts and the thinner of PG9940C-11 of 12 weight parts or by combining the
main agent of PG941A-N of 100 weight parts, the curing agent of PG9941B of
25 weight parts and the thinner of PG994lCSjJl of 20 weight parts.
Some examples of the invention will be described with respect to the
transfer objective body, the activator for activating the print pattern on the
transfer film and the components of the intermediate and protection coat
layers which were used for the liquid pressure transfer method of the
invention.
(Example l)
In order to activate the print pattern on the transfer film as shown in
Fig. 1A, the activator was used which was formed of the binder resin of the
trade name PG2799L of 30 weight parts manufactured by Fujikura Kasei Co.,
Ltd., the DBP (dibutyl phthalate) of 15 weight parts, butyl carbitol acetate of
45 weight parts and the xylene of 10 weight parts. After the print pattern was
activated by coating the activator on the print pattern on the transfer film,
the print pattern was transferred onto the transfer objective body of the
polypropylene resin product by the method as shown in Figs. IB through ID.
After the transfer objective body was dried, the intermediate and protection
coat layers were formed by the spray coating process shown in Figs. 2A and
2B.
The intermediate coat layer was formed by coating the coating
material obtained by further diluting the copolymer resin solution VI of 10
weight parts indicated in the Table I with the toluene of 90 weight parts so
that the dried layer thickness was 5-15 /x m. The protection coat layer was
formed by coating the material of the trade name P^G994fi manufactured by
Fujikura Kasei Co., Ltd. and containing the acrylic polyol resin having the
hydroxyl value of 70 mgKOH/g so that the dried layer thickness was 10 - 40
ii m. The activator was applied using a printing body having an application
amount of 14 - 15g/m2.
(EXAMPLE 2)
The liquid pressure pattern transfer was made and the coat layers
were formed in the manner identical to the Example 1 except for using the
copolymer resin solution V2 of the Table I as the binder resin of the
intermediate coat layer.
(EXAMPLE 3)
The liquid pressure pattern transfer was made and the coat layers
were formed in the manner identical to the Example 1 except for using the
copolymer resin solution V3 of the Table I as the binder resin of the
intermediate coat layer.
(COMPARISON 1)
The protection coat layer was formed without any intermediate coat
layer directly on the polyolefin objective body having the transfer pattern
transferred from the transfer film having the print pattern activated by the
conventional activator containing no chlorinated polypropylene and the
conventional activator was used which contained no binder resin of
chlorinated polyolefin having the hydrophilic component imparted thereto
and the protection coat layer was formed by coating the coating materials of
the trade name PG9940 manufactured by Fujikura Kasei Co., Ltd and
identical to those used in EXAMPLE 1.
(COMPARISON 2)
After the generally used coating materials for the polypropylene of the
trade name of UNISTOLE P401 manufactured by Mitsui Chemical Co., Ltd.
was coated on the polyolefin objective body having the transferred pattern
obtained by transferring the print pattern from the transfer film after it was
activated by the same activator as used in COMPARISON 1, the protection
coat layer was formed by coating the coating material of the trade name
PG9940 manufactured by Fujikura Kasei Co., Ltd and identical to those used
in EXAMPLE 1.
(COMPARISON 3)
After the same intermediate coat layer as used in EXAMPLE 1 was
formed on the polyolefin objective body having the transferred pattern
obtained by transferring the print pattern from the transfer film after it was
activated by the same activator as used in EXAMPLE 1, the protection coat
layer was formed by coating the coating material of the trade name PG9940 *
manufactured by Fujikura Kasei Co., Ltd and identical to those used in
EXAMPLE 1.
(COMPAEISON 4)
After the conventional coating material for polypropylene of the trade
t1 .
name of UNISTOLE P401 manufactured by Mitsui Chemical Co., Ltd. was
coated on the polyolefin objective body having the transferred pattern
obtained by transferring the print pattern from the transfer film after it was
activated by the same activator as used in EXAMPLE 1 to form the
intermediate coat layer, the protection coat layer was formed by coating the
Pi f*i
coating material of the trade name PG9940 manufactured by Fujikura Kasei
Co., Ltd and identical to those used in EXAMPLE 1.
(COMPARISON 5)
The protection coat layer was formed by coating the coating material
H
of the trade name PG9940 manufactured by Fujikura Kasei Co., Ltd and
identical to those used in EXAMPLE 1, on the polyolefin objective body
having the transferred pattern obtained by transferring the print pattern
from the transfer film after it was activated by the same activator as used in
EXAMPLE 1 without any intermediate coat layer.
(COMPARISON 6)
The liquid pressure pattern transfer was made and the coat layer
were formed in the manner identical to COMPARISON 5 except for using the
coating material prepared by adding the copolymer resin VI of 10 weight
parts of TABLE I to the component of the trade name PG9940 of 150 weight
parts manufactured by Fujikura Kasei Co., Ltd.
The compositions of the activators and the coating materials in
EXAMPLES 1 through 3 and COMPARISONS 1 through 6 are as in TABLE
II.
TABLE II
"Af": Activator comprising the binder resin commercially available
under the trade name of PG2799L of 30 weight parts manufactured by
Fujikura Kasei Co., Ltd., DBP (dibutyl phthalate) of 15 weight parts, butyl
carbitol acetate of 45 weight parts and the xylene of 10 weight parts.
"Ap": Conventional activator (containing no binder resin formed of
chlorinated polyolefin having the hydrophilic component imparted thereto)
"PCvl": Coating material obtained by dissolving the binder resin VI
of 10 weight parts of Table I in the toluene of 90 weight parts.
"PCv2": Coating material obtained by dissolving the binder resin V2
of 10 weight parts of Table I in the toluene of 90 weight parts.
"PCv3": Coating materials obtained by dissolving the binder resin V3
of 10 weight parts of Table I in the toluene of 90 weight parts.
"PCp": Coating material of the trade name of UNISTOLE P401
manufactured by Mitsui Chemicals Co., Ltd. (Generally used polypropylene
coat material)
"TCf: Coating materials of the trade name PG9940 manufactured by
Fujikura Kasei Co., Ltd.
The results obtained by estimating the appearance, the initial
adhesion state and the secondary adhesion state of the objective bodies (the
liquid pressure transfer articles) produced by Examples 1 through 3 and
Comparisons 1 through 6 are as shown in Table III. In the estimation, the
appearance was estimated using the symbols of O indicating the value of 90
or more than obtained by determining the appearance of the articles relative
to the 60° luster given by the measurement by the gloss meter, A indicating
the value of 80 to 90 and X indicating the value of less 80. The initial
adhesion state is one obtained by measuring the adhesion condition
immediately after the protection coat layer was formed while the secondary
adhesion is one obtained by measuring the adhesion condition after the
waterproof test of the formed protection coat layer for 24 hours at 40°C or the
moisture resistance test of the formed protection coat layer under the
humidity of 95 % for 500 hours at 50°C was made. The adhesion state was
measured by the adhesion test (gap of 1mm and square number of 100)
according to the "8.5.1 cross-cut adhesion tape method" of JIS (Japan
Industrial Standard) -K5400. The adhesion states were estimated using the
symbols of O indicating that no evidence of removal of the protection coat
layer was found, A indicating that removal of 1/100 or more than and less
than 10/100 of the protection coat layer was found and X indicating that
removal of 10/100 or more than of the protection coat layer was found.
TABLE III
As apparent from Table III, in Examples 1 through 3 in which the
intermediate coat layer contained the binder resin of the graft copolymer
comprising the unsaturation group containing vinyl monomer of 5 through 95
having the homopolymer glass transition temperature of 50°C or more thanN
the unsaturation group containing vinyl monomer of 50 weight % or less than
having the homopolymer glass transition temperature of less than 50°C and
the chlorinated polypropylene resin of 1 through 50 weight % and the
protection coat layer included at least one of the acrylic polyol resin having
the hydroxyl value of 10 - 200 mgKOH/g and the polyester polyol resin
having the hydroxyl value of 10 - 400 mgKOH/g, all of the appearance, the
initial adhesion state and the secondary adhesion state of the protection coat
layer were good and therefore it will be noted that good adhesion state of the
improved protection coat layer and the improved printed or transferred
pattern on the polyolefin objective body could be maintained for a longer time.
On the other hand, in Comparisons 1 and 2 in which the prior art
activator containing no chlorinated polypropylene was used, in Comparisons
5 and 6 in which the intermediate coat layer was not applied or in
Comparison 4 in which the intermediate coat layer contained no graft
copolymer comprising the two unsaturation group containing vinyl monomer
having the glass transition temperature different from each other and the
chlorinated polyolefin resin, even though, in all the Comparisons, the
protection coat layer containing the acrylic polyol resin having the hydroxyl
value of 10 - 200 mgKOH/g or the polyester polyol resin having the hydroxyl
value of 10 - 400 mgKOH/g was used, it will be noted that the appearance
(Comparison 6), the initial adhesion state (Comparisons 1 through 6) and the
secondary adhesion state (Comparisons 1 through 6) were poor. Especially, it
will be noted that the method other than that of the invention cannot be
suitable for the objective bodies such as inner or outer panels for cars used
outdoors under the severe atmospheres of temperature, humidity and so on
and required to have the high adhesion state of the protection coat layer.
According to the invention, as aforementioned, since the protection
coat layer covering the print pattern transferred onto the objective body after
activated by the activator containing the binder resin of the chlorinated
polyolefin having the hydrophilic component added thereto is formed on the
objective body with the intermediate coat layer placed between the objective
body and the protection coat layer and having the adhesion to all of the
objective body, the print pattern thereon and the protection coat layer, the
printed or transferred pattern, the intermediate coat layer and the protection
coat layer are never removed out of the objective body of polyolefin and
therefore the protection coat layer can have the good appearance arranged
and can maintain the chemical resistance and the weather resistance for a
longer time.
Especially, with the print pattern on the objective body activated by
the activator containing the binder resin formed of the graft copolymer
comprising an alkoxy • (poly) alkylene-glycol • mono (metha) acrylate of 5
through 50 weight %, the chlorinated polypropylene resin of 5 through 50
weight % and the polymerized unsaturation group containing vinyl compound
of 90 weight % or less than, the chlorinated polypropylene resin in the
activator enables the print pattern to be transferred onto the objective body of
polyolefin resin product while having the improved adhesion thereto without
any disarrangement of the pattern, and in. addition thereto, with the
intermediate coat layer including the binder resin of the graft copolymer
comprising the unsaturation group containing vinyl monomer of 5 through 95
weight % having the homopolymer glass transition temperature of 50CC or
more thanN the unsaturation group containing vinyl monomer of 50 weight %
or less than having the homopolymer glass transition temperature of less
than 50°C and the chlorinated polypropylene resin of 1 through 50 weight %
and with the protection coat layer including at least one of the acrylic polyol
resin having the hydroxyl value of 10 - 200 mgKOH/g and the polyester
polyol resin having the hydroxyl value of 10 - 400 mgKOH/g, the protection
coat layer can be adhered with the higher adhesion to both of the print
pattern transferred onto the objective body while activated by the activator
containing the binder resin of the chlorinated polyolefin having the
hydrophihc component added thereto and the polyolefin objective body and
therefore the protection coat layer can have the good appearance arranged
and can maintain the chemical resistance and the weather resistance for a
longer time.
The liquid pressure pattern transferred article having the intermediate
coat layer including the binder resin of the graft copolymer which comprises
the unsaturation group containing vinyl monomer of 5 through 95 weight %
having the homopolymer glass transition temperature of 50°C or more than-,
the unsaturation group containing vinyl monomer of 50 weight % or less than
having the homopolymer glass transition temperature of less than 50°C and
the chlorinated polypropylene resin of 1 through 50 weight % and the
protection coat layer including at least one of the acrylic polyol resin having
the hydroxyl value of 10 - 200 mgKOH/g and the polyester polyol resin
having the hydroxyl value of 10 - 400 mgKOH/g can have the good
appearance arranged by the protection coat layer and can have the chemical
resistance and the weather resistance maintained for a longer time.
The coating material for the intermediate coat layer including the
binder resin of the graft copolymer which comprises the unsaturation group
containing vinyl monomer of 5 through 95 weight % having the homopolymer
glass transition temperature of 50°C or more than., the unsaturation group
containing vinyl monomer of 50 weight % or less than having the
homopolymer glass transition temperature of less than 50 °C and the
chlorinated polypropylene resin of 1 through 50 weight % and the coating
material for the protection coat layer including at least one of the acrylic
polyol resin having the hydroxyl value of 10 - 200 mgKOH/g and the
polyester polyol resin having the hydroxyl value of 10 — 400 mgKOH/g can
serve to solidly adhere the transferred pattern and the coating materials
themselves to the objective body and therefore they are suitable for producing
the liquid pressure pattern transfer article having the good appearance
arranged by the protection coat layer and can have the transferred pattern
maintained for a longer time.
UTILIZABILITY OF INDUSTRIES
As aforementioned, the method according to the invention can
suitably maintain the print pattern transferred on the surface of the objective
body such as the car panel, which will be used under severe atmosphere of
temperature, humidity and so on.
WE CLAIM:
such as herein described,
1. ' . " A method of transferring a print pattern onto an objective body, /
under a liquid pressure comprising the steps of floating on a Hcmid surface a pattern
such as herein described, .
transfer film having a print pattern activated by an activator,/transferring said print
pattern on said pattern transfer film onto said objective body under said liquid pressure
produced by immersing said objective body below said liquid surface into the liquid
while said objective body is faced to said pattern transfer film and then forming a
protection coat layer on said objective body having said print pattern transferred,
characterized by said activator containing a binder resin formed of a chlorinated
such as herein described,
polyolefini having a hydrophilic component imparted thereto. s_aid protection coat layer
being formed on said objective body with an intermediate coat layer placed between
said objective body and said protection coat layer and having adhesion to all of said
objective body, said print pattern thereon and said protection coat layer and said
intermediate coat layer containing a binder resin of a graft copplvrner comprising an
. unsaturation group, containing
temperature of 50 " or more than ..an unsaturation_group:containing vinyl monomer
haying a hpmppplymer glass .transition ter^
polypropylene resin-
; such as herein described,
2. ¦. . .-;.:•¦¦.-:.. A method of transferring a print pattern onto an objective body »
under a liquid pressure comprising the steps of floating on a liquid surface a pattern
. such as herein described,
transfer film having a print pattern activated by an activator,/transferring said print
pattern on said pattern transfer film onto said objective body under said liquid pressure
produced by immersing said objective body below said liquid surface into the liquid
while said objective body is faced to said pattern transfer film and then forming a
protection coat layer on said objective body having said print pattern transferred,
characterized by said activator containing a binder resin formed of a graft copolymer
comprising an alkoxy -----(poly)alkylene-glycol------.mono (m.eth) acrylate of 5
through 50 weight %, a chlorinated polypropylene resin of 5 through 50 weight % and
a polymerized vinyl compound of 90 weight % or less., said.protection coat layer being
formed on said objective body with an intermediate coat layer placed between said
objective body and said protection coat layer and having adhesion to all of said
objective body, said print pattern thereon and said protection coat layer, .and said
.intermediate..coat..layer containing, a binder, resin of a. graft copolymer comprising, a
vinyl,.monomer...haying, a..hpmopo]yme£...glass transition, temperature of 50¦¦.-..or
. more ; . ayinyl,.mpnpm£r,k^^
.than,50' .¦.and ,a chlorinated^ .
3. _: A method of transferring a print pattern on an objective body under
a liquid pressure as claimed in claim 1 or 2, and wherein said vinyl monomer haying
. the ^pmppolymer._glass.,transition temperature, of 50: / .or, more is pf 5, through 95
weight %, said .vjnyljmpnorne^ transitipn.temperature .of
.less.than ,50.,; is of 50.weight %.or less and saidpWorinate^.polypropylene resin
through. 50 weight.%.
4. A method of transferring a print pattern on an objective body under
a liquid pressure as claimed1 lm claim 1 or 2 and wherein sajd_vinyl.mpjipmer having
the_hpmqpplymer .glass .transition temperature,of 50 orjtnore is_of _5 through.,95
weight %j. said.vinyl monomer halving the homopolymer glass transition-temperature of
l$ss.:tliajn50J.;:^
comprises
.through 50. weigjit%r and wherein said protection coat layer. ' / " at least one of an
acrylic polyol resin having a hydroxyl value of 10 - 200 mgKOH/g and a polyester
polyol resin having a hydroxyl value of 10 - 400 mgKOH/g.
5. A liquid pressure pattern transferred article, such as herein described,
produced by the method as claimed in any of claims 1 to 4.
6. A .method of producing a liquid pressure pattern transferring coating
material to be used for the liquid pressure pattern transfer method as claimed, in claim
. wherein there is used
1 or 2 i a coating component to form an intermediate coat layer containing a
binder resin of a graft copolymer comprising a vinyl monomer of 5 through 95 weight
% having a homopolymer glass transition temperature of 50 or more, _a wyl
monomer of 50 weight % or less than having a homopolymer glass transition
temperature of less than 50 and a chlorinated polypropylene resin of 1 through 50
weight %.
7. . ' " A method of producing a liquid pressure pattern transferring coating
material to be used for the liquid pressure pattern transfer method as claimed in claim
; wherein there is used
1 or 2p / a coating component to form a protection coat layer containing at least
one of an acrylic polyol resin having a hydroxyl value of 10 - 200 mgKOH/g and a
polyester polyol resin having a hydroxyl value of 10 - 400 mgKOH/g and §.. .coating
..component ,to; form said intermediate.coat layer^containing a binder resin.of.,a_graft
.cppcjyrner. comprising _a vinyl jnonomer. ,0/ 5 through _95 weight. %. haying, a
liompnolymer glass Jxansition temperature of 5.0,' ..or or more a vinyl monomer of
50 weight % ,oriess haying a homopolymer glass transition temperature .of .less, than
...50 and.a chlorinated polypropylene resin of 1 through 50.weight. %.

On a print pattern (12T) transferred on an objective body (34) under a
liquid pressure is formed an intermediate coat layer (42) containing a binder
resin of a graft copolymer comprising two unsaturation group containing
vinyl monomers having respective glass transition temperatures different
from each other and then a protection coat layer (46) containing at least one
of an acrylic polyol resin having a hydroxyl value of 10 - 200 mgKOH/g and a
polyester polyol resin having a hydroxyl group of 10 - 400 mgKOH/g.

Documents:

in-pct-2001-1122-kol-abstract.pdf

in-pct-2001-1122-kol-assignment.pdf

in-pct-2001-1122-kol-claims.pdf

in-pct-2001-1122-kol-correspondence.pdf

in-pct-2001-1122-kol-description (complete).pdf

in-pct-2001-1122-kol-drawings.pdf

in-pct-2001-1122-kol-examination report.pdf

in-pct-2001-1122-kol-examination report1.1.pdf

in-pct-2001-1122-kol-form 1.pdf

in-pct-2001-1122-kol-form 18.pdf

in-pct-2001-1122-kol-form 3.pdf

in-pct-2001-1122-kol-form 5.pdf

in-pct-2001-1122-kol-gpa.pdf

IN-PCT-2001-1122-KOL-GRANTED-ABSTRACT.pdf

IN-PCT-2001-1122-KOL-GRANTED-CLAIMS.pdf

IN-PCT-2001-1122-KOL-GRANTED-DESCRIPTION (COMPLETE).pdf

IN-PCT-2001-1122-KOL-GRANTED-DRAWINGS.pdf

IN-PCT-2001-1122-KOL-GRANTED-FORM 1.pdf

IN-PCT-2001-1122-KOL-GRANTED-SPECIFICATION.pdf

IN-PCT-2001-1122-KOL-OTHERS.pdf

IN-PCT-2001-1122-KOL-REPLY TO EXAMINATION REPORT.pdf

in-pct-2001-1122-kol-reply to examination report1.1.pdf

in-pct-2001-1122-kol-specification.pdf

IN-PCT-2001-1122-KOL-TRANSLATED COPY OF PRIORITY DOCUMENT.pdf


Patent Number 251581
Indian Patent Application Number IN/PCT/2001/1122/KOL
PG Journal Number 13/2012
Publication Date 30-Mar-2012
Grant Date 26-Mar-2012
Date of Filing 29-Oct-2001
Name of Patentee FUJIKURA KASEI CO. LTD.
Applicant Address NO. 20-7, HASUNE 3-CHOME, ITABASHI-KU, TOKYO
Inventors:
# Inventor's Name Inventor's Address
1 HORI NOBUYUKI NO. 5-4-34, TAKAHASHI, SHIMIZU-SHI, SHIZUOKA-KEN, 424-0041
2 YAMAMOTO SEIICHI NO. 13-1, SAKURADA 5-CHOME, WASHIMIYA-MACHI, KITAKATUSHIKA-GUN, SAITAMA-KEN 340-0203
PCT International Classification Number B44C 1/175
PCT International Application Number PCT/JP2001/01291
PCT International Filing date 2001-02-22
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2000-047367 2000-02-24 Japan