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公开(公告)号：JP2001246713A
公开(公告)日：2001-09-11
申请号：JP2000060257
申请日：2000-03-06
Applicant: TORAY INDUSTRIES
Inventor： TANAKA HIROYUKI , MIMURA TAKASHI , KOJIMA SATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film excellent in heat resistance and dimentional stability at a high temperature. SOLUTION: In the laminated polyester film wherein heat-resistant resin layers are provided on both surfaces of a biaxially oriented polyester film, curl quantity at the time of heat treatment at 180 deg.C is set to 10 mm or less.
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公开(公告)号：JP2000238444A
公开(公告)日：2000-09-05
申请号：JP4597299
申请日：1999-02-24
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , TAKADA HAGUMU , KOJIMA SATOSHI
Abstract: PROBLEM TO BE SOLVED: To enhance excellent hot stick resistance even in a high printing energy area by laminating a layer containing a heat resistant resin as a main component on at least one side surface of a biaxially oriented polyester film substantially without intermediary of an adhesive layer, and forming a ribbed protrusion on its surface layer. SOLUTION: A ribbed protrusion means that a ratio of a lengthwise direction is 2/1 or above. The protrusion of a heat resistant resin is formed. Thus, when it is used as the heat-sensitive transfer material, extremely excellent hot stick resistance can be incorporated. The thus obtained laminated film has excellent interface adhesive properties. Since an adhesive layer is not interposed at an interface, no releasing of the laminated film occurs. Further, since the protrusion made of the resin is formed on a surface layer of the laminated film, when it is used as the heat-sensitive transfer material, extremely excellent hot stick resistance is provided, and no wear and stain of a thermal head can be obtained.
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公开(公告)号：JP2000177003A
公开(公告)日：2000-06-27
申请号：JP36275798
申请日：1998-12-21
Applicant: TORAY INDUSTRIES
Inventor： KOJIMA SATOSHI , MIMURA TAKASHI , TANAKA SHOTARO
IPC: B32B27/34 , B29C55/14 , B29K67/00 , B29K77/00 , B29L7/00 , B29L9/00 , B32B27/36 , B32B37/00 , B32B31/00
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a laminated film having excellent adhesive properties uniformly on a thermoplastic film using a heat resistant resin without substantially using an adhesive. SOLUTION: The method for manufacturing a heat resistant resin laminated film comprises the steps of coating at least one surface of a thermoplastic film of a polyester or the like with a layer containing a heat resistant resin such as an aromatic polyamide, aromatic polyimide or the like dissolved in a bipolar aprotic solvent as a main component before completing a crystal orientation by uniaxially orienting, orienting the layer in a direction perpendicular to the orienting direction through a preheating step, and heat setting it; wherein the layer is oriented under the condition that a heat resistant resin concentration is 50 wt.% or less.
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公开(公告)号：JPH10296929A
公开(公告)日：1998-11-10
申请号：JP11090997
申请日：1997-04-28
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , KOJIMA SATOSHI , MIMURA TAKASHI
IPC: B32B7/02 , B32B7/10 , B32B27/18 , B32B27/30 , B32B27/36 , C08G63/183 , C08G63/189
Abstract: PROBLEM TO BE SOLVED: To improve gas barrier properties and durability by constituting an easy adhesion layer mainly out of polyester resin and by making a polyvinyl alcohol resin layer contain an amino group-containing silane coupling agent. SOLUTION: An easy adhesion layer and a polyvinyl alcohol resin layer are laminated sequentially on one surface of a thermoplastic resin film at least. The easy adhesion layer of this gas barrier film is constituted mainly of polyester resin and the polyvinyl alcohol resin layer contains an amino group- containing silane coupling agent. The amino group-containing silane coupling agent used herein has an amino group and an easily hydrolyzable alkoxysilane group in a molecule. According to this constitution, the adhesion between the polyvinyl alcohol resin layer and the easy adhesion layer constituted mainly of the polyester resin, i.e., the durability of the gas barrier film, can be greatly improved.
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公开(公告)号：JPH1097191A
公开(公告)日：1998-04-14
申请号：JP24966996
申请日：1996-09-20
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , KOJIMA SATOSHI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To obtain an adhesive label having excellent adhesion property with a printing layer formed on the adhesive label and showing an excellent adhesive effect even after treated under high temp. and high humidity conditions by using a laminated polyester film having a laminated film which contains, as the essential components, a crosslinking agent and two kinds of polyester resins having a specified glass transition temp. Tg and different Tgs each other. SOLUTION: An adhesive layer, polyester film and laminated film are laminated in this order, and a printing layer is formed on at least a part of the laminated film to constitute the adhesive label. The laminated film consists of two kinds of polyester resins having different glass transition temps. each other and a crosslinking agent as the main structural components. The glass transition temp. of the polyester resin having higher glass transition temp. ranges between >=60 deg.C and
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Patent Agency Ranking
公开(公告)号：JP2002307596A
公开(公告)日：2002-10-23
申请号：JP2001109688
申请日：2001-04-09
Applicant: TORAY INDUSTRIES
Inventor： TANAKA HIROYUKI , KOJIMA SATOSHI , MIMURA TAKASHI
IPC: B32B9/00 , B29C55/12 , B29K67/00 , B29L7/00 , B29L9/00 , B32B27/36 , C09D7/12 , C09D183/02 , C09D183/04 , C09D185/00
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film having excellent elastic modulus, also excellent in bending resistance, hard to generate the crack of an end part and suitable for a high capacity magnetic tape. SOLUTION: The laminated film is manufactured by laminating a reinforcing layer, wherein colloidal silica having a shape connected and/or branched in a rosary state is dispersed in a matrix mainly comprising a metal oxide, on at least one surface of a biaxially oriented polyester film, and the elastic modulus in the longitudinal direction and/or lateral direction of the laminated film is not less than 6 GPa.
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公开(公告)号：JP2000177004A
公开(公告)日：2000-06-27
申请号：JP36275698
申请日：1998-12-21
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , KOJIMA SATOSHI , TANAKA SHOTARO
Abstract: PROBLEM TO BE SOLVED: To laminate uniformly at a high speed by a method in which a layer mainly containing a heat resistant resin soluble in a dipolar non-protonic solvent is applied on at least one side of a thermoplastic film before the completion of crystal orientation, preliminary stretching is done at the boiling point of the solvent or below, and heat treatment is done at the boiling point of the solvent or above. SOLUTION: A layer mainly containing a heat resistant resin soluble in a dipolar non-protonic solvent is applied on at least one side of a thermoplastic film before the completion of crystal orientation, and the film is stretched at a temperature below the boiling point of the solvent by a preliminary and simultaneous biaxial orientation method and heat-treated at a temperature above the boiling point of the solvent. A polyester film is preferable as the thermoplastic film in terms of transparency, dimensional stability, mechanical properties, adhesion to a heat resistant resin layer to be laminated, and others. As the solvent, N-methyl-2-pyrrolidone, dimethylformamide, dimethylsulfoxide, and others are used. An aromatic polyamide is preferable is a heat resistant resin.
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公开(公告)号：JP2000168014A
公开(公告)日：2000-06-20
申请号：JP34400198
申请日：1998-12-03
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , TAKADA HAGUMU , KOJIMA SATOSHI
Abstract: PROBLEM TO BE SOLVED: To obtain a laminate in which the adhesion between a thermoplastic film and a heat resistant resin layer is good by a method in which a biaxially oriented polyester film and a layer having lower crystallinity than that of the polyester film are laminated, and a layer containing a heat resistant resin soluble in a dipolar aprotic solvent as a main component is laminated on the lower crystallinity layer. SOLUTION: At least on one side of a biaxially oriented polyester film A, a layer B having lower crystallinity than that of the film A is formed. By forming the layer B, the adhesion between it and a heat resistant resin layer formed on the layer B is improved. The crystallinity of the layer B is lower than that the film A of a base material and is desirably about 15% or below. A layer containing a heat resistant resin soluble in a dipolar aprotic solvent as a main component is laminated on the layer B. Dimethyl sulfoxide is an example of the solvent. The film A is made of polyethylene terephthalate and others, including a mixture of them.
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公开(公告)号：JPH11216947A
公开(公告)日：1999-08-10
申请号：JP2075798
申请日：1998-02-02
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , TAKADA HAGUMU , KOJIMA SATOSHI
Abstract: PROBLEM TO BE SOLVED: To restrain the occurrence of blocking at front and rear surfaces, and the indistinctness of dots at overprinting, and also restrain the occurrence of beading by containing a glycerine component in an ink receiving layer. SOLUTION: The carrier of an image receiving body is preferably a whitened plastic film, and a transparent plastic film for use in OHP or the like. Such a plastic film is preferable to be a polyester from the point of view of rigidity, dimensional stability, transparency, and economic efficiency. For a resin forming the ink receiving layer, there is used various kinds of water absorptive resins. A glycerine component is contained in the ink receiving layer. The content of a glycerine component is preferable to be 3-50 wt.%. Thus, hit ink drops are absorbed in the receiving layer extremely promptly, so that the occurrence of graze or beading by overprinting can be restrained.
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公开(公告)号：JPH1086303A
公开(公告)日：1998-04-07
申请号：JP24799496
申请日：1996-09-19
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , KOJIMA SATOSHI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a film having excellent adhesive properties to various type paint or ink and also excellent adhesive properties even at high temperature and high humidity by providing a laminated film which contains two types of polyester resins having specific Tg and different Tg and crosslinker as main components. SOLUTION: A laminated film containing two types of polyester resins having different glass transition points and crosslinker C as main components is provided at least on one side surface of a polyester film. Glass transition point of the resin A having high glass transition point is 60-110 deg.C, and glass transition point of the resin B having lower glass transition point is lower than 60 deg.C.
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