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公开(公告)号：JPH05135345A
公开(公告)日：1993-06-01
申请号：JP32149991
申请日：1991-11-11
Applicant: TORAY INDUSTRIES
Inventor： HIRATA JUN , TSUNASHIMA KENJI , KITAGAWA TAKEO
Abstract: PURPOSE:To provide a magnetic recording medium excellent in rust preventing property and durability by applying a coating agent consisting of high molecular compd. containing phosphate group on a high molecular base substance of a magnetic recording medium provided with metal thin film magnetic body layer on a high molecular base substance. CONSTITUTION:Various kinds of films such as polyester or polyamid are used as a high molecular base substance, by the polyester film is preferable from the stand-point of price and performances. Metal thin film magnetic layer is provided on this high molecular base substance, and a coating agent consisting of high molecular compd. containing phosphate group is applied on the high molecular base substance. Thus, metal thin film type magnetic recording medium excellent both in rust preventing property and durability and, also, excellent in easily sliding property, smoothness, easily adhesive ability, resistance to guiding, traveling property, electromagnetic conversion characteristics is obtained.
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公开(公告)号：JPH04348941A
公开(公告)日：1992-12-03
申请号：JP12384091
申请日：1991-05-28
Applicant: TORAY INDUSTRIES
Inventor： HIRATA JUN , KITAGAWA TAKEO , TSUNASHIMA KENJI
Abstract: PURPOSE:To provide an adherent polyester film superior in adhesion. blocking resistance, moisture resistance and solvent resistance, and in addition, provide the adherent polyester film suitable for applications to a floppy disc and the like. CONSTITUTION:An adherent polyester film is obtained by laminating a water-soluble copolymerized polyester, in which at least 5 mole % and at most 60 mole % of a 1,1,3-trimehyl-3-phenyleneindan-4',5-dicarboxylic acid as a component of a dicarboxylic acid and/or at least 5 mole % and at most 60 mole % of a BPS-EO as a component of a diol is copolymerized, on a polyester film.
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公开(公告)号：JPH06286090A
公开(公告)日：1994-10-11
申请号：JP10511193
申请日：1993-04-07
Applicant: TORAY INDUSTRIES
Inventor： HIRATA JUN , KITAGAWA TAKEO , MIMURA TAKASHI
Abstract: PURPOSE:To provide a mold releasable laminated polyester film in which mold releasability, easy lubricity, blocking resistance, chemical resistance are excellent and to additionally provide a mold releasable laminated polyester film which is adapted for a transfer foil, a tire, a PVC marking film, fomentation, lapping tape, plaster utility, etc. CONSTITUTION:A laminated polyester film comprises a layer containing wax as a main ingredient and laminated at least on one surface of a polyester film, wherein dispersion force component of a surface free energy of the layer is 27dyn/cm or less and a thickness of the layer is 0.005mum or more.
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公开(公告)号：JPH06255060A
公开(公告)日：1994-09-13
申请号：JP7291993
申请日：1993-03-08
Applicant: TORAY INDUSTRIES
Inventor： HIRATA JUN , KITAGAWA TAKEO , MIMURA TAKASHI
Abstract: PURPOSE:To provide a mold release laminated polyester film having excellent mold release properties, blocking resistance, chemical-resistance, etc., and additionally adapted for utility of a transfer foil, a tire, a PVC marking film, fomentation, a lapping,tape, plaster, etc. CONSTITUTION:A mold release laminated polyester film is obtained by forming a coating film made of polypropylene wax water emulsion having 32 dynes/cm or less of surface free energy and 0.005mum or more of a dry film thickness at least on one side surface of a polyester film.
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公开(公告)号：JPH05338022A
公开(公告)日：1993-12-21
申请号：JP17598792
申请日：1992-06-11
Applicant: TORAY INDUSTRIES
Inventor： HIRATA JUN , KITAGAWA TAKEO , MIMURA TAKASHI
IPC: B29C55/12 , B29K67/00 , B29L7/00 , C08G63/18 , C08G63/78 , C08J5/18 , C08J7/04 , C08L67/03 , G11B5/73 , G11B5/733 , G11B5/704
Abstract: PURPOSE:To provide an easily-slidable transparent polyester film which is excellent in easily-slidable properties, transparency, cutting resistance, smoothness and easily-adhesive properties and suitable for use of a magnetic material, graphics, a diazo photosensitive film, a photographic film, a packaging film, an electric insulation film and tracing. CONSTITUTION:This is an easily-slidadable transparent polyester film possessing at least 1 X10 pieces/mm of substantially coreless protrusions comprised of a self-crosslinking acrylic emulsion and silane coupling agent on at least one side of the film.
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Patent Agency Ranking
公开(公告)号：JPH05310977A
公开(公告)日：1993-11-22
申请号：JP14685992
申请日：1992-05-13
Applicant: TORAY INDUSTRIES
Inventor： HIRATA JUN , KITAGAWA TAKEO , MIMURA TAKASHI
IPC: B29C55/12 , B29K67/00 , B29L7/00 , B29L9/00 , B32B7/02 , B32B27/18 , B32B27/36 , C08J7/04 , C08L67/02 , G11B5/73 , G11B5/733 , G11B5/704
Abstract: PURPOSE:To obtain the polyester film, excellent in adhesion, blocking resistance and electrification characteristics and suitable as a substrate film, etc., for magnetic recording materials by laminating a specific readily bondable layer to a polyester film. CONSTITUTION:The objective product is obtained by laminating a layer composed of (A) a water-soluble copolyester composed of an acid component containing g >=50mol% aromatic dicarboxylic acid component (preferably terephthalic acid, etc.) and 5-50mol% ester-forming alkali metal sulfonate compound (preferably sodium 5-sulfoisophthalic acid, etc.) and a glycol component (preferably ethylene glycol, etc.) and (B) a silane coupling agent (preferably gamma-glycidoxypropyltrimethoxysilane) to at least one surface of a polyester film. Polyethylene terephthalate is preferred as the polyester forming the film.
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公开(公告)号：JPH03216383A
公开(公告)日：1991-09-24
申请号：JP1310590
申请日：1990-01-22
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , KITAGAWA TAKEO , TSUNASHIMA KENJI
Abstract: PURPOSE:To obtain a transfer image generating no lowering of close adhesiveness under a high temp. and high humidity condition and excellent in gradation properties by forming an easy adhesion layer by applying a coating solution consisting of an aqueous copolymer obtained by copolymerizing a specific compound and an aqueous isocyanate compound to a film and stretching the coated film after drying. CONSTITUTION:An easy adhesion layer and a sublimation type ink layer are provided to the single surface of a biaxially stretched polyester film in this order and the easy adhesion layer is formed by applying a coating solution consisting of an aqueous copolymer obtained by copolymerizing a compound having a phosphate group or a phosphoric ester group represented by formula (1) (wherein R1 is a hydrogen atom, a 1 - 20C alkyl group, a monoethanolamine group, a dimethylaminoethyl methacrylate group or a diethylaminoethyl methacrylate group) and other compound having an ethylenic unsaturated bond and an aqueous isocyanate compound to a film and stretching the coated film after drying. As the other compound having the ethylenic unsaturated bond copolymerized with the compound having the unsaturated bond, alkyl acrylate can be designated.
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公开(公告)号：JPH06336532A
公开(公告)日：1994-12-06
申请号：JP14849693
申请日：1993-05-27
Applicant: TORAY INDUSTRIES
Inventor： KITAGAWA TAKEO , HIRATA JUN , MIMURA TAKASHI
Abstract: PURPOSE:To improve the adhesion and blocking resistance by incorporating a specified acrylic resin and a specified polyethyleneimine in a coating film. CONSTITUTION:Additives are added to a film-forming polyester produced by esterifying a dicarboxylic acid or an esterifiable derivative thereof with a glycol, and the obtained mixture is dried and melt-extruded into an unoriented sheet, which is formed into a biaxially oriented polyester film having an intrinsic viscosity of 0.40-1.20dl/g, a draw ratio of 2.0-5.0 in each direction and a thickness of 2-500mum. A mixed coating agent comprising 100 pts.wt. acrylic resin prepared by polymerizing a monomer having a crosslinking functional group with another compound and a monomer forming the basic skeleton in a sum ratio of 0.1-15wt.%, having at least one kind of crosslinking functional group in the molecule and having a molecular weight of 450000 and 0.1-100 pts.wt. polyethyleneimine of an average molecular weight of 1000-100000 is applied to at least either surface of the polyester film to form a coating film of a thickness of 0.01-5mum.
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公开(公告)号：JPH06293839A
公开(公告)日：1994-10-21
申请号：JP10626493
申请日：1993-04-08
Applicant: TORAY INDUSTRIES
Inventor： HIRATA JUN , KITAGAWA TAKEO , MIMURA TAKASHI
IPC: C08J7/04
Abstract: PURPOSE:To obtain the subject film prepared by applying a specific coating on the surface of a polyester film, suitable for magnetic recording materials, etc., and excellent in antistatic properties, slippery smoothness, water solubility, adhesiveness, blocking resistance and solvent resistance. CONSTITUTION:The objective film has a coating of a mixture consisting of (A) a water soluble copolyester such as a copolyester, etc., obtained by copolymerizing 10-20mol% ester forming alkali sulfonate and (B) an oxazoline- based reactive polymer (the mixing ratio of the component A to B is 10/90 to 99.9/0.1 by wt. ratio) and being mainly a water dispersible or water soluble oxazoline compound, at least on one surface of a polyester film such as polyethylene terephthalate.
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公开(公告)号：JPH0679845A
公开(公告)日：1994-03-22
申请号：JP23702392
申请日：1992-09-04
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , KITAGAWA TAKEO
Abstract: PURPOSE:To make running properties good, to decrease wear and contamination of a head and to attempt to improve adhesiveness of an ink by forming an easily slipping layer with a projection-formed film wherein a fluoro-particle is the main ingredient in a polyester film for heat-sensitive transfer material consisting of a laminated film wherein an easily slipping layer is provided on at least one face. CONSTITUTION:An easily slipping layer wherein a resin-coated fluoro-particle is a main constitutional ingredient is provided on at least one face of a polyester film. Namely, a composite particle wherein a resin is physically and chemically bonded is prepd. and a projection based on a fluoro-particle is formed with coating this to make it possible to keep the projection-formed particle with a thermoplastic resin. By using a polyester film for heat-sensitive transfer consisting of a laminated film having an easily slipping layer like this, sticking of a thermal head is prevented and smooth running is held and clarity of printing is improved.
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