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公开(公告)号：JPH07102082A
公开(公告)日：1995-04-18
申请号：JP27784993
申请日：1993-10-07
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , HARADA YUTAKA , TSUNASHIMA KENJI
IPC: C08J5/18 , B29C55/02 , B29K33/00 , B29K71/00 , B29L7/00 , B29L9/00 , B32B27/30 , C08L25/00 , C08L25/18 , C08L71/00 , C08L71/08
Abstract: PURPOSE:To obtain a gas barrier film with high transparency and gas barrier properties by forming a layer contg. a polymer having specific repeating styrenesulfonic acid units and a polyalkylene oxide. CONSTITUTION:A gas barrier film has a layer contg. 5-95wt.% polymer having repeating styrenesulfonic acid units represented by the formula (wherein R is H or methyl; M is H, an alkali or alkaline earth metal, ammonium, or phosphonium; and R1 to R4 are each H or alkyl) and 5-95wt.% polyalkylene oxide, e.g. polyethylene oxide, having a mol.wt. of 400-1,000,000. The thickness of the layer, though not limited, is pref. 0.01-20mum in terms of gas barrier properties. The film is pref. transparent and has a light transmission of 60% or higher.
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公开(公告)号：JP2003213013A
公开(公告)日：2003-07-30
申请号：JP2002020138
申请日：2002-01-29
Applicant: TORAY INDUSTRIES
Inventor： HARADA YUTAKA , TSUNASHIMA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide an insulating substrate having excellent processability as a circuit board such as the adhesivity to an electrode material while keeping the excellent electrical properties of polyphenylene sulfide. SOLUTION: The polyphenylene sulfide film is composed of a polyphenylene sulfide resin and has an elongation of ≥2% after the heat-treatment at 270°C for 20 min. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002113758A
公开(公告)日：2002-04-16
申请号：JP2000311518
申请日：2000-10-12
Applicant: TORAY INDUSTRIES
Inventor： HARADA YUTAKA , OKAZAKI IWAO , TSUNASHIMA KENJI
IPC: G02F1/1333 , B29B13/06 , B29C47/00 , C08J5/18
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an alicyclic polyolefin resin film which can be used as a base for a liquid crystal displaying element with excellent optical characteristics. SOLUTION: In the method for manufacturing the alicyclic polyolefin resin film in which an alicyclic polyolefin resin is melted and is made into a film by means of a melt extrusion method, the method for manufacturing the alicyclic polyolefin resin film is characterized by performing vacuum drying of the alicyclic polyolefin resin before it is melted and in this case, the vacuum drying is preferably performed at a temperature of at least 100 deg.C and under a pressure of lower than 100 mmHg.
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公开(公告)号：JP2001322199A
公开(公告)日：2001-11-20
申请号：JP2000146222
申请日：2000-05-18
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , HARADA YUTAKA
IPC: C08J7/06 , B32B7/02 , C08K3/00 , C08L101/00
Abstract: PROBLEM TO BE SOLVED: To provide a multi-layer laminate which meets required properties such as surface flawlessness, optical isotropy, super-gas barrier properties, strong wear resistance, superb conductivity and the like and can be manufactured at a low cost and without qualitative variability as well as a manufacturing method for the multi-layer laminate. SOLUTION: This multi-layer laminate is formed of a plurality of layers which show a coefficient of thermal expansion α2 lower than the coefficient of thermal expansion α1 of an organic resin A layer, laminated on the organic resin A layer in such a way that the value of the coefficient of thermal expansion α2 becomes gradually lower in proportion to a distance becoming farther from the A layer. In addition, a B layer which is formed of a non-compatible polymer with the resin A and shows a coefficient of thermal expansion α2 lower than the coefficient of thermal expansion α1 of the A layer, is melted and laminated on both faces of the A layer with the coefficient of thermal expansion α1. Further, the laminate constituted of layers such as the B layer/the A layer/the B layer is extruded from a mouthpiece and the extrusions are solidified by cooling as the method for manufacturing the multi-layer laminate.
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公开(公告)号：JP2001187421A
公开(公告)日：2001-07-10
申请号：JP2000000339
申请日：2000-01-05
Applicant: TORAY INDUSTRIES
Inventor： AEBA MIKA , HARADA YUTAKA , TAKASHIMA NAOHIRO , FURUNO RYOJI
Abstract: PROBLEM TO BE SOLVED: To provide both a tenter clip capable of obtaining a thermoplastic resin film with good productivity, in which physical properties are uniform along the width direction and also thermal dimensional stability and mechanical characteristics are excellent and plane properties are good, and a producing method for the thermoplastic resin film. SOLUTION: The tenter clip is used for stretching in a tenter, a heat tretment process and/or a cooling process. The mechanism of a clip gripping part is changed into such a mechanism that a film is not moved in the longitudinal direction within the clipping part in a stretching process and the film can be moved in the longitudinal direction within the clip gripping part in the heat treatment process and/or the cooling process.
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Patent Agency Ranking
公开(公告)号：JP2001030351A
公开(公告)日：2001-02-06
申请号：JP20746299
申请日：1999-07-22
Applicant: TORAY INDUSTRIES
Inventor： TSUNASHIMA KENJI , OKAZAKI IWAO , HARADA YUTAKA
Abstract: PROBLEM TO BE SOLVED: To manufacture an oriented thermoplastic resin film free from a surface flaw and excellent in surface easy slip properties and surface easy adhesiveness. SOLUTION: A thermoplastic resin sheet is produced by applying a thermoplastic resin B layer to at least the single surface of a thermoplastic resin A layer by coextrusion to form a laminated sheet and stretching the laminated sheet longitudinally and peeling the B layer from the A-layer to laterally stretching and/or heat-treating the thermoplastic resin A layer in a substantial non-contact state to produce a sheet comprising the thermoplastic resin A.
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公开(公告)号：JP2001009983A
公开(公告)日：2001-01-16
申请号：JP18516399
申请日：1999-06-30
Applicant: TORAY INDUSTRIES
Inventor： HARADA YUTAKA , TANAKA SHIGERU , NAGAI ITSUO
Abstract: PROBLEM TO BE SOLVED: To improve the gas barrier property and the scrape-resistance of a coating film or the like under a high humidity by forming the coating film of which the major constituent components are an inorganic plate-form particle and a water-soluble polymer, on one surface of a thermoplastic resin base material, and specifying the number of surface protuberances of a specified height or higher in the coating film. SOLUTION: On one surface of a thermoplastic resin base material of polyolefin, polyethylene terephthalate, polybutylene terephthalate or the like, a coated film of which the major constituent components are an inorganic plate-form particle wherein one plate-form particle is formed by superposing ultra-thin unit crystal layers of kaolinite, halloysite, verculite or the like, and a water-soluble polymer using a cellulose derivative of a polyvinyl alcohol based polymer, carboxymethyl cellulose or the like, is formed. Then, the number of surface protuberances of which the height is 1.5 μm or higher in the coated film is set to be 100/mm2 or lower.
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公开(公告)号：JPH09324061A
公开(公告)日：1997-12-16
申请号：JP7604197
申请日：1997-03-27
Applicant: TORAY INDUSTRIES
Inventor： HARADA YUTAKA , KIMURA MASAHIRO , ABE KOICHI
Abstract: PROBLEM TO BE SOLVED: To prepare a gas-barrier film which comprises a thermoplastic resin substrate and a coating layer formed on at least one side thereof and is excellent in gas-barrier propertied at a high humidity, adhesion between the substrate and the coating layer, and durability of the layer by forming it from a coating fluid contg. a specific inorg. layered compd. and a water-dispersible polymer. SOLUTION: A coating fluid is obtd. by dissolving dispersing 1-60wt.% inorg. layered compd. and 99-40wt.% water-soluble or -dispersible polymer in a solvent mixture comprising water and an alcohol in a wt. ratio of (99/1)-(20/80). The fluid is applied to at least one side of a thermoplastic resin substrate having a light transmission of 40% or higher, an Rt/Ra (a parameter of surface roughness) of 20 or lower, and a thickness of 2-100μm and is dried to form a coating layer having a thickness of 0.01-15μm and an Rt/Ra of 25 or lower.
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公开(公告)号：JPH09151264A
公开(公告)日：1997-06-10
申请号：JP31316895
申请日：1995-11-30
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , HARADA YUTAKA , ABE KOICHI
IPC: C08J7/04 , B32B9/00 , B32B27/16 , B32B27/20 , B32B27/30 , C08L29/02 , C08L29/04 , C08L33/04 , C08L33/12
Abstract: PROBLEM TO BE SOLVED: To provide a gas barrier film exhibiting gas barrier properties even at high humidity and having good adhesion of the constituent coating film to the substrate. SOLUTION: This gas barrier film is prepared by forming a coating film mainly consisting of a water-soluble polymer A, a water-soluble or water- dispersible polymer B having a glass transition point of 70 deg.C or below and an inorganic layered compound on at least either surface of a thermoplastic resin substrate. It is also possible that polymer B is an acrylic polymer having an average molecular weight of 100,000 or above and the coating film contains 0.01-10wt.% crosslinking agent.
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公开(公告)号：JPH09150484A
公开(公告)日：1997-06-10
申请号：JP25432696
申请日：1996-09-26
Applicant: TORAY INDUSTRIES
Inventor： HARADA YUTAKA , KIMURA MASAHIRO , ABE KOICHI
Abstract: PROBLEM TO BE SOLVED: To improve gas barrier properties under high humidity and gas barrier properties and adhesion properties after an endurance test by a method wherein a surface roughness parameter of a gas barrier film coated surface having water-soluble polymer and inorganic lamellar particle as main constituents at least on one side of a thermoset base material is made a specific numerical value or under. SOLUTION: The lamellar particle means an inorganic particle wherein very thin unit crystal layers are piled on each other to form one lamellar particle. A clay compound having swelling properties especially to a solvent is favorable. A surface roughness parameter RH of a coated surface is a maximum height and a distance from the highest crest to the deepest valley of a surface roughness curve, and Ra is a mean roughness of the center line. The surface roughness parameter Rt/Ra is necessarily 20 or under, and is best at about 10 or under. The Rt is favorable at about 1.4μm or under. The reason is because the coating layer is scraped off by contact to a roll in forming the coating at a high speed or by contact of the films to each other in winding, and the gas barrier properties and adhesion after an endurance test sometimes are deteriorated.
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