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公开(公告)号：JP2002050222A
公开(公告)日：2002-02-15
申请号：JP2000236631
申请日：2000-08-04
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI
IPC: G02B5/08 , F21V8/00 , G02F1/1335 , G02F1/13357 , G09F9/00
Abstract: PROBLEM TO BE SOLVED: To provide a structural member for a reflecting plate of a surface light source whose changes in dimension after long use are small, whose distortion when used as a reflecting plate is small, and which can maintain high quality images for a long time. SOLUTION: A white film for the reflecting plate of the surface light source is made of white polyester film containing bubbles. The partial melting point of the white polyester film is 60 deg.C or higher but 145 deg.C or lower.
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公开(公告)号：JP2002040214A
公开(公告)日：2002-02-06
申请号：JP2000223433
申请日：2000-07-25
Applicant: TORAY INDUSTRIES
Inventor： MIMURA TAKASHI , TANAKA YOSHIO , OWATARI HISASHI
Abstract: PROBLEM TO BE SOLVED: To provide a member for surface light source reflection excellent in initial reflective characteristics, small in reduction with lapse of time of reflectance and luminance in long time usage and capable of maintaining high quality image for a long term. SOLUTION: A white film for surface light source reflection plate is characterized in that a coating layer containing a substance having UV absorbing ability and a fluorescent whitening agent is provided on at least one surface of a white film having bubbles in its internal part.
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公开(公告)号：JP2002029019A
公开(公告)日：2002-01-29
申请号：JP2001113626
申请日：2001-04-12
Applicant: TORAY INDUSTRIES
Inventor： TANAKA HIROYUKI , TANAKA SHOTARO , MIMURA TAKASHI
IPC: B32B27/36 , B29C55/14 , B29K67/00 , C08K3/00 , C08L101/00 , C08L101/12
Abstract: PROBLEM TO BE SOLVED: To provide a biaxially oriented laminated polyester film characterized in that a dimensional change ratio and a rise in the coefficient of friction are reduced after long-term use under constant load at a high temperature and suitable for use as a high capacity magnetic tape. SOLUTION: The biaxially oriented laminated polyester film is obtained by providing a lamination part comprising an organic polymer or inorganic matter on at least one surface of a biaxially oriented polyester film and the elastic modulus in the longitudinal direction and/or lateral direction of this film is 7.0 GPa or more, the heat shrinkage factor thereof at 100 deg.C measured in the same direction is 0.50% or less and the creep compliance thereof after the elapse of 30 min under a load condition of 28 MPa at 50 deg.C measured in the same direction is 0.05-0.30 GPa-1.
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公开(公告)号：JP2002019000A
公开(公告)日：2002-01-22
申请号：JP2000206202
申请日：2000-07-07
Applicant: TORAY INDUSTRIES
Inventor： TANAKA SHOTARO , TANAKA HIROYUKI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film having large bending strength even if small in thickness, excellent in heat resistance and extremely excellent even in form stability when heat-treated in a processing process. SOLUTION: The laminated polyester film is obtained by forming laminating films containing 30 wt.% or more of alkali metal silicate on both surfaces of a polyester film. The laminated polyester film is manufactured by applying a solution containing 30 wt.% or more of alkali metal silicate with respect to the total solid to both surfaces of the polyester film before crystal orientation is substantially completed and stretching the coated film at least uniaxially to dry the same.
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公开(公告)号：JP2001341241A
公开(公告)日：2001-12-11
申请号：JP2000168608
申请日：2000-06-06
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , SHIRAKAWA ARIMICHI , MIMURA TAKASHI
IPC: B32B27/20 , C08L33/00 , C08L63/00 , C08L67/00 , C08L75/04 , C09J7/02 , C09J133/00 , C09J163/00 , C09J167/00 , C09J175/04
Abstract: PROBLEM TO BE SOLVED: To provide a laminated film with improved adhesive properties with various coating articles under ordinary condition and at the same time, with stability with time and improved adhesive properties after wet heat treatment. SOLUTION: The laminated film in which a laminated film comprising at least one resin selected from acrylic resins, polyester resins and urethane resins and an amide-epoxy compound are main ingredients is provided on at least one face of a thermoplastic resin film and 2-200 pts.wt. amide-epoxy compound in terms of solid content weight ratio are incorporated in 100 pts.wt. resin in the laminated film, is provided.
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Patent Agency Ranking
公开(公告)号：JP2001001651A
公开(公告)日：2001-01-09
申请号：JP17060699
申请日：1999-06-17
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , KOJIMA SATOSHI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide excellent hot stick resistance, no dirt of a thermal head and excellent printability, by laminating a laminate film containing a mixture of a heat resistant resin and an oily substance as a constituting component on a biaxially oriented polyester film without any intermediary of an adhesive layer. SOLUTION: A polyester film is obtained by longitudinally and axially orienting the film before its crystal orientation is completed in the state that a laminate film is provided, and completing the orientation by heat treating to exhibit a biaxial orientation pattern by a wide angle X-ray diffraction. In the laminate film, a main constituting component is a mixture of a heat resistant resin and an oily substance of 70% or more contained in the film. The laminate film is laminated on at least one surface of the polyester film substantially without intermediary of an adhesive layer. Thus, excellent hot stick resistance, no dirt of a thermal head and excellent printability can be provided even in a high energy application area.
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公开(公告)号：JP2000280427A
公开(公告)日：2000-10-10
申请号：JP9617799
申请日：1999-04-02
Applicant: TORAY INDUSTRIES
Inventor： TANAKA SHOTARO , KOJIMA SATOSHI , MIMURA TAKASHI
IPC: B32B27/36
Abstract: PROBLEM TO BE SOLVED: To obtain a laminated film having excellent flame retardant effect and good productivity by laminating heat resistant resin layers on both surfaces of a polyester film, and setting a drip rate when burned to a specific value or below. SOLUTION: As a polyester in a polyester film (hereinafter referred to as a 'film'), it is not particularly limited, and a polypropylene naphthalate or the like is used. As the film, a film biaxially oriented in the state that a laminated film is provided is desired. A drip rate of the film is 10% or below. Here, the rate is obtained by a combustion test based on UL94VO standards. The film having such a small drip rate is obtained by laminating heat resistant resin layers on both surfaces of the film. As the heat resistant resin, a resin soluble in a bipolar aprotic solvent is suitably used. In this case, an aromatic polyamide resin is suitable. As one example, an N-methyl-2-pyrrolidone can be used.
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公开(公告)号：JP2000218738A
公开(公告)日：2000-08-08
申请号：JP2338699
申请日：1999-02-01
Applicant: TORAY INDUSTRIES
Inventor： NOGUCHI YUKIO , YOSHIOKA TADASHI , KUROME TAIICHI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To improve the self-recovering properties of a PPS film capacitor without impairing the outstanding heat resistance, dielectric characteristics, mechanical characteristics and the like of a PPS film by laminating a noncrystalline polyester resin composition on one face of a biaxially oriented polyphenylene sulfide(PPS) film. SOLUTION: The biaxially oriented PPS film is formed by melt-extruding, biaxially orienting and thermally treating a resin composition mainly composed of poly-p-phenylene sulfide. In addition, the PPS laminated film is formed by laminating a noncrystalline polyester resin layer at least on one face of the PPS film. The lamination process is preferably such that a solution of a noncrystalline polyester resin composition or a microparticle dispersion of the composition is applied to the PPS film, and the solvent is removed to obtain the laminated film. The capacitor is manufactured by vapor-depositing a metal at least on one face of the PPS laminated film, and winding or laminating metallized films each other or a double-metallized film and the like alternately.
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公开(公告)号：JP2000203155A
公开(公告)日：2000-07-25
申请号：JP900599
申请日：1999-01-18
Applicant: TORAY INDUSTRIES
Inventor： SHIRAKAWA ARIMICHI , TAKADA HAGUMU , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To improve the adhesion durability between an ink accepting layer and a base material polyester film by a method wherein a layer made of a polyester resin melt with hot water is laminated onto at least one side of a polyester film so as to provide an ink accepting film through the above layer. SOLUTION: In this accepting film for an ink jet as the polyester film used for a base material film, a polyester, the major constitutional component of which is ethylene terephthalate, is preferably used from the synthetic judgement on quality, economical efficiency or the like. Further, when heat acts on a base material, a polyethylene-2,6-naphthalate excellent in heat resistance and rigidity is preferable. Onto at least one side of the above base material polyester film, a layer made of a polyester resin meltable with hot water is laminated. Onto the above layer, an ink accepting layer including a water-soluble resin such as a polyvinyl alcohol or a water-dispersible resin is laminated so as to improve the adhesion durability.
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公开(公告)号：JP2000185382A
公开(公告)日：2000-07-04
申请号：JP36561798
申请日：1998-12-22
Applicant: TORAY INDUSTRIES
Inventor： SEKI SHIGEMI , MIMURA TAKASHI , OWATARI HISASHI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film excellent in folding crease properties, smoothness, whiteness and cushioning properties. SOLUTION: A laminated polyester film is constituted by laminating a layer (B-layer) based on a polyester resin (c) and a thermoplastic resin (d) incompatible with the resin (c) on the single surface or both surfaces of a layer (A-layer) based on a polyester resin (a) and a thermoplastic resin (b) incompatible with the resin (a). In this case, the thermoplastic resin (b) and the thermoplastic resin (d) have different compsns. and the center line average roughness Ra of the B-layer is 0.5 μm or less and the apparent density of the film is 0.5-below 1.3 g/cm3.
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