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

IPC: B05D7/04 ,  B05D7/24 ,  B29C55/02 ,  B32B9/00 ,  B32B27/36 ,  C08J7/04 ,  G11B5/73 ,  G11B5/733

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.

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.

公开(公告)号：JP2007001292A

公开(公告)日：2007-01-11

申请号：JP2006087369

申请日：2006-03-28

Applicant: TORAY INDUSTRIES

Inventor： TANAKA SHOTARO ,  OHASHI JUNPEI ,  TAKADA HAGUMU

IPC: B32B27/36 ,  B32B15/088 ,  H05K1/03

Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film excellent in the property of adhesion to a coating material, a flame-retardant polyester film using it, a copper-clad laminate, and a circuit board. SOLUTION: In the laminated polyester film, a resin layer containing a polyester resin and an oxazoline-based cross-linking agent is laminated on at least one side of a polyester film, 40 mol% or more of all diol components constituting the polyester resin is diethylene glycol, and the mass ratio between the polyester resin and the oxazoline-based cross-linking agent, constituting the resin layer, is in the range of 20/80-80/20. In the flame-retardant polyester film, a layer containing a polyimide is laminated on both the sides of the laminated polyester film. The copper-clad laminate uses the flame-retardant polyester film. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2003192987A

公开(公告)日：2003-07-09

申请号：JP2001394074

申请日：2001-12-26

Applicant: TORAY INDUSTRIES

Inventor： TSUCHIMOTO TATSURO ,  TANAKA SHOTARO ,  MIMURA TAKASHI

IPC: B32B27/00 ,  C09D183/04 ,  C09D183/05 ,  C09D183/07 ,  C09K3/00

Abstract: PROBLEM TO BE SOLVED: To provide a solventless polysiloxane-based coating agent hardly suffering from deterioration with time and excellent in application property to a plastic film substrate, and a release film having a release layer excellent in releasability, solvent resistance, prevention of migration to the rear surface and adhesion to a substrate. SOLUTION: The solventless polysiloxane-based coating agent comprises the following compounds (A)-(E) in a specific ratio: (A) a polysiloxane bearing an unsaturated group at a molecular end and having a branched structure; (B) a linear polysiloxane bearing at least two unsaturated groups in one molecule; (C) a hydrogen polysiloxane bearing in one molecule at least two hydrogen atoms directly bonded to a silicon atom; (D) a platinum group metal catalyst; and (E) a specific silane compound. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2001277455A

公开(公告)日：2001-10-09

申请号：JP2001016212

申请日：2001-01-24

Applicant: TORAY INDUSTRIES

Inventor： TANAKA SHOTARO ,  TANAKA HIROYUKI ,  MIMURA TAKASHI

IPC: B32B27/36 ,  B29C55/12

Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film, in which the generation of a coarse projection caused by the deposition of an oligomer and the generation of a stain on a surface are extremely little and heat resistance is excellent. SOLUTION: The laminated polyester film is provided with a heat resistant resin layer on both sides of a polyester film and haze value is

公开(公告)号：JP2001138460A

公开(公告)日：2001-05-22

申请号：JP31952299

申请日：1999-11-10

Applicant: TORAY INDUSTRIES

Inventor： TANAKA HIROYUKI ,  TANAKA SHOTARO ,  MIMURA TAKASHI

IPC: B32B27/36

Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film which shows good end part skiving properties and is best suited for a high-capacity magnetic tape. SOLUTION: This laminated polyester film is characterized in that it has a thickness of 15 μm or less and a modulus of elasticity E of 6 GPa or more in the film width direction and/or the film longer direction and further, a bending strength index M of 7.5×10-3 N/m or more in the width direction in terms of 5 μm thickness.

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.