公开(公告)号：JP2001294733A

公开(公告)日：2001-10-23

申请号：JP2000112932

申请日：2000-04-14

Applicant: TORAY INDUSTRIES

Inventor： CHIKUGI TOSHIHIRO ,  KOJIMA HIROJI ,  SASAMOTO FUTOSHI

IPC: C08J5/18 ,  B32B15/08 ,  B32B15/09 ,  B32B27/36 ,  C08G63/68 ,  C08K3/22 ,  C08K7/00 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition which is excellent in transparency, slipperiness and wear resistance, can be used adequately for magnetic recording media, electrical insulation, general industries, food packaging and the like, and particularly combines various characteristics such as flavoriness, adhesion and impact resistance suitable as a film for food packaging and a metal plate laminating film for metallic cans for beverages and foods. SOLUTION: The polyester composition comprises a polyester resin and an inorganic particle composed primarily of the oxide of an element selected from the III and/or IV group in the periodic table, wherein the content of the inorganic particle is 0.001-10 wt.% based on the polyester resin, the BET specific surface area is 30-1,000 m2/g, and the surface hydroxy group concentration is 5×10-3 mol/g or less.

公开(公告)号：JP2001288347A

公开(公告)日：2001-10-16

申请号：JP2000104471

申请日：2000-04-06

Applicant: TORAY INDUSTRIES

Inventor： CHIKUGI TOSHIHIRO ,  KOJIMA HIROJI ,  YOSHIDA MINORU

IPC: B41M5/382 ,  B32B27/20 ,  B32B27/36 ,  B41M5/40 ,  B41M5/41 ,  C08J5/18 ,  C08K3/34 ,  C08L67/02 ,  G11B5/73 ,  G11B5/733

Abstract: PROBLEM TO BE SOLVED: To obtain both a polyester composition having properties of a polyester and properties of particles in combination and having suppressed deterioration of the polyester which is a matrix resin even when formed into a molded product and having excellent characteristics and features when used especially as a film etc., and the film. SOLUTION: This polyester composition is characterized as comprising 25-90 wt.% of the particles in a polyester resin formed from a dicarboxylic acid or its derivative unit and a diol or its derivative unit and having 10-100 equivalents/ton content of carboxy terminal groups and

公开(公告)号：JP2001243616A

公开(公告)日：2001-09-07

申请号：JP2000377517

申请日：2000-12-12

Applicant: TORAY INDUSTRIES

Inventor： ONO MASAAKI ,  OKAMOTO KATSUYA ,  CHIKUGI TOSHIHIRO ,  MORIMOTO TSUTOMU

IPC: B32B27/36 ,  B32B27/00 ,  B32B37/15 ,  C08K5/098 ,  C08K5/42 ,  C08L67/02 ,  G11B5/62 ,  G11B5/73 ,  G11B5/733

Abstract: PROBLEM TO BE SOLVED: To provide a base film suitable for forming a digital video tape excel lent in electromagnetic transducing characteristics, less in drop-out over its entire length from the winding core part to the outer layer part of a product. SOLUTION: The polyester film for magnetic recording medium formed by layering a polyester layer A and a polyester layer B is characterized in that the surface of the layer A side has 2-4 nm centerline average surface roughness (SRa value) and 10-40 nm ten-point average surface roughness (SRz value) and the layer B contains fine particles αhaving >=50 nm and =250 nm and

公开(公告)号：JP2001219521A

公开(公告)日：2001-08-14

申请号：JP2000034471

申请日：2000-02-14

Applicant: TORAY INDUSTRIES

Inventor： KOJIMA HIROJI ,  CHIKUGI TOSHIHIRO ,  SASAMOTO FUTOSHI

IPC: C08J5/18 ,  B32B15/08 ,  B32B15/09 ,  B32B27/20 ,  B32B27/36 ,  C08K3/32 ,  C08L67/00 ,  H01G4/18

Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film reduced in dielectric breakdown. SOLUTION: This laminated polyester film has at least one layer containing 0.05-2 parts by weight of hydroxyapatite particles with a mean particle size of 0.01-3 μm and the layer has surface roughness Ra of 20-60 nm and the maximum projection height of 2,000 nm or less and the coefficient fn of surface orientation represented by formula (1): fn=(nMD+nTD)/2-nZD (wherein, nMD, nTD and nZD are each refractive indexes in longitudinal, lateral and thickness directions) thereof is 0.17-0.18.

公开(公告)号：JP2001151877A

公开(公告)日：2001-06-05

申请号：JP33723499

申请日：1999-11-29

Applicant: TORAY INDUSTRIES

Inventor： MORIMOTO TSUTOMU ,  CHIKUGI TOSHIHIRO ,  SASAMOTO FUTOSHI

IPC: C08J5/18 ,  C08G63/85 ,  C08G63/86 ,  C08K5/56 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To obtain a polyester composition excellent in polymerization reactivity and productivity and scarcely containing any of foreign matter caused by a polymerization catalyst and gelation product in melting and a film composed of the composition and capable of extremely suitably using especially as an optical film. SOLUTION: This polyester composition comprises a metallocene metal compound in an amount of 1-30 ppm expressed in terms of metallocene metal element and a germanium compound in an amount of 5-100 ppm expressed in terms of germanium element and a ratio G/M of germanium metal amount G (mol/ton) to metallocene metal amount M (mol/ton) is >0 and

公开(公告)号：JP2000302896A

公开(公告)日：2000-10-31

申请号：JP10930999

申请日：1999-04-16

Applicant: TORAY INDUSTRIES

Inventor： CHIKUGI TOSHIHIRO ,  SUEOKA MASANORI ,  TSUKUDA AKIMITSU

IPC: G11B5/73 ,  B32B27/34 ,  B41M5/382 ,  B41M5/40 ,  B41M5/41 ,  C08G69/32 ,  C08J5/18 ,  G11B5/64 ,  B41M5/38

Abstract: PROBLEM TO BE SOLVED: To obtain a film excellent in heat resistance, mechanical characteristics and having a high Young's modulus by composing it of plural aromatic polyamide polymers, each having a specific structure, and imparting it with a tension Young's modulus in at least one direction of a specific value or more. SOLUTION: This film comprises aromatic polyamide polymers having a structure represented by formulae I to III and desirably has an intrinsic viscosity (sulfuric acid, 30 deg.C) of at least 0.5. The amount of metal ions in a film formed from a solution having a polymer concentration of 2-50 wt.% is preferably not more than 3,000 ppm. The film has a tension Young's modulus in the lengthwise direction of the film E20 (20 deg.C, 60% relative humidity) of at least 7.3 GPa, an elongation of at least 10%, a moisture absorption of not more than 2.5% and a heat shrinkage factor (20 deg.C, 2 hr- treatment) of not more than 2%. In the formulae, Ar1, Ar2 and Ar3 are each an aromatic nucleus and are bonded via an amide bond and a hydrogen on an aromatic nucleus can be replaced by a monovalent substituent; Ar2 is a para-directing aromatic nucleus; Ar3 is a non-para-directing aromatic nucleus; (n) is at least 3; X, Y and Z are each -NH- or -CO-; when all X's are the same, j

公开(公告)号：JP2000063642A

公开(公告)日：2000-02-29

申请号：JP23276898

申请日：1998-08-19

Applicant: TORAY INDUSTRIES

Inventor： CHIKUGI TOSHIHIRO ,  SHIMIZU YUZO ,  MORIMOTO TSUTOMU

IPC: C08J5/18 ,  B32B27/36 ,  C08K3/32 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To obtain a polyester composition which can give a film excellent in slipperiness, abrasion resistance, electrical properties, punching quality, suitability for lamination with a metal, flavor retention, etc. by incorporating a thermoplastic polyester with hydroxyapatite particles having a specified specific surface area and a specified composition. SOLUTION: The hydroxyapatite used is in the form of particles having a mean particle diameter of 0.01-10 μm, a specific surface area of 50-500 m2/g, and a relative standard deviation of particle diameters of 0.5 or below and is represented by the formula: Ca(PO4)1(OH)m(CO3)nYx (wherein Y is an arbitrary anion other than phospho, hydroxyl, and carbonic group; l=0. 1-0.6; m=0.1-0.4; n=0-0.2; x=0-0.2; 3×1+2×n+z+x=2; and (z) is the valence of the anion, provided that (n) and (x) can not be 0 simultaneously). The pore volume is desirably 0.15-0.7 ml/g. The content of the hydroxyapatite particles is desirably 0.001-5 wt.% based on the polyester, and the thermoplastic polyester is desirably a copolyester.

公开(公告)号：JPH11170283A

公开(公告)日：1999-06-29

申请号：JP36185297

申请日：1997-12-10

Applicant: TORAY INDUSTRIES

Inventor： YASHIRO TOSHIYA ,  CHIKUGI TOSHIHIRO ,  NISHIHARA KENTA

IPC: B29C41/24 ,  B29C55/12 ,  B29K77/00 ,  B29L7/00 ,  C08J5/18 ,  C08L79/08

Abstract: PROBLEM TO BE SOLVED: To increase a film making speed in solution film making and to obtain a film or a sheet-like molding which is excellent in surface properties and flatness. SOLUTION: In the method in which an organic polymer solution is cast on a support to form a film or a sheet-like molding, a mixed solvent of a solvent which is not compatible with the polymer but compatible with the solvent and a solvent which is compatible with both the polymer and the solvent is placed between the support and an organic polymer solution membrane to be cast.

公开(公告)号：JPH1052862A

公开(公告)日：1998-02-24

申请号：JP12234997

申请日：1997-05-13

Applicant: TORAY INDUSTRIES

Inventor： SUEOKA MASANORI ,  CHIKUGI TOSHIHIRO

IPC: C08J5/18 ,  B29C55/12 ,  B29K77/00 ,  B29L7/00 ,  B29L9/00 ,  B32B27/34 ,  B32B33/00 ,  G11B5/73 ,  G11B5/704

Abstract: PROBLEM TO BE SOLVED: To provide a recyclable aromatic polyamide film adapted to be used as a magnetic recording medium. SOLUTION: The aromatic polyamide film is formed of a film containing aromatic polyamide as a main body and satisfies η1 >=1.0, and -0.5

公开(公告)号：JPH1035125A

公开(公告)日：1998-02-10

申请号：JP10158897

申请日：1997-04-18

Applicant: TORAY INDUSTRIES

Inventor： CHIKUGI TOSHIHIRO ,  TSUKUDA AKIMITSU

IPC: B41M5/382 ,  B32B27/00 ,  B32B27/34 ,  B41M5/40 ,  B41M5/41 ,  B41M5/38

Abstract: PROBLEM TO BE SOLVED: To provide a thermosensitive transfer recording medium on which an image can be printed in the high definition mode even under severe printing environments without damaging the outstanding heat resistance and mechanical characteristic of aromatic polyamide. SOLUTION: A base film comprising aromatic polyamide and/or aromatic polyimide as main ingredients has the following two groups of protrusions, at least, on one of the faces, preferably on both faces of the base film: (1) 10 -10 pcs/mm of fine protrusion with a height of 30nm or more from the plane of the film and a maximum diameter of 5nm or more, (2) 5×10 pcs/mm or more of superfine protrusion with a height of not more than 30nm and a maximum diameter of 3nm or more. In addition, a thermosensitive transfer layer is provided on the base film to obtain this thermosensitive transfer recording medium.