公开(公告)号：JP2002187963A

公开(公告)日：2002-07-05

申请号：JP2000388611

申请日：2000-12-21

Applicant: TORAY INDUSTRIES

Inventor： TAKAHASHI KOZO ,  MATSUI RYOSUKE ,  YOSHIDA MINORU

IPC: B65D65/02 ,  B32B15/08 ,  B32B15/09 ,  B32B27/36 ,  B65D65/40 ,  C08J3/22 ,  C08J5/18 ,  C08K3/08 ,  C08K5/101 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To prepare a biaxially oriented polyester film showing excellent releasability even after repeated use, use after a molding process, and use under a water atmosphere, and further exhibiting a stable performance with a small dispersion, and having excellent releasability. SOLUTION: This biaxially oriented polyester film comprises a film consisting of a polyester comprising an ethylene terephthalate unit and/or an ethylene phthalate unit as a principal constituting component, the melting point of the film being 180-270 deg.C, the film comprising carnauba wax of 0.1-2 wt.% (X wt.%) and a germanium element (Y ppm) of an amount satisfying the equation; 10X

公开(公告)号：JP2002120279A

公开(公告)日：2002-04-23

申请号：JP2000315154

申请日：2000-10-16

Applicant: TORAY INDUSTRIES

Inventor： HASHIMOTO KOKICHI ,  TAKAHASHI KOZO ,  YOSHIDA MINORU

IPC: C08J5/18 ,  B29C55/12

Abstract: PROBLEM TO BE SOLVED: To provide a biaxially stretched polyester film for molding showing excellent environmental resistance, transparency, printability, moldability and beautifulness. SOLUTION: A biaxially stretched polyester film for molding has an ethyleneterephthalate unit and/or an ethylenenaphthalate unit as a major component wherein the polyester film shows a melting point of not lower than 245 deg.C and has a whole haze Ht(%)}, thickness d (μm)} and a face orientation coefficient (fn) each within a specific range.

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：JPH0665483A

公开(公告)日：1994-03-08

申请号：JP14956393

申请日：1993-06-21

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  AOYAMA MASATOSHI ,  YOSHIDA MINORU

IPC: B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  B32B27/36 ,  C08J5/18 ,  C08K3/22 ,  C08K7/04 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To obtain a polyester composition giving a film having excellent flatness, abrasion resistance and scratch resistance and suitable for magnetic tape, photographic film, graphic arts film, etc., by adding acicular inorganic particles to a polyester. CONSTITUTION:The objective composition is produced by compounding (A) a polyester composed of an aromatic dicarboxylic acid as a bifunctional acid component and a glycol component (preferably a polymer containing alkylene terephthalate or alkylene naphthalate as main constituent unit) with (B) preferably 0.01-5wt.% of acicular particles of an inorganic substance (preferably titanium oxide, aluminum oxide or zirconium oxide). The component B is preferably dispersed in glycol, etc., to be used as a raw material for the component A, slurrying the mixture and directly adding the slurry to the polymerization reactional system or kneading the slurry into the polyester. The component B, e.g. aluminum oxide, is produced by subjecting aluminum successively to alkylation, hydrolysis and thermal decomposition.

公开(公告)号：JPH0625514A

公开(公告)日：1994-02-01

申请号：JP15084992

申请日：1992-06-10

Applicant: TORAY INDUSTRIES

Inventor： KIMURA MASAHIRO ,  SASAKI TOSHIHIRO ,  YOSHIDA MINORU

IPC: B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18 ,  C08K3/00 ,  C08L67/00

Abstract: PURPOSE:To provide a thermoplastic polyester composition comprising a polyester containing organic polymer fine particles extremely fine in their particle diameters and inorganic particles having a specific particle diameter, and giving films excellent in flatness, lubricity and wear resistance. CONSTITUTION:This thermoplastic polyester composition comprises (A) a thermoplastic polyester preferably consisting mainly of a polyethylene terephthalate, (B) organic polymer fine particles (preferably, styrene/ethylvinylbenzene/ divinylbenzene copolymer, etc.) having a particle diameter of 0.002-0.1mum, preferably 0.02-0.08mum, more preferably 0.002-0.07mum, preferably the heat-resistant organic polymer fine particles having a thermal decomposition temperature of >=350 deg.C, in an amount of 0.01-10wt.% based on the component A, and (C) inorganic particles (preferably silicon dioxide or calcium carbonate) having a particle diameter of 0.002-5mum in a B/C weight ratio of 1/(0.001-10). The biaxially oriented (laminated) polyester film comprising this composition.

公开(公告)号：JPH05302021A

公开(公告)日：1993-11-16

申请号：JP11042492

申请日：1992-04-28

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  YOSHIDA MINORU ,  SUZUKI MASARU

IPC: B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18 ,  C08K3/22 ,  C08L67/00

Abstract: PURPOSE:To obtain a film of excellent abrasion resistance by adding chi-alu minum oxide particles to a thermoplastic polyester and molding the resulting composition into a film. CONSTITUTION:A composition prepared by adding chi-aluminum oxide particles to a thermoplastic polyester is formed into a film. The aluminum oxide particles can be prepared by firing, e.g. gibbsite at 400-1100 deg.C. The specific surface area of the chi-aluminum oxide particle is desirably 10m /g or above. The amount of the chi-aluminum oxide particles added is desirably 0.01-10 pts.wt. per 100 pts.wt. thermoplastic polyester.

公开(公告)号：JPH05302020A

公开(公告)日：1993-11-16

申请号：JP11042292

申请日：1992-04-28

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  YOSHIDA MINORU ,  SUZUKI MASARU

IPC: B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18 ,  C08K3/22 ,  C08L67/00

Abstract: PURPOSE:To obtain the title composition which can give a film having improved abrasion resistance and therefore being desirable for, e.g. a magnetic film by adding kappa-aluminum oxide particles to a thermoplastic polyester composition. CONSTITUTION:The title composition is produced by adding kappa-aluminum oxide particles to a thermoplastic polyester (e.g. polyethylene terephthalate). The aluminum oxide particles can be prepared by firing, e.g. gibbsite at, say, about 900-1300 deg.C. The specific surface area of the aluminum oxide particle added is desirably 10m /g or above. The amount of addition is desirably about 0.01-10 pts.wt. This composition can be made into a tape excellent in abrasion resistance and useful for, e.g. a magnetic tape.

公开(公告)号：JPH05171012A

公开(公告)日：1993-07-09

申请号：JP34381491

申请日：1991-12-26

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA MASATOSHI ,  YOSHIDA MINORU ,  SUZUKI MASARU

IPC: C08J5/18 ,  C08K3/22 ,  C08L67/00 ,  C08L67/02 ,  D01F6/92

Abstract: PURPOSE:To prepare a polyester compsn. useful for preparing a film or fiber excellent in abrasion resistance by compounding a thermoplastic polyester with a specific particulate zirconium oxide. CONSTITUTION:A thermoplastic polyester (e.g. polyethylene terephthalate) is compounded with a monoclinic and/or tetragonal particulate zirconium oxide pref. having a mean particle diameter of 0.005-3mum, still pref. 0.005-0.3mum.

公开(公告)号：JPH0532871A

公开(公告)日：1993-02-09

申请号：JP27445491

申请日：1991-07-26

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  YOSHIDA MINORU ,  SUZUKI MASARU

IPC: C08G63/183 ,  C08G63/78 ,  C08J5/18 ,  C08K7/00 ,  C08K9/04 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To provide the title compsn. which is molded into a film or fiber excellent in slipperiness and resistance to shaving by compounding a thermoplastic polyester resin with two kinds of org. polymer particles each of which has a low strength and a specified mean particle diameter. CONSTITUTION:The title compsn. is prepd. by compounding a thermoplastic polyester resin with two kinds of org. polymer particles: one having a mean particle diameter of 0.1-0.6mum and the other having a mean particle diameter of 0.6-2.0mum, the both having a strength under 10% deformation (S10) satisfying the equation: 0 ).

公开(公告)号：JPH04103624A

公开(公告)日：1992-04-06

申请号：JP22288790

申请日：1990-08-23

Applicant: TORAY INDUSTRIES

Inventor： SAKAMOTO JUN ,  YOSHIDA MINORU ,  UEDA TOMOAKI

IPC: C08G63/78

Abstract: PURPOSE:To obtain the subject resin, excellent in affinity and adhesion of particles to a polyester and useful as magnetic tapes, etc., by adding particles having the surface treated with a specific aromatic compound to a system before completing polycondensing reaction. CONSTITUTION:A dicarboxylic acid containing an aromatic dicarboxylic acid as a principal acid component and an ester-forming derivative thereof and glycol are used to produce a polyester. In the process, particles having the surface treated with an aromatic compound expressed by the formula [R1 is sulfonic acid group or alkali metallic salt of the sulfonic acid group, carboxyl group or alkali metallic salt of the carboxyl group; R2 is sulfonic acid group or alkali metallic salt of the sulfonic acid group, carboxyl or alkali metallic salt of the carboxyl or H; R3 and R4 are COO(CH2)1OH, COOCmH2m+1 or CnH2n+1 ((l), (m) and (n) are 0-20)] are added to a system before completing the polycondensing reaction to afford the objective composition.