公开(公告)号：JP2002187942A

公开(公告)日：2002-07-05

申请号：JP2000388484

申请日：2000-12-21

Applicant: TORAY INDUSTRIES

Inventor： UCHIDA MINORU ,  OSAKI MISA ,  AOYAMA MASATOSHI

IPC: C08G63/85

Abstract: PROBLEM TO BE SOLVED: To produce a catalyst for polyester which is excellent in reactivity in esterification, transesterification, and polycondensation in comparison with conventionally used polytrimethylene terephthalate, has a good color tone, and has a low dipropylene glycol content, a low terminal carboxyl group content, and a low insoluble foreign matter content. SOLUTION: In producing a polyester by the polycondensation of a product obtained by the esterification or transesterification of an aromatic dicarboxylic acid component mainly comprising terephthalic acid or its ester-forming derivative with a glycol component mainly comprising propylene glycol, a liquid obtained by treating a titanium compound with water containing an alkali compound, an organic solvent, or a mixture of water and an organic solvent is added as a catalyst for esterification, transesterification and/or polycondensation.

公开(公告)号：JP2001032136A

公开(公告)日：2001-02-06

申请号：JP20249599

申请日：1999-07-16

Applicant: TORAY INDUSTRIES

Inventor： UCHIDA MINORU ,  AOYAMA MASATOSHI ,  HONDA KEISUKE

IPC: C08L67/02 ,  D01F6/84

Abstract: PROBLEM TO BE SOLVED: To provide a polyester fiber containing propylene terephthalate as a main repeating unit, having dipropylene glycol content and intrinsic viscosity satisfying a specific formula, having high dyeability and excellent softness and elastic recovery and suitable for sportswear and inner wear. SOLUTION: The objective fiber contains propylene terephthalate as a main repeating unit and has a dipropylene glycol(DPG) content and intrinsic viscosity(IV) satisfying the formulas: 0.2

公开(公告)号：JP2001026635A

公开(公告)日：2001-01-30

申请号：JP19859199

申请日：1999-07-13

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA MASATOSHI ,  UCHIDA MINORU ,  OZAKI MISA

IPC: C08K3/00 ,  C08G63/183 ,  C08G63/78 ,  C08L67/03 ,  D01F6/62

Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition which yields a fiber product, etc., having a high strength and a high elastic recovery (strechability), allows little break at yarn-making or film-formation and shows an excellent molding processibility. SOLUTION: A polyester composition comprises propylene terephthalate as the main repeating unit and contains 0.001 to 20 wt.% particles having an average particle size of 0.05 to 5 μm. The composition contains 10 or less coarse particles of 5 μm or larger per 10 mg. The composition contains, as catalyst residues, from 0.5 to 300 ppm, calculated as titanium atom, titanium compound containing at least a titanium as a metal element and from 0.5 to 400 ppm, calculated as phosphorus atom, phosphorus compound, wherein the molar ratio of the titanium compound to the phosphorus compound (Ti/P) is from 0.3 to 20.

公开(公告)号：JP2000212831A

公开(公告)日：2000-08-02

申请号：JP1300699

申请日：1999-01-21

Applicant: TORAY INDUSTRIES

Inventor： FUJIMORI MINORU ,  MIZUHASHI MOTOI ,  UCHIDA MINORU

IPC: D01F6/84 ,  D01F6/92

Abstract: PROBLEM TO BE SOLVED: To obtain highly oriented and non-drawn polyester fibers having a birefringence in a specific range in good productivity by spinning a polyester containing a specific phosphorous compound at a specific take-off speed. SOLUTION: The highly oriented and non-drawn polyester fibers contain a phosphorous compound of formula I [R1 and R2 are each H or a monovalent organic group; R3 is a divalent organic group; R4 and R5 are each carboxyl, hydroxyl(ester), a hydroxyalkyl, an alkylalkylene glycol, amino or amido] or formula II R1, R3, R4 and R5 are each same as above; R6 is (CH2)n [(n) is 2-4]} in an amount of 20-1,000 ppm as phosphorus atoms, and has a birefringence δn of 0.015-0.08. The highly oriented and non-drawn polyester fibers are preferably obtained by spinning polyethylene terephthalate at a take-off speed of preferably >=2,000 m/min, more preferably, 3,000-7,000 m/min. The birefringence δn and a set take-off speed V m/min satisfy the relation: 0.0025×V

公开(公告)号：JPH06287812A

公开(公告)日：1994-10-11

申请号：JP7570393

申请日：1993-04-01

Applicant: TORAY INDUSTRIES

Inventor： UCHIDA MINORU ,  MASUDA TOYOHIKO ,  MITSUYOSHI TAKEHIKO

IPC: C08J5/04 ,  D01F6/62 ,  D01F6/92 ,  D02G3/48

Abstract: PURPOSE:To obtain polyester fibers for reinforcing rubber excellent in heat resistance in rubber, having higher strength than usual ones and well suppressed degradation when they are exposed to high temperature in the rubber for a long time. CONSTITUTION:The subject polyester for reinforcing rubber is incorporated with 0.05-10wt.% fluorine-based polymer and

公开(公告)号：JPH0625916A

公开(公告)日：1994-02-01

申请号：JP34524991

申请日：1991-12-26

Applicant: TORAY INDUSTRIES

Inventor： UCHIDA MINORU ,  MITSUYOSHI TAKEHIKO

IPC: B60R22/12 ,  C08G63/13 ,  C08G63/181 ,  D01F6/62 ,  D01F6/84

Abstract: PURPOSE:To provide a polyester fiber having excellent light-resistance and strength and useful for seat belt. CONSTITUTION:The polyester fiber for seat belt has a specific viscosity and a specific DEG content and is composed of a polyester produced by copolymerizing 0.1-35mol% (based on the total dicarboxylic acid component) of a naphthalenedicarboxylic acid component to a polyester composed mainly of ethylene terephthalate. The polyester fiber is made of a polyester copolymerized with a specific amount of naphthalenedicarboxylic acid component and having low DEG content and high viscosity. Since the fiber has unprecedentedly high light-resistance and strength, it is suitable for seat belt.

公开(公告)号：JPH01118616A

公开(公告)日：1989-05-11

申请号：JP27103087

申请日：1987-10-26

Applicant: TORAY INDUSTRIES

Inventor： UCHIDA MINORU ,  UCHIDA KAZUO ,  TAKAHASHI HIROSHI

IPC: C08G63/18 ,  C08G63/181 ,  C08G63/40 ,  C08G63/60 ,  C08G63/78 ,  D01F6/62 ,  D01F6/84 ,  D01F6/92

Abstract: PURPOSE:To obtain the subject fiber, consisting of ethylene terephthalate units, containing a specific long-chain alkyl group-containing ester-forming compound and having excellent color tone and friction characteristics and waxy feeling with durability. CONSTITUTION:The aimed fiber, having main recurring units of ethylene terephthalate and containing a long-chain alkyl group-containing ester-forming compound (e.g., 2-hexylsuccinic anhydride) selected from acid anhydrides, lactones and epoxides in an amount of 0.1-30mol.% based on an acid component constituting the polyester. Furthermore, the above-mentioned long-chain alkyl group-containing ester-forming compound is preferably added before completing polycondensing reaction in order to provide chemical bonds with the polyester component.