公开(公告)号：EP1043362A4

公开(公告)日：2002-05-08

申请号：EP99949330

申请日：1999-10-20

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA MASATOSHI ,  HONDA KEISUKE ,  TSUTSUMI KENICHI ,  KIMURA MASAHIRO

IPC: B32B27/12 ,  C08G63/82 ,  C08G63/84 ,  C08G63/85 ,  C08G63/87 ,  C08J5/18 ,  C08L67/02 ,  B32B27/36 ,  C08K3/00 ,  C08K13/02

CPC classification number: B32B27/10 ,  B32B5/022 ,  B32B15/09 ,  B32B27/12 ,  B32B27/18 ,  B32B27/36 ,  B32B2367/00 ,  B32B2439/70 ,  C08G63/82 ,  C08G63/826 ,  C08G63/84 ,  C08G63/85 ,  C08G63/87 ,  C08J5/18 ,  C08J2367/02 ,  Y10T428/31681 ,  Y10T428/31703

Abstract: A polyester composition which comprises a composite oxide (A) comprising titanium as an essential element and at least one metal element selected from among aluminum, zirconium, germanium, tin and silicon in an amount of 0.5 to 300 ppm in terms of titanium atom, and particles having an average particle diameter of 0.01 to 10 νm in an amount of 0.001 to 40 wt.%; a method for producing the same; and a film comprising the polyester composition. The present invention can be employed to provide a polyester composition which is excellent in molding processability and heat resistance and thus, in the production of a molded article such as a fiber, a film and a bottle, is free from problems such as staining of a mouthpiece, increase in filter pressure and yarn breaking. The film is suitable for packaging, is excellent in keeping good taste and in storing for a long period of time, and can be suitably used in fabricating an article for packaging, especially a laminate containing a substrate made of paper, non-woven fabric or metal and a container.

公开(公告)号：JP2003238673A

公开(公告)日：2003-08-27

申请号：JP2002041560

申请日：2002-02-19

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA MASATOSHI ,  TSUTSUMI KENICHI ,  HONDA KEISUKE

IPC: C08G63/85

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polyester having good color and excellent moldability without containing an antimony compound substantially. SOLUTION: This method for producing a polyester comprises polycondensation of a product that is obtained by an esterification reaction or an ester interchange reaction between an aromatic dicarboxylic acid or its ester formable derivative and a diol or its ester formable derivative, wherein the method comprises usage of a titanium complex as a polycondensation catalyst and addition of a dye as a color adjusting agent. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2002308969A

公开(公告)日：2002-10-23

申请号：JP2001113509

申请日：2001-04-12

Applicant: TORAY INDUSTRIES

Inventor： ICHIKAWA TOMOKO ,  HONDA KEISUKE ,  AOYAMA MASATOSHI

IPC: C08G63/78

Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a polyester with a high degree of polymerization in a shorter time than in the previously known production process, wherein a cyclic polyester oligomer is used for ring-opening polymerization. SOLUTION: This process for producing the polyester with the high degree of polymerization comprises blending the cyclic polyester oligomer with a polyester at a weight ratio of (0.01 to 0.9):1 and heating the blend at 200-320 deg.C for the ring-opening polymerization of the cyclic polyester oligomer.

公开(公告)号：JP2002265576A

公开(公告)日：2002-09-18

申请号：JP2001061901

申请日：2001-03-06

Applicant: TORAY INDUSTRIES

Inventor： ICHIKAWA TOMOKO ,  HONDA KEISUKE ,  AOYAMA MASATOSHI

IPC: C08G63/78

Abstract: PROBLEM TO BE SOLVED: To provide a method of producing a polyester having a high degree of polymerization which is more economical than the conventional method, in the ring opening polymerization using a cyclic polyester oligomer. SOLUTION: In the method of producing a polyester having a high degree of polymerization, the cyclic polyester oligomer is compounded with a polyester at a weight ratio of 1.5 to 9.5 and they are mixed and heated in the ring opening polymerization of the cyclic polyester oligomer.

公开(公告)号：JP2000109551A

公开(公告)日：2000-04-18

申请号：JP28420298

申请日：1998-10-06

Applicant: TORAY INDUSTRIES

Inventor： HONDA KEISUKE ,  AOYAMA MASATOSHI ,  TSUTSUMI KENICHI

IPC: C08G63/82 ,  C08G63/83 ,  C08G63/84

Abstract: PROBLEM TO BE SOLVED: To obtain a polymerization catalyst for polyesters excellent in moldability and processability, in which problems such as stain of spinneret, increase of filtering pressure and yarn breakage are solved in production of a molding product for fibers, films and bottles, and provide a method for producing a polyester using the catalyst. SOLUTION: A main metal element as a polycondensation catalyst is a binuelear oxide composed of aluminum and silicon and the molar ratio of Al:Si of the composition is (90:10) to (10:90), in a method for producing a polyester by polycondensing a product obtained by esterification or transesterification of an aromatic dicarboxylic acid or its ester-forming derivative with a diol or its ester-forming derivative.

公开(公告)号：JPH1149852A

公开(公告)日：1999-02-23

申请号：JP14749898

申请日：1998-05-28

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA MASATOSHI ,  TSUTSUMI KENICHI ,  UCHIDA MINORU

IPC: C08G63/181 ,  C08G63/84 ,  D01F6/62

Abstract: PROBLEM TO BE SOLVED: To obtain a polyester product excellent in molding workability and polymer color tone and useful for molding fiber, film, and bottle products by subjecting the products resulted from an esterification reaction with aromatic dicarboxylic acid and diol or the ester-forming derivatives thereof to polycondensation with an alkaline compound in the presence of aluminum compound as a catalyst. SOLUTION: This objective high molecular weight polyester is obtained by subjecting a low grade polymer [pref. poly(ethylene terephthalate)] resulted from esterification with aromatic dicarboxylic acid and diol to polycondensation with an alkaline compound (pref. such a compound as tetraethylammonium hydroxide containing 50 to 5,000 ppm of nitrogen based on the resultant polyester composition) in the presence of aluminum compound (pref. such a compound as aluminum hydroxide containing 5 to 500 ppm of aluminum atoms based on the resultant polyester compound) as a catalyst.

公开(公告)号：JPH08134332A

公开(公告)日：1996-05-28

申请号：JP28093094

申请日：1994-11-15

Applicant: TORAY INDUSTRIES

Inventor： KOJIMA HIROJI ,  AOYAMA MASATOSHI ,  SUZUKI MASARU

IPC: C08J5/18 ,  B32B27/20 ,  B32B27/36 ,  C08K3/34 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE: To obtain a polyester composition, containing a prescribed amount of specific aluminum silicate particles, excellent in runnability and abrasion resistance and suitable for uses, etc., of magnetic recording media. CONSTITUTION: This polyester composition contains 0.01-5wt.% aluminum silicate particles such as those, having 0.005-2.0μm volume-average particle diameter,

公开(公告)号：JPH08109317A

公开(公告)日：1996-04-30

申请号：JP24410794

申请日：1994-10-07

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA MASATOSHI ,  KOJIMA HIROJI ,  SUZUKI MASARU

IPC: C08J5/18 ,  B32B27/36 ,  C08K7/16 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE: To obtain a polyester composition suitable for e.g. magnetic recording media excellent in slipperiness and wear resistance, containing a specified am ount of organic polymer particles with a specific average diameter. CONSTITUTION: This polyester composition contains 0.01-2.0wt.% of organic polymer particles 0.005-0.1μm in average primary particle diameter and 0.05-1.5μm in average secondary particle diameter. It is preferable that the polyester be polyethylene 2,6-naphthalate, and the organic polymer particles 350 deg.C in thermal decomposition temperature, and

公开(公告)号：JPH0834906A

公开(公告)日：1996-02-06

申请号：JP17128394

申请日：1994-07-22

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA MASATOSHI ,  KAGAMI NOBUYUKI ,  SUZUKI MASARU

IPC: C08J5/18 ,  B32B27/36 ,  C08L67/00 ,  C08L67/02 ,  C09D5/23 ,  C09D7/12 ,  G11B5/73 ,  G11B5/733 ,  G11B5/704

Abstract: PURPOSE:To obtain the polyester film excellent in surface flatness, slipperiness and abrasion resistance, and useful for magnetic recording media, etc. CONSTITUTION:The polyester film contains 0.01-2.0wt.% of organic polymer particles A having an average diameter of 0.01-0.20mum and a particle diameter ratio (long diameter/short diameter) of 1.0-1.5, and 0.005-2.0wt.% of organic polymer particles B having an average particle diameter of 0.20-1.0mum which is larger by 0.05mum than that of the organic polymer particles A and having a particle diameter ratio of 1.0-1.5, wherein the ratio of the number of the organic polymer particles A to the whole particle number of the organic polymer particles A and B is >=15%.

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.