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公开(公告)号：JPH0453866A
公开(公告)日：1992-02-21
申请号：JP16311290
申请日：1990-06-21
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SASAKI TOSHIHIRO , UEDA TOMOAKI
Abstract: PURPOSE:To obtain the title composition suitable for obtaining film or fiber excellent in abrasion resistance and desirable especially for a magnetic tape repeatedly used under friction by mixing a thermoplastic polyester with amorphous alumina particles. CONSTITUTION:Amorphous alumina particles (desirably particles having a secondary particle diameter of 5.0mum or below and comprising primary particles of a specific surface area of 10m /g or above) are added to a thermoplastic polyester (desirably one based on polyethylene terephthalate). The amount of the amorphous alumina particles added is desirably 0.01-30 pts.wt. per 100 pts.wt. thermoplastic polyester. The obtained polyester composition can be molded into film or fiber of good abrasion resistance and can desirably be used for a magnetic tape repeatedly used under friction.
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公开(公告)号：JPH03281565A
公开(公告)日：1991-12-12
申请号：JP8399090
申请日：1990-03-29
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SAKAMOTO JUN , UEDA TOMOAKI
Abstract: PURPOSE:To provide a thermoplastic polyester composition having good compatibility between the polyester and the calcium carbonate particles, having excellent abrasion resistance and suitable as films, fibers, especially magnetic tapes, by compounding the calcium carbonate particles subjected to a specific surface treatment. CONSTITUTION:A thermoplastic polyester preferably mainly comprising polyethylene terephthalate is compounded with particles which are prepared by coating the surfaces of calcium carbonate particles with calcium phosphate and subsequently with an acrylic acid-acrylate ester copolymer or a partial metal salt or ammonium salt thereof.
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公开(公告)号：JPH0376813A
公开(公告)日：1991-04-02
申请号：JP21098189
申请日：1989-08-16
Applicant: TORAY INDUSTRIES
Inventor： HIGUCHI MICHINORI , MITSUYOSHI TAKEHIKO , YOSHIDA MINORU
Abstract: PURPOSE:To obtain the subject filament having excellent abrasion resistance and suitable for fishing net, fishing line, brush, belt cloth, filter, paper-making net, etc., by using a specific amount of alumina particles having specific particle diameter as a filler. CONSTITUTION:The objective polyester monofilament contains 0.01-3.0 pts.wt., preferably 0.05-2.0 pts.wt. (based on 100 pts.wt. of polyester) of alumina particles having an average particle diameter of 5-5,000mmu, preferably 5-2,000mmu.
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公开(公告)号：JPH0343447A
公开(公告)日：1991-02-25
申请号：JP17886289
申请日：1989-07-10
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SASAKI TOSHIHIRO , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a polyester composition, having the surface with homogenous fine unevennesses, suitable for providing films and fibers excellent in abrasion resistance and useful as magnetic tapes, etc., by blending specific aluminum oxide particles containing a sulfur compound with a polyester. CONSTITUTION:A polyester composition obtained by blending 0.05-10wt.%, preferably 0.1-5wt.% aluminum oxide particles, containing a sulfur compound in an amount of 0.01-5wt.%, preferably 0.01-2wt.% expressed in terms of sulfur and having 5-5000mmu average primary particle diameter with a polyester (e.g. polyethylene terephthalate).
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公开(公告)号：JPH0317123A
公开(公告)日：1991-01-25
申请号：JP15107989
申请日：1989-06-14
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TOSHIHIRO , YOSHIDA MINORU , UEDA TOMOAKI
Abstract: PURPOSE:To obtain the title polyester useful for e.g. films free from coarse asperities with excellent surface characteristics by adding, in the form of a slurry, a phosphorus compound, alkali metal compound and alumina particles to the polymerization system prior to completion of the polymerization. CONSTITUTION:The objective polyester can be obtained by adding, in the form of a slurry, 0.01-40 pts.wt., based on 100 pts.wt. of the alumina, of (A) a combination of a phosphorus compound and an alkali metal compound and/or (B) an alkali metal salt of a phosphorus compound and (C) 0.01-3.0 pts.wt., based on 100 pts.wt. of the final polyester, of alumina particles 5-500mum in average size to the polymerization system prior to completion of the polymerization.
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Patent Agency Ranking
公开(公告)号：JPS63142027A
公开(公告)日：1988-06-14
申请号：JP28955486
申请日：1986-12-04
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SAKAMOTO JUN , UEDA TOMOAKI
Abstract: PURPOSE:To obtain the titled polymer having excellent slipperiness and transpar ency, by stirring particles having specific average particle diameter, containing a fluorine compound with a reduction ratio at high temperature, with inorganic fine particles in a solvent, separating the inorganic fine particles to give slurry comprising the particles and adding the slurry to linear polyester in any stage of polymerization. CONSTITUTION:(A) Particles which have 0.02-5.0mu average particle diameter of primary particles and contain a fluorine compound (e.g. calcium fluoride, etc.) of group IIA of the periodic table of element, showing
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公开(公告)号：JP2019020500A
公开(公告)日：2019-02-07
申请号：JP2017136806
申请日：2017-07-13
Applicant: TORAY INDUSTRIES
Inventor： KONO SACHIKAZU , TABATA HISANORI , YOSHIDA MINORU
Abstract: 【課題】本発明は、目的とする光学特性を有し、かつ色調むらの発生や表面品位の低下を軽減したフィルムを巻いたフィルムロール及びその製造方法を提供することをその課題とする。【解決手段】エリプソメーターにより測定した、C領域とE領域における波長420nmの屈折率のばらつき(dCE420n)が、0.001以上0.150以下であることを特徴とする、フィルムロール。C領域:フィルムを二等分する長手方向と平行な直線上の任意の点(C1)を重心とする、50mm(長手方向)×50mm(幅方向)の正方形領域E領域:C1から幅方向と平行に引いた直線上にあり、かつ任意に選択した一方の幅方向端部との距離が500mmである点(E1)を重心とする、50mm(長手方向)×50mm(幅方向)の正方形領域【選択図】図1
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公开(公告)号：JP2003096280A
公开(公告)日：2003-04-03
申请号：JP2001293438
申请日：2001-09-26
Applicant: TORAY INDUSTRIES
Inventor： MORIMOTO TSUTOMU , HONMA YOSHIHIRO , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition which is reduced in a polymer gel compound generated upon melt extrusion, and which has excellent heat resistance and film forming property, and also to provide a film. SOLUTION: An alkali metal amount: Am (mol/ton), an alkaline earth metal amount: Em (mol/ton), an a phosphor element amount: Pm (mol/ton), contained in a polyester, are controlled so as to satisfy the relation: 5
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公开(公告)号：JP2002348361A
公开(公告)日：2002-12-04
申请号：JP2002074643
申请日：2002-03-18
Applicant: TORAY INDUSTRIES
Inventor： HONMA YOSHIHIRO , MORIMOTO TSUTOMU , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition hardly suffering from coarse projection and surface defects and excellent in oligomer deposition-inhibiting properties, and a polyester film. SOLUTION: The polyester composition contains in the molecule a constituting unit represented by chemical formula (9) (wherein R41 -R44 are each H or a hydrocarbyl group having a carbon number in the range of 1-20, provided that in the case of a hydrocarbyl group at least one hydrocarbyl group has at least 6 carbons). Preferably, the content of the above constituting unit is caused to be in the range of 0.003-2 mole % based on the mole number of constituting portions derived from the dicarboxylic acid component of the polyester. The polyester film is also provided.
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公开(公告)号：JP2002337297A
公开(公告)日：2002-11-27
申请号：JP2001147468
申请日：2001-05-17
Applicant: TORAY INDUSTRIES
Inventor： MORITA REIKO , YAMANE NOBUHISA , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film for molding excellent not only in environmental properties but also in moldability and adhesiveness. SOLUTION: The laminated polyester film for molding is constituted by laminating a resin layer (B-layer) with a quantity of heat of fusion of 20 J/g or less on at least the single surface of a polyester resin layer (A-layer) consisting of at least two kinds of glycol components selected from 2-4C glycol components and a dicarboxylic acid component.
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