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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
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.
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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
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 ).
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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.
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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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Patent Agency Ranking
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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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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