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公开(公告)号：JPH05202274A
公开(公告)日：1993-08-10
申请号：JP1103292
申请日：1992-01-24
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To obtain the title compsn. useful for preparing an abrasion-resistant film for a magnetic recording medium, etc., by incorporating specific aluminum oxide particles into the compsn. CONSTITUTION:The title compsn. is prepd. by incorporating theta-aluminum oxide particles, pref. having a specific surface area, as a measure of the primary particle size, of 10m /g or higher, still pref. 50m /g or higher, and a secondary particle size of 0.01-2.0mum, still pref. 0.01-0.5mum, into the compsn.
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公开(公告)号：JPH05171017A
公开(公告)日：1993-07-09
申请号：JP34381891
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 slipperiness, abrasion resistance, and scratch resistance by compounding a specific polyester, a specific particulate copolymer, and a specific particulate zirconium oxide. CONSTITUTION:The title compsn. comprises a polyester prepd. from a dicarboxylic acid component mainly comprising an arom. dicarboxylic acid and a glycol component (e.g. polyethylene terephthalate), a particulate divinylbenzene-ethylvinylbenzene copolymer having a mean particle diameter of 0.01-5mum, and a particulate zirconium oxide having a mean particle diameter of 0.005-3mum.
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公开(公告)号：JPH05156139A
公开(公告)日：1993-06-22
申请号：JP32474491
申请日：1991-12-09
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To provide a polyester compsn. which is excellent in electrostatic castability and abrasion resistance and gives a molded article having uniform heights of projections. CONSTITUTION:The objective compsn. comprises a thermoplastic polyester having a specific resistance in a molten state of 5X10 to 5X10 OMEGA.cm and zirconium oxide particles having a specific surface area by the B.E.T. method of 10m /g.
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公开(公告)号：JPH0586271A
公开(公告)日：1993-04-06
申请号：JP24925591
申请日：1991-09-27
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To obtain the subject thermoplastic polyester composition giving a molded article excellent in smoothness, slipperiness, shaving resistance and scratch resistance. CONSTITUTION:The polyester resin composition is compounded with (A) silica powder having >=2 D1/D2 which is the ratio of a particle size (D1mmu) measured by dynamic light scattering to one (D2mmu) measured by nitrogen gas absorption, and straight or branched shape of 60-600mmu D1 and has a thickness of 41-100mmu diameter and (B) spherical fine particles of an organic polymer (e.g. butyl acrylate divinyl benzene copolymer, etc.) having 1.1 ) of 10% deformed strength (S10),
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公开(公告)号：JPH0586270A
公开(公告)日：1993-04-06
申请号：JP24923991
申请日：1991-09-27
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To obtain the subject polyester composition giving a molded article excellent in smoothness, slipperiness, shaving resistance, scratch resistance and electromagnetic transforming characteristics. CONSTITUTION:The polyester resin composition is compounded with (A) silica powder having >=2 D1/D2 which is the ratio of a particle size (D1mmu) measured by dynamic light scattering to one (D2mmu) measured by nitrogen gas absorption, and straight or branched shape of 60-600mmu, D1 and has a thickness of 41-100mmu diameter and (B) spherical fine particles of an organic polymer (e.g. butyl acrylate divinyl benzene copolymer, etc.), having 0 ) of 10% deformed strength (S10) and
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Patent Agency Ranking
公开(公告)号：JPH0570672A
公开(公告)日：1993-03-23
申请号：JP23515891
申请日：1991-09-13
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To provide the subject composition comprising silica particles having a specific average particle diameter and specific organic polymer particles and permitting to produce films or fibers having excellent sliding property, crack resistance and scratch resistance. CONSTITUTION:The objective composition comprising (A) silica particles having a D1/D2 ratio of >=2 between a particle diameter (D1mmu) measured by a dynamic light-scattering method and a particle diameter (D2mmu) measured by a nitrogen gas adsorption method, having the D1 of 60-600mmu, having a thickness of 41-100mmu on the observation using an electron microscope, and having a linear or branched shape, and (B) organic polymer particles such as (crosslinked) PS particles, benzoguanamine.formaldehyde resin particles, silicone resin particles, or polytetrafluoroethylene particles having a strength (S10) satisfied with an inequality 0 ) when the particles are deformed in a deformation rate of 10%.
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公开(公告)号：JPH0517674A
公开(公告)日：1993-01-26
申请号：JP26680191
申请日：1991-07-16
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To obtain a polyester composition which can give film or fibers excellent in abrasion resistance. CONSTITUTION:A thermoplastic polyester composition which consists of zirconium oxide particles having a specific surface, as determined by the B.E.T method, of at least 10m /g and a thermoplastic polyester having a terminal carboxyl group content of 10-100 equivalent per 10 g.
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公开(公告)号：JPH0455464A
公开(公告)日：1992-02-24
申请号：JP16746490
申请日：1990-06-25
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SAKAMOTO JUN , UEDA TOMOAKI
Abstract: PURPOSE:To obtain the title composition capable of obtaining fibers or films of excellent travelability and wear resistance, esp. suitable for magnetic tapes by incorporating a thermoplastic polyester with spherical vaterite-type calcium carbonate particles. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100 pts. wt. of a thermoplastic polyester made up of (1) a carboxylic acid component predominant in an aromatic dicarboxylic acid and (2) a glycol component predominant in an aliphatic glycol with (B) 0.01 - 10 pts. wt. of vaterite- type calcium carbonate having >= 30 m /g in the specific surface area determined by the BET adsorption technique, 0.01 - 5mum in mean particle diameter and 0.3 - 0.52 in the view factor (f) of the equation (V is particle volume mum ; D is maximal diameter mum of the projected area of particle), prepared by blowing carbon dioxide in calcium hydroxide in an alcoholic solvent to once convert into an amorphous gelled product, which is then put to regulation for particle shape, particle size distribution, and particle diameter, etc.
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公开(公告)号：JP2002355888A
公开(公告)日：2002-12-10
申请号：JP2001162020
申请日：2001-05-30
Applicant: TORAY INDUSTRIES
Inventor： HASHIMOTO KOKICHI , MATSUI RYOSUKE , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a biaxially stretched polyester film for molding excellent in environmental properties, dimensional stability, printability and moldability. SOLUTION: The biaxially stretched polyester film for molding is formed from a polyester film comprising a polyester containing an ethylene terephthalate unit and/or an ethylene naphthalate unit as a main constituent. The melting point of this polyester film is not less than 245 deg.C and the stress at the time of 200%-stretching at 80 deg.C and heat shrinkage factor thereof are specified.
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公开(公告)号：JP2002337225A
公开(公告)日：2002-11-27
申请号：JP2001147467
申请日：2001-05-17
Applicant: TORAY INDUSTRIES
Inventor： HASHIMOTO KOKICHI , TAKAHASHI KOZO , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a biaxially stretched polyester film for molding excellent in environmental properties, dimensional stability, printability and moldability. SOLUTION: In the biaxially stretched polyester film for molding comprising a polyester containing an ethylene terephthalate unit and/or an ethylene naphthalate unit as a main constituent component, the melting point of the polyester film is not less than 245 deg.C, and the stress (F200) at the time of 200%- elongation at 150 deg.C of the polyester film and the heat shrinkage factor (SR) at 150 deg.C thereof are specified.
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