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公开(公告)号：JPH0532873A
公开(公告)日：1993-02-09
申请号：JP27445291
申请日：1991-07-26
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To provide the title compsn. which is molded into a film or fiber excellent in invariable slipperiness and resistance to shaving by compounding a thermoplastic polyester with org. polymer particles having both a soft part and a hard part. CONSTITUTION:The title compsn. is prepd. by compounding a thermoplastic polyester with org. polymer particles having both a soft part and a hard part, and the title film has a maximum-to-minimum particle diameter ratio of 1.1-5.0.
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公开(公告)号：JPH0532769A
公开(公告)日：1993-02-09
申请号：JP27445591
申请日：1991-07-26
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To produce the subject composition giving films, fibers, etc., excellent in slipping property, abrasion resistance and scratch resistance by adding aluminic acid compound-treated inorganic fine particles to the polymerization system before the completion of the polymerization and subsequently completing the polymerization when the polyester is produced. CONSTITUTION:When a thermoplastic polyester is produced, inorganic fine particles such as silica or titanium oxide particles treated with an aluminic acid compound such as sodium aluminate are added to the polymerization system before the completion of the polymerization, and the thereafter polymerization is completed to produce a thermoplastic polyester composition suitable for magnetic tapes, etc., which are repeatedly used in the states.
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公开(公告)号：JPH04180921A
公开(公告)日：1992-06-29
申请号：JP30856090
申请日：1990-11-16
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TOSHIHIRO , YOSHIDA MINORU , UEDA TOMOAKI
Abstract: PURPOSE:To produce a polyester which contains colloidal silica of an improved affinity and can give a fiber or film of excellent abrasion resistance by adding colloidal silica surface-treated with acrylic acid to the reaction system during the polycondensation of an aromatic dicarboxylic acid with a glycol. CONSTITUTION:A process for the production of a polyester mainly consisting of a polyester comprising a dicarboxylic acid based on an aromatic dicarboxylic acid or its esterifiable derivative and a glycol, desirably an alkylene terephthalate or an alkylene naphthalate, wherein colloidal silica at least part of whose surface is treated with a silane, titanium or like coupling agent (of a volume shape factor of 0.35-0.52 and a particle diameter of 0.01-5.0mmu) is added to the reaction system before the completion of the polycondensation reaction to obtain an abrasion-resistant polyester. The amount of addition is 0.01-30 pts.wt., particularly desirably 0.1-10 pts.wt. per 100 pts.wt. polyester.
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公开(公告)号：JPH047350A
公开(公告)日：1992-01-10
申请号：JP10710790
申请日：1990-04-23
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TOSHIHIRO , YOSHIDA MINORU , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a polyester composition which can be molded into a film, a fiber or the like improved in antistatic properties by dispersing inert inorganic particles subjected to a specified surface treatment in a polyester. CONSTITUTION:Inert inorganic particles having a negative xsi-potential value and a mean particle diameter of 10-3000mum and being surface-treated with 0.01-40 pts.wt. (per 100 pts.wt. inert inorganic particles) compound having at least one amino group and at least one sulfonic group and/or metal sulfonate group are dispersed in a polyester mainly consisting of an aromatic acid dicarboxylic acid and a glycol and mainly consisting of repeating units of an aromatic carboxylate to obtain an antistatic polyester composition containing 0.01-5.0 pts.wt. above compound. This polyester composition can exhibit its antistatic effect when molded into a fiber, a film or other molding, and is desirable especially as a magnetic tape film which is repeatedly used in a state of contact friction.
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公开(公告)号：JPH03287656A
公开(公告)日：1991-12-18
申请号：JP9001690
申请日：1990-04-04
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SASAKI TOSHIHIRO , UEDA TOMOAKI
Abstract: PURPOSE:To prepare the title compsn. giving an abrasion-resistant film in which a thermoplastic polyester shows an improved affinity with colloidal silica particles and from which the particles hardly fall off by compounding the polyester with specific colloidal silica particles. CONSTITUTION:The title compsn. is prepd. by compounding a thermoplastic polyester with colloidal silica particles of which a part or the whole of the surface is coated with a high-molecular compd. having the main repeating unit comprising vinylpyrrolidone [e.g. poly(vinylpyrrolidone].
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Patent Agency Ranking
公开(公告)号：JPH03172319A
公开(公告)日：1991-07-25
申请号：JP31260889
申请日：1989-11-30
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SAKAMOTO JUN , UEDA TOMOAKI
Abstract: PURPOSE:To obtain the subject polymer having excellent abrasion resistance, transportability and surface properties and suitable for base film of magnetic recording medium, film for electrical use, fiber, etc., by adding specific inert inorganic particles before polymerization. CONSTITUTION:(A) A dispersion is produced by dispersing (i) inert inorganic particles (e.g. aluminum oxide) exhibiting positive zeta-electric potential in pure water and having an average particle diameter of 10-3,000mmu and (ii) a glycol compound used as a raw material (e.g. ethylene glycol) in (iii) a polymeric compound having parameters expressed by formula (delta1 is solubility parameter of the polymeric compound; delta2 is solubility parameter of the polyester) and having acidic functional group on terminal and/or side chain. The objective polymer having a carboxyl terminal group content of >=20eq/t can be produced by polymerizing (B) an aromatic dicarboxylic acid and glycol after the addition of 0.01-5.0 pts.wt. of the dispersion A to the system based on 100 pts.wt. of the component B.
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公开(公告)号：JPH0388831A
公开(公告)日：1991-04-15
申请号：JP22661589
申请日：1989-08-31
Applicant: TORAY INDUSTRIES
Inventor： UEDA TOMOAKI , YOSHIDA MINORU , YOSHIKAWA MASATO
IPC: C08J5/18
Abstract: PURPOSE:To obtain ultraviolet rays-screening film suitable for packaging use or windowing use, etc., having excellent transparency and stiffness containing cerium-containing zirconia granules. CONSTITUTION:(A) Film composed of polyolefin or polyester, etc., is mixed with (B) cerium-containing zirconia granules containing 1-50mol%, preferably 2-30mol% cerium and having 0.01-5mu, preferably 0.02-2 mu obtained by hydrothermal crystallization method in which base such as ammonia water is added to mixed aqueous solution of salts of zirconium and cerium and made to neutralization and coprecipitation, then crystallized with heat in a pressure-resistant vessel to afford the aimed ultraviolet rays-screening film. Contained amount of said particles in the film is 1-50wt.%, preferably 1-20wt.% and inner haze of the film of 203mu thickness is
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公开(公告)号：JPH0370768A
公开(公告)日：1991-03-26
申请号：JP20729789
申请日：1989-08-09
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , YOSHIDA MINORU , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a polyester composition giving a molded article having excellent slipperiness, abrasion resistance, etc., and suitable for fiber, film, etc., by using composite inert particles having a specific shape as a component. CONSTITUTION:The objective polyester composition is produced by compounding a polyester with 0.005-10wt.% (preferably 0.01-3wt.%) of composite inert particles having an average particle diameter of 0.05-5mum (preferably 0.1-2mum) and produced e.g. by coating a core particle charged with positive or negative charge (e.g. silica, titanium oxide or calcium carbonate) with fine particles (e.g. silica or alumina) charged with opposite charge and having an average particle diameter corresponding to 1/(1,000-10) [preferably 1/(500-20)] of the diameter of the core particle. The ratio of the coating thickness to the diameter of the core particle is 1/1000-10, preferably 1/500-1.
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69.发明专利
公开(公告)号：JPH0280455A
公开(公告)日：1990-03-20
申请号：JP23433188
申请日：1988-09-19
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SAKAMOTO JUN , UEDA TOMOAKI
Abstract: PURPOSE:To obtain the title composition useful for obtaining a film or a fiber excellent in lubricity, abrasion resistance and transparency by homogeneously dispersing spherical kaolinite particles in a thermoplastic polyester. CONSTITUTION:Desirably, 0.005-10wt.%, based on the polyester, porous synthetic spherical kaolinite particles having a mean particle diameter of, desirably, 0.01-5.0mum and a volume shape factor as defined by the equation (wherein V is the volume of a single particle; and D is the sphere equivalent diameter of a particle)
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公开(公告)号：JPH0238444A
公开(公告)日：1990-02-07
申请号：JP18938988
申请日：1988-07-28
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SAKAMOTO JUN , UEDA TOMOAKI
Abstract: PURPOSE:To obtain the title composition which can give a film or a fiber improved in lubricity and abrasion resistance by adding alumina particles to a thermoplastic polyester. CONSTITUTION:The title composition is obtained by adding 0.005-10wt.% alumina particles (A) which is desirably slurried in a glycol (a), has a mean particle diameter of 0.01-5.0mum and a volume shape factor phi of the formula (wherein v is the volume of a single particle, and D is the equivalent diameter of an equal volume particle)
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