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公开(公告)号：JPH04309555A
公开(公告)日：1992-11-02
申请号：JP10026691
申请日：1991-04-06
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , SAEKI TOMOJI , SUZUKI MASARU
IPC: C08G63/181 , C08G63/78 , C08J5/18 , C08L67/00 , C08L67/02
Abstract: PURPOSE:To prepare the title compsn. which is molded into a film or fiber excellent in slipperiness, resistance to shaving, and electro-magnetic conversion characteristics by incorporating soft spherical particles having a low strength and a uniform particle size distribution into the compsn. CONSTITUTION:The title compsn. contains spherical org. polymer particles which exhibit a strength (S10) satisfying the formula: 0 when deformed 10% and have a relative standard deviation expressed by the formula relating to the equivalent diameter of equal area circle of the particle of 0.5 or lower.
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公开(公告)号：JPH04309554A
公开(公告)日：1992-11-02
申请号：JP10026591
申请日：1991-04-06
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , SAEKI TOMOJI , SUZUKI MASARU
Abstract: PURPOSE:To prepare the title compsn. which is molded into a film or fiber excellent in slipperiness and resistance to shaving by incorporating soft particles having a low strength into the compsn. CONSTITUTION:The title compsn. contains org. polymer particles having a strength (S10) satisfying the formula: 0 when deformed 10%.
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公开(公告)号：JPH04309551A
公开(公告)日：1992-11-02
申请号：JP7520091
申请日：1991-04-08
Applicant: TORAY INDUSTRIES
Inventor： KIMURA MASAHIRO , SAEKI TOMOJI , SUZUKI MASARU
Abstract: PURPOSE:To improve the affinity of particles to a polyester and thus prepare the title compsn. which is molded into a film or fiber contg. few voids and excellent in slipperiness and resistance to shaving by specifically treating the surfaces of the particles. CONSTITUTION:The title compsn. contains 0.001-10.0wt.% inorg. particles having a mean diameter of 0. 001-3.0mum and being treated with an isocyanate compd. and a water-sol. polyester compd. each in an amt. of 0.0001-10.0wt.% of the particles.
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公开(公告)号：JPH03250043A
公开(公告)日：1991-11-07
申请号：JP4876290
申请日：1990-02-27
Applicant: TORAY INDUSTRIES
Inventor： SAEKI TOMOJI , SUZUKI MASARU , FUJITA AKIHARU
Abstract: PURPOSE:To obtain the title composition excellent in slidability, surface evenness and abrasion resistance by a process for producing a polyester containing spherical inorganic particles, wherein a slurry comprising specified inorganic particles and a specified liquid is added to the polyester in a vented molding machine. CONSTITUTION:A process for producing a polyester (e.g. polyurethane terephthalate) containing spherical inorganic particles, wherein a slurry formed from spherical inorganic particles (e.g. titanium oxide) having a mean particle diameter of 0.01-5mum and a volume shape factor of 0.40-pi/6 and water and/or an organic compound of a b.p. of 200 deg.C or below (e.g. ethanol) is added to the polyester in a vented molding machine.
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公开(公告)号：JPH03210339A
公开(公告)日：1991-09-13
申请号：JP521590
申请日：1990-01-12
Applicant: TORAY INDUSTRIES
Inventor： OKAZAKI IWAO , ABE KOICHI , SAEKI TOMOJI
Abstract: PURPOSE:To produce a biaxially oriented film mainly comprising a thermoplastic resin and having an excellent resistance to scratch and dubbing by compounding the resin with specific crosslinked polymer particles and forming the resulting compsn. into a film. CONSTITUTION:A biaxially oriented film mainly comprising a thermoplastic resin (e.g. polyethylene terephthalate) is obtained by compounding the resin with 0.5-20wt.% crosslinked polymer particles having functional groups (e.g. particles of a sodium carboxylate group-contg. styrene-divinyl benzene copolymer) and a mean particle diameter of 0.2-5 times the thickness of the film, and forming the resulting compsn. into a film with a thickness of 0.01-3mum.
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Patent Agency Ranking
公开(公告)号：JPH02206645A
公开(公告)日：1990-08-16
申请号：JP2626689
申请日：1989-02-03
Applicant: TORAY INDUSTRIES
Inventor： SAEKI TOMOJI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PURPOSE:To obtain a polyester composition having excellent smoothness, readily slipping properties, transparency, abrasion resistance and electrical characteristic, good workability in molding and suitable for photoengraving film by blending a Polyester with organic high polymer fine granules coated with aluminum oxide or water-containing aluminum oxide. CONSTITUTION:The aimed composition obtained by blending a polyester composed of a bifunctional acid component (e.g. terephthalic acid or 2,6-naphthalene dicarboxylic acid) consisting essentially of an aromatic dicarboxylic acid and one or more glycol components (e.g. ethylene glycol) with organic high polymer granules [e.g. (crosslinked) polystyrene] coated with aluminum oxide or water- containing aluminum oxide and having 0.01-5mum, preferably 0.05-5mum average granule size at an amount of 0.001-10wt.%, preferably 0.01-1wt.%.
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公开(公告)号：JPH01304152A
公开(公告)日：1989-12-07
申请号：JP13475588
申请日：1988-05-31
Applicant: TORAY INDUSTRIES
Inventor： SAEKI TOMOJI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PURPOSE:To obtain a polyester composition suitable for, e.g., a film excellent in easy slidability and transparency by adding crosslinked PS particles having a specified heat decomposition temperature and inert inorganic particles to a polyester. CONSTITUTION:Crosslinked PS particles of a heat decomposition temperature >=380 deg.C and a mean particle diameter of 0.01-5mum and inert inorganic particles (e.g., wet process silica) of a mean particle diameter of 0.01-5mum are added to a polyester comprising a difunctional acid component based on an aromatic dicarboxylic acid (e.g., dimethyl terephthalate) and at least one glycol component (e.g., ethylene glycol). A polyester composition suitable for, e.g., a film excellent in easy slidability and transparency can be obtained.
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公开(公告)号：JPH01240558A
公开(公告)日：1989-09-26
申请号：JP6699688
申请日：1988-03-18
Applicant: TORAY INDUSTRIES
Inventor： SAEKI TOMOJI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PURPOSE:To obtain a polyester composition having excellent slipperiness and transparency and suitable for photographic use, plate-making, magnetic recording tape, etc., by compounding crosslinked polystyrene particles having specific heat-decomposition temperature and void ratio. CONSTITUTION:A polyester composed of a difunctional acid component composed mainly of an aromatic dicarboxylic acid (e.g., terephthalic acid) and one or more glycol components (e.g., ethylene glycol) is compounded with crosslinked polystyrene having a heat-decomposition temperature of >=380 deg.C, preferably >=410 deg.C, a void ratio of 40-95%, preferably 50-80% and an average particle diameter of 0.01-5mum, preferably 0.05-2mum.
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公开(公告)号：JPH01236267A
公开(公告)日：1989-09-21
申请号：JP6420688
申请日：1988-03-16
Applicant: TORAY INDUSTRIES
Inventor： SAEKI TOMOJI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PURPOSE:To obtain a polyester composition improved in the balance between easy slidability and transparency, by adding specified crosslinked particles to a polyester. CONSTITUTION:12wt.% pure divinylbenzene is added to styrene, and the mixture is polymerized to obtain crosslinked PS particles (B) of a heat decomposition temperature (10% weight loss) according to a thermobalance >=380 deg.C, a mean particle diameter of 0.01-5mum and a volume shape factor of 0.35-0.52. 0.001-10wt.% component B is added to a polyester comprising (A) a bifunctional acid component based on an aromatic dicarboxylic acid (esterifiable derivative) and at least one glycol component.
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公开(公告)号：JPS6416860A
公开(公告)日：1989-01-20
申请号：JP17343487
申请日：1987-07-10
Applicant: TORAY INDUSTRIES
Inventor： SAEKI TOMOJI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PURPOSE:To produce the title composition with the particles of high heat resistance and good dispersibility, excellent flatness, easy slippage, transparency, abrasion and operability by adding silica-coated fine particles of organic polymer to polyester. CONSTITUTION:A sodium silicate solution is added to an aqueous alkali solution in which fine particles of organic high polymer (polystyrene or crosslinked polystyrene particles are preferred) are dispersed and the sodium silicate is hydrolyzed with sulfuric acid under heating to give fine particles of an organic high polymer coated with silica, having particle sizes of 0.01-5mum, preferably 0.05-2mum. The fine particles are added to a polyester prepared from the difunctional acid component mainly consisting of an aromatic dicarboxylic acid and the glycol component in an amount of 0.01-10wt.%, preferably 0.05-2wt.% in the form of a slurry before the start of polymerization.
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