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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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公开(公告)号：JPS62148521A
公开(公告)日：1987-07-02
申请号：JP28947885
申请日：1985-12-24
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , SUZUKI MASARU , OKASAKA HIDESADA
IPC: C08G63/183 , C08G63/78
Abstract: PURPOSE:To obtain a polyester, having improved surface characteristic, etc., and suitable for fibers, etc., by blending terephthalic acid (derivative) with an alkali (earth) metal compound and silicone compound while heating and adding the resultant blend to synthetic reaction system of the polyester. CONSTITUTION:(A) Terephthalic acid (derivative) is mixed with ethylene glycol in a molar amount of, e.g. 20 times or more based on the component (A), and then blended with (B) an alkali (earth) metal compound, e.g. lithium acetate, etc., in a molar amount of 1-4 times based on the component (A) and (C) a silicone compound, e.g. dimethyldichlorosilane, etc., in an amount of 0.1-3wt% based on the component (B) and the resultant blend is heat-treated while stirring at 100-200 deg.C to give an additive, which is added to a synthetic reaction system of a polyester before starting polycondensation reaction to give preferably 0.005-0.5wt%, expressed in terms of the metal component in the component (B). The polycondensation reaction is then carried out to afford the aimed polyester.
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公开(公告)号：JPS6139968B2
公开(公告)日：1986-09-06
申请号：JP13780078
申请日：1978-11-10
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , MINAMI TOMOYUKI
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公开(公告)号：JPS5946254B2
公开(公告)日：1984-11-12
申请号：JP11939676
申请日：1976-10-06
Applicant: Toray Industries
Inventor： ODAJIMA AKIO , SUZUKI MASARU , MINAMI TOMOYUKI
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Patent Agency Ranking
公开(公告)号：JPS559606A
公开(公告)日：1980-01-23
申请号：JP8088078
申请日：1978-07-05
Applicant: TORAY INDUSTRIES
Inventor： MINAMI TOMOYUKI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PURPOSE:To obtain a modified polyester useful for microfilm, having improved slipperiness and low cloudiness, by reacting terephthalic acid with an ethylene glycol slurry comprising uniformly dispersed fine inert inorganic particles. CONSTITUTION:(A) Inert inorganic particles are dispersed in ethylene glycol by mechanical stirring to form a slurry which gives a residue
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公开(公告)号：JPS54124055A
公开(公告)日：1979-09-26
申请号：JP3110978
申请日：1978-03-20
Applicant: TORAY INDUSTRIES
Inventor： MINAMI TOMOYUKI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PURPOSE:To prepare a low friction polyester composition giving a film having excellent slipperiness, by adding a specific amount of finely powdered polytetrafluoroethylene, etc. to the polyester. CONSTITUTION:A polyester consisting mainly of terephthalic acid as the acid component, is compounded with 0.01-3 wt.%, preferably 0.03-2 wt.% of finely powdered polytetrafluoroethylene and/or a tetrafluoroethylene-hexafluoropropylene copolymer having particle size of
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公开(公告)号：JP2000302891A
公开(公告)日：2000-10-31
申请号：JP11344399
申请日：1999-04-21
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , SHIMIZU YUZO , MATSUOKA HIROSHI
Abstract: PROBLEM TO BE SOLVED: To obtain a composition for a film excellent in laminating properties and adhesion properties to a steel plate after retorted by incorporating silica particles containing a specific amount of a glycol component into a polyester composed mainly of an aromatic dicarboxylic acid and a glycol. SOLUTION: There is provided a composition comprising a polyester such as a polyethylene terephthalate, a polyethylene-2,6-naphthalene dicarboxylate or the like containing 0.02-1 wt.% of silica particles, which is obtained by polymerizing an aromatic dicarboxylic acid, a glycol component, a catalyst and silica particles having an average particle size of 0.01-3.0 μm and containing 0.05-15 wt.% of a glycol component. The composition is subjected to melt extrusion to form a film, which is stretched sequentially to give a biaxially stretched film having a thickness of 5-100 μm. The silica containing a glycol component is obtained by a heat treatment at150-200 deg.C of a silica powder, if necessary, surface-treated with a surfactant or the like, in a 2-20 wt.% slurry in ethylene glycol, or the like.
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公开(公告)号：JP2000281883A
公开(公告)日：2000-10-10
申请号：JP8744999
申请日：1999-03-30
Applicant: TORAY INDUSTRIES
Inventor： UEMATSU KIMITAKE , ODAJIMA AKIO , NAKAWA TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition having excellent slipperiness and wear resistance in molding to a biaxially drawn film. SOLUTION: This polyester composition is characterized by including 0.05-10 wt.% of crosslinked organic granules having 0.1-2.0 μm weight average particle diameter (Dw) and 1.10-1.40 a ratio of Dw to a number average particle diameter (Dn), as (Dw/Dn).
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公开(公告)号：JPH09118813A
公开(公告)日：1997-05-06
申请号：JP22191696
申请日：1996-07-16
Applicant: TORAY INDUSTRIES
Inventor： SAEKI TOMOJI , ODAJIMA AKIO , SUZUKI MASARU
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition containing crosslinked polystyrene particles having a specific pyrolysis temperature and a specific porosity, excellent in slipperiness, free from trouble such as clogging in a molding machine and yarn breakage or film breakage and suitable for magnetic tapes. SOLUTION: This composition contains (A) a polyester composed of a difunctional acid component consisting mainly of an aromatic dicarboxylic acid, preferably 2,6-naphthalinedicarboxylic acid unit and at least one kind of glycol component and (B) crosslinked polystyrene particles having >=380 deg.C pyrolysis temperature,
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