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公开(公告)号：JPH06145488A
公开(公告)日：1994-05-24
申请号：JP30135692
申请日：1992-11-11
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , SUZUKI MASARU , OSHIMA KATSUNORI
IPC: B32B27/36 , C08G63/181 , C08J5/18 , C08L67/00 , C08L67/02
Abstract: PURPOSE:To provide a polyester composition giving a film having remarkably improved abrasion resistance and causing little damage to magnetic surface in high-speed transportation of the film. CONSTITUTION:The polyester is composed of an aromatic dicarboxylic acid and a glycol as main constituent components, preferably composed of an alkylene terephthalate or an alkylene naphthalate as a main constituent component and contains 0.005-10wt.% (preferably 0.01-5wt.%) of polymer particles having an average particle diameter 0.01-5mum (preferably 0.03-1mum) and composed of a polyester resin composed of a polyhydric alcohol and a polybasic acid, wherein at least one of the alcohol and acid is a >=3-valent compound. The polyhydric alcohol is preferably ethylene glycol, glycerol, trimethylolethane or pentaerythritol and the polybasic acid is preferably terephthalic acid, phthalic acid, 2,6-naphthalenedicarboxylic acid, succinic acid, trimellitic acid or pyromellitic acid.
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公开(公告)号：JPH06107916A
公开(公告)日：1994-04-19
申请号：JP25687892
申请日：1992-09-25
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , SUZUKI MASARU , OSHIMA KATSUNORI
Abstract: PURPOSE:To provide a polyester composition containing inert particles surface- treated with a specific phosphorus compound, and capable of producing films excellent in abrasion resistance and scratch resistance and suitably used for magnetic recording media, etc. CONSTITUTION:The polyester composition is produced by adding or kneading (B) 0.01-10wt.% of inert particles (preferably zirconium oxide or aluminum oxide) treated with 0.01-20wt.% of a phosphorus compound (preferably carboxyethylmethylphosphinic acid) of the formula (R1 is hydrocarbon group; l, m, n are integer, but 2l+m=4, and n is >=1; q is natural number) (preferably carboxyethylmethylphosphinic acid) and having an average particle diameter of 0.005-2mum to the polymerization reaction system of (A) a thermoplastic polyester, preferably polyethylene terephthalate or polyethylene-2,6-naphthalene dicarboxylate, or with the melted product of the component A. And the film comprises the composition.
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公开(公告)号：JPH0656975A
公开(公告)日：1994-03-01
申请号：JP21168492
申请日：1992-08-07
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , OKASAKA HIDESADA , OSHIMA KATSUNORI
IPC: C08G63/189 , C08G63/181 , C08G63/78 , C08G63/85
Abstract: PURPOSE:To obtain at good productivity the polyethylene naphthalate composition which can give moldings reduced in the formation of streaky defects on a film surface or reduced in the formation of yarn breaks and having good durability by continuously polycondensing bis(hydroxyethyl) naphthalate. CONSTITUTION:Bis(hydroxyethyl) naphthalate is continuously polycondensed to obtain the polyethylene naphthalate composition which is a polyester mainly consisting of repeating ethylene naphthalate units, has a terminal carboxyl contentretion of 40 eq./10 g or below and diethylene glycol content of 1.3wt.% or below. When the terminal carboxyl concentration is above 40eq./10 g, the effect of reducing the formation of streaky defects during film formation and the formation of yarn breaks during spinning is not sufficient. When the ethylene glycol content is above 1.3wt.%, the effect of reducing the formation of streaky defects during film formation and the formation of yarn breaks during spinning is not sufficient.
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公开(公告)号：JPH05245985A
公开(公告)日：1993-09-24
申请号：JP8294092
申请日：1992-03-06
Applicant: TORAY INDUSTRIES
Inventor： OKAZAKI IWAO , ABE KOICHI , AOYAMA MASATOSHI
Abstract: PURPOSE:To obtain excellent scratch resistance and electromagnetic conversion properties by forming strong projections on the surface of a laminated film layer by adding particles treated with alumine oxide to at least one surface layer. CONSTITUTION:In a biaxially oriented laminated film having at least two laminated structures, particles treated with an aluminic acid compd., for example, magnesium aluminate or calcium aluminate are added to at least one surface of the film. As the particles, silica particles or titanium oxide particles are designated but silica particles are especially pref. Particles whose particle size is too large with respect to the thickness of the film are not pref. and the ratio of the thickness of the particle-containing layer and the average particle size of the particles is pref. 1-100. The content of the particles treated with the aluminic acid compd. is pref. 0.1-5% by wt. of the particle-containing film.
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公开(公告)号：JPH05171014A
公开(公告)日：1993-07-09
申请号：JP34382091
申请日：1991-12-26
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To prepare a polyester compsn. which does not clog a polymer filter in the molding step and is useful for preparing a film or fiber excellent in abrasion resistance by compounding a specific arom. polyester with a particulate zirconium oxide. CONSTITUTION:An arom. polyester obtd. by copolymerizing at least one compd. having a sulfonic acid (or metal sulfonate) group with other necessary comonomers (e.g. one obtd. from dimethyl 5-sodiumsulfoisophthalate, dimethyl terephthalate, and ethylene glycol) is compounded with a particulate zirconium oxide pref. having a mean particle diameter of 0.005-3mum, still pref. 0.005-0.2mum.
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Patent Agency Ranking
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：JPH041225A
公开(公告)日：1992-01-06
申请号：JP10428690
申请日：1990-04-18
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , MORITA TORU , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a polyester composition which can give an ultrathin film or an ultrafine fiber in good productivity by a process for obtaining a polyester by the esterification and polycondensation of an acid component based on an aromatic dicarboxylic acid and a glycol component, wherein particles inert to the polyester are added under specified conditions. CONSTITUTION:A process for obtaining a polyester by the esterification or transesterification and subsequent polycondensation of a dicarboxylic acid (esterifiable derivative) based on an aromatic dicarboxylic acid (e.g. dimethyl terephthalate) and a glycol component (e.g. ethylene glycol), wherein particles (e.g. titanium oxide) inert to the polyester in the form of a glycol slurry are added continuously or intermittently to the reaction system while the temperature drop of the reaction system is controlled within 50 deg.C.
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公开(公告)号：JPH0360725A
公开(公告)日：1991-03-15
申请号：JP19387089
申请日：1989-07-28
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , FUJII YOSHINARI , IWATANI HIDETSUGU
Abstract: PURPOSE:To enhance the permselectivity to an org. liq. from its aq. soln. by heat-treating a porous membrane contg. a polyvinylidene fluoride-based polymer at >=35 deg.C to form the aq. volatile org. liq. soln.-concentrating membrane. CONSTITUTION:A soln. consisting of a polyvinylidene fluoride-based polymer, its solvent and an org. solvent having higher volatility than the solvent is cast over the surface of a solid, etc., in fixed thickness. The solvents are vaporized for a fixed time, and then the solvent is substituted for a solidifying solvent to obtain a sheet-shaped porous membrane. The porous membrane of the polyvinylidene fluoride-based polymer is heat-treated at a temp. higher than 35 deg.C or appropriately higher than 50 deg.C and lower than the m.p. of the polymer to obtain an aq. volatile org. liq. soln-concentrating membrane. The polyvinylidene fluoride content of the membrane is appropriately controlled to at least 50wt.%.
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公开(公告)号：JPH0330662A
公开(公告)日：1991-02-08
申请号：JP16625089
申请日：1989-06-28
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , FUJII YOSHINARI
Abstract: PURPOSE:To obtain an alcoholic drink having an alcoholic concentration higher than the starting stock solution by feeding an alcoholic drink on the primary side of a hydrophobic membrane, keeping pressure of secondary side to be lower than that of primary side and permeate the alcohol vapor through the above-mentionen membrane into the secondary side. CONSTITUTION:An alcoholic drink as a starting stock solution is controlled to prescribed temperature by a heat exchanger 3 and fed to the primary side of a module 4 equipped with a hydrophobic separation membrane capable of preferentially permeating a voltatile organic liquid. Then the secondary side of the module is kept at pressure lower than that of the primary side by a vacuum pump 19 and a pressure-reducing degree controlling device 8 and the concent vapor of an alcohlic ingredient is permeated to the secondary side of the above-mentioned module 4. Thereafter, the vapor is condensed by condensers 6 and taken out to provide the objective drink. Furthermore, an inert gas is preferably allowed to flow to the above-mentioned secondary side.
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公开(公告)号：JPH02273521A
公开(公告)日：1990-11-08
申请号：JP9297589
申请日：1989-04-14
Applicant: TORAY INDUSTRIES
Inventor： IWATANI HIDETSUGU , FUJII YOSHINARI , AOYAMA MASATOSHI
Abstract: PURPOSE:To manufacture a film to concentrate and separate selectively organic liquid from volatile organic liquid aqueous solution by adding solution of a polymer having fluorine containing alkyl to solution of an acrylonitrile group polymer. CONSTITUTION:Solution of a polymer having fluoroalkyl and whose structure unit is represented by the formula I (representing R1 to R3 =H, alkyl having 1 to 20 carbons, fluoroalkyl, R4= fluoroalkyl having 1 to 20 carbons, X = ester bonding, amide bonding and the like) is added to an acrylonitrile group polymer such as polyacrylonitrile. Then, said mixed solution is manufactured in the form of a porous film of acrylonitrile group polymer. Said film concentrates and separates the organic liquid from the volatile organic liquid aqueous solution with good selectivity.
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