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公开(公告)号：JPH05311050A
公开(公告)日：1993-11-22
申请号：JP11889492
申请日：1992-05-12
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To improve the abrasion resistance and scratch resistance by incorporating specified aluminum-zirconium double oxide particles. CONSTITUTION:A thermoplastic resin is mixed with 0.05-5wt.% aluminum- zirconium double oxide particles which have a mean particle diameter of 0.01-5mum and satisfies the formula 5/95
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公开(公告)号：JPH05156140A
公开(公告)日：1993-06-22
申请号：JP32474591
申请日：1991-12-09
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To prepare a polyester compsn. which enables the production of a film or fiber excellent in abrasion resistance, slipperiness, and windability by compounding a thermoplastic polyester with zirconium oxide particles having specified particle properties and inert inorg. particles each in a specified amt. CONSTITUTION:A thermoplastic polyester is compounded with 0.01-10wt.% zirconium oxide particles having a specific surface area by the B.E.T. method of 10m /g or higher and 0.01-10wt.% inert inorg. particles having a mean particle diameter of 0.01-5.0mum.
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公开(公告)号：JPH0570670A
公开(公告)日：1993-03-23
申请号：JP23515591
申请日：1991-09-13
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TOSHIHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To provide the subject composition comprising silica particles having a specific particle size and a specified thermoplastic polyester, having excellent sliding property abrasion resistance and affinity, and suitable for obtaining films or fibers. CONSTITUTION:The objective composition comprises (A) silica particles having a D1/D2 ratio of >=2 between a particle size (D1m#,) measured by a dynamic light scattering method and a particle size (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) a thermoplastic polyester having 10-100 equivalents per 10 g of the polyester.
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公开(公告)号：JPH0517563A
公开(公告)日：1993-01-26
申请号：JP31292791
申请日：1991-11-28
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO JUN , YOSHIDA MINORU , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a composition having small voids in molding into films and yarns, excellent slipperiness and shaving resistance, comprising particles subjected to surface treatment with a specific polyester and a thermoplastic polyester. CONSTITUTION:Particles subjected to surface treatment with a polyester which is a polyester comprising a dicarboxylic acid and a glycol component wherein >=60mol% total dicarboxylic acid components of the polyester segment are aromatic dicarboxylic acids and 10-40mol% total dicarboxylic acid components are dicarboxylic acids containing sulfonic acid or an alkali metal salt thereof and a glycol component is an aliphatic or alicyclic glycol, b are blended with a thermoplastic polyester. Calcium carbonate is preferably used as the particles which has preferably 0.1-3mum average particle diameter in the case of aiming a magnetic recording medium.
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公开(公告)号：JPH01204959A
公开(公告)日：1989-08-17
申请号：JP2956488
申请日：1988-02-10
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SAKAMOTO JUN , UEDA TOMOAKI
Abstract: PURPOSE:To provide a polyester composition which can give a molding, such as a film or a fiber, possessing both easy slidability and abrasion resistance, by adding a specified amount of specified silicone rubber particles to a polyester. CONSTITUTION:Silicone rubber particles of a mean particle diameter of 0.01-5mum, having structural units of the formula (wherein R1, R2 and R3 are each methyl, ethyl or phenyl, and m:n=5:95-80:20) are prepared. In the production of a polyester (e.g., polyethylene terephthalate), the prepared particles are added to the reaction system to produce a polyester containing 0.005-15wt.% silicone rubber particles. The obtained polyester composition is melt-molded into a film, and this film is biaxially oriented and heat-set to produce a biaxially oriented polyester film excellent in lubricity and chipping resistance and suitable for, e.g., a magnetic tape.
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Patent Agency Ranking
公开(公告)号：JP2004010793A
公开(公告)日：2004-01-15
申请号：JP2002167425
申请日：2002-06-07
Applicant: TORAY INDUSTRIES
Inventor： KANZAWA TAKESHI , YAMANE NOBUHISA , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester film excellent in flexibility and bleed-out resistance. SOLUTION: The polyester film contains 0.1-45wt% of a branched compound the number of whose ether bond (-O-) units other than epoxy groups is 3-100 per molecule and whose molecular weight is 200-4,000. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2003113259A
公开(公告)日：2003-04-18
申请号：JP2002215167
申请日：2002-07-24
Applicant: TORAY INDUSTRIES
Inventor： TANAKA KUNIMASA , MATSUI RYOSUKE , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a biaxially oriented polyester film having pinhole-resistant characteristics which a biaxially oriented nylon film has and also having good moldability which a conventional biaxially oriented polyester film and the biaxially oriented nylon film have not. SOLUTION: This biaxially oriented polyester film comprises a resin component composed of (A) 55-95 wt.% resin having 240-265 deg.C melting point and comprising >=90 wt.% polyester component composed of ethylene terephthalate and/or ethylene naphthalate and (B) 5-45 wt.% resin having 185-235 deg.C melting point and comprising >=70 wt.% polyester component, and the polyester film has properties comprising (1) >=200 MPa loss modulus (E") at a peak temperature of β disperse and (2) >=140 MPa breaking strength of the film or (1') >=55% recovery factor of deformation of the film after 20% pulling at 0 deg.C and (2) >=140 MPa breaking strength of the film.
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公开(公告)号：JP2002332338A
公开(公告)日：2002-11-22
申请号：JP2001139648
申请日：2001-05-10
Applicant: TORAY INDUSTRIES
Inventor： HONMA YOSHIHIRO , MORIMOTO TSUTOMU , YOSHIDA MINORU
IPC: C08G63/88
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polyester composition whereby the improvement in heat resistance of a polyester composition and the improvement in productivity accompanying to catalyst recovery can be achieved by removing a metal from the composition. SOLUTION: In a polyester production process containing an esterification step using an esterification catalyst and a polycondensation step using a polycondensation catalyst, a polyester composition is produced by separating and recovering the esterification catalyst and/or the polycondensation catalyst by adding a ligand, provided the ligand contains at least one kind of donor atom which can be coordinated with a metal or a metal ion and is selected from the group consisting of nitrogen, sulfur, and oxygen.
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公开(公告)号：JP2002302560A
公开(公告)日：2002-10-18
申请号：JP2001108419
申请日：2001-04-06
Applicant: TORAY INDUSTRIES
Inventor： MATSUI RYOSUKE , TAKAHASHI KOZO , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a polyester film for a container, suitable for a two-piece metal can for a food, having excellent properties for lamination, forming processability, taste characteristics and performance for taking out the content. SOLUTION: This polyester film for the container comprises a polyester film having at least one surface having
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公开(公告)号：JP2002302559A
公开(公告)日：2002-10-18
申请号：JP2001108418
申请日：2001-04-06
Applicant: TORAY INDUSTRIES
Inventor： MATSUI RYOSUKE , TAKAHASHI KOZO , YOSHIDA MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a white polyester film for laminating a metal plate, suitable for a two-piece metal can for a food, having excellent properties for lamination, molding processability, taste characteristics, performance for taking out the content, and visual hygiene. SOLUTION: This white polyester film for laminating the metal plate is the polyester film having at least one surface having =65% whiteness.
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