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公开(公告)号：JP2001315118A
公开(公告)日：2001-11-13
申请号：JP2000133146
申请日：2000-05-02
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , NAGAKI TETSUO
Abstract: PROBLEM TO BE SOLVED: To provide a resin cutting method for excluding the cutting failure caused by the propagation of algae or the like on a cutting apparatus even when the cutting of a resin is performed over a long period of time and preventing the mixing of foreign matter with a polymer. SOLUTION: In the resin cutting method, a means for extruding a plurality of resin strands, a means for cooling the strands by water to cut them into chips and a means for adding an oxidizable substance to the strands, chip cooling water or feed water are provided.
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公开(公告)号：JPH08165412A
公开(公告)日：1996-06-25
申请号：JP31220594
申请日：1994-12-15
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , HAYASHI GEN , OYAMA MASAHIKO
IPC: C08L25/02 , C08L67/00 , C08L67/02 , C08L101/00
Abstract: PURPOSE: To obtain a polyester composition, containing organic polymeric particles having heat resistance, having excellent slipperiness, capable of providing a molding hardly causing damage or chips by friction in processing or using and useful for a biaxially oriented film, etc., by specifying the refractive index of the particles. CONSTITUTION: This composition contains organic polymeric particles having 1.385-1.405 refractive index thereof and >=415 deg.C heat resistance of 10% weight loss temperature. Furthermore, the particles are preferably divinylbenzene- ethylvinylbenzene copolymer particles having >=60% cross-linking degree and preferably added in an amount of, e.g. 0.1-1wt.% based on the polyester.
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公开(公告)号：JPH0987493A
公开(公告)日：1997-03-31
申请号：JP23980795
申请日：1995-09-19
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , ODAJIMA AKIO
Abstract: PROBLEM TO BE SOLVED: To obtain a polyester composition, excellent in uniform dispersibility of particles, good in moldability without causing the reaggregation of the particles even when kept in a molten state and capable of providing a film excellent in runnability and abrasion resistance in molding the composition into the film. SOLUTION: This polyester composition comprises an aromatic polyester without substantially any strong acidic group or its metallic salt group, cross- linked polymer particles having >=50% cross-linking degree and a water-soluble high molecular compound. The water-soluble high molecular compound has >=0/15 coverage (s) defined by the formula (s)=wr [(w) is the amount of the added water-soluble high molecular compound (based on wt.% of the polymer particles); (r) is the average radius of the cross-linked polymer particles (μm)]. The film comprising the polyester composition is obtained.
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公开(公告)号：EP2083035A4
公开(公告)日：2014-08-13
申请号：EP07829457
申请日：2007-10-10
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , MORIMOTO KUNIHIRO , KAWAJI TOMIO , AOYAMA MASATOSHI
CPC classification number: C08G63/78 , D01F6/62 , D01F6/92 , Y10T428/1352
Abstract: Disclosed is a process for producing a polyester composition which can be obtained by polycondensation of a dicarboxylic acid or ester-forming derivative thereof and a diol or ester-forming derivative thereof in presence of a polycondensation catalyst, in which a polyester having a good color tone can be obtained by adding a specific phosphorus compound after a polycondensation catalyst is added and pressure reduction in polymerization reactor is started and before the polycondensation of the polyester is substantially completed, and at a time in which the polyester reaches 75% or more of the intrinsic viscosity to be finally reached in said polymerization reactor.
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公开(公告)号：JP2002309014A
公开(公告)日：2002-10-23
申请号：JP2001113898
申请日：2001-04-12
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , FUJITA AKIHARU , SHINGU YASUHIKO
Abstract: PROBLEM TO BE SOLVED: To provide a mat polyester film which can solve the defects of conventional techniques that mat polyester films containing inactive inorganic particles are liable to have concave or convex continuous streaks, has proper film glossiness, and scarcely has nozzle streak defects. SOLUTION: This mat polyester film contains 0.05 to 10.0 wt.% of inactive inorganic particles, 40 to 100 ppm (as phosphorus element) of a phosphorous compound, 100 to 300 ppm (as antimony element) of an antimony compound, an antimony element/phosphorus element (Sb/P) molar ratio of 0.5 to 1.0, a filtration pressure rise of , and a gloss degree of
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Patent Agency Ranking
公开(公告)号：JP2002053672A
公开(公告)日：2002-02-19
申请号：JP2000236885
申请日：2000-08-04
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , HIRAYAMA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a gas treatment device for resin chips, which can prevent the outside discharge of the resin chips from a treating region on the treatment of the chips with a flowing gas, even when the flow rate of the gas is not strictly controlled. SOLUTION: This gas treatment device for the resin chips, comprising a cylindrical container receiving the resin chips, a gas-charging port disposed in the lower portion of the cylindrical container, a used gas-discharging port disposed in the upper portion of the cylindrical container, a raw material resin chip-charging port disposed in the upper portion of the cylindrical container, and a used resin chip-charging port disposed in the lower portion of the cylindrical container, characterized by dividing the cylindrical container into a chip main treatment portion placed in the lower portion of the cylindrical container and a chip scatter-preventing portion placed in the upper portion and satisfying a relation of (SU/SL)>=1.2, wherein SL is the cross-sectional area of the chip main treatment portion and SU is the cross-sectional area of the chip scatter- preventing portion.
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公开(公告)号：JPH03278911A
公开(公告)日：1991-12-10
申请号：JP8017890
申请日：1990-03-28
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , FUJITA AKIHARU
Abstract: PURPOSE:To enable drying in a short time by preventing fusing of polyester particles, by a method wherein at the time of the drying of the particles by microwaves, a water content of a surface layer part and inner layer part is specified. CONSTITUTION:Polyester is of polyethylene terephthalate and that consisting mainly of the polyethylene terephthalate and even a matter where a part of a terephthalic acid ingredient or a glycol ingredient is replaced by the other copolymeric ingredient may be good. It is necessary that water content of a surface layer part, which is less than 300mum from the surface is made at least 0.8wt.% and not exceeding 5wt.% and further water content of the central part (inner layer part) which is at least 300mum from the surface is made not exceeding 0.5wt.%, in a distribution of a containing water in polyester particles which is prior to irradiation of microwaves. Then the shortest diameter of the particles is made at least 1mm, preferably at least 1.5mm, in a particle form of a polyester resin and the microwave to be used for drying is of an electromagnetic wave where it is at least UHF zone in an electric wave classification and possesses frequency of 1-100GHz sphere, especially the microwaves of 2.45+ or -0.05GHz are favorable.
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公开(公告)号：JP2002326966A
公开(公告)日：2002-11-15
申请号：JP2001132508
申请日：2001-04-27
Applicant: TORAY INDUSTRIES
Inventor： ONISHI KOJI , OKAMOTO TAKASHI , HAYASHI GEN
Abstract: PROBLEM TO BE SOLVED: To provide a method of purification for an aliphatic glycol component produced in a manufacturing process of polyester, stabilizing the process and improving quality of the purified glycol component. SOLUTION: This method for purifying the aliphatic glycol produced in the manufacturing process of polyester comprises distilling the glycol in the presence of an organic alkaline compound. The preferable organic alkaline compound is a tertiary ammonium salt.
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公开(公告)号：JPH09263628A
公开(公告)日：1997-10-07
申请号：JP7392996
申请日：1996-03-28
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , OYAMA MASAHIKO
IPC: C08G63/78
Abstract: PROBLEM TO BE SOLVED: To provide a polycondensation unit for polyester, having a means for mixing inert particle slurry with a medium and other means, compact in structure, capable of preventing particle coagulation and side reactions, and thus enabling the improvement of particle dispersibility in the polyester. SOLUTION: This polycondensation unit for polyester has (A) a means to feed slurry of inert particles such as of calcium carbonate or titanium dioxide, (B) a means to feed a slurry medium, and (C) a means such as a static mixer 7 to mix the slurry with the medium (pref. a than equipped with an agitator).
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公开(公告)号：JPH0940850A
公开(公告)日：1997-02-10
申请号：JP19039995
申请日：1995-07-26
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , HAYASHI GEN , OKAWA HIROMOTO
IPC: C08K3/22 , C08G63/181 , C08G63/78 , C08L67/00
Abstract: PROBLEM TO BE SOLVED: To obtain a polyester composition which particularly shows excellent abrasion resistance and durability, when it is used as a magnetic tape base by adding a slurry prepared by wet-treating 2 or more kinds of aluminum oxide particles different in their crystalline structure. SOLUTION: When polyester is produced using the acid components mainly containing aromatic dicarboxylic acids and the glycol components mainly containing aliphatic glycol, a slurry which is prepared by wet-dispersing two or more kinds of aluminum oxides different in their crystalline structure (suitably particles of 2 or more kinds of activated alumina selected from α-, γ-, δ-, θ-aluminum oxides) in a solvent (preferably the above-stated glycol component) using a phosphorus compound, preferably phosphoric acid, ammonia or a lower amine as a dispersant is added to the polyester at any optional stage. The aluminum oxide particles preferably have a specific surface area of 50-300m /g and the total pore volume of 0.2-1.5ml/g both according to the B.E.T. method.
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