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公开(公告)号：JPH09110797A
公开(公告)日：1997-04-28
申请号：JP26532195
申请日：1995-10-13
Applicant: TORAY INDUSTRIES
Inventor： NAGASAWA MAKOTO , AKIYAMA ISAMU , KOBAYASHI YASUNOBU
Abstract: PROBLEM TO BE SOLVED: To provide a slurry-feeding device capable of homogenizing a feeding slurry to stabilize the reaction and further stabilize the quality of the product, and capable of saving energy and resources. SOLUTION: This slurry-feeding device comprises a circulation line for circulating a slurry comprising terephthalic acid and ethylene glycol, and branched lines for feeding the slurry from the circulation line into plural esterification cans. At least a static mixer 5 is disposed in the circulation line.
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Patent Agency Ranking
公开(公告)号：JPH03181549A
公开(公告)日：1991-08-07
申请号：JP32216189
申请日：1989-12-11
Applicant: TORAY INDUSTRIES
Inventor： KAMAYA SATORU , KOBAYASHI YASUNOBU , SUZUKI MASARU
IPC: C08J5/18 , C08G63/82 , C08K3/08 , C08K3/12 , C08K3/16 , C08K3/32 , C08K5/05 , C08K5/09 , C08K5/10 , C08K5/51 , C08L67/00 , C08L67/02
Abstract: PURPOSE:To provide a polyester composition for insulation film having extremely low content of cyclic ethylene terephthalate trimer and produced in such a manner as to get a copolymer component content and a ratio of a specific metal to phosphorus satisfying respective specific requirements. CONSTITUTION:The objective polyester composition for insulation film is a polyester having an intrinsic viscosity [eta] of 0.5-1 (preferably 0.7-0.9), composed of ethylene terephthalate as main recurring unit and containing (A) 1-10mol% of at least one kind of a dibasic acid other than terephthalic acid and a diol other than ethylene glycol as a copolymerized component, (B) a metal (M) selected from alkali metal, alkaline-earth metal, iron-group metal, Mn, Sn, Pb, Zn and Cd and phosphorus (P) at ratios to satisfy the formula (M/P is equivalent ratio; phosphorus is regarded as bivalent and (C)
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公开(公告)号：JPH0457849A
公开(公告)日：1992-02-25
申请号：JP16885890
申请日：1990-06-27
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI YASUNOBU , KAMAYA SATORU , SUZUKI MASARU
Abstract: PURPOSE:To obtain a polyester compsn. for a capacitor film having improved electric properties by selecting a specific polyester which mainly comprises repeating units consisting of ethylene terephthalate and contains Mg and P. CONSTITUTION:The title compsn. comprises a polyester comprising repeating units consisting of ethylene terephthalate, contg. Mg and P, and satisfying formulas: Tc'-Tc>=60 deg.C and 0.1
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公开(公告)号：JPH03200735A
公开(公告)日：1991-09-02
申请号：JP33833989
申请日：1989-12-28
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , KOBAYASHI YASUNOBU
Abstract: PURPOSE:To purify ethylene glycol with completely removing oily component by filtering ethylene glycol containing oily component through a highly accurate filter having a filtering accuracy smaller than a specific value at a liquid temperature below a specific temperature. CONSTITUTION:Ethylene glycol containing oily component is purified by filtering through a filter having a filtering accuracy smaller than 20mmu (preferably
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公开(公告)号：JPH03281526A
公开(公告)日：1991-12-12
申请号：JP8398990
申请日：1990-03-29
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI YASUNOBU , KAMAYA SATORU , SUZUKI MASARU
Abstract: PURPOSE:To obtain the title polyester having a specific difference between crystallization temperature by cooling and crystallization temperature by heating and low content of cyclic trimer by adding a metal compound am a phosphorus compound during polycondensation and then carrying out solid phase polymerization. CONSTITUTION:(A) Terephthalic acid (ester-forming derivative) and (B) ethyl terephthalate are esterified or subjected to ester exchange reaction, and then, subjected to polycondensation reaction and just before completion of the polycondensation, (C) a metal compound (e.g. alcoholate or chloride) of alkaline (earth) metal, iron group, manganese, tin, lead or zinc and (D) a phosphorus compound (e.g. ester) of phosphoric (phosphorous) acid, phosphonic acid, phosphinic acid, etc., are added in a ratio of gram equivalent concentration of the component C and mol concentration of the component D of 1.0-2.8 and then solid phase polymerization is carried out to give the objective polymer having difference of crystallization temperature by cooling and crystallization temperature by heating of 10-35 deg.C.
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公开(公告)号：JPH03181550A
公开(公告)日：1991-08-07
申请号：JP32216289
申请日：1989-12-11
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI YASUNOBU , KAMAYA SATORU , SUZUKI MASARU
Abstract: PURPOSE:To provide a polyester composition for insulation film having low content of cyclic ethylene terephthalate trimer and produced in such a manner as to get a copolymer component content, an inert inorganic particle content and a ratio of a specific metal to phosphorus satisfying respective specific requirements. CONSTITUTION:The objective polyester composition for insulation film is a polyester having ethylene terephthalate as main recurring unit and containing (A) 0.5-10wt.% of inert inorganic particles having an average particle diameter of
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