公开(公告)号：CA2183699A1

公开(公告)日：1997-03-01

申请号：CA2183699

申请日：1996-08-20

Applicant: TORAY INDUSTRIES

Inventor： ASAKURA RYOSUKE ,  NAGAIWA HIROHITO ,  MURAKAMI MASASHIGE

IPC: C08G63/183 ,  C08G63/181 ,  C08G63/78

Abstract: Disclosed is a method for producing polyesters by polymerizing terephthalic acid and/or its ester-forming derivative, and a glycol and/or its ester-forming derivative in a plant comprising an esterification device and a polycondensation device in series, while partly or wholly recycling the distillate from the esterification device and/or the polycondensation device that consists essentially of a glycol and/or its ester-forming derivative. The method comprises a step of continuously or intermittently measuring the content of at least one of water, the glycol and its ester-forming derivative in the distillate to be recycled, determining the amounts of the raw materials to be fed to the intended reaction device, on the basis of the data thus measured, and feeding the thus-determined amounts of the raw materials to the reaction device; or comprises a step of storing the distillate, prior to being recycled for the starting material, in a storing tank that has a capacity corresponding to the amount of the glycol and/or its esterforming derivative to be fed to the esterification device for a period of 10 hours or more.

公开(公告)号：ID17496A

公开(公告)日：1998-01-08

申请号：ID972271

申请日：1997-06-30

Applicant: TORAY INDUSTRIES

Inventor： KAWAJI TOMIO ,  ASAKURA RYOSUKE ,  TANIGUCHI TOMOHIRO

IPC: C01G23/047 ,  C08K3/22 ,  C09C1/36 ,  C08G63/00

Abstract: Titanium oxide and a thermoplastic resin composition incorporated therewith, said titanium oxide being characterized by its property that it disperses into ethylene glycol (as a dispersing medium) to give a 13 wt% suspension which has a specific resistance higher than 7000 OMEGA .cm and passes through a filter paper with a pore size of 6 mu m such that the filtration pressure does not exceed 100 kPa after filtration for 4 minutes at a flow rate of 1.73 cm /min.cm .

公开(公告)号：DE69626163D1

公开(公告)日：2003-03-20

申请号：DE69626163

申请日：1996-08-28

Applicant: TORAY INDUSTRIES

Inventor： ASAKURA RYOSUKE ,  NAGAIWA HIROHITO ,  MURAKAMI MASASHIGE

IPC: C08G63/78

Abstract: Disclosed is a method for producing polyesters by polymerizing terephthalic acid and/or its ester-forming derivative, and a glycol and/or its ester-forming derivative in a plant comprising an esterification device and a polycondensation device in series, while partly or wholly recycling the distillate from the esterification device and/or the polycondensation device that consists essentially of a glycol and/or its ester-forming derivative. The method comprises a step of continuously or intermittently measuring the content of at least one of water, the glycol and its ester-forming derivative in the distillate to be recycled, determining the amounts of the raw materials to be fed to the intended reaction device, on the basis of the data thus measured, and feeding the thus-determined amounts of the raw materials to the reaction device; or comprises a step of storing the distillate, prior to being recycled for the starting material, in a storing tank that has a capacity corresponding to the amount of the glycol and/or its ester-forming derivative to be fed to the esterification device for a period of 10 hours or more.

公开(公告)号：CA2230667A1

公开(公告)日：1998-01-08

申请号：CA2230667

申请日：1997-06-27

Applicant: TORAY INDUSTRIES

Inventor： TANIGUCHI TOMOHIRO ,  ASAKURA RYOSUKE ,  KAWAJI TOMIO

IPC: C01G23/047 ,  C08K3/22 ,  C09C1/36 ,  C01G23/04 ,  C08L67/00

Abstract: Titanium oxide exhibiting a filtration-pressure increase of 100 kPa or below after the lapse of 4 minutes, as determined by passing a 13 % by weight suspension thereof in ethylene glycol through a filter paper having an accuracy of filtration of 6 .mu.m at a flow rate of 1.73 cm3/min.cm2, and having a specific resistance of 7000 .OMEGA..cm or above; and a thermoplastic resin composition containing the same.

公开(公告)号：JP2002338671A

公开(公告)日：2002-11-27

申请号：JP2001147275

申请日：2001-05-17

Applicant: TORAY INDUSTRIES

Inventor： MOTOMURA YASUO ,  ASAKURA RYOSUKE ,  HIRAOKA HITOSHI

IPC: C08G63/78

Abstract: PROBLEM TO BE SOLVED: To obtain a polyester of a stable quality even when a polyester waste is blended as a part of raw material with a polyester oligomer in a continuous polyester production installation. SOLUTION: In a process for continuously producing a polyester by subjecting raw materials comprising terephthalic acid/or its derivative and ethylene glycol to an esterification reaction and subjecting the obtained polyester oligomer to polycondensation, a polyester waste comprising mainly ethylene terephthalate is added to the polyester oligomer in the esterification reactor at an esterification reaction temperature of 260-280 deg.C in the final stage.

公开(公告)号：JPH09124784A

公开(公告)日：1997-05-13

申请号：JP17518196

申请日：1996-07-04

Applicant: TORAY INDUSTRIES

Inventor： ASAKURA RYOSUKE ,  NAGAIWA HIROTO ,  MURAKAMI MASASHIGE

IPC: C08G63/183 ,  C08G63/181 ,  C08G63/78

Abstract: PROBLEM TO BE SOLVED: To secure the reuse of specified components in a distillate discharged from a reactor and/or polycondensation equipment in the production of a polyester and stably produce a polyester over a long period of time. SOLUTION: This process for producing a polyester by feeding raw materials comprising terephthalic acid and/or an ester-forming derivative thereof and a glycol and/or an ester-forming derivative thereof into an esterification reactor to effect esterification and feeding the obtained polyester low molecular polymer into a polycondensation reactor to effect polycondensation, which has the step of reusing as a raw material a part of or the whole of the distillate discharged from the esterification reactor and/or the polycondensation reactor and consisting mainly of a glycol and/or an ester-forming derivative thereof and the step of feeding the raw material containing the distillate at a feed rate determined based on the results of measuring the contents of components in the distillate.

公开(公告)号：EP0847960A4

公开(公告)日：2000-05-03

申请号：EP97928510

申请日：1997-06-27

Applicant: TORAY INDUSTRIES

Inventor： KAWAJI TOMIO ,  ASAKURA RYOSUKE ,  TANIGUCHI TOMOHIRO

IPC: C01G23/047 ,  C08K3/22 ,  C09C1/36 ,  C01G23/00 ,  C08L67/00

CPC classification number: C09C1/3615 ,  C01G23/047 ,  C01P2006/22 ,  C01P2006/40 ,  C01P2006/60 ,  C01P2006/80 ,  C01P2006/90 ,  C08K3/22 ,  C09C1/3607 ,  C08L67/02

Abstract: Titanium oxide and a thermoplastic resin composition incorporated therewith, said titanium oxide being characterized by its property that it disperses into ethylene glycol (as a dispersing medium) to give a 13 wt% suspension which has a specific resistance higher than 7000 OMEGA .cm and passes through a filter paper with a pore size of 6 mu m such that the filtration pressure does not exceed 100 kPa after filtration for 4 minutes at a flow rate of 1.73 cm /min.cm .

Abstract translation: 氧化钛和与其结合的热塑性树脂组合物，所述二氧化钛的特征在于其分散于乙二醇（作为分散介质）中，得到13重量％的电阻率高于7000欧米加·厘米2的悬浮液，并通过 通过孔径为6μm的滤纸，使得在1.73cm 3 /分钟/厘米2的流速下过滤4分钟后，过滤压力不超过100kPa。