公开(公告)号：JP2002220445A

公开(公告)日：2002-08-09

申请号：JP2001016554

申请日：2001-01-25

Applicant: TORAY INDUSTRIES

Inventor： SHINTANI HIROSHI ,  AYABE TOSHIHARU ,  KATAKABE KOICHI

IPC: C08G63/78 ,  D01F6/84

Abstract: PROBLEM TO BE SOLVED: To produce a modified polyester lessened in an amount of coagulated lumps of titanium oxide and an amount of by-produced diethylene glycol by such a production process that the modified polyester which contains titanium oxide is produced by copolymerizing a sulfonic acid group-containing isophthalic acid component by using an oligomer produced by directly polymerizing main raw materials of terephthalic acid and ethylene glycol. SOLUTION: An ethylene glycol solution of the sulfonic acid salt group- containing isophthalic acid component at 50-150 deg.C is added to the oligomer produced by direct polymerization, and there after polycondensation is carried out by adding titanium oxide to it.

公开(公告)号：JP2000248070A

公开(公告)日：2000-09-12

申请号：JP5633899

申请日：1999-03-04

Applicant: TORAY INDUSTRIES

Inventor： AYABE TOSHIHARU ,  MOTOMURA YASUO ,  TANIGUCHI TOSHIHIRO

IPC: C08G69/04 ,  C08G63/78 ,  C08G64/20 ,  C08G69/28 ,  C08G85/00

Abstract: PROBLEM TO BE SOLVED: To provide a horizontal continuous polycondensation reactor enabling polymerization reaction to be accelerated by enlarging volatilization surface area and enabling productivity to become higher. SOLUTION: This reactor is constituted as follows: a raw material supply port 2 is installed on one end of an oblong vessel 1 and a polymer output port 3 is installed on the other end and a volatile matter exhaust port 4 is installed on the top; many groups of agitating disks 5 are placed in the vessel 1 along its longitudinal direction at defined intervals of distance and a group of disks 5 is a unit where plural wire net disks or porous disks 5A all having an opening 5q in the center of rotation are coaxially placed at small intervals w of distance; the disk interval w in each group of agitating disks 5 increased as the group parts from the supply port 2.

公开(公告)号：JPH10195204A

公开(公告)日：1998-07-28

申请号：JP499897

申请日：1997-01-14

Applicant: TORAY INDUSTRIES

Inventor： AYABE TOSHIHARU ,  NAGARA KAZUNORI

IPC: C08J3/12 ,  B29B9/02 ,  B29K67/00 ,  C08G63/00 ,  D01F6/62

Abstract: PROBLEM TO BE SOLVED: To provide polyester granular chips that resist fusion among granular chips or powdering during drying or solid-phase polymerization and show high polymerization rate in the solid-phase polymerization. SOLUTION: The shape of this granular chip has the following characteristics: (1) 0.4 at the cut part; S2 is the surface area in mm of a granule formed by natural cooling but not cutting; H1 is the average length of the minor axis of a chip cut on both ends in mm; H2 is the average length of the major axis of a chip cut on both ends in mm; M is a weight or every granular chip in g.

公开(公告)号：JP2002030138A

公开(公告)日：2002-01-31

申请号：JP2000214460

申请日：2000-07-14

Applicant: TORAY INDUSTRIES

Inventor： AYABE TOSHIHARU ,  TANIGUCHI TOMOHIRO

IPC: C08G63/78

Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a polyester wherein the usage of terephthalic acid and ethylene glycol is minimized while stable production is possible at a low cost. SOLUTION: A polyester is produced by reusing, as a part or the whole of main raw material, (1) a distillate comprising mainly ethylene glycol, generated through an esterification reaction and/or a polycondensation reaction and (2) a cleaning fluid comprising mainly ethylene glycol, discharged after cleaning a polyester oligomer catching unit between a polycondensation reactor and a pressure reducing device with ethylene glycol.

公开(公告)号：JPH11256426A

公开(公告)日：1999-09-21

申请号：JP6129298

申请日：1998-03-12

Applicant: TORAY INDUSTRIES

Inventor： AYABE TOSHIHARU ,  FUKAZAWA TOKUHARU

IPC: D01F6/86 ,  D01F1/10 ,  D01F6/92

Abstract: PROBLEM TO BE SOLVED: To obtain a polyester raw yarn excellent in fastness to nitrogen oxides and heat resistance. SOLUTION: This polyester raw yarn comprises a polyester prepared by copolymerizing 0.5-15 wt.% of a polyoxyalkylene glycol and having the residual ratio of the copolymerized polyoxyalkylene glycol to a phenolic antioxidant in the polyester raw yarn satisfying the formula: 3×10 [I denotes the residual ratio (wt.%) of he phenolic antioxidant in the polyester raw yarn; P denotes the copolymerization rate (wt.%) of the polyoxyalkylene glycol in the polyester raw yarn].