Title (en)

HIGH-MOLECULAR WEIGHT POLYMERS AND METHODS OF MANUFACTURE

Title (de)

HOCHMOLEKULARE POLYMERISATE UND HERSTELLUNGSVERFAHREN

Title (fr)

POLYMERES A POIDS MOLECULAIRE ELEVE ET LEURS PROCEDES DE FABRICATION

Publication

EP 1444014 A4 20050330 (EN)

Application

EP 01270110 A 20011113

Priority

US 0143494 W 20011113

Abstract (en)

[origin: WO03041802A1] A composition comprises a solid-stated block copolymer of an aromatic polyester and a caprolactone, wherein the copolymer has been solid state polymerized such that intrinsic viscosity increases at least 20%, the caprolactone content decreases no more than 1.2% absolute and the transesterification increases no more than 3.5% absolute, and wherein the solid-stated copolymer has an intrinsic viscosity of at least 0.82. Particularly preferred chain extension reactions are performed at a temperature of less than 175°C, and even more preferably at less than 165°C. In further aspects of the inventive subject matter, yarns and methods of producing a fiber include contemplated solid-stated block copolymers.

IPC 1-7

A62B 35/00; C08G 63/60; D03D 15/00; C08G 63/80; D01F 6/84; B60R 22/00; C08J 5/18

IPC 8 full level

A62B 35/00 (2006.01); B60R 22/00 (2006.01); C08G 63/60 (2006.01); C08G 63/80 (2006.01); C08J 5/18 (2006.01); D01F 6/84 (2006.01); D03D 1/00 (2006.01); D03D 15/00 (2006.01)

CPC (source: EP KR)

C08F 293/00 (2013.01 - KR); C08G 63/60 (2013.01 - EP); C08G 63/80 (2013.01 - EP); C08J 5/18 (2013.01 - EP); D03D 1/0005 (2013.01 - EP); C08J 2367/00 (2013.01 - EP); D10B 2331/041 (2013.01 - EP); D10B 2331/042 (2013.01 - EP)

Citation (search report)

• [XA] US 5830811 A 19981103 - TANG WEIMING [US], et al
• [A] US 6071835 A 20000606 - TANG WEIMING [US], et al
• [A] US 5374690 A 19941220 - AL GHATTA HUSSAIN [IT]
• [A] US 5656700 A 19970812 - KAEGI WERNER [CH], et al
• [A] EP 1120432 A1 20010801 - DAICEL CHEM [JP]
• [A] EP 0893463 A1 19990127 - DAICEL CHEM [JP]
• [X] US 4670498 A 19870602 - FURUSAWA HIRONOBU [JP], et al
• [X] US 4942219 A 19900717 - YATSUKA TAKESHI [JP], et al
• [A] DATABASE WPI Section Ch Week 198705, Derwent World Patents Index; Class A23, AN 1987-032233, XP002316244
• [A] DATABASE WPI Section Ch Week 199215, Derwent World Patents Index; Class A23, AN 1992-117922, XP002316245
• [A] DATABASE WPI Section Ch Week 198513, Derwent World Patents Index; Class A23, AN 1985-078330, XP002316246
• See references of WO 03041802A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 03041802 A1 20030522; BR 0117146 A 20041026; CA 2459296 A1 20030522; EP 1444014 A1 20040811; EP 1444014 A4 20050330; JP 2005509055 A 20050407; KR 20040054764 A 20040625; MX PA04004258 A 20040908

DOCDB simple family (application)

US 0143494 W 20011113; BR 0117146 A 20011113; CA 2459296 A 20011113; EP 01270110 A 20011113; JP 2003543683 A 20011113; KR 20047007139 A 20011113; MX PA04004258 A 20011113