Global Patent Index - EP 0464141 A4

EP 0464141 A4 19920520 - LINEAR POLYURETHANE ELASTOMER COMPOSITIONS AND USE OF MODIFIED DIISOCYANATES FOR PREPARING SAME

Title (en)

LINEAR POLYURETHANE ELASTOMER COMPOSITIONS AND USE OF MODIFIED DIISOCYANATES FOR PREPARING SAME

Publication

EP 0464141 A4 19920520 (EN)

Application

EP 90905858 A 19900319

Priority

  • US 32618389 A 19890320
  • US 32686589 A 19890320

Abstract (en)

[origin: WO9011309A1] Linear polyurethane elastomers of a polyol component, at least two extender components, and a diisocyanate compound are prepared by reacting the diisocyanate compound with one of the extender components to form a modified diisocyanate component having a functionality of about 2 prior to reacting this modified component with the other components of the elastomer. A preferred polyol component includes a mixture of a polycarbonate polyol and a polyether polyol. These new elastomers possess a unique combination of hydrolytic stability, toughners, and flexibility and can be processed at lower temperatures compared to elastomers prepared from similar compositions wherein the isocyanate compound is not modified.

IPC 1-7

C08G 18/10; C08G 18/44; C08G 18/48

IPC 8 full level

C08G 18/10 (2006.01); C08G 18/12 (2006.01); C08G 18/40 (2006.01); C08G 18/65 (2006.01); C08G 18/66 (2006.01); C08G 18/76 (2006.01); C08G 18/80 (2006.01)

CPC (source: EP KR)

C08G 18/10 (2013.01 - KR); C08G 18/12 (2013.01 - EP); C08G 18/4018 (2013.01 - EP); C08G 18/6607 (2013.01 - EP); C08G 18/7671 (2013.01 - EP); C08G 18/8012 (2013.01 - EP); C08G 18/8038 (2013.01 - EP)

Citation (search report)

  • [X] DE 2523987 A1 19760102 - STASSFURT VEB CHEMIEANLAGENBAU
  • [X] WORLD PATENTS INDEX LATEST Week 8733, Derwent Publications Ltd., London, GB; AN 87-233021 & JP-A-62 158 712 (TOYO RUBBER) 14 July 1987
  • See references of WO 9011309A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 9011309 A1 19901004; AU 5355190 A 19901022; AU 642409 B2 19931021; CA 2047678 A1 19900921; EP 0464141 A1 19920108; EP 0464141 A4 19920520; JP H04504138 A 19920723; KR 920701290 A 19920811

DOCDB simple family (application)

US 9001477 W 19900319; AU 5355190 A 19900319; CA 2047678 A 19900319; EP 90905858 A 19900319; JP 50550990 A 19900319; KR 910701135 A 19910917