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
Application
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
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