C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2012, 400/30
C08G 18/62 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/65 (2006.01) C08L 23/00 (2006.01) C08L 75/04 (2006.01)
Patent
CA 1331238
POLY-?-OLEFIN/POLYURETHANE BLOCK COPOLYMERS, PROCESSES FOR THEIR PRODUCTION AND THEIR USE ABSTRACT OF THE DISCLOSURE The present invention is directed to poly-.alpha.- olefin/polyurethane block copolymers which are prepared by reacting A) isocyanate-reactive functionalized poly-(C2-C10-.alpha.- olefins) having a number average molecular weight Mw of about 1000 to 350,000, B) polyisocyanates, isocyanate prepolymers or modified polyisocyanates, and, optionally, C) isocyanate-reactive synthesis units containing Zerewitinoff-Active hydrogen atoms and having a molec- ular weight of 400 to about 5000 and, optionally, D) low molecular weight isocyanate-reactive chain extending agents having a molecular weight of 32 to 399. The present invention is also directed to this process for preparing the poly-.alpha.-olefin/polyurethane block copolymers and to their use as polymer dispersants for the production of polymer blends, as primers or modifiers or for the production of moldings or coatings.
540081
Franke Joachim
Haas Peter
Meurer Kurt Peter
Witte Josef
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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