C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 291/08 (2006.01) C08F 279/02 (2006.01) C09D 5/00 (2006.01) C09D 7/12 (2006.01) C09D 151/06 (2006.01) C09D 153/00 (2006.01) C08G 63/06 (2006.01) C08G 65/28 (2006.01)
Patent
CA 2276838
The present invention provides an olefin-based block copolymer that has an olefin block that is substantially saturated and at least one (poly)ester or (poly)ether block. The olefin-based block copolymer of the invention can be prepared by reacting a liquid hydroxyl-functional, saturated or substantially saturated olefin polymer with a chain--extension reagent that is reactive with hydroxyl groups and will polymerize in a head-to-tail arrangement of monomer units. The olefin-based block copolymer of the invention can be used to prepare an adhesion promoter that provides excellent adhesion of subsequent coating layers to olefinic substrates like TPO and superior properties as compared to previously used adhesion promoters containing chlorinated polyolefins. Alternatively, the olefin-based copolymers of the invention can be used as an additive in a curable coating composition to provide excellent adhesion to olefinic substrates like TPO, even when used in very minor amounts compared to the amounts required for previously known agents.
Blickberndt Daniel
Krueger Keri
Mcgee John D.
Ohrbom Walter H.
Schang Craig
Basf Corporation
Robic
LandOfFree
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