Abrasion resistant polyurethane blend compositions

Details Abrasion resistant polyurethane blend compositions Abrasion resistant polyurethane blend compositions

C - Chemistry, Metallurgy

08

L

117/186, 400/533

C08L 75/04 (2006.01) B60J 10/00 (2006.01) C08G 18/10 (2006.01) C08G 18/62 (2006.01) C08J 7/04 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2016189

The present invention relates to a primerless, one-part, storage stable, fast heat curable, abrasion-resistant coating composition useful as a low friction coating for EPDM glass run channels in vehicles or similar applications. The coating composition comprises a blocked polyurethane, a coreactive crosslinking agent, and a compatible silicone oil. The blocked polyurethane is desirably made from a hydroxyl terminated hydrogenated diene polymer or polyolefin, which is reacted with excess equivalents of a polyisocyanate reactant and the free isocyanate groups blocked with a blocking agent.

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