One package polyurethane/thermoplast plastisol composition

Details One package polyurethane/thermoplast plastisol composition One package polyurethane/thermoplast plastisol composition

C - Chemistry, Metallurgy

08

L

C08L 75/04 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/76 (2006.01) C08L 27/06 (2006.01) C08L 33/00 (2006.01) C09D 5/08 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2109437

2109437 9219662 PCTABS00017 A reactive plastisol composition includes a one component, solventless, storage stable, low temperature curable polyurethane composition and a thermoplast plastisol. The urethane composition is formed from a blocked isocyanate prepolymer and a curing agent. The isocyanate prepolymer is the reaction product of a polyol, a diisocyanate, and a ketoxime blocking agent. The diisocyanate has formula (I) in which R1-R4 are each a C1-C6 alkyl which can be linear or branched, R5 is a phenylene or naphthalene ring which is unsubstituted or substituted by one or more C1-C12 linear or branched chained alkyl groups or halo groups, and m and n are each integers from 0 to 6. A polyurethane curing catalyst can also be used.

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