| 摘要 |
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 the formula (* CHEMICAL STRUCTURE *) 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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