.alpha.,.beta.-Unsaturated schiff-base chain extension reactions for
申请人:Ciba-Geigy Corporation
公开号:US04105646A1
公开(公告)日:1978-08-08
This invention provides compositions containing thermally stable prepolymers with azadiene end groups, and compositions containing such prepolymers in combination with dienophiles and the chain-extended and cross-linked polymers obtained from these systems. The combination of such prepolymers with dienophiles facilitates processing of the prepolymer resin by lowering the softening and curing temperatures under processing conditions.