Patent ID: 7960474

Claim:
A single-component high-temperature-curing reactive composition comprising: (a) at least one liquid polyene with a number average molecular weight between 400 and 80,000 present in an amount of from 2 to 55% by weight based on the total weight of said composition; (b) at least one block copolymer with at least one polyene block having a number average molecular weight of from 800 to 15,000 and at least one saturated block having a number average molecular weight of from 500 to 90,000, said at least one block copolymer present in an amount of from 0.05 to 70% by weight based on the total weight of said composition; (c) at least one solid rubber having a number average molecular weight of at least 100,000; and (d) a cure system consisting essentially of a vulcanizing system comprising sulfur and at least one vulcanizing accelerator, wherein said cure system cures both said liquid polyene and said block copolymer.