| 摘要 |
Processes for making at least partially vulcanized elastomers and melt processible thermoplastic compositions comprising such elastomers, and elastomers, compositions, and rubbery articles obtainable via such processes, are described. These elastomers are obtainable by at least partially crosslinking an elastomeric polymer containing reactive substituents with a crosslinking agent having a number average molecular weight less than about 2000, containing two or more reactive substituents differing from those contained in the elastomeric polymer, each of the reactive substituents being selected from the group consisting of carboxylic acid, carboxylic anhydride, carboxylic acid salt, carbonyl halide, hydroxy, epoxy, and isocyanate such that those of the elastomer will react with those of the crosslinking agent to at least partially crosslink the elastomer. Melt-processible thermoplastic compositions are disclosed which are obtainable by combining these elastomers with a thermoplastic polymer, such as by dynamic vulcanization of these elastomers in the presence of a thermoplastic polymer. |
