| 摘要 |
PURPOSE: Curing systems for compositions containing halogenated isomonoolefin/para-alkylstyrene copolymer elastomers and blends thereof with other polymers are provided. CONSTITUTION: Curable compositions contain a halogenated copolymer of a C4 to C7isomonoolefin, e.g., isobutylene and a para-alkylstyrene, e.g., para-methylstyrene, and further containing an effective amount of a metal salt, e.g., zinc, of an unsaturated carboxyl acid, e.g., methacrylic acid, as a curing agent. The composition also contains an organic peroxide as a co-curative and one or a mixture of saturated or olefinically unsaturated polymer blend components which are co-curable with the halogenated copolymer. |
