| abstract |
in order to improve the mill release and green strength of an elastomeric copolymer derived from ethylene; alkyl acrylates or vinyl esters of carboxylic acids; and a,p-unsatruated mono-or dicarboxylic acids, which copolymer may optionally contain segments derived from carbon monoxide, sulfur dioxide or acrylonitrile, a small quantity of one or more specific chromium (III) compounds are incorporated into the copolymer. A process for the preparation of the copolymer is described and exemplified, and vulcanizable compositions containing the copolymer and vulcanized articles prepared therefrom are described. |