ELASTOMERIC COPOLYMERS OF ETHYLENE AND PROPYLENE

摘要

TITLE: Elastomeric Copolymers of Ethylene and Propylene Novel copolymers of ethylene with propylene and optionally with minor proportions of a diene or polyene having good elastomeric properties in their uncured state. The copolymers are characterised by a structure in which the propylene is partially present in the form of short isotactic sequences. Tension set values ( 200% ) of less than 15 are obtained by when the ethylene/propylene ratio has specific values and the intrinsic viscosity values are higher than 3.