Compositions suitable for elastomeric membranes

摘要: This invention relates generally to polymers suitable for making elastomeric films, membranes or sheets. More specifically, this is directed of the ethylene, alpha-olefin, diene terpolymer type that are reactor blends two components, an amorphous major component and semicrystalline minor component, wherein viscosity less than one fourth component. These particularly such as roofing membranes.