Patent ID: 9006343
Filing Date: 2015-04-14
Classification: C08F,C08L

Abstract:
1. A process for preparing polymeric compositions suitable for molding into structural polyolefin products, which process comprises: A) dissolving in a liquid reaction medium from 60 to 95 parts by weight of ethylene-dicyclopentadiene copolymer component having: B) co-dissolving with said ethylene-dicyclopentadiene copolymer component in said liquid reaction medium from 5 to 40 an elastomeric polymer component having a glass transition temperature, T C) subjecting said liquid reaction medium containing said ethylene-dicyclopentadiene copolymer component and said elastomeric polymer component to hydrogenation conditions in-situ, effective to completely hydrogenate the residual double bond moieties within said ethylene-dicyclopentadiene copolymer component and the elastomeric polymer component; and D) co-precipitating the resulting completely partially hydrogenated ethylene-dicyclopentadiene copolymer component and completely hydrogenated elastomeric polymer component from said liquid reaction medium as a co-precipitated polymeric composition With a precipitation-inducing agent which renders the polymer components insoluble in said liquid reaction medium.