Patent ID: 8519057
Filing Date: 2013-08-27
Classification: C08C,C08F,C08L

Abstract:
1. An in-situ formed composition suitable for melt-molding into structural polyolefin material, consisting essentially of: A) from 50 to 99 wt %, by weight of the composition, of an epoxidized ethylene-dicyclopentadiene copolymer having: B) from 1 to 50 wt %, by weight of the composition, of a hydroxylated elastomeric diene-based polymer or copolymer having a glass transition temperature of from about −10° C. to about −80° C.; wherein the composition is formed by the process of (i) dissolving in a common liquid reaction medium the ethylene/dicyclopentadiene copolymer and said elastomeric diene-based polymer or copolymer, (ii) contacting the dissolved mixture with an oxidizing agent to generate the epoxidized ethylene-dicyclopentadiene copolymer and the hydroxylated elastomeric diene-based polymer or copolymer, the oxidizing agent comprising a mixture of hydrogen peroxide and formic acid which generates performic acid in-situ within said common liquid reaction medium, and (iii) co-precipitating the epoxidized and hydroxylated copolymer mixture from said common liquid reaction medium as a co-precipitated polymeric composition wherein the epoxidized ethylene-dicyclopentadiene copolymer A) comprises oxirane rings at least 97.8% of the sites of the dicyclopentadiene double bonds and the hydroxylated elastomeric copolymer B) comprises diol and/or hydroxyl groups at least 50% of the sites of the diene-derived co-monomer double bonds, wherein the composition has a first T wherein the composition is completely soluble in chloroform at room temperature.