Patent ID: 8765834
Filing Date: 2014-07-01
Classification: C08L

Abstract:
1. A process for the production of a cross-linked polymer blend, comprising the steps of: a) preparing a polymer solution comprising a first polymer in a first reactor, wherein the first polymer comprises, by weight of the first polymer, from about 75 to about 88 wt % propylene-derived units, from about 12 to about 25 wt % ethylene-derived units, and from about 0.05 to about 6 wt % diene-derived units; b) preparing a polymer solution comprising a second polymer in a second reactor, wherein the second polymer comprises, by weight of the second polymer, from about 90 to about 99 wt % propylene-derived units, from about 1 to about 10 wt % ethylene-derived units, and from about 0.05 to about 6 wt % diene-derived units; c) combining the first polymer solution with the second polymer solution to produce a polymer blend solution; d) processing the polymer blend solution to produce a polymer blend; and e) combining the polymer blend and at least one UV sensitizer to form a compounded polymer blend; and f) at least partially cross-linking the compounded polymer blend by UV radiation.