Patent ID: 6111013
Filing Date: 2000-08-29
Classification: C08F,C08J,C08K

Abstract:
A process for the manufacture of a plastics product from a polyolefin resin, said process comprising the steps of:(a) providing a polymerizable plasticizer monomer system which system comprises: a plasticizer monomer composition and a polymerization initiator, said composition containing: an effective plasticizing amount of plasticizer monomer relative to said polyolefin resin so as to act as a plasticizer or processing aid under the product shape forming conditions of step (c) used in the product manufacturing process as defined herein below, for polymerization of said monomer, said composition being substantially non-polymerizable under the product shape forming conditions, while being substantially polymerizable subsequently in said system so as to produce a product substantially free of liquid plasticizer, and said plasticizer monomer being a solvent for said polyolefin resin under said product shape forming conditions of step (c);(b) bringing said plasticizer monomer composition into intimate admixture with said polyolefin resin to produce a polyolefin-plasticizer mixture in which said polyolefin resin is dissolved in said plasticizer monomer;(c) forming said mixture into a desired product shape; and(d) subsequently inducing polymerization of said plasticizer monomer using the polymerization initiator so as to polymerize substantially said plasticizer monomer thereby to provide a final plastics product having said desired product shape substantially free of liquid plasticizer.