초록 ▼

The present invention relates to a process for the manufacture of a plastics product from a polyolefin resin using a plasticizer monomer system which is substantially non-polymerizable under the product shape forming, conditions used in the product manufacturing process and which acts as a plasticiz

The present invention relates to a process for the manufacture of a plastics product from a polyolefin resin using a plasticizer monomer system which is substantially non-polymerizable under the product shape forming, conditions used in the product manufacturing process and which acts as a plasticizer or processing aid under said shape forming conditions, while being substantially polymerizable subsequently so as to produce a product substantially free of liquid plasticizer. The plasticizer monomer is mixed with the polyolefin resin; and the mixture formed into a desired product form. Polymerization of the plasticizer monomer then provides a final product substantially free of liquid plasticizer.

대표청구항 ▼

[ What is claimed is:] [1.] 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 compos

[ What is claimed is:] [1.] 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.