Method of making extruded polyethylene pipes

Details Method of making extruded polyethylene pipes Method of making extruded polyethylene pipes

C - Chemistry, Metallurgy

08

L

C08L 23/06 (2006.01) B29C 47/00 (2006.01) B29C 61/00 (2006.01) C08L 23/04 (2006.01) C08L 47/00 (2006.01) C08L 53/00 (2006.01)

Patent

CA 2053891

The invention relates to a process for the production of plastic parts, particularly pipes and sleeves, by the extrusion of a mixture of polyethylene homopolymer, copolymer or block polymer (PE) and a polymeric plasticizer reactive therewith, as well as small amounts of conventional additives, in which the moulded or extruded plastic part optionally subsequently undergoes cross-linking and stretching, or cross-linking only, in which a mixture of PE and EPDM with an average molecular weight of 1,000 to 20,000 in a weight ratio of 90 to 97% PE and 3 to 10% by weight EPDM is moulded or extruded.

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