Extrusion processing aid composition and polyolefin containing s

Details Extrusion processing aid composition and polyolefin containing s Extrusion processing aid composition and polyolefin containing s

1987-06-22

1988-08-16

Lieberman, Allan M.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26433117, B29C 4700, D01F 110

Patent

active

047643269

ABSTRACT:
There is disclosed an extrusion processing aid composition for the extrusion of polyolefins, particularly linear low density polyethylene and high density polyethylene films of sheets; polyolefin compositions containing said processing aid and a process of extruding polyolefins using said processing aid. The processing aid is a composition comprising (a) an amide of a saturated or unsaturated carboxylic acid or a saturated or unsaturated alkylene bis-amide of a saturated or unsaturated dicarboxylic acid; (b) an aliphatic hydrocarbon polymer mixture having a molecular weight of from about 400 to about 50,000; and (c) an oxygen-containing high density, low molecular weight ethylene polymer.

REFERENCES:
patent: 3976612 (1976-08-01), Kaji et al.
patent: 4130618 (1978-12-01), Hill
patent: 4436863 (1984-03-01), Albee, Jr. et al.

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