Process for manufacturing an extruded article and an extruded article
AssigneeMitsui Chemicals, Inc.
InventorsTetsuji Kasai, Mamoru Takahashi, Takashi Nakagawa, Satoshi Akiyama
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Abstract
The present invention provides a process for manufacturing an molded article that involves the occurrence of reduced number of gels and less corrosion of the molding equipment in high-temperature molding, particularly extrusion molding onto such substrate as paper; an extruded article; and an olefin polymer composition suitable therefor. The olefin polymer composition comprises an olefin polymer containing 5 to 200 ppm of aluminum, as aluminum atom, 0 to not more than 1,000 ppm of a phenolic stabilizer and 50 to 2,000 ppm of a phosphoric stabilizer.
Claims8
A process for manufacturing an extruded article of an olefin polymer composition, which comprises extruding an aluminum-containing olefin polymer containing
- (A) 5 to 200 ppm of aluminum, as aluminum atom,
- (B) more than 0 to not more than 1,000 ppm of a phenolic stabilizer and
- (C) 50 to 2,000 ppm of a phosphoric stabilizer, at a temperature of 280° C. to 360° C.,
- wherein the amount of phenolic stabilizer (X) and the amount of phosphoric stabilizer (Y) further satisfy the following relationships:
- 50 ppm≦X+Y≦1,000 ppm
- 0≦X/Y≦3.
Dependencies are inferred from the claim text.