Process for preparing extrudable polymeric vinylidene chloride c

Details Process for preparing extrudable polymeric vinylidene chloride c Process for preparing extrudable polymeric vinylidene chloride c

1991-01-31

1992-12-29

Henderson, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526195, 526210, 526213, 526216, 526233, 526234, 5263294, C08F 220

Patent

active

051752220

ABSTRACT:
The present invention is a polymer composition comprising vinylidene chloride with improved thermal stability. The process comprises either advance addition or polymer slurry addition of a salt of a non-alkenic weak acid during the polymerization of the vinylidene chloride. The polymeric composition comprises a reaction product of a salt of a nonalkenic weak acid in an amount effective to provide improved thermal stability to the polymeric composition. In a preferred embodiment, the present invention further comprises adding a salt of a carboxylic acid to the polymer slurry.

REFERENCES:
patent: 2604459 (1952-07-01), Jankowiak
patent: 3813373 (1974-05-01), Ito
patent: 4303564 (1981-12-01), Kuroshima
patent: 4418168 (1983-11-01), Johnson
patent: 4507378 (1985-03-01), Wada
patent: 4686148 (1987-08-01), Havens
patent: 4698111 (1987-10-01), Havens
patent: 4824886 (1989-04-01), Schmidt

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