Gasket composition for cast polymerization
AssigneeMitsubishi Rayon Co., Ltd.
InventorsHiroyuki Ikeda, Suehiro Tayama
Life of this patent
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Abstract
Disclosed is a composition suitable for the preparation of a gasket for use in the production of shaped resin articles by cast polymerization. The composition is comprises (A) 100 weight parts of a vinyl chloride resin, (B) 30 to 70 weight parts of a carboxylic acid ester or phosphoric acid ester plasticizer, (C) 0.5 to 10 weight parts of an epoxy type plasticizer and (D) 0.1 to 5 weight parts of a barium- or zinc-containing stabilizer.
Claims16
A gasket composition for cast polymerization, which comprises (A) 100 parts by weight of a vinyl chloride resin, (B) 30 to 70 parts by weight of a plasticizer composed of at least one member selected from the group consisting of carboxylic acid esters and phosphoric acid esters, (C) 0.5 to 10 parts by weight of an epoxy type plasticizer selected from the group consisting of an epoxidized soybean oil having an oxirane value of 5 to 10% and an epoxidized fatty acid ester having an oxirane value of 3 to 6%, and (D) 0.1 to 5 parts by weight of a stabilizer composed of at least one member selected from the group consisting of barium-containing compounds and zinc-containing compounds.
A gasket for cast polymerization, which consists essentailly of (A) 100 parts by weight of a vinyl chloride resin, (B) 30 to 70 parts by weight of a plasticizer composed of at least one member selected from the group consisting of carboxylic acid esters and phosphorice acid esters, (C) 0.5 to 10 parts by weight of an epoxy type plasticizer selected from the group consisting of an epoxidized soybean oil having an oxirane value of 5 to 10% and an epoxidized fatty acid ester having an oxirane value of 3 to 6%, and (D) 0.1 to 5 parts by weight of a stabilizer composed of at least one member selected from the group consisting of barium-containing compounds and zinc-containing compounds.
Dependencies are inferred from the claim text.