Vinyl chloride resin composition
AssigneeMitsubishi Monsanto Chemical Company
InventorsHaruaki Kakitani, Satoru Sugino
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Abstract
A crosslinkable vinyl chloride resin composition, comprising; a vinyl chloride copolymer containing hydroxyl groups or a substituent convertible to hydroxyl groups in the copolymer, a polyisocyanate compound as a crosslinking agent and a heat stabilizer composed principally of a salt of a metal of Group IIa in the Periodic Table.
Claims14
A crosslinkable vinyl chloride resin composition comprising;
- a vinyl chloride copolymer containing from 90 to 99.5 wt.% of vinyl chloride and from 10 to 0.5 wt.% of a hydroxyl group containing comonomer, from 1 to 10 parts by weight of a polyisocyanate compound per 100 weight parts of said vinyl chloride copolymer, and a stabilizer composed principally of salt of a metal of Group IIa in the Periodic Table.
A method of simultaneously crosslinking and molding a polyvinyl chloride composition in the homogeneous state which comprises blending a vinyl chloride copolymer containing from 90 to 99.5 wt.% of vinyl chloride and from 10 to 0.5 wt.% of a hydroxyl group containing comonomer with from 1 to 10 parts by weight of a polyisocyanate compound per 100 weight parts of said vinyl chloride copolymer and a stabilizer composed prinicipally of a salt of a metal of Group IIa in the Periodic Table and subsequently molding this blended mixture.
Dependencies are inferred from the claim text.