Polyvinyl chloride resin composition for powder molding
AssigneeSumitomo Chemical Company, Limited
InventorsToshio Igarashi, Akira Wakatsuki, Yuu Shida
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Abstract
Disclosed is a polyvinyl chloride resin powder composition for rotational molding, which is prepared by dry-blending a plasticizer and a stabilizer with a polyvinyl chloride resin followed by incorporating from 0.1 to 5 parts by weight, to 100 parts by weight of the polyvinyl chloride resin, of a finely divided polyvinyl chloride resin having a viscosity average polymerization degree of from 2000 to 5000 into the resulting dry blend. Also disclosed is a method of producing a molded article by subjecting the composition to rotational molding. The composition has good powder flowability for rotational molding, and the molded article from the composition is free from pin holes and blocks on the surface thereof.
Claims16
A polyvinyl chloride resin powder composition for rotational molding, which is prepared by dry-blending a plasticizer and a stabilizer with a polyvinyl chloride resin followed by incorporating from 1 to 5 parts by weight, to 100 parts by weight of the polyvinyl chloride resin, of a finely divided polyvinyl chloride resin having a viscosity average polymerization degree of from 3000 to 4000 into the resulting dry blend.
A method of producing a molded article, in which a polyvinyl chloride resin powder composition as prepared by dry-blending a plasticizer and a stabilizer with a polyvinyl chloride resin followed by incorporating from 1 to 5 parts by weight, to 100 parts by weight of the polyvinyl chloride resin, of a finely divided polyvinyl chloride resin having a viscosity average polymerization degree of from to 3000 to 4000 into the resulting dry blend is molded by rotational molding.
Dependencies are inferred from the claim text.