Weather-resistant polyoxymethylene composition and molded article thereof
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsKatsuhiko Takaya, Shuichiro Kono
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Abstract
A polyoxymethylene composition useful for producing weather-resistant molded articles comprising 60-95% by weight of a polyoxymethylene, a methacrylic acid ester polymer, and a pigment, a dye or a mixture thereof. The weather-resistant molded articles obtained therefrom.
Claims12
A polyoxymethylene molded article having methacrylic acid ester polymer particles finely dispersed in a polyoxymethylene matrix, wherein the shape of said particles changes gradually into lamellas as the position of said particles approaches the surface of said article, the molded article being obtained by molding a weather-resistant polyoxymethylene composition comprising 60-95% by weight of a polyoxymethylene and 5-40% by weight of a methacrylic acid ester polymer and 0.5-4% by weight of a pigment, a dye or a mixture thereof, through a die at a shear rate of 10.sup.2 -10.sup.5 sec.sup.-1.
Dependencies are inferred from the claim text.