| 摘要 |
PURPOSE:To obtain a modifier effective in uniformly eliminating the surface gloss of a molded article without damaging the characteristic features of the resin when compounded to a thermoplastic resin, by melting and kneading mica particles, a fatty acid (bis)amide and an acrylonitrile-styrene copolymer. CONSTITUTION:The objective modifier is composed of (A) 5-50pts.(wt.) of mica particles having particle diameter of preferably <=220mum, (B) 1-30pts. of a fatty acid amide or a fatty acid bisamide, e.g. stearamide, ethylenebis(stearamide), etc., and (C) 50-90pts. of an acrylonitrile-styrene copolymer having an acrylonitrile/styrene ratio of preferably 15/85-35/65wt. The modifier is produced by kneading the component A with the component B at 100-200 deg.C preferably with a mixer, adding the component C to the mixture and further kneading under melting. The obtained modifier is added to a thermoplastic resin (preferably a resin containing rubbery polymer, e.g. ABS resin) in an amount of 1-30wt%.
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