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    • 86. 发明授权
    • Production process of polyphenylene ether composition
    • 聚苯醚组合物的生产工艺
    • US07544728B2
    • 2009-06-09
    • US11406253
    • 2006-04-19
    • Tadayuki IshiiKazuo Yoshida
    • Tadayuki IshiiKazuo Yoshida
    • C08K5/34C08K5/521
    • C08L71/12C08K5/005C08K5/523C08L25/00C08L2666/24
    • The present invention relates to a production process of polyphenylene ether composition comprising (A-1) a polyphenylene ether, (A-2) a polystyrene, (A-3) an ester phosphate, (B) a hindered amine light stabilizer, and (C) an ultraviolet absorber. The feature of the present invention is melt compounding a part of raw materials to obtain a pre-mixture at Step 1, and melt compounding the pre-mixture and the rest of the raw materials at Step 2. A polyphenylene ether composition which has a good light-discoloration resistance and causes little unmelted portion, and to a molded article formed from the polyphenylene ether composition can be obtained according to the production process of the present invention.
    • 本发明涉及聚苯醚组合物的制造方法,其包含(A-1)聚苯醚,(A-2)聚苯乙烯,(A-3)磷酸酯,(B)受阻胺光稳定剂和( C)紫外线吸收剂。 本发明的特征是在步骤1中将一部分原料熔融混合以获得预混合物,并在步骤2熔融混合预混物和其余原料。一种具有良好的聚苯醚组合物 根据本发明的制造方法,可以获得耐光变色性,并且几乎不发生未熔化部分,并且可以获得由聚苯醚组合物形成的模塑制品。