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    • 15. 发明授权
    • Process for the manufacture of low gloss resins
    • 低光泽树脂制造工艺
    • US5536780A
    • 1996-07-16
    • US110142
    • 1993-08-20
    • Qamar BhatiaJack HillRobert HossanWilliam PecakRobert Wildi
    • Qamar BhatiaJack HillRobert HossanWilliam PecakRobert Wildi
    • C08J3/00C08L25/12C08L69/00C08J3/22C08L33/20
    • C08L69/00C08J3/005
    • A process for making reduced gloss thermoplastic resin compositions is provided. The process involves compounding a nitrile polymer with an electrophilic reagent to form a polymeric gel compound, blending the polymeric gel compound with a first thermoplastic resin and a weight ratio of between 5:1 and 0.5:1 to make a concentrate comprising gels dispersed in the first thermoplastic resin, and admixing the concentrate with a second thermoplastic resin produced the desired composition, wherein the concentrate is used at a level of from 2 to 60 percent by weight based on the total weight of the composition. The process provides improved product consistency, and consistently yields a product exhibiting reduced gloss and high levels of impact strength with a uniformly dispersed concentration of polymeric gels therein. The compositions are useful in making molded articles exhibiting consistent reduced gloss and high impact strengths.
    • 提供一种制备减少光泽的热塑性树脂组合物的方法。 该方法包括将腈聚合物与亲电试剂混合以形成聚合物凝胶化合物,将聚合物凝胶化合物与第一热塑性树脂混合,并且重量比为5:1至0.5:1以制备包含分散在 第一热塑性树脂,并将浓缩物与产生所需组合物的第二热塑性树脂混合,其中基于组合物的总重量,浓缩物的用量为2-60重量%。 该方法提供了改进的产品一致性,并且一致地产生具有均匀分散的聚合物凝胶浓度的光泽降低和冲击强度高的产品。 所述组合物可用于制备具有一致的降低光泽度和高冲击强度的模塑制品。