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    • 3. 发明授权
    • Process for producing amorphous thermoplastic resin composition
    • 无定型热塑性树脂组合物的制造方法
    • US5672679A
    • 1997-09-30
    • US566319
    • 1995-12-01
    • Kiyoji TakagiKoji NishidaMegumi Kojima
    • Kiyoji TakagiKoji NishidaMegumi Kojima
    • B29B7/84C08J3/00C08F6/10
    • C08J3/005B29B7/84C08J3/00
    • In a process for producing an amorphous thermoplastic resin composition comprising melt-kneading at least one amorphous thermoplastic resin, an improvement comprising melt-kneading the amorphous thermoplastic resin in the presence of not less than 1% by weight, based on the amorphous thermoplastic resin, of an organic solvent in a kneader having a vent hole(s) while maintaining at least one vent hole of the kneader under reduced pressure by means of an evacuator to remove the organic solvent so as to reduce the organic solvent content in the final composition to less than 1% by weight. Thermal deterioration of the resin during melt-kneading can be inhibited to provide a resin composition having well-balanced impact resistance and heat resistance and excellent hue.
    • 在制造熔融捏合至少一种无定形热塑性树脂的无定形热塑性树脂组合物的方法中,包括以不小于1重量%的非晶态热塑性树脂的存在下熔融捏合无定形热塑性树脂的改进, 在具有通气孔的捏合机中,通过抽气机在减压下保持捏合机的至少一个通气孔以除去有机溶剂,从而将最终组合物中的有机溶剂含量降低至 小于1重量%。 可以抑制熔融捏合过程中的树脂的热劣化,提供具有良好平衡的耐冲击性和耐热性以及优异的色调的树脂组合物。