Rapidly crystallizing polyester compositions
    62.
    发明授权
    Rapidly crystallizing polyester compositions 失效
    快速结晶聚酯组合物

    公开(公告)号:US4163100A

    公开(公告)日:1979-07-31

    申请号:US889710

    申请日:1978-03-24

    IPC分类号: C08K5/42 C08G63/70 C08G63/76

    CPC分类号: C08K5/42 Y10S260/35

    摘要: The present invention is concerned with polyalkylene terephthalate molding compositions which have improved crystallization behavior as a result of blending with selected sulphonic acid esters. The addition of an effective amount of these esters, generally between about 0.5 to 30 wt. %, improves the rate of crystallization of polyalkylene terephthalates such as polyethylene terephthalate thus permitting the use of shorter mold residence and lower mold temperatures in injection molding.The invention is also concerned with a process for improving the crystallization behavior of polyalkylene terephthalates by melt blending them with selected sulphonic acid esters.

    摘要翻译: 本发明涉及由于与选择的磺酸酯共混而具有改进的结晶行为的聚对苯二甲酸亚烷基酯模塑组合物。 加入有效量的这些酯,通常为约0.5至30wt。 %,提高聚对苯二甲酸亚烷基酯如聚对苯二甲酸乙二醇酯的结晶速率,从而允许在注射成型中使用较短的模具停留和较低的模具温度。