Polyphenylene ether-olefin polymer compositions with improved properties
    2.
    发明授权
    Polyphenylene ether-olefin polymer compositions with improved properties 失效
    具有改进性能的聚苯醚 - 烯烃聚合物组合物

    公开(公告)号:US5258455A

    公开(公告)日:1993-11-02

    申请号:US918338

    申请日:1992-07-21

    IPC分类号: C08G65/48 C08L51/06 C08L71/12

    摘要: Polyphenylene ether-olefin polymer compositions having improved properties are obtained by first blending an acyl group- or electrophilic group-functionalized polyphenylene ether of relatively high molecular weight with a lower molecular weight unfunctionalized polyphenylene ether to form a blend of which the lower molecular weight polymer comprises about 45-60% by weight, subsequently blending with an electrophilic group- or acyl group-functionalized olefin polymer (respectively), preferably a glycidyl methacrylate-grafted EPDM copolymer, and finally blending with a curing agent such as hexamethylenediaminemonocarbamic acid.

    摘要翻译: 通过首先将较高分子量的酰基或亲电子官能化的聚亚苯基醚与较低分子量的未官能化的聚亚苯基醚共混以形成低分子量聚合物包含的共混物,得到具有改进性能的聚亚苯基醚 - 烯烃聚合物组合物 约45-60重量%,随后与亲电子基团或酰基官能化烯烃聚合物(分别)共混,优选甲基丙烯酸缩水甘油酯接枝的EPDM共聚物,最后与固化剂如六亚甲基二氨基氨基甲酰胺共混。

    Melt blends of polyesters
    4.
    发明授权
    Melt blends of polyesters 失效
    聚酯的熔融共混物

    公开(公告)号:US5171778A

    公开(公告)日:1992-12-15

    申请号:US749471

    申请日:1991-08-15

    IPC分类号: C08L67/02

    CPC分类号: C08L67/02

    摘要: A composition prepared by blending liquid crystalline polyesters and linear polyesters under reactive conditions in the presence of at least one poly(O- or N- epoxy alkyl substituted) cyclic amide, imide, or imidate; wherein the blend exhibits an anisotropic melt phase. Articles made from the composition have increased strength stiffness and improved drip characteristics. A preferred embodiment includes a polyalkylene terephthalate, a liquid crystalline polyester with structural units including p-benzoic acid and naphthoic acid, and triglycidyl isocyanurate.

    摘要翻译: 在至少一种聚(O-或N-环氧烷基取代的)环酰胺,酰亚胺或亚氨酸酯的存在下,在反应条件下共混液晶聚酯和线性聚酯制备的组合物; 其中所述共混物显示各向异性熔融相。 由组合物制成的制品具有增加的强度刚度和改善的滴水特性。 优选的实施方案包括聚对苯二甲酸亚烷基酯,具有包括对苯甲酸和萘甲酸的结构单元的液晶聚酯和异氰脲酸三缩水甘油酯。