High molecular weight (co)polyamide from diamino-alcohol
    1.
    发明授权
    High molecular weight (co)polyamide from diamino-alcohol 失效
    来自二氨基醇的高分子量(共)聚酰胺

    公开(公告)号:US5068311A

    公开(公告)日:1991-11-26

    申请号:US538780

    申请日:1990-06-15

    摘要: The invention relates to high molecular weight thermoplastically deformable branched aliphatic polyamides prepared by polycondensation of lactams and/or polyamide-forming diamine/dicarboxylic acid reaction mixtures and/or amino acids in the presence of small amounts of specific diamino-alcohols and approximately equivalent amounts of polycarboxylic acids (preferably dicarboxylic acids), and to a process for their preparation, which is distinguished by considerably shortened polycondensation times, without crosslinked products being formed. If appropriate, the process additionally utilizes a solid phase after-condensation, in which rapid further condensation to products which are indeed branched but are soluble in m-cresol and have an increased melt viscosity takes place.

    摘要翻译: 本发明涉及通过在少量特定二氨基醇存在下内酰胺和/或形成聚酰胺的二胺/二羧酸反应混合物和/或氨基酸进行缩聚而制备的高分子量热塑性可变支化脂族聚酰胺和大约等量的 多元羧酸(优选二羧酸),以及它们的制备方法,其特征在于显着缩短缩聚时间,没有形成交联产物。 如果合适,该方法另外使用固相缩合后,其中快速进一步冷凝到确实是支化但可溶于间甲酚并且具有增加的熔体粘度的产物。

    Flexible polyamide from dimer acid and bis-secondary diamine
    9.
    发明授权
    Flexible polyamide from dimer acid and bis-secondary diamine 失效
    来自二酸和二次二胺的柔性聚酰胺

    公开(公告)号:US5126429A

    公开(公告)日:1992-06-30

    申请号:US656594

    申请日:1991-02-19

    CPC分类号: C08G69/34

    摘要: This invention relates to amorphous, flexible elastomeric polyamides based on dimer fatty acids and special disecondary diamines which have a glass transition temperature below 10.degree. C., to the production of these elastomeric polyamides and to their use as rubbers, plasticizers and, in particular, high-impact modifiers for thermoplastics or as flexible segments for the synthesis of thermoplastic elastomers and as additives for other purposes.

    摘要翻译: 本发明涉及基于二聚脂肪酸和玻璃化转变温度低于10℃的特殊二元二胺的无定形柔性弹性聚酰胺,涉及这些弹性体聚酰胺的生产,以及它们用作橡胶,增塑剂,特别是, 用于热塑性塑料的高冲击改性剂或用于合成热塑性弹性体的柔性链段以及用于其它目的的添加剂。

    Free-flowing polyamide molding compounds and blends
    10.
    发明授权
    Free-flowing polyamide molding compounds and blends 失效
    自由流动的聚酰胺模塑化合物和共混物

    公开(公告)号:US5102935A

    公开(公告)日:1992-04-07

    申请号:US403133

    申请日:1989-09-05

    摘要: The invention relates to new, free-flowing polyamide molding compounds and blends, characterized in that they are prepared by mixing of polyamides known per se in the melt with low molecular weight, liquid-crystalline esters and/or ester amides corresponding to formula (I) and/or liquid-crystalline, oligomeric esters and/or ester amides corresponding to formula (II) and, optionally, other additives, at least one polymeric blending component being used as a further additive in the case of polyamide blends, and to the use of these liquid-crystalline (LC) additives I and/or II as flow promoters in polyamide molding compounds and blends and to a process for the production of the new polyamide molding compounds and blends. The invention also relates to the new oligomeric esters and/or ester amides corresponding to formula (II).

    摘要翻译: 本发明涉及新的自由流动的聚酰胺模塑料和共混物,其特征在于它们通过将熔体中本身已知的聚酰胺与对应于式(I)的低分子量,液晶酯和/或酯酰胺 )和/或对应于式(II)的液晶,低聚酯和/或酯酰胺和任选的其它添加剂,在聚酰胺共混物的情况下使用至少一种聚合共混组分作为另外的添加剂,并且 使用这些液晶(LC)添加剂I和/或II作为聚酰胺模塑料和共混物中的流动促进剂,以及生产新的聚酰胺模塑料和共混物的方法。 本发明还涉及对应于式(II)的新的低聚酯和/或酯酰胺。