Low haze thermoplastic polyurethane using co-chain extenders
    2.
    发明授权
    Low haze thermoplastic polyurethane using co-chain extenders 有权
    低雾度热塑性聚氨酯,使用共扩链剂

    公开(公告)号:US08357768B2

    公开(公告)日:2013-01-22

    申请号:US12085612

    申请日:2006-11-17

    IPC分类号: C08G18/32 C08G18/42 C08G18/76

    摘要: The present invention is a low haze thermoplastic polyurethane (TPU) comprising structural units of a diisocyanate; a diol and three different chain extenders (butanediol chain extender; a different linear diol co-chain-extender and a cyclic co-chain-ex-tender). The TPU has good combinations of light transmission and clarity, low temperature flexibility, and high moisture vapor transition rates compared to other commercial or known TPUs. The preferred composition is a TPU that is based on polycaprolactone as diol, MDI as the diisocyanate monomer, butanediol chain extender, 1,3 propanediol linear chain co-extender and cyclohexanedimethanol cyclic chain co-extenders, and has good clarity and tensile strength.

    摘要翻译: 本发明是包含二异氰酸酯的结构单元的低雾度热塑性聚氨酯(TPU) 二醇和三种不同的增链剂(丁二醇增链剂;不同的线性二醇共链增链剂和环状共链 - 脱标)。 与其他商业或已知的TPU相比,TPU具有良好的透光性和透明度,低温柔韧性和高水蒸气转变速率的组合。 优选的组合物是基于作为二醇的聚己内酯,作为二异氰酸酯单体的MDI,丁二醇增链剂,1,3-丙二醇线性链共扩链剂和环己烷二甲醇环状链共扩链剂的TPU,并且具有良好的透明度和拉伸强度。

    Compatibilized resin blends and the preparation thereof
    3.
    发明授权
    Compatibilized resin blends and the preparation thereof 有权
    增容树脂共混物及其制备方法

    公开(公告)号:US06469099B1

    公开(公告)日:2002-10-22

    申请号:US09712113

    申请日:2000-11-14

    IPC分类号: C08L7504

    摘要: The present invention is a blend of a polymeric hydrocarbon and a thermoplastic polyurethane which is compatibilized a polymeric hydrocarbon that contains low concentrations of isocyanate reactive group. The compatibilizer can be prepared by reacting a modified polymer having pendant or incorporated amine-reactive groups with a hydroxyl amine, a diamine, or a polyethermonoamine. The compatibilized blend may further include a non-TPU engineering thermoplastic to form compatible blends of the polymeric hydrocarbon and the non-TPU engineering thermoplastic. In this case, the TPU is used as a co-compatibilizer.

    摘要翻译: 本发明是聚合烃和热塑性聚氨酯的共混物,其与含有低浓度的异氰酸酯反应性基团的聚合烃相容。 增容剂可以通过使具有侧基或引入胺反应性基团的改性聚合物与羟胺,二胺或聚醚单胺反应来制备。 相容化的共混物可以进一步包括非TPU工程热塑性塑料以形成聚合烃和非TPU工程热塑性材料的相容的共混物。 在这种情况下,TPU用作共增容剂。