Molecular weight control of polyurethane elastomers
    1.
    发明授权
    Molecular weight control of polyurethane elastomers 失效
    聚氨酯弹性体的分子量控制

    公开(公告)号:US4071505A

    公开(公告)日:1978-01-31

    申请号:US622594

    申请日:1975-10-15

    CPC分类号: C08G18/2815 C08G18/10

    摘要: Polyurethane elastomers are prepared by reacting organic polyisocyanates with organic polyhydroxyl compounds and a mono-functional secondary hydroxyl group containing chain terminator. The chain terminator can be added to the polyhydroxyl compound prior to the reaction with the polyisocyanate.

    摘要翻译: 聚氨酯弹性体通过有机多异氰酸酯与有机多羟基化合物和含单官能的含羟基的链终止剂反应来制备。 在与多异氰酸酯反应之前,可以将链终止剂加入到多羟基化合物中。

    Method of producing polyurethanes with increased resistance to abrasion
    2.
    发明授权
    Method of producing polyurethanes with increased resistance to abrasion 失效
    生产具有增加耐磨性的聚氨酯的方法

    公开(公告)号:US4206102A

    公开(公告)日:1980-06-03

    申请号:US723376

    申请日:1976-09-15

    IPC分类号: C08K3/04 C08L75/04 C08L91/00

    CPC分类号: C08L75/04 C08K3/04

    摘要: Abrasion resistant polyurethane elastomers using a combination of a waxing agent, a powdered mineral type lubricant and a polyhalogenated polyalkylene powder are disclosed. Although all three types are known to impart abrasion resistance to polyurethane elastomers, a synergistic effect has been found in the use of these additives such that better abrasion resistance is found with smaller quantities of additives.

    摘要翻译: 公开了使用上蜡剂,粉状矿物型润滑剂和多卤代聚亚烷基粉末的组合的耐磨聚氨酯弹性体。 虽然已知所有三种类型都赋予聚氨酯弹性体耐磨性,但是在使用这些添加剂时已经发现了协同效应,因此使用较少量的添加剂可以获得更好的耐磨性。