Soft polyurethane elastomer containing isocyanurate ring
    1.
    发明授权
    Soft polyurethane elastomer containing isocyanurate ring 失效
    含有异氰脲酸酯环的软质聚氨酯弹性体

    公开(公告)号:US4124573A

    公开(公告)日:1978-11-07

    申请号:US763900

    申请日:1977-01-31

    IPC分类号: C08G18/09 C08G18/18 C08G18/48

    摘要: A soft polyurethane elastomer containing isocyanurate ring prepared by reacting polyoxypropylene polyol having an OH equivalent molecular weight of about 500-3,000, and a functionality of about 2-5, and polyisocyanate compound in the presence of tertiary amine catalyst, and if desired further combined with organic tin catalyst. This process is advantageous in facilitation of material control during curing reaction, low exothermicity and high thermal stability of the resulting polymer. Further the properties of the polymer are improved by using ethyleneoxide addition polyoxypropylene polyol instead of the above polymer and a specific tertiary amine as a catalyst. The elastomer thus prepared is significantly suitable for tire filling material.

    摘要翻译: 一种含有异氰脲酸酯环的软质聚氨酯弹性体环,其通过在叔胺催化剂存在下使具有约500-3,000的OH当量分子量和约2-5官能度的聚氧丙烯多元醇和多异氰酸酯化合物反应制备,如果需要, 有机锡催化剂。 该方法有利于促进固化反应期间的材料控制,所得聚合物的低放热性和高热稳定性。 此外,通过使用环氧乙烷加成聚氧丙烯多元醇代替上述聚合物和特定的叔胺作为催化剂,改进了聚合物的性能。 如此制备的弹性体显着适用于轮胎填充材料。