Process for the preparation of a cellular polyurethane
    2.
    发明授权
    Process for the preparation of a cellular polyurethane 失效
    制备细胞聚氨酯的方法

    公开(公告)号:US4500656A

    公开(公告)日:1985-02-19

    申请号:US594054

    申请日:1984-03-28

    IPC分类号: C08G18/32 C08G18/65 C08G18/14

    摘要: The present invention relates to a process for the preparation of a cellular polyurethane by the reaction of(A) a polyisocyanate with(B) an isocyanate reactive component containing(1) at least one component having a molecular weight of about 60-2000 and a functionality of 2 to 8, containing isocyanate reactive groups,(2) optionally at least one component having a molecular weight of about 2000 to 12,000 and a functionality of 2 to 8 containing isocyanate reactive groups.(3) about 0.1 to 30 parts, based on 100 parts of (B1)+(B2), of a liquid adduct of an amine and carbon dioxide, and(4) optionally water, blowing agents, foam stabilizers, catalysts and other auxiliary agents and additives,characterized in that the liquid adduct of amine and carbon dioxide is liquid at 20.degree. C., optionally contains water, and is an adduct of carbon dioxide and an amine having at least one amino group and containing at least one primary, secondary or tertiary hydroxyl group, which amine may be solid or liquid at 20.degree. C.

    摘要翻译: 本发明涉及通过(A)多异氰酸酯与(B)异氰酸酯反应性成分的反应制备细胞聚氨酯的方法,所述异氰酸酯反应性成分含有(1)至少一种分子量为约60-2000的成分和 含有异氰酸酯反应性基团的官能度为2至8,(2)任选地至少一种分子量为约2000至12,000且官能度为2至8的含异氰酸酯反应性基团的组分。 (3)约0.1至30份,基于100份(B1)+(B2)的胺和二氧化碳的液体加合物,和(4)任选的水,发泡剂,泡沫稳定剂,催化剂和其它助剂 试剂和添加剂,其特征在于胺和二氧化碳的液体加合物在20℃下为液体,任选地含有水,并且是二氧化碳和具有至少一个氨基并且含有至少一个伯, 二羟基或叔羟基,该胺在20℃下可以是固体或液体。