Method for producing saturated polyester
    34.
    发明授权
    Method for producing saturated polyester 失效
    饱和聚酯的制造方法

    公开(公告)号:US5306787A

    公开(公告)日:1994-04-26

    申请号:US797033

    申请日:1991-11-25

    IPC分类号: C08G18/42 C08G63/16 C08F20/00

    摘要: A method for producing a high molecular weight saturated polyester comprising adding to a saturated polyester with the terminal group being substantially hydroxyl group, having a number average molecular weight of 5,000 or more and being in the molten state, diisocyanate containing isocyanate group the amount of which corresponds to 1/10 to 2 equivalents of the amount of the hydroxyl group.

    摘要翻译: 一种高分子量饱和聚酯的制造方法,其特征在于,向饱和聚酯中加入数均分子量为5000以上且处于熔融状态的端基基本上为羟基的饱和聚酯,其含有异氰酸酯基的二异氰酸酯的量为 相当于羟基量的1/10〜2当量。

    Curable resinous composition
    39.
    发明授权
    Curable resinous composition 失效
    可固化的树脂组合物

    公开(公告)号:US3993663A

    公开(公告)日:1976-11-23

    申请号:US536914

    申请日:1974-12-27

    CPC分类号: C07D493/10 C08F20/28 C08G4/00

    摘要: This invention relates to a curable resinous composition prepared by reacting 1 mol of (a) an unsaturated polycycloacetal, 0.1 to 3 mols of (b) an ester of polyhydric alcohol/unsaturated monocarboxylic acid, having an alcoholic hydroxyl group and a polymerizable unsaturated bond selected from the group of acryl and methacryl groups in the same molecule, and 0.1 to 2.9 mols (per hydroxyl group in component b) of (c) a polyhydroxy compound.

    摘要翻译: 本发明涉及一种可固化树脂组合物,其通过使1mol(a)不饱和多环缩醛,0.1至3mol(b)具有醇羟基和可聚合不饱和键的多元醇/不饱和一元羧酸酯选择 来自相同分子中的丙烯酸酯基和甲基丙烯酰基的基团,和(c)多羟基化合物的0.1至2.9摩尔(组分b中的每个羟基)。