Stable dispersions of polymers in polyfunctional compounds having a
plurality of active hydrogens
    5.
    发明授权
    Stable dispersions of polymers in polyfunctional compounds having a plurality of active hydrogens 失效
    聚合物在具有多个活性氢的多官能化合物中的稳定分散体

    公开(公告)号:US4500675A

    公开(公告)日:1985-02-19

    申请号:US472533

    申请日:1983-03-07

    申请人: Thomas E. Fisk

    发明人: Thomas E. Fisk

    CPC分类号: C08F220/36 C08F283/06

    摘要: A stable copolymer dispersion is prepared by addition copolymerization of (1) a monomeric adduct of an active hydrogen compound, e.g., a polyether polyol or polyether monool, and an ethylenically unsaturated N-chlorosulfonyl carbamyl compound such as acryloxyethylchlorosulfonylcarbamate or an unsaturated N-chlorocarbonyl carbamyl compound with (2) ethylenically unsaturated monomer(s), e.g., styrene or a mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound such as a polyether polyol. The molar ratio of carbamyl moiety to active hydrogen compound is preferably less than about 0.1:1. The resulting dispersion has a controlled particle size and a viscosity such that it is suitably employed in the production of polyurethane foams.

    摘要翻译: 通过(1)活性氢化合物的单体加合物例如聚醚多元醇或聚醚一元醇和烯属不饱和的N-氯磺酰基氨基甲酰基化合物如丙烯酰氧基乙基氯磺酰氨基甲酸酯或不饱和N-氯羰基氨基甲酰基 与(2)烯键式不饱和单体(例如苯乙烯或其与丙烯腈的混合物)的化合物,而(1)和(2)分散或溶解于过量的活性氢多官能化合物如聚醚多元醇中。 氨基甲酰部分与活性氢化合物的摩尔比优选小于约0.1:1。 所得到的分散体具有受控的粒度和粘度,使得它适合用于生产聚氨酯泡沫体。