Block copolyacetals, preparation thereof and use thereof in detergents
and cleaners
    8.
    发明授权
    Block copolyacetals, preparation thereof and use thereof in detergents and cleaners 失效
    封闭共聚缩醛,其制备方法及其在洗涤剂和清洁剂中的应用

    公开(公告)号:US5466762A

    公开(公告)日:1995-11-14

    申请号:US397051

    申请日:1995-03-13

    摘要: There are described block copolyacetals obtainable by cationically initiated polyaddition of(A) polyacetals containing acetaldehyde acetal units and having at least 2 OH groups in the molecule and(B) polyacetals containing acetaldehyde acetal units and having at least 2 vinyl ether groups in the molecule.in a molar ratio of (A):(B) of from 2:1 to 1:2, processes for preparing the block copolyacetals by cationically initiated polyaddition of (A) and (B), and the use of the block polyacetals as additament to reduced-phosphate and phosphate-free detergents and cleaners and as low-foam surfactants in dishwashing compositions.

    摘要翻译: 描述了通过阳离子引发的(A)含有乙醛缩醛单元的聚缩醛并且在分子中具有至少2个OH基团并且(B)含有乙醛缩醛单元的聚缩醛并且在分子中具有至少2个乙烯基醚基团的聚缩醛获得的嵌段共聚缩醛。 (A):(B)的摩尔比为2:1至1:2,通过(A)和(B)的阳离子引发加聚制备嵌段共聚缩醛的方法,以及嵌段聚缩醛作为添加剂的用途 至减少磷酸盐和无磷酸盐的洗涤剂和清洁剂以及作为洗碗组合物中的低泡表面活性剂。