Preparation of carboxyl-containing polymers
    25.
    发明授权
    Preparation of carboxyl-containing polymers 失效
    含羧基聚合物的制备

    公开(公告)号:US4621127A

    公开(公告)日:1986-11-04

    申请号:US777328

    申请日:1985-09-18

    CPC分类号: C08F20/04 C08F2/10

    摘要: Carboxyl-containing polymers which are water-soluble at least in the neutralized form are prepared by a method in which a monoethylenically unsaturated C.sub.3 -C.sub.5 -carboxylic acid is polymerized in the presence or absence of a carboxyl-free copolymerizable ethylenically unsaturated monomer in aqueous solution in the presence of polymerization initiator and of from 0.01 to 5% by weight, based on the monomers, of an inorganic acid of phosphorus in which the phosphorus has an oxidation state of from 1 to 4, its water-soluble salts, a water-soluble --PO(OH).sub.2 -containing compound and/or its water-soluble salts and, if required, a polymerization regulator. Virtually colorless or only slightly colored polymer solutions are obtained.

    摘要翻译: 至少以中和形式具有水溶性的含羧基聚合物是通过在存在或不存在无羧基的可共聚烯键式不饱和单体的水溶液中聚合单烯属不饱和C3-C5-羧酸的方法制备的 在聚合引发剂存在下,基于单体为0.01〜5重量%的磷的氧化态为1〜4的磷的无机酸,其水溶性盐,水溶性盐, 可溶性的含PO(OH)2的化合物和/或其水溶性盐,如果需要,可以使用聚合调节剂。 获得几乎无色或仅有微量的聚合物溶液。

    Dye transfer inhibitors for detergents
    29.
    发明授权
    Dye transfer inhibitors for detergents 失效
    用于洗涤剂的染料转移抑制剂

    公开(公告)号:US5830844A

    公开(公告)日:1998-11-03

    申请号:US750478

    申请日:1996-12-17

    IPC分类号: C11D3/00 C11D3/37

    CPC分类号: C11D3/0021 C11D3/3776

    摘要: Water-insoluble, crosslinked polymers containing polymerized units of 1-vinylpyrrolidone and/or 1-vinylimidazoles of the formula ##STR1## where R, R.sup.1 and R.sup.2 are identical or different and each is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, or of 4-vinylpyridine N-oxide, in finely divided form, at least 90% by weight of the polymers having a particle size from 0.1 to 500 .mu.m, are useful as detergent additives for inhibiting the transfer of dye during the wash.

    摘要翻译: PCT No.PCT / EP95 / 02111 Sec。 371日期:1996年12月17日 102(e)日期1996年12月17日PCT提交1995年6月3日PCT公布。 出版物WO95 / 35360 日期1995年12月28日含有式(I)的1-乙烯基吡咯烷酮和/或1-乙烯基咪唑的聚合单元的水不溶性交联聚合物,其中R,R 1和R 2相同或不同,各自为氢,C1- C4-烷基或苯基,或4-乙烯基吡啶N-氧化物,以细碎形式,至少90重量%的粒径为0.1至500μm的聚合物可用作抑制转移的洗涤剂添加剂 洗涤期间染色。