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    • 10. 发明授权
    • Agglomerated, finely divided, crosslinked vinylimidazole copolymers,
preparation thereof, and use thereof
    • 聚集的,细碎的,交联的乙烯基咪唑共聚物,其制备及其用途
    • US5804662A
    • 1998-09-08
    • US894364
    • 1997-08-19
    • Christian SchadeKarl-Heinrich Schneider
    • Christian SchadeKarl-Heinrich Schneider
    • B01F17/00B01F17/52C08F2/24C08F2/32C08F26/06C08F226/06C11D3/00C11D3/37
    • C11D3/0021B01F17/0042C08F26/06C11D3/3776
    • Agglomerated, finely divided, crosslinked vinylimidazole copolymers obtainable by free-radically initiated polymerization of N-vinylimidazoles of the formula ##STR1## where R, R.sup.1 and R.sup.2 are identical or different and each is H, C.sub.1 -C.sub.4 -alkyl or phenyl, with at least one crosslinker, optionally other water-soluble monoethylenically unsaturated monomers, and optionally water-insoluble monoethylenically unsaturated monomers in the aqueous phase of a water-in-oil emulsion in the presence of at least one emulsifier comprising block copolymers of the type AB or ABA or comb copolymers constructed from A and B, where A is a hydrophobic polymer block having a molecular weight of >500 g/mol and B is a hydrophilic polymer block having a molecular weight of >500 g/mol, to stabilize the water-in-oil monomer emulsion, azeotropic distillative removal of the water from the water-in-oil polymer suspension, and isolation of the polymers, processes for preparing said agglomerated, finely divided, crosslinked vinylimidazole copolymers, and use of the copolymers in detergents to inhibit the transfer of dye during the wash.
    • PCT No.PCT / EP96 / 00575 Sec。 371日期1997年8月19日 102(e)日期1997年8月19日PCT提交1996年2月10日PCT公布。 公开号WO96 / 26229 日期1996年8月29日通过自由基引发的式(I)的N-乙烯基咪唑聚合得到的聚集的细分交联乙烯基咪唑共聚物,其中R,R 1和R 2相同或不同,各自为H,C1- 在至少一种乳化剂的存在下,在至少一种乳化剂存在下,与至少一种交联剂,任选的其它水溶性单烯属不饱和单体和任选的水不溶性单烯属不饱和单体在油包水乳液的水相中, 由A和B构成的AB型或ABA型或梳状共聚物的嵌段共聚物,其中A为分子量> 500g / mol的疏水性聚合物嵌段,B为分子量> 500g / mol,以稳定油包水单体乳液,共沸蒸馏从油包水聚合物悬浮液中除去水,并分离聚合物,制备所述附聚的精细的方法 分离的交联乙烯基咪唑共聚物,以及洗涤剂中共聚物在洗涤过程中抑制染料转移的用途。