申请人:BASF Aktiengesellschaft
公开号:US04980088A1
公开(公告)日:1990-12-25
Pulverulent and liquid detergents contain (1) one or more anionic surfactants, one or more nonionic surfactants or mixtures thereof and (2) copolymers in amounts of from 0.1 to 15% by weight preparable by copolymerization of (a) from 10 to 55 mol % of a 1,2-di-C.sub.1 -C.sub.4 -alkoxyethylene, (b) from 10 to 60 mol % of a monoethylenically unsaturated dicarboxylic anhydride of from 4 to 8 carbon atoms, (c) from 0 to 60 mol % of a monoethylenically unsaturated C.sub.3 -C.sub.8 -monocarboxylic acid and (d) from 0 to 20 mol % of another monoethylenically unsaturated monomer and subsequent hydrolysis of the anhydride groups of the copolymerized monomer (b) or reaction of these groups with an alcohol or an amine. Preferred copolymers contain 1,2 dimethoxyethylene as the (a) monomer, maleic acid as the (b) monomer, and acrylic acid as the (c) monomer.
粉末和液体洗涤剂含有(1)一种或多种阴离子表面活性剂,一种或多种非离子表面活性剂或其混合物,以及(2)共聚物,其量为0.1至15重量%,可通过共聚反应制备(a)10至55摩尔%的1,2-二-C.sub.1-C.sub.4-烷氧基乙烯,(b)10至60摩尔%的4至8个碳原子的单乙烯不饱和二羧酸酐,(c)0至60摩尔%的单乙烯不饱和C.sub.3-C.sub.8-单羧酸和(d)0至20摩尔%的另一种单乙烯不饱和单体的共聚物,然后水解共聚单体(b)的酐基或将这些基团与醇或胺反应。首选的共聚物包含1,2-二甲氧基乙烯作为(a)单体,马来酸作为(b)单体和丙烯酸作为(c)单体。