Phosphate-free detergent having a reduced tendency towards incrustation
    1.
    发明授权
    Phosphate-free detergent having a reduced tendency towards incrustation 失效
    不含磷酸盐的洗涤剂具有降低的结垢倾向

    公开(公告)号:US4919845A

    公开(公告)日:1990-04-24

    申请号:US378447

    申请日:1989-07-07

    IPC分类号: C11D3/12 C11D3/36

    摘要: A detergent composition containing by weight (a) from 5 to 35% of an anionic or nonionic surfactant, (b) from 10 to 40% of finely crystalline zeolite, (c) from 4 to 20% of alkali metal silicate or carbonate and from 0.1 to 5% of (d) aminoalkanephosphonate or (d2) copolymer of (meth)acrylic acid and maleic acid and (e) from 5 to 80% of other detergent constituents is considerably improved in regard to its incrustation-inhibiting properties if it additionally contains (f) from 0.05 to 1% (based on the free acid) of 1-hydroxyethane-1,1-diphosphonic acid in the form of its alkali metal salt. The weight ratio of (d1) to (f) is from 3:1 to 1:6 and of (d2) to (f) is from 40:1 to 2:1.

    摘要翻译: 一种洗涤剂组合物,其含有(a)5至35%的阴离子或非离子表面活性剂,(b)10至40%的细晶沸石,(c)4至20%的碱金属硅酸盐或碳酸盐和 (d)氨基烷基膦酸酯的0.1〜5%或(甲基)丙烯酸和马来酸的(d2)共聚物和(e)5〜80%的其他洗涤剂成分在其结垢抑制性能方面大大改善, 含有(f)以其碱金属盐形式的1-羟基乙烷-1,1-二膦酸的0.05至1%(基于游离酸)。 (d1)至(f)的重量比为3:1至1:6,(d2)至(f)的重量比为40:1至2:1。