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Hard surface cleaning compositions comprising phosphinosuccinic acid adducts and methods of use

  • US 9,994,799 B2
  • Filed: 04/24/2014
  • Issued: 06/12/2018
  • Est. Priority Date: 09/13/2012
  • Status: Active Grant
First Claim
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1. A detergent composition comprising:

  • a phosphinosuccinic acid derivative comprising a phosphonosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts;

    a water soluble polymer selected from the group consisting of a polycarboxylic acid and hydrophobically modified polycarboxylic acid; and

    from 60-90 wt % of an alkalinity source comprising an alkali metal hydroxide, metasilicate, and/or silicate,wherein a use solution of the detergent composition has a pH between about 10 and 13.5;

    wherein the detergent composition does not contain an alkali metal carbonate and reduces the formation, precipitation, and/or deposition of hard water scale;

    wherein the use solution of the detergent composition comprises about 1,000-4,000 ppm of the alkalinity source, from about 1 ppm to about 500 ppm of the water soluble polymer, and about 0.1-400 ppm of the phosphinosuccinic acid derivative; and

    the composition has more of the alkalinity source in weight percentage than of the phosphonosuccinic acid derivative.

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