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Fabric softening laundry detergent

  • US 8,177,858 B2
  • Filed: 06/30/2011
  • Issued: 05/15/2012
  • Est. Priority Date: 02/01/2008
  • Status: Active Grant
First Claim
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1. A laundry detergent composition comprising from about 5% to about 90%, by weight of the composition, of water and having a pH of from about 6 to about 11, wherein the composition further comprises:

  • a) from about 0.02% to about 2%, by weight of the composition, of a polymer having a number average molecular weight of from about 700,000 to about 4,000,000 and comprising monomeric units, wherein the monomeric units are derived from monomers, said monomers comprising;

    i) at least 50%, by mole, of nonionic monomers selected from acrylamide, N,N-dialkyl acrylamide, methacrylamide, N,N-dialkylmethacrylamide, hydroxyalkyl acrylate and vinyl pyrrolidone, vinyl acetate, vinyl alcohol, and mixtures thereof;

    ii) from about 3% to about 30%, by mole, of cationic monomers selected from methacrylamidoalkyl trialkylammonium chloride, acrylamidoalkylltrialkylammonium chloride, and mixtures thereof;

    iii) from about 1% to about 20%, by mole, of anionic monomers selected from acrylic acid, methacrylic acid, maleic acid, vinyl sulfonic acid, styrene sulfonic acid, acrylamidopropylmethane sulfonic acid (AMPS), salts thereof, and mixtures thereof;

    wherein the overall mole ratio of the monomers, according to the following equation,

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