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Laundry detergent compositions comprising cationic surfactants and modified polyamine soil dispersents

  • US 6,004,922 A
  • Filed: 11/03/1998
  • Issued: 12/21/1999
  • Est. Priority Date: 05/03/1996
  • Status: Expired due to Term
First Claim
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1. A laundry detergent composition comprising:

  • a) at least 0.01% by weight, of a cationic surfactant having the formula;

    ##STR43## wherein R is C12 -C14 alkyl and X is a water soluble cation;

    b) at least 0.01% by weight, a water-soluble or dispersible, modified polyamine cotton soil release agent comprising a polyamine backbone prior to modification via quaternization, substitution, or oxidation corresponding to the formula;

    ##STR44## having a modified polyamine formula V.sub.(n+1) Wm Yn Z, said polyamine backbone prior to modification has a molecular weight greater than about 200 daltons, whereini) V units arc terminal units having the formula;

    ##STR45## ii) W units are backbone units having the formula;

    ##STR46## iii) Y units are branching units having the formula;

    ##STR47## iv) Z units are terminal units having the formula;

    ##STR48## wherein backbone linking R units are C2 -C12 alkylene;

    R1 is C2 -C6 alkylene, and mixtures thereof;

    E units are selected from the group consisting of hydrogen, C1 -C22 alkyl, --(CH2)p CO2 M, --(CH2)q SO3 M, --CH(CH2 CO2 M)CO2 M, --(C2)p PO3 M, --(R1 O)x B, and mixtures thereof;

    provided that when any E unit of a nitrogen is a hydrogen, said nitrogen is not also an N-oxide;

    B is hydrogen, C1 -C6 alkyl, --(CH2)q SO3 M, --(CH2)p CO2 M, --(CH2)q (CHSO3 M)CH2 SO3 M, --(CH2)q -(CHSO2 M)CH2 SO3 M, --(CH2)p PO3 M, --PO3 M, and mixtures thereof, provided when B is an Ionizable unit selected from the group consisting of --(CH2)q SO3 M, --(CH2)p PO3 M, --(CH2)q (CHSO3 M)--CH2 SO3 M, --(CH2)q (CHSO2 M)CH2 SO3 M, --(CH2)p PO3 M, --PO3 M, and mixtures thereof, at least one backbone nitrogen is quaternized;

    M is hydrogen or a water soluble cation in sufficient amount to satisfy charge balance;

    X is a water soluble anion;

    m has the value from 4 to about 400;

    n has the value from 0 to about 200;

    p has the value from 1 to 6, q has the value from 0 to 6;

    x has the value from 11 to 100; and

    c) the balance carrier and adjunct ingredients.

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