Laundry detergent compositions containing a polymer for fabric appearance improvement
AssigneeThe Procter & Gamble Company
InventorsRajan Keshav Panandiker, William Conrad Wertz, Sherri Lynn Randall
Life of this patent
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Abstract
Detergent compositions and fabric conditioning compositions which include from about 0.01% to about 5.0%, by weight, of polyelectolyte complexes having a compatible charge-balancing polymeric anion with at least 3 anionic groups and a total net charge of at least 4 negative charges.
Claims24
A detergent composition comprising:
- (A) a detersive surfactant system;
- (B) a polyelectrolyte complex of cationic and anionic polymers comprising:
- (a) cationic condensates of (i) at least one amine selected from the group consisting of linear alkylamines, branched alkylamines, cycloalkylamines, alkoxyamines, amino alcohols, cyclic amines containing at least one nitrogen atom in a ring structure, alkylenediamines, polyetherdiamines, polyalkylenepolyamines, mixtures of one of the said amines with at least one amino acid or a salt thereof, reaction products of the said amines with at least one anionic group containing alkylating agent wherein per mole of NH group of the amines of from 0.04 to 0.6 moles of the anionic group containing alkylating agent is reacted, and mixtures thereof, and (ii) a crosslinking agent selected from the group consisting of epihalo-hydrins, bishalohydrins of diols, bishalohydrins of polyalkylene glycols, bishalohydrins of polytetrahydrofurans, alkylene dihalides, alkylene trihalides, bisepoxides, trisepoxides, tetraepoxides, mixtures thereof, and quaternized cationic condensates of (i) and (ii) and;
- (b) a polymeric anion source with at least 3 anionic groups and a total net charge of at least 4 negative charges;
- wherein the charge ratio between anionic and cationic polymers is from 0.01 to 20;
- and
- (C) the balance detergent adjunct ingredients.
A detergent composition comprising:
- from about 1% to about 80% by weight of surfactants selected from the group consisting of nonionic, anionic, cationic, amphoteric zwitterionic surfactants and mixtures thereof;
- and a polyelectrolyte complex of cationic and anionic polymers which consists of
- (a) cationic condensates of (i) at least one amine selected from the group consisting of linear alkylamines, branched alkylamines, cycloalkylamines, alkoxyamines, amino alcohols, cyclic amines containing at least one nitrogen atom in a ring structure, alkylenediamines, polyetherdiamines, polyalkylenepolyamines, mixtures of one of the said amines with at least one amino acid or a salt thereof, reaction products of the said amines with at least one anionic group containing alkylating agent wherein per mole of NH group of the amines of from 0.04 to 0.6 moles of the anionic group containing alkylating agent is reacted, and mixtures thereof, and (ii) a crosslinking agent from the group consisting of epihalohydrins, bishalohydrins of diols, bishalohydrins of polyalkylene glycols, bishalohydrins of polytetrahydrofurans, alkylene dihalides, alkylene trihalides, bisepoxides, trisepoxides, tetraepoxides, mixtures thereof, and quaternized cationic condensates of (i) and (ii) and;
- (b) a polymeric anion source with at least 3 anionic groups and a total net charge of at least 4 negative charges;
- wherein the charge ratio between anionic and cationic polymers is from 0.01 to 20.
A laundry additive composition comprising:
- a) from about 1% to about 80% by weight of water;
- and
- b) a polyelectrolyte complex of cationic and anionic polymers comprising:
- (i) cationic condensates of (ii) at least one amine and (iii) a crosslinking agent from the group consisting of epihalohydrins, bishalohydrins of diols, bishalohydrins of polyalkylene glycols, bishalohydrins of polytetrahydrofurans, alkylene dihalides, alkylene trihalides, bisepoxides, trisepoxides, tetraepoxides, mixtures thereof, and quaternized cationic condensates of (ii) and (iii) and;
- c) a polymeric anion source with at least 3 anionic groups and a total net charge of at least 4 negative charges;
- wherein the charge ratio between anionic and cationic polymers is from 0.01 to 20.
A process for producing a detergent composition having a fabric appearance component comprising a polyelectrolyte complex of cationic and anionic polymers comprising the steps of:
- a) providing an anionic polymer with at least 3 anionic groups and a total net charge of at least 4 negative charges;
- b) providing a cyclic amine cationic polymer;
- c) combining said anionic polymer with said cationic polymer to form a mixture;
- d) stirring said mixture until completely homogeneous to produce a polymeric ion pair;
- and
- e) adding said polymeric ion pair to a detergent composition to form a detergent composition having a fabric appearance component.
Dependencies are inferred from the claim text.