Aqueous lamellar detergent compositions with hydrophobically terminated hydrophilic polymer
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorPeter Bainbridge
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Abstract
Liquid detergent compositions comprise hydrophobically-terminated, hydrophilic polymers as deflocculating agents, phase stabilizers, builders or co-builders and viscosity modifiers, in addition to detergent active material and electrolytes contained in an aqueous continuous phase.
Claims18
A liquid detergent composition consisting essentially of a lamellar dispersion of at least 25%, by weight, detergent active material(s) in an aqueous continuous phase at least 1%, by weight, electrolyte(s) contained in the aqueous continuous phase, about 0.01 to 5%, by weight, deflocculating polymer, water;
- and optionally one or more additional detergent component(s), all percents based on the total weight of the detergent composition, the deflocculating polymer comprising a hydrophobically-terminated, hydrophilic polymer having efficacy as a stabilizer wherein the deflocculating polymer comprises a repeating unit of the structure:
- [A--B].sub.n --C,
- wherein A and B are a polymerized residue of ethylenically unsaturated carboxylic acid monomer(s) selected from the group consisting of monocarboxylic acid(s), dicarboxylic acid(s) and their salts, anhydrides and esters, C is a terminal hydrophobic moiety derived from reagents which function as chain terminating agents during polymerization to form a hydrophobically-capped polymer chain, and wherein n is an integer from about 10 to 100, and wherein the liquid detergent composition yields no more than 2%, by volume, visual phase separation following storage at 25.degree. C. for one month.
A liquid detergent composition consisting essentially of a lamellar dispersion of at least 5%, by weight, detergent active material(s) in an aqueous continuous phase, at least 1%, by weight, electrolyte(s) contained in the aqueous continuous phase, about 2 to 10%, by weight, detergent builder, water;
- and optionally, one or more additional detergent component(s), all percents based on the total weight of the detergent composition, the detergent builder comprising a hydrophobically-terminated, hydrophilic polymer comprising at least one monocarboxylic acid monomer and at least one dicarboxylic acid monomer, wherein the detergent builder comprises a repeating unit of the structure:
- [A--B].sub.n --C,
- wherein A and B each are a polymerized residue of ethylenically unsaturated carboxylic acid monomer(s) selected from the group consisting of monocarboxylic acid(s), dicarboxylic acid(s) and their salts, anhydrides and esters, A and B are different, C is a terminal hydrophobic moiety derived from reagents which function as chain terminating agents during polymerization to form a hydrophobically-capped polymer chain, and n is an integer from about 10 to 100, and wherein the liquid detergent composition yields no more than 2%, by volume, visual phase separation following storage at 25.degree. C. for one month.
Dependencies are inferred from the claim text.