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US 10,590,366 B2Granted
Opacifiers for detergent compositions
AssigneesDow Global Technologies LLC, Rohm and Haas Company
InventorsAsghar A. Peera, Anne Oberlin, Afua Sarpong Karikari
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Abstract
Provided is a detergent composition that contains an opacifier with improved opacifying characteristics. The composition comprises an opacifier, a surfactant, a solvent, and optionally a builder, wherein the opacifier is an aqueous dispersion of voided latex particles have a composition as described herein.
Claims9
A detergent composition comprising:
- an opacifier, a surfactant, a solvent, and optionally a builder, wherein the opacifier is an aqueous dispersion of voided latex particles comprising:
- (i) at least one core polymer comprising polymerized units derived from
- (a) 5 to 100 percent by weight, based on the weight of the core polymer, of at least one hydrophilic monoethylenically unsaturated monomer selected from the group consisting of acrylic acid, methacrylic acid, acryloxypropionic acid, (meth)acryloxypropionic acid, itaconic acid, aconitic acid, maleic acid or anhydride, fumaric acid, crotonic acid, monomethyl maleate, monomethyl fumarate, monomethyl itaconate and mixtures thereof, and
- (b) from 0 to 95 percent by weight, based on the weight of the core polymer, of at least one nonionic monoethylenically unsaturated monomer selected from the group consisting of vinyl toluene, ethylene, vinyl acetate, vinyl chloride, vinylidene chloride, (meth)acrylonitrile, (meth)acrylamide, C1-20 alkyl or C3-20 alkenyl esters of (meth)acrylic acid and mixtures thereof;
- and
- (ii) at least one shell polymer comprising polymerized units derived from at least 50 percent by weight, based on the total weight of the shell polymer, of at least one nonionic monoethylenically unsaturated monomer selected from the group consisting of styrene, α-methyl styrene, p-methyl styrene, t-butyl styrene, vinyl toluene, ethylene, vinyl acetate, vinyl chloride, vinylidene chloride, (meth)acrylonitrile, (meth)acrylamide and C1-20 alkyl or C3-20 alkenyl esters of (meth)acrylic acid,
- wherein the voided latex particles contain a void with a void fraction of 25 to 50%;
- and wherein the voided latex particles have a particle size of from 50 nm to 1000 nm.
5 more elements
A method for providing opacity to a detergent composition containing a surfactant, a solvent, and optionally a builder, the method comprising including in the detergent composition an opacifier, wherein the opacifier is an aqueous dispersion of voided latex particles comprising:
- (i) at least one core polymer comprising polymerized units derived from
- (a) 5 to 100 percent by weight, based on the weight of the core polymer, of at least one hydrophilic monoethylenically unsaturated monomer selected from the group consisting of acrylic acid, methacrylic acid, acryloxypropionic acid, (meth)acryloxypropionic acid, itaconic acid, aconitic acid, maleic acid or anhydride, fumaric acid, crotonic acid, monomethyl maleate, monomethyl fumarate, monomethyl itaconate and mixtures thereof, and
- (b) from 0 to 95 percent by weight, based on the weight of the core polymer, of at least one nonionic monoethylenically unsaturated monomer selected from the group consisting of vinyl toluene, ethylene, vinyl acetate, vinyl chloride, vinylidene chloride, (meth)acrylonitrile, (meth)acrylamide, C1-20 alkyl or C3-20 alkenyl esters of (meth)acrylic acid and mixtures thereof;
- and
- (ii) at least one shell polymer comprising polymerized units derived from at least 50 percent by weight, based on the total weight of the shell polymer, of at least one nonionic monoethylenically unsaturated monomer selected from the group consisting of styrene, α-methyl styrene, p-methyl styrene, t-butyl styrene, vinyl toluene, ethylene, vinyl acetate, vinyl chloride, vinylidene chloride, (meth)acrylonitrile, (meth)acrylamide and C1-20 alkyl or C3-20 alkenyl esters of (meth)acrylic acid,
- wherein the voided latex particles contain a void with a void fraction of 25 to 50%;
- and wherein the voided latex particles have a particle size of from 50 nm to 1000 nm.
4 more elements
Dependencies are inferred from the claim text.