Patent ID: 6274539
Filing Date: 2001-08-14
Classification: C11D

Abstract:
An aqueous, controlled-pH, thickened light duty liquid or gel detergent composition having especially desirable soil removal and sudsing performance when used to clean heavily soiled dishware, said composition comprisingA) from about 20% to 40% by weight of an anionic surfactant component which comprises alkyl ether sulfates containing from about 8 to 18 carbon atoms in the alkyl group and from about 1 to 6 moles of ethylene oxide;B) from about 3% to 10% by weight of a nonionic surfactant component which comprises surfactants selected from the group consisting of C.sub.8-18 polyhydroxy fatty acid amides and combinations of said polyhydroxy fatty acid amides with from about 0.2% to 2.0% by weight of the composition of a nonionic co-surfactant selected from the group consisting of C.sub.8-18 alcohol ethoxylate having from about 1 to 15 moles of ethylene oxide, ethylene oxide-propylene oxide block copolymer surfactants and combinations of said nonionic co-surfactants;C) from about 2% to 6% by weight of a suds booster/stabilizer selected from the group consisting of betaine surfactants, hydroxy-free fatty acid amides, amine oxide semipolar nonionic surfactants, C.sub.8-22 alkylpolyglycosides and combinations of said suds boosters/stabilizers;D) from about 45% to 75% by weight of an aqueous liquid carrier;E) from about 0.2% to 6% by weight of a pH control agent which is effective for maintaining the pH of a 10% aqueous solution of the composition within the range of from about 9 to 11; andF) from about 0.2% to 2% of a thickener which is an associative copolymer of ethyl acrylate, steareth-20 and acrylic or methacrylic acid;said composition being free of any source of calcium or magnesium ions.