Patent ID: 6017874
Filing Date: 2000-01-25
Classification: C11D

Abstract:
A liquid laundry detergent composition comprising a Nil-LAS surfactant system, said surfactant system comprising:(i) an anionic surfactant selected from the group consisting of an alkyl alkoxy sulfate, an alkyl sulfate and mixtures thereof; and(ii) a quaternary ammonium surfactant having the structure; ##STR7## wherein, R.sub.1 is selected from the group consisting of C.sub.8 alkyl, C.sub.10 alkyl and an alkylamidoalkyl having the structure; ##STR8## wherein y is selected from the group consisting of 2, 3 and 4; R.sub.2 is selected from the group consisting of H and C.sub.1 -C.sub.3 alkyl; x is selected from the group consisting of 0, 1, 2, 3, and 4; R.sub.3 and R.sub.4 are each, independently, C.sub.1 -C.sub.3 alkyl; and X.sup.- is selected from the group consisting of halide and methylsulfate; and(iii) a nonionic amine surfactant; andwherein the weight ratio of said quaternary ammonium surfactant to said anionic surfactant is from about 1:3 to about 1:30, and the weight ratio of said anionic surfactant to said nonionic amine surfactant is from about 1:6 to about 1:3.