Patent ID: 6342473
Filing Date: 2002-01-29
Classification: C11D

Abstract:
A hard surface cleaning composition comprising:(i) from about 0.01% to about 95% by weight of composition of a modified alkylbenzene sulfonate surfactant mixture comprising: (a) from about 15% to about 99% by weight of surfactant mixture, a mixture of branched alkylbenzene sulfonates having formula (I): â€ƒwherein L is an acyclic aliphatic moiety consisting of carbon and hydrogen, said L having two methyl termini and said L having no substituents other than A, R1 and R2; and wherein said mixture of branched alkylbenzene sulfonates contains two or more of said branched alkylbenzene sulfonates differing in molecular weight of the anion of said formula (I) and wherein said mixture of branched alkylbenzene sulfonates has a sum of carbon atoms in R1, L and R2 of from 9 to 15; an average aliphatic carbon content of from about 10.0 to about 14.0 carbon atoms; M is a cation or cation mixture having a valence q; a and b are integers selected such that said branched alkylbenzene sulfonates are electroneutral; R1 is C1-C3 alkyl; R2 is selected from H and C1-C3 alkyl; A is a benzene moiety; and (b) from about 1% to about 85% by weight of surfactant mixture, of a mixture of nonbranched alkylbenzene sulfonates having formula (II): â€ƒwherein a, b, M, A and q are as defined hereinbefore and Y is an unsubstituted linear aliphatic moiety consisting of carbon and hydrogen having two methyl termini, and wherein said Y has a sum of carbon atoms of from 9 to 15, preferably from 10 to 14, and said Y has an average aliphatic carbon content of from about 10.0 to about 14.0; and â€ƒwherein said modified alkylbenzene sulfonate surfactant mixture is further characterized by a 2/3-phenyl index of from about 160 to about 275; (ii) from about 0.001% to 99.9% by weight of a conventional surface cleansing additive; wherein said composition is further characterized by a 2/3-phenyl index of from about 160 to about 275.