Patent ID: 6274540
Filing Date: 2001-08-14
Classification: C11D

Abstract:
A cleaning composition comprising:a) 0.1% to 99.9% by weight of said composition of an alkylarylsulfonate surfactant system comprising from 10% to 100% by weight of said surfactant system of two or more crystallinity-disrupted alkylarylsulfonate surfactants of formula:(B-Ar-D).sub.a (M.sup.q+).sub.bwherein D is SO.sub.3.sup.--, M is a cation or cation mixture, q is the valence of said cation, a and b are numbers selected such that said composition is electroneutral; Ar is selected from benzene, toluene, and combinations thereof; and B comprises the sum of at least one primary hydrocarbyl moiety containing from 5 to 20 carbon atoms and one or more crystallinity-disrupting moieties wherein said crystallinity-disrupting moieties interrupt or branch from said hydrocarbyl moiety; and whereinsaid alkylarylsulfonate surfactant system has crystallinity disruption to the extent that its Sodium Critical Solubility Temperature, as measured by the CST Test, is no more than 40.degree. C.; andwherein further said alkylarylsulfonate surfactant system has at least one of the following properties:percentage biodegradation, as measured by the modified SCAS test, that exceeds tetrapropylene benzene sulfonate; andweight ratio of nonquaternary to quaternary carbon atoms in B of at least 5:1; andb) from 0.00001% to 99.9% by weight of said composition of cleaning composition adjunct ingredients, at least one of which is selected from the group consisting of: i) detersive enzymes; ii) organic detergent builders; iii) oxygen bleaching agent; iv) bleach activators; v) transition metal bleach catalysts; vi) oxygen transfer agents and precursors; vii) polymeric soil release agents; viii) water-soluble ethoxylated amines having clay soil removal and antiredeposition properties; ix) polymeric dispersing agents; x) polymeric dye transfer inhibiting agents; xi) alkoxylated polycarboxylates; and xii) mixtures thereof.