Patent ID: 6774099
Filing Date: 2004-08-10
Classification: C11D

Abstract:
A hand dishwashing composition comprising:A) from 0.1% to 99.9% by weight, of a surfactant system comprising: i) from 10% to 80% by weight of said surfactant system, of of two or more alkylarysulfonate surfactants of formula: (Bâ€”Arâ€”D)a(Mq+)b â€ƒwherein D is â€”SO3âˆ’, M is a cation, q is the cation valence, a and b are numbers having values which provide said surfactant with charge neutrality; Ar is selected from benzene, toluene, and mixtures thereof; B comprises a C2-C20 hydrocarbyl moiety and a crystallinity-disrupted moiety; said crystallinity-disrupted moiety interrupts or branches from said hydrocarbyl moiety and is selected from the group consisting of: I) one or more branches selected from C1-C3 alkyl, C1-C3 alkoxy, hydroxy, and mixtures thereof; II) one or more interrupts selected from the group consisting of â€”Oâ€”, â€”OSi(CH3)2Oâ€”, â€”SO3â€”, and mixtures thereof; â€ƒwherein said surfactant system has a Sodium Critical Solubility Temperature of 40Â° C. or less; and at least one of the following: a) modified SCAS test biodegradation which exceeds the value obtained for tetrapropylene benzene sulfonate; or b) a ratio of at least 5:1 by weight, of non-quaternary carbon atoms to quaternary carbon atoms which comprise B: ii) from 0.1% to 20% by weight, of an amine oxide selected from the formula â€ƒwherein R3 is an alkyl, hydroxyalkyl, or alkyl phenyl group or mixtures thereof containing from about 8 to about 22 carbon atoms; R4 is an alkylene or hydroxyalkylene group containing from about 2 to about 3 carbon atoms or mixtures thereof; x is from 0 to about 3; and each R3 is an alkyl or hydroxyalkyl group containing from about 1 to about 3 carbon atoms or a polyethylene oxide group containing from about 1 to about 3 ethylene oxide groups wherein the amino oxide comprises from 0 to 40 ppm hydrogen peroxide and from 0 to 40 ppm amine impurities; iii) optionally one or more detersive surfactants other than (i) and (ii) wherein the one or more detersive surfactants comprises 0 to 40 ppm hydrogen peroxide; B) a diamine substantially free of impurities having a pK, of at least 8, said diamine having the formula: â€ƒwherein each R6 is independently selected from the group consisting of hydrogen, C1-C4 alkyl, alkyleneoxy having the formula: â€”(R7O)mR8 wherein R9 is C2-C4 linear or branched alkylene, and mixtures thereof; R7 is hydrogen C1-C4 alkyl and mixtures thereof; m is from 1 to 10; X is a unit selected from:i) C3-C10 linear, cyclic, or branched alkylene alkyleneoxyalkylene having the formula: â€”(R7O)mR7â€”â€ƒwherein R7 and m are the same as defined herein; ii) a C3-C14 linear, cyclic, or branched alkylene, C4-C10 arylene; wherein said unit comprises one or more electron donating or electron withdrawing moieties which provide said diamine with a pK, greater than 8; iii) and mixtures thereof: C) From 0.0001% to 2% by weight, of an enzyme selected from proteases, amylases, lipases, and mixtures thereof; D) 0.001% to about 5% by weight, of a non-diamine stabilizers selected from antioxidants, chelants, and mixtures thereof; E) from 0.00001% to 99.5% by weight of a conventional band dishwashing adjunct; and F) from 0.01% to 7% by weight of a divalent ion selected from the group consisting of magnesium, calcium and mixtures thereof.