Patent ID: 6191094
Filing Date: 2001-02-20
Classification: C11D,C23G

Abstract:
An aqueous cleaning composition for cleaning a substrate contaminated with industrial-type soil contaminants, comprising:(i) an aqueous portion and(ii) an active-ingredient portion comprising:(A) an alkalinity-providing agent selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates, and mixtures thereof in an amount sufficient to provide said aqueous cleaning composition with an alkaline pH;(B) a surfactant mixture comprising:(a) an active concentration of an ethoxylated C.sub.12-14 alkanol surfactant having an HLB value at 25.degree. C. of from 8 to 12, and(b) an active concentration of at least one aminocarboxylic acid surfactant of the general formula:R--N(H)--R' (I)wherein R is a straight or branched chain aliphatic organic group having from 10 to 20 carbon atoms, and R' is a straight or branched chain carboxylic acid having from 1 to 7 carbon atoms;wherein said active concentration of said surfactant (a) and said active concentration of said surfactant (b) are such as to render said aqueous cleaning composition capable of removing at least a substantial portion of said contaminants from said substrate wherein said active concentration of said surfactant (a) and said active concentration of said surfactant (b) are such as to provide an active-concentration ratio of said surfactant (a) to said surfactant (b) of from about 2.5:1 to about 1:1; wherein said composition provides improved grease and mixed lube removal properties.