Patent ID: 6025318
Filing Date: 2000-02-15
Classification: C11D

Abstract:
A microemulsion cleaning composition comprising:(a) 0.1 wt. % to 8 wt. % of an anionic selected from the group consisting of sulfonated surfactants and sulfated surfactants;(b) 0.5 to 8% of a mixture of: ##STR9## wherein w equals one, and B is selected from the group consisting of hydrogen and a group represented by: ##STR10## wherein R is selected from the group consisting of alkyl group having 6 to 22 carbon atoms, and alkenyl groups having 6 to 22 carbon atoms, wherein at least one of the B groups is represented by said ##STR11## R' is selected from the group consisting of hydrogen and methyl groups; x, y and z have a value between 0 and 60, provided that (x+y+z) equals 2 to 100, wherein in Formula (I) the weight ratio of monoester/diester/triester is 40 to 90/5 to 35/1 to 20, wherein the weight ratio of Formula (I) and Formula (II) is a value between 3 and 0.02;(c) 0.5% to 8% of a short chain amphiphiles formed from the condensation product of an alkanol, ethylene oxide and propylene oxide wherein said short chain amphiphile has the formula: ##STR12## wherein R.sub.1 or R.sub.2 are a straight or branched chain alkyl group having 2 to 9 carbon atoms and x or w is a number from 2 to 8 and y or z is a number from 1 to 4;(d) 0.25% to 6% of magnesium sulfate;(e) 0.1 to 5 wt. % of a water insoluble hydrocarbon, essential oil or a perfume; and(f) the balance being water, wherein the composition does not contain a water-soluble polyethylene glycols having a molecular weight of 150 to 1000, polypropylene glycol of the formula HO(CH.sub.3 CHCH.sub.2 O).sub.n H wherein n is a number from 2 to 18, mixtures of polyethylene glycol and polypropylene glycol and mono and di C.sub.1 -C.sub.6 alkyl ethers and esters of ethylene glycol and propylene glycol having the structural formulas R(X).sub.n OH, R.sub.1 (X).sub.n OH, R(X).sub.n OR and R.sub.1 (X).sub.n OR.sub.1 wherein R is C.sub.1 -C.sub.6 alkyl group, R.sub.1 is C.sub.2 -C.sub.4 acyl group, X is (OCH.sub.2 CH.sub.2) or (OCH.sub.2 (CH.sub.3)CH) and n is a number from 1 to 4, diethylene glycol, triethylene glycol, an alkyl lactate, wherein the alkyl group has 1 to 6 carbon atoms, 1methoxy-2-propanol, 1methoxy-3-propanol, and 1methoxy 2-, 3- or 4-butanol.