Patent ID: 6306805
Filing Date: 2001-10-23
Classification: A61K,A61Q,C11D

Abstract:
A surfactant composition comprising:(a) from about 0.05% to about 5% by weight based on the total weight of the composition of a cationic surfactant which is a quaternary ammonium compound of the formula: ##STR53##whereR.sub.1, R.sub.2, and R.sub.3 are independently ethyl, methyl or benzyl;R.sub.4 is an alkyl group having an average of from about 8 to about 18 carbon atoms; andX is halogen, sulfate, methosulfate, ethosulfate, tosylate, acetate, phosphate, nitrate, sulfonate, or carboxylate; and(b) an anionic surfactant comprisingi) from about 3% to about 22% by weight based on the total weight of the composition of an alpha sulfonated alkyl ester of the formula ##STR54##wherein R.sub.3 is a C.sub.6 -C.sub.22 hydrocarbyl group, an alkyl group, or combination thereof, R.sub.4 is a straight or branched chain C.sub.1 -C.sub.6 hydrocarbyl group, an alkyl group, or combination thereof, n is 1 or 2 and M is hydrogen, sodium, potassium, calcium, magnesium, ammonium, monoethanolammonium, diethanolammonium, triethanolammonium, or a mixture thereof; andii) from about 0.01% to about 11% by weight based on the total weight of the composition of a sulfonated fatty acid of the formula ##STR55##wherein R.sub.5 is a C.sub.6 -C.sub.22 hydrocarbyl group, an alkyl group, or combination thereof, n is 1 or 2 and wherein N is hydrogen, sodium, potassium, calcium, magnesium, ammonium, monoethanolammonium, diethanolammonium, triethanolammonium, or a mixture thereof; andwherein the weight ratio of i) to ii) is from about 10:1 to about 0.5:1; and(c) from about 0.01% to about 15% by weight based on the total weight of the composition a bridging surfactant selected from the group consisting of amine oxides, ethoxamides, and betaines or a mixture thereof; and(d) water;wherein the total concentration of combined cationic, anionic, and bridging surfactants is from about 3% to about 40% by weight based on the total weight of the composition.