Shampoo composition containing phosphoric acid ester and organic silicon derivative

Claim 1

A hair shampoo composition consisting essentially of an aqueous shampoo base consisting essentially of 10 to 25 wt.% of one or a mixture of two or more surface active agents selected from the group consisting of straight-chain or branched-chain alkylsulfuric acid ester salts of 10 to 16 carbon atoms, polyoxyethylene alkylsulfuric acid ester salts having an average ethylene oxide addition mol number in the range of 0.5-8 in which the alkyl group has 8 to 20 carbon atoms on the average, olefinsulfonic acid salts of 10 to 16 carbon atoms on the average, higher fatty acid mono- and di-alkanolamides having an alkyl group of 10 to 14 carbon atoms on the average, alkyl amine oxides, alkyl betaines and imidazolines having 10 to 14 carbon atoms on the average, said agents being effective for washing hair, and the balance is essentially water, said shampoo base having incorporated therein (A) 0.1 to 5.0 wt.%, based on the total weight of the shampoo composition, of at least one anionic phosphoric acid ester having the formula ##STR23## in which R is linear or branched alkyl group having 8 to 22 carbon atoms; R 1 is hydrogen or methyl; m is an integer of 0 to 6; B is --OX 2 or ##STR24## and X 1 and X 2 , which can be the same or different, are hydrogen, alkali metal, alkyl(C 1 -C 3 )-substituted ammonium, hydroxyalkyl(C 1 -C 3 )-containing alkanolamine or a basic amino acid, said phosphoric acid ester consisting essentially of a mixture of monoester wherein B is --OX 2 and diester wherein B is ##STR25## such that the weight ratio of said monoester to said diester is in the range of 100/0 to 50/50; and (B) 0.01 to 5 wt.%, based on the total weight of the shampoo composition, of a polyether-modified silicone having the formula: ##STR26## wherein A' is alkyl of 1 to 12 carbon atoms or hydrogen, x 1 is an integer of from 1 to 100, y 1 is an integer of from 1 to 50, m 2 is an integer of 1 to 50 and n 2 is an integer of 0 to 50, with the proviso that the sum of x 1 and y 1 is at least 15 and the sum of m 2 and n 2 is at least 5.