Patent ID: 7147843

Claim:
A hair treatment composition comprising the following ingredients A, B, C and D: (A) a hydrophobically modified polyether urethane represented by the following general formula (1): R 1 —{(O—R 2 ) k —OCONH—R 3 [—NHCOO—)R 4 —O)n-R 5 ] h } m (1), wherein R 1 , R 2 , and R 4 denote hydrocarbon groups which can be identical or different from each other, R 1 is a residue of a polyol represented by R 1 —(OH) m , R 2 and/or R 4 are alkylene groups having 2–4 carbon atoms or phenylethylene groups that can be identical or different from each other, R 3 denotes a hydrocarbon group that can have a urethane bond, or a residue of a polyisocyanate represented by R 3 —(NCO) h+1 , which is obtained by a reaction between di- to octa-hydric polyol and di- to tetra-hydric polyisocyanate, R 5 is a hydrocarbon group having 24 carbon atoms derived from decyltetradecyl alcohol; m is 2 or greater; h is 1 or greater; and k and n are independent numbers in the range of 0–1,000, or the polyether urethane of formula 1 is a product of a reaction between one, two or more polyether polyols represented by R 1 —(NCO) h+1 , and one, two or more polyether monoalcohols represented by HO—(R 4 —O) n —R 5 ; (B) a cationic surfactant, which is a quaternary ammonium salt represented by the following general formula (2) or an amidoamine type compound represented by the following general formula 3: wherein, in general formula 2, R3 denotes an alkyl group or hydroxyalkyl group having 14–22 carbon atoms, R4 denotes a benzyl group, hydroxyalkyl group, or alkyl group having 1–3 carbon atoms, R5 and R6 denote alkyl groups or hydroxyalkyl groups independently represented by either R3 or R4, and X denotes a halogen atom or an alkylsulfuric group having 1–2 carbon atoms and, R7CONH—(CH 2 ) x N(R8) 2 3 wherein R7CO— denotes a higher fatty acid residue having 12–24 carbon atoms, R8 denotes an alkyl group having 1–4 carbon atoms, and x is an integer 2–4, or the amidoamine-type compound is one, two or more selected from a group consisting of stearamidoethyl diethylamine, stearamidopropyl dimethylamine, and behenamidopropyl dimethylamine, or one, two or more quaternary ammonium salts selected from the group consisting of stearylmethyl ammonium chloride, cetylmethyl ammonium chloride, and behenyltrimethyl ammonium chloride; (C) a higher alcohol and/or higher fatty acid, wherein the molar ratio of the surfactant and the higher alcohol and/or higher fatty acid is 1:2–1:10, the higher alcohol is one, two or more selected from the group consisting of cetyl alcohol, stearyl alcohol, and behenyl alcohol, said higher fatty acid is one, two or more selected from the group consisting of stearic acid, palmitic acid, myristic acid, oleic acid, isostearic acid, 12-hydroxystearic acid, and behenic acid, and the blend ratio of the hydrophobically modified polyether urethane of general formula (1) is 0.1–10 wt % of the total amount of the hair treatment composition; and (D) an organic acid selected from the group consisting of citric acid, tartaric acid and glutamic acid.