Patent ID: 8273336

Claim:
A hair treatment composition comprising: (A) a tertiary amine represented by the following formula (I): (wherein R 1 may be the same or different and each represents a C 1-3 alkyl group or benzyl group which may optionally be substituted by a hydroxyl group; and R 2 represents a C 8-36 straight chain or branched chain alkyl group which may optionally be substituted by a hydroxyl group or a R 3 -(Y)—(Z)-group, in which R 3 is a C 8-36 straight chain or branched chain alkyl group which may optionally be substituted by a hydroxyl group; Y is a linking group selected from an amide linkage (—CONH—), an ether linkage (—O—), and an ester linkage (—COO—); and Z is a linking group selected from —CH 2 CH 2 CH 2 — and —CH 2 CH(OH)CH 2 —); (B) a quaternary ammonium salt represented by the following formula (II): (wherein R 4 , R 5 , R 6 , and R 7 may be the same or different with at least one of R 4 , R 5 , R 6 , and R 7 representing a C 3-36 straight chain or branched chain alkyl group or alkenyl group while each of the rest representing a C 1-3 alkyl group or benzyl group which may optionally be substituted by a hydroxyl group; and X − represents an anion); and (C) a higher alcohol, characterized in that a ratio ((C)/[(A)+(B)]) of an amount of (C) higher alcohol to a total amount ([(A)+(B)]) of (A) tertiary amine and the (B) quaternary ammonium salt is within a range of 0.1 to 1.0 ; and that the composition as a whole has a pH of 7.0 or more.