Organopolysiloxane hair treatment agent and hair cosmetic containing the treatment agent

摘要

An organopolysiloxane hair treatment agent (A) represented by the following formula (1),
R1aR2bR3cSiO(4-a-b-c)/2  (1).
The hair treatment agent and cosmetic maintain good conditioning effect for a prolonged period of time.

主权项

1. A method of conditioning hair, said method comprising a step of applying an organopolysiloxane hair treatment composition to said hair;
wherein said organopolysiloxane hair treatment composition comprises: an organopolysiloxane represented by the following formula (1), dispersed or dissolved in an organic solvent,
R1aR2bR3cSiO(4-a-b-c)/2  (1)wherein
R1 is an organic group selected from the group consisting of alkyl groups having 1 to 30 carbon atoms, alicyclic groups, aryl groups, aralkyl groups, fluorinated alkyl groups and an organic group represented by following formula (2),
—CdH2d—O—(C2H4O)e(C3H6O)fR4  (2)wherein R4 is an alkyl group having 1 to 30 carbon atoms, provided that, when d=e=f=0, said alkyl group has 7 to 30 carbon atoms, or an organic group represented by the formula, R5—(CO)—, wherein R5 is an alkyl group having 1 to 30 carbon atoms,
R2 is a group having at least one hydroxyl group or alkoxy group having 1 to 6 carbon atoms, wherein said hydroxyl group or alkoxy group is bonded to a silicon atom in the formula (1) directly or via an alkylenesilyl group, R3 is a silicone compound residue represented by the following formula (3),wherein R6 is a group selected from the group consisting of alkyl groups having 1 to 30 carbon atoms, alicyclic groups, aryl groups, aralkyl groups, and fluorinated alkyl groups, wherein when two or more of the groups R1, R2, R3, R4, R5 or R6, respectively, are present in a molecule, such are the same with or different from each other,
a, b and c each is a number with 1.0≦a≦2.5, 0.001≦b≦1.5, and 0.001≦c≦1.5, d, e and f each is an integer with 0≦d≦15, 0≦e≦50, and 0≦f≦50, x is an integer with 1≦x≦5, and y is an integer with 0≦y≦500.