Agent for permanent hair waving containing heterocyclic...

Details Agent for permanent hair waving containing heterocyclic... Agent for permanent hair waving containing heterocyclic...

2006-05-25

2011-11-29

Venkat, Jyothsna (Department: 1619)

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Permanent waving or straightening

Reexamination Certificate

active

08066977

ABSTRACT:
Disclosed is an agent for permanent hair waving that can realize permanent hair waving even in the neutral to weakly acidic pH range in which irritation particularly to the skin is not significant. The agent for permanent hair waving includes at least one heterocyclic mercapto compound represented by formula (1):wherein R1and R2each independently represent a hydrogen atom or an optionally substituted alkyl group having 1 to 5 carbon atoms; X represents —O—, —S—, —NH—, or —NR3—; R3represents an alkyl group having 1 to 5 carbon atoms; n is an integer of 0 to 2; and, when n is 2, group SH may be attached to any carbon atom of an alkylene group having 2 carbon atoms.

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Patent Abstracts of Japan, vol. 017, No. 442 (C-1097), Aug. 16, 1993 for JP-A-5-97800 (Kao Corp.), Apr. 20, 1993.

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