ALKYLENE CARBONATE DILUENT, ALKYLENE CARBONATE FOR PREPARING THE SAME, AND AQUEOUS REDUCING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a one pack type aqueous solution of a permanent waving first agent using a cyclic mercapto compound as a reducing substance and excellent in waving efficiency and waving feeling, etc., and readily prepared when used. SOLUTION: The present invention provides: an alkylene carbonate diluent containing a cyclic mercapto compound in an amount of 7 to 80 wt.%; an alkylene carbonate used for preparation of the alkylene carbonate diluent; and an aqueous reducing agent which is prepared from the alkylene carbonate diluent and an aqueous base material. COPYRIGHT: (C)2008,JPO&INPIT