| 摘要 |
NEW MATERIAL:An intramolecular oligoesterified product of 12-hydroxystearic acid and/or ricinoleic acid expressed by formulaI(X is H; group expressed by formula II is alkyl residue of 12-hydroxystearic acid or ricinoleic acid; n is an interger >=0) and an ester thereof with a monohydric alcohol. USE:An oily base for a cosmetic. The compound expressed by formulaIchanges from the liquid state into a paste and further wax, assumes various forms and has improved compatibility with another oil, good touch, water holding property without irritant action on the skin and deterioration in quality with time. PROCESS:The hydroxyl group and carboxyl group present in 12-hydroxystearic acid and ricinoleic acid are subjected to the intramolecular esterifying reaction to give the compound expressed by formulaI. The carboxyl groups in the reaction product are partially or wholly esterified with an aliphatic monohydric alcohol to adjust the viscosity, lubricity, gloss, melting point, and water holding property, etc. of the aimed compound. |
