Cosmetics having improved affinity

Abstract

Abstract NEW MATERIAL:A cationized hydroxyalkylstarch wherein a part of the hydroxyl group is replaced by groups I (R1-R3 are 1-3C alkyl; X is monovalent anion), having a nitrogen content of 0.5-5wt%, and prepared by the addition-reaction of a starch with 0.1-2 moles of an alkylene oxide on the basis of the anhydrous glucose unit. USE:An additive for cosmetics It has excellent affinity for hair or skin, gives the film having improved flexibility, moisture retention, etc., and has high safety. 0.1- 5wt% of the starch is added to a cleansing cream, a shampoo, a rinse, etc. PROCESS:A cationized hydroxyalkylstarch is prepared by the addition-reaction of a starch with an alkylene oxide (0.1-2 moles on the basis of the anhydrous glucose unit) followed by the reaction of the product with a compound II or III (Hal is halogen).

Inventors

• 👤 Takuma Yanagawa
• 👤 Kiyoshi Nakayama
• 👤 Daiji Saiga

Bibliographic Details