| abstract |
【Task】 There is an invention that uses an oligoester of hardened castor oil and saturated dibasic acid as an oily base of cosmetics or quasi-drugs, but the compatibility with other oils is too good, so the effect as a cosmetic is sustained There is a problem that the nature is short. [Solution] By controlling the degree of polymerization to an appropriate range with an oligoester of hydrogenated castor oil and saturated dibasic acid, the compatibility with other oils can be controlled to a desirable range that is neither too good nor too bad. By using such an oligoester having a controlled degree of polymerization in cosmetics, it is possible to produce cosmetics that have good adhesion to the skin and have sustained effects. |