| abstract |
This thickening or solidifying agent for an oil agent contains a polyglycerin fatty acid ester satisfying the following conditions (A) to (E): (A) the average degree of polymerization of polyglycerin is at least 10; (B) at least one linear saturated fatty acid having 16-24 carbon atoms is contained; (C) at least one selected from among a hydroxy fatty acid and a hydroxy fatty acid polycondensate is contained; (D) the esterification rate is at least 70%; and (E) the mass ratio of component (B) to component (C) is 80:20 to 98:2. A thickening or solidifying agent according to the present invention can be used as a raw material for a cosmetic, a pharmaceutical product, food or drink, industrial use, and the like. |