POLYURETHANE FOR COSMETIC PREPARATIONS AND METHOD FOR PRODUCING POLYURETHANE FOR COSMETIC PREPARATIONS

The present invention provides: a polyurethane for cosmetic preparations, which is obtained by reacting (A) a polyester polyol that has two or more hydroxyl groups in each molecule, (B) an aliphatic diol that is composed of two hydroxyl groups and an aliphatic hydrocarbon group having 3-8 carbon atoms, (C) a carboxyl group-containing diol that has a carboxyl group and two hydroxyl groups in each molecule, while having a molecular weight of 100-300, (D) a diisocyanate that contains at least one compound selected from the group consisting of isophorone diisocyanate, hexamethylene diisocyanate and dicyclohexylmethane-4, 4'-diisocyanate, water and (E) a chain extender that contains at least one compound selected from the group consisting of ethylene diamine and propylene diamine, and which has a weight average molecular weight of from 50,000 to 300,000; a production method; and a cosmetic preparation which contains this polyurethane for cosmetic preparations. 本发明提供一种化妆料用聚氨酯、制造方法、包含该化妆料用聚氨酯的化妆料，所述化妆料用聚氨酯是使如下物质进行反应