申请人:SHISEIDO COMPANY LIMITED
公开号:EP0922740A1
公开(公告)日:1999-06-16
A gelation agent or an emulsifying agent which is characteristically obtained by mixing a water swelling clay mineral with a quarternary ammonium salt type cation surfactant and a fatty acid or a higher alcohol which is liquid at normal temperatures. The present invention can provide a gelation agent or an emulsifying agent which can be added and mixed to a wide range of oils to produce a gel composition or an emulsified composition with superior stability, safety and usability
The gelation agent or the emulsifying agent of the present invention or the gel composition or the emulsified composition using this agent is preferably used as the base agent of cosmetics and quasi-drugs, for example.
Also, the sunscreen cosmetic prepared by adding ultraviolet light protection powder to the aforementioned emulsified composition exhibits superior usability, i.e. it exhibits good adhesion to the skin and superior water resistance and it does not become conspicuous when the applied site comes in contact with sweat or water from the ocean or pool. Therefore, it is particularly useful when a high ultraviolet light protection effect is desired because it allows the required amount of the ultraviolet light protection powder to be blended in without concern for conspicuous whiteness.
一种凝胶剂或乳化剂,其特征在于通过将水膨胀粘土矿物与仲铵盐型阳离子表面活性剂和脂肪酸或在常温下呈液态的高级醇混合而得到。本发明可以提供一种凝胶剂或乳化剂,它可以添加和混合到各种油类中,生产出稳定性、安全性和可用性都很好的凝胶组合物或乳化组合物。
本发明的凝胶剂或乳化剂或使用该凝胶剂或乳化剂的凝胶组合物或乳化组合物最好用作化妆品和准药物等的基剂。
此外,在上述乳化组合物中添加紫外线防护粉末制备的防晒化妆品具有优异的实用性,即与皮肤有良好的粘附性和优异的防水性,并且在涂抹部位接触到汗水或海水或泳池水时不会变得很明显。因此,当需要较高的紫外线防护效果时,它尤其有用,因为它可以混合所需量的紫外线防护粉末,而不必担心显眼的白度。