WATER-SOLUBLE METAL ALCOHOLATE DERIVATIVE, PROCESS FOR PRODUCTION OF THE DERIVATIVE, AND SOLID GELATINOUS AGENT FOR EXTERNAL APPLICATION COMPRISING THE DERIVATIVE
申请人:SHISEIDO COMPANY, LTD.
公开号:EP1930337A1
公开(公告)日:2008-06-11
The object of the present invention is to provide a production method of water-soluble silane derivatives, the separation and purification of which are easy, and the reaction for which can be conducted under an industrially practicable temperature condition (under the temperature condition of 90 °C or lower) and to provide compounds with which solid gelatinous external preparations, with excellent stability against a temperature change and against an effect of additives and with excellent usability, can be prepared. The water-soluble silane derivative could be formed by the substitution reaction of a metal alkoxide with a polyhydric alcohol under the presence of a solid catalyst. According to this production method, the separation of the catalyst from the product is very easy, and the reaction can be carried out under the temperature condition of 90 ° C or lower. The obtained water-soluble metal alcoholate derivative can satisfactory solidify an aqueous formulation of an external preparation by its blending thereinto. The obtained solid gelatinous external preparation has excellent stability against a temperature change and against the effect of additives. In addition, the external preparation is easily disintegrated during use; thus the usability such as easiness to be scooped up with fingers and spreadability during application is excellent.
本发明的目的是提供一种水溶性硅烷衍生物的生产方法,该方法易于分离和提纯,其反应可在工业上可行的温度条件下(90℃或更低温度条件下)进行,并提供一种化合物,用其制备的固体胶状外用制剂对温度变化和添加剂的影响具有极好的稳定性,并具有极好的实用性。水溶性硅烷衍生物可以通过金属烷氧基化合物与多元醇在固体催化剂存在下发生取代反应而形成。根据这种生产方法,催化剂与产品的分离非常容易,反应可在 90 ℃ 或更低的温度条件下进行。所获得的水溶性金属醇酸酯衍生物通过与外用制剂的水性配方混合,可以令人满意地固化外用制剂。所获得的固体胶状外用制剂对温度变化和添加剂的影响具有极佳的稳定性。此外,外用制剂在使用过程中很容易崩解,因此具有极佳的可用性,如易于用手指舀起和在涂抹过程中易于涂抹。