申请人:——
公开号:US20040242912A1
公开(公告)日:2004-12-02
A branched tetrasiloxane is prepared by preforming a liquid mixture of a disiloxane compound, an alcohol and an acid catalyst, adding a trialkoxysilane compound to the mixture for reaction, and adding water to the reaction mixture for co-hydrolysis, thereby forming a branched tetrasiloxane. The method is capable of preparing a branched lo tetrasiloxane, especially methyltris(trimethylsiloxy)silane having a sufficiently high purity to use as cosmetic oil in good yields.
一种分支的四硅氧烷是通过预先混合二硅氧烷化合物、醇和酸催化剂,向混合物中加入三烷氧基硅烷化合物进行反应,并向反应混合物中加入水进行共水解,从而形成分支的四硅氧烷。该方法能够制备出分支的低聚四硅氧烷,特别是甲基三(三甲基硅氧基)硅烷,其纯度足够高,可以作为化妆品油使用,并且产量较高。