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    • 16. 发明授权
    • Odorless modified silicone compound, cosmetic preparation containing the same, and method of purifying modified silicone compound having branch polymer comprising hydrophilic group
    • 无水改性硅氧烷化合物,含有该化合物的化妆品,以及具有包含亲水基团的支链聚合物的改性硅氧烷化合物的纯化方法
    • US06784271B2
    • 2004-08-31
    • US10221274
    • 2002-09-10
    • Tetsuo Nakanishi
    • Tetsuo Nakanishi
    • C08G7712
    • A61K8/894A61Q1/02A61Q1/06A61Q1/10A61Q1/14A61Q5/00A61Q15/00A61Q17/04A61Q19/00A61Q19/04A61Q19/10C08G77/14C08G77/34C08G77/46
    • A modified silicone compound having a branch polymer comprising a hydrophilic group, this compound being synthesized by performing an addition reaction between an organohydrogenpolysiloxane, and at least one compound chosen from an alkenylated polyoxyalkenylated compound, an alkenylated glycerine compound and an alkenylated sugar in the presence of a platinum catalyst or rhodium catalyst, and a cosmetic material containing this modified silicone compound. This compound is purified by decomposing aldehyde condensation products remaining in the silicone by alkylating the remaining unsaturated bonds after hydrogenating the reaction liquor after said addition reaction, and treating with an aqueous solution of pH 7 or lower containing an acidic substance, or decomposing the propenyl etherated polyether in the reaction liquor after said addition reaction by treating with an aqueous solution of pH 7 or lower containing an acidic substance, and then alkylating the generated aldehydes and alkenylated ether compounds by hydrogenation. The degree of unsaturation (meq/g) in the modified silicone compound is 0.002 or less. The generation amount of aldehydes when heat ageing is performed in 0.23N hydrochloric acid at 50° C. for 0.5 hours is 70 ppm or less of the modified silicone compound.
    • 一种具有包含亲水基团的分支聚合物的改性硅氧烷化合物,该化合物是通过在有机氢聚硅氧烷和至少一种选自烯基化的聚氧化烯化的化合物,链烯基化的甘油化合物和链烯基糖的化合物之间进行加成反应而合成的, 铂催化剂或铑催化剂,以及含有该改性硅酮化合物的化妆品。 该化合物通过在加成反应后氢化反应液后将残留的不饱和键进行烷基化,用含有酸性物质的pH7以下的水溶液进行处理,分解存在于硅氧烷中的醛缩合产物, 在通过用含有酸性物质的pH7或更低的水溶液处理之后,在所述加成反应后的反应液中的聚醚,然后通过氢化将所生成的醛和烯基醚化合物烷基化。 改性硅氧烷化合物中的不饱和度(meq / g)为0.002以下。 在0.23N盐酸中,在50℃下进行0.5小时热老化时的醛的产生量为70ppm以下。