Patent ID: 6784271
Filing Date: 2004-08-31
Classification: A61K,A61Q,C08G

Abstract:
A modified silicone compound, said compound being synthesized by performing an addition reaction between an organohydrogenpolysiloxane, and at least one compound chosen from an alkenylated polyoxyalkylene compound, an alkenylated glycerin compound and an alkenylated sugar in the presence of a platinum catalyst or rhodium catalyst to obtain a reaction liquor, and said compound being purified by decomposing aldehyde condensation products remaining in the resulting silicone compound by:hydrogenating the reaction liquor from said addition reaction to hydrogenate unsaturated bonds, and treating with an aqueous solution of pH 7 or lower containing an acidic substance, or decomposing a propenyl etherated polyether in the reaction liquor from said addition reaction by treating with an aqueous solution of pH 7 or lower containing an acidic substance, and then hydrogenating the generated aldehydes and alkenylated ether compounds by hydrogenation, the degree of unsaturation (meq/g) in said modified silicone compound being 0.002 or less, and the generation amount of aldehydes when heat ageing is performed in 0.23N hydrochloric acid at 50Â° C. for 0.5 hours is 70 ppm or less of the modified silicone compound, thus producing a branched modified silicone compound.