| 摘要 |
This invention provides a sterol-modified silicone compound which is low melting, hydrophilic and very suitable for emulsifying, represented by the general formula R<SUP>1</SUP><SUB>a</SUB>R<SUP>2</SUP><SUB>b</SUB>SiO<SUB>(4-a-b)/2</SUB>, and having a melting point of 40° C. or less, and provides a cosmetic material containing this silicone compound having excellent stability and moisture retention properties R<SUP>1 </SUP>in the general formula is a monofunctional alkyl group, aryl group, aralkyl group or fluorine-substituted alkyl group having 1-10 identical or different carbon atoms, which does not contain an aliphatic unsaturated bond, and R<SUP>2 </SUP>is an organic group represented by the general formula -(C<SUB>p</SUB>H<SUB>2p</SUB>O(C<SUB>q</SUB>H<SUB>2q</SUB>O)<SUB>r</SUB>-X, where X is a monofunctional residue excepting the hydroxyl group of sterol, a and b are integers satisfying the relations 1.0<=a<=2.5, 0.001<=b<=1.0, and 1.5<=a+b<=2.6, respectively, p is an integer in the range 2-6, q is an integer in the range 2-4, and r is an integer in the range 3-200. |
