FLUORINE-MODIFIED SILICONE DERIVATIVE, PRODUCTION THEREOF, AND COSMETIC CONTAINING THE SAME

摘要

A fluorine-modified polysiloxane derivative having an organopolysiloxane chain partially replaced by a siloxane chain represented by general formula (1), (2), (3), a process for the production thereof, an intermediate to be used for the production thereof, and a cosmetic containing the same, wherein Rf and Rf' represent each C1-C20 perfluoroalkyl or omega -H-perfluoroalkyl of the formula H(CF2)t- wherein t represents an integer of 1 to 20; a number of R<1> groups may be the same or different from each other and each represents C1-C20 linear or branched aliphatic hydrocarbyl or C5-C10 cycloaliphatic or aromatic hydrocarbyl; R<2> represents hydrogen, C1-C20 linear or branched aliphatic hydrocarbyl, C5-C10 cycloaliphatic or aromatic hydrocarbyl, C1-C20 perfluoroalkyl or omega -H-perfluoroalkyl of the formula H(CF2)u- wherein u represents an integer of 1 to 20; R<3> represents a C2-C10 divalent hydrocarbon group; X and Y represent each a single bond, -CO- or a C1-C6 divalent hydrocarbon group; l represents a number of 2 to 16; m and n represent each a number of 1 to 6; and r represents a number of 0 to 50. A cosmetic containing this compound has excellent water and oil repellency, can be held on the skin for long, and is comfortable to use.