| abstract |
(57) [Summary]nThe present invention has excellent water and oil repellency, does not collapse makeup, and has a stretch on the skin. Providing cosmetic powder with good feel and use.nSOLUTION: [R f SO Two N (R 1 ) (CH Two ) m ] SiMe Two O [Si (R Two ) Two O] k Si (R Three ) Two [(CH Two ) n Si (R Four ) (R Five ) (R 6 )] To treat the powder surface Cosmetic powder. Where R f Is a monovalent polyfluorohydrocarbon Group, R 1 Is a hydrogen atom, R Two , R Three Is a group having 1 to 10 carbon atoms. Alkyl group, R Four Is a monovalent hydrolyzable group, R Five , R 6 Is charcoal An alkyl group having a prime number of 1 to 10, and the like. |