申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US10765619B2
公开(公告)日:2020-09-08
A silicone resin represented by formula (1) and having a Mw of 1,000-8,000 is useful in cosmetics.
[(C6H5)3SiO1/2]a[R13SiO1/2]b[R22SiO2/2]c[R3SiO3/2]d[SiO4/2]e (1)
R1 is a C1-C8 alkyl group, C6-C12 aryl group (exclusive of phenyl) or C1-C8 fluorinated alkyl group, R2 and R3 are each independently a C1-C8 alkyl group, C6-C12 aryl group or C1-C8 fluorinated alkyl group, a=0-0.2, b=0.1-0.5, c=0-0.2, d=0.01-0.5, e=0-0.6, a+b+c+d+e=1.0, at least one phenyl group is included in the molecule. A film of the silicone resin has a refractive index of at least 1.48.
一种由式(1)表示且 Mw 为 1,000-8,000 的硅树脂可用于化妆品。
[(C6H5)3SiO1/2]a[R13SiO1/2]b[R22SiO2/2]c[R3SiO3/2]d[SiO4/2]e (1)
R1 是 C1-C8 烷基、C6-C12 芳基(不含苯基)或 C1-C8 氟化烷基,R2 和 R3 各自独立地是 C1-C8 烷基、C6-C12 芳基或 C1-C8 氟化烷基,a=0-0.2,b=0.1-0.5,c=0-0.2,d=0.01-0.5,e=0-0.6,a+b+c+d+e=1.0,分子中至少包含一个苯基。硅树脂薄膜的折射率至少为 1.48。