Silicone resin, making method, and cosmetics
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United States of America Patent
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Jun 15, 2021
Grant Date -
Mar 12, 2020
app pub date -
Nov 15, 2019
filing date -
Jun 4, 2018
priority date (Note) -
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Abstract
A silicone resin represented by formula (1) and having a Mw of 1,000-8,000 is useful in cosmetics.
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.
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