Process and cosmetic composition for gloss and blur

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United States of America Patent

PATENT NO 11779525
SERIAL NO

17295620

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Abstract

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Disclosed a method of preparing composite particles comprising a non-porous spherical particulate inorganic material deposited on a plate-like inorganic material, where refractive index of said particulate inorganic material is greater than that of said plate-like inorganic particulate material, wherein, said spherical material occupies 20 to 80% of total surface area of said plate-like material and wherein the amount of said spherical material accounts for 2 to 20 wt % of said composite particles, further wherein said plate-like inorganic material is mica and said non-porous spherical particulate inorganic material is silicone dioxide, said method comprising the steps of: (iv) silanization of said plate-like inorganic material to get a silanized material having functional groups “A”; (v) silanization of said non-porous spherical particulate inorganic material to get a silanized material having functional groups “B”, where A≠B; and where said “A” and said “B” are capable of reacting with each other such that by way of their reaction, said non-porous spherical particulate inorganic material deposits on said plate-like inorganic material; and, (vi) reacting said silanized material having functional groups “A” with said silanized material having functional groups “B”.

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Patent Owner(s)

Patent OwnerAddress
CONOPCO INC D/B/A UNILEVER800 SYLVAN AVENUE AG WEST S WING ENGLEWOOD CLIFFS NJ 07632

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Huailing Hefei, CN 1 0
Pan, Zhao Hefei, CN 2 18
Wang, Lin Shanghai, CN 481 3933
Yu, Shuhong Hefei, CN 2 0
Zhu, Shuqi Shanghai, CN 5 0

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