Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2007-07-24
2007-07-24
Jackson, Monique R. (Department: 1773)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S403000, C428S407000
Reexamination Certificate
active
10157987
ABSTRACT:
There are provided inorganic/polymer composite particles having good UV-scattering efficiency and improved dispersion stability in organic formulation; and a method for preparing the same, which comprises the following steps of(1) dispersing hydrophobic-treated inorganic particles in monomer and then adding initiator thereto;(2) emulsifying the inorganic dispersion of step (1) in presence of surfactant and dispersion stabilizer; and(3) suspension polymerizing the inorganic/monomer emulsion of step (2), to give inorganic/polymer composite particles.
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Kang Hak Hee
Kim Han Kon
Kim Jin Woong
Lee Young Ha
Shim Jong Won
Amorepacific Corporation
Jackson Monique R.
LandOfFree
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