Colloid systems and wetting agents; subcombinations thereof; pro – Continuous or semicontinuous solid phase
Reexamination Certificate
2009-01-09
2011-11-01
Choi, Ling (Department: 1763)
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous or semicontinuous solid phase
C428S032100
Reexamination Certificate
active
08048932
ABSTRACT:
The present invention relates to a method for fabricating calcium carbonate nanoparticles dispersed in water from ground calcium carbonate of micrometer (μm) order using beads milling. More particularly, the present invention relates to a method for fabricating calcium carbonate nanoparticles dispersed in water by which a complex aqueous slurry comprising coarse ground calcium carbonate having an average particle size of several micrometers (μm) and a surfactant is subjected to beads milling, such that grinding and dispersion in water of the ground calcium carbonate occur simultaneously, and the resultant calcium carbonate nanoparticles have an average particle size of 10-100 nm and a unimodal clustering distribution.
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Cho Kuk
Jang Hee Dong
Kim Byoung-Gyu
Choi Ling
Korea Institute of Geoscience and Material Resources
The Webb Law Firm
Wang Chun-Cheng
LandOfFree
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