Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1997-02-18
1998-03-31
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106438, 106442, 106445, 106446, 106447, 106449, C09C 136
Patent
active
057333653
ABSTRACT:
A process for preparing a low-dusting, free-flowing pigment which has not been subjected to any micronizing treatment comprising the steps of providing an inorganic pigment material; providing a source of water; forming a fine, well dispersed slurry of the pigment and water; milling the slurry; depositing a treating agent having the formula ROOCCHSO.sub.3 MCH.sub.2 COOR' wherein R and R' are monovalent alkyl radicals having from about 2 to about 20 carbon atoms, and M is a metallic monovalent cation on the slurried milled pigment; and drying the pigment material having a treating agent deposited thereon. The invention also provides the free-flowing pigments produced by this process.
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Green Kelly A.
Halko John E.
Kauffman James W.
Story Phillip M.
Bell Mark L.
Hanegan Herbert M.
Hertzog Scott L.
Kerr-McGee Corporation
Lunsford III J. Rodgers
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