C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
44/6, 31/69
C09K 3/22 (2006.01) B01J 2/30 (2006.01) B05D 7/00 (2006.01)
Patent
CA 1250416
ABSTRACT OF THE DISCLOSURE The present invention is directed to a method of surface treatment characterized by applying a surface treating agent to a powdery and granular material stored in the open air, said surface treating agent being an emulsion containing 0.5 to 50% by weight of a solid material as an essential component and the residue thereof being water, said solid material comprising (I) 100 parts by weight of a petroleum wax component selected from the group consisting of slack waxes with 1% by weight or more of an oil content, slack microcrystalline waxes with 1% by weight or more of an oil content, paraffin waxes, microcrystalline waxes, and mixtures thereof, and (III) 5 to 500 parts by weight of a polymer component having adhesive properties and a minimum film- forming temperature of 40°C or less, said polymer component (II) being selected from the group consisting of homopolymers of vinyl acetate, copolymers of vinyl acetate with other monomers, and mixtures thereof, homopolymers of acrylic acid or acrylic esters, copolymers of acrylic acid or acrylic esters with other monomers, and mixtures thereof.
469243
Gowling Lafleur Henderson Llp
Nippon Oil Co. Ltd.
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