Method for the production of a pulverulent composition...

Details Method for the production of a pulverulent composition... Method for the production of a pulverulent composition...

C - Chemistry, Metallurgy

09

C

8/47, 117/48.1

C09C 3/10 (2006.01) C08J 3/215 (2006.01) C08K 9/04 (2006.01) C09B 67/00 (2006.01) C09B 67/02 (2006.01) C09C 3/04 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2006350

The invention relates to a method for the production of a pulverulent composition containing dyestuff and/or pigment composition particles, wherein in a plastic dispersed dyestuff and/or pigment composition particles are formed by mixing an aqueous paste containing dye- stuff and/or pigment particles in a plastic emulsion, removing water and pulverizing the mass obtained. The dyestuff or pigment is preferably chosen from the spinel pigments, carbon black and organic pigments, and trans- parent iron oxide; the plastic is preferably chosen from polystyrene, polyethene, polyvinyl chloride and polyvinyl acetate. The particles as obtained can be mixed with a molten wax composition, such that the dyestuff and/or pigment composition particles de- agglomerate, whereafter the mixture is dispersed and left to solidify. The de-agglomerates particles are more particularly smaller than 5 ?.

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