C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 67/20 (2006.01) C08K 9/04 (2006.01) C09B 19/02 (2006.01) C09B 47/04 (2006.01) C09B 48/00 (2006.01) C09B 57/00 (2006.01) C09B 67/08 (2006.01) C09B 67/10 (2006.01) C09B 67/18 (2006.01) C09D 7/12 (2006.01) C09D 11/02 (2006.01)
Patent
CA 2223334
This invention relates to a process for preparing pigment compositions comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a sterically hindered and/or bulky primary amine, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; (b) exposing the suspension to cavitating conditions; and (c) collecting the pigment composition.
Badejo Ibraheem T.
Franke Guenter G.
Shannon Charles E.
Corporation Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Sun Chemical Corporation
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