Surface-treated organic pigments

Details Surface-treated organic pigments Surface-treated organic pigments

C - Chemistry, Metallurgy

09

B

C09B 67/20 (2006.01) C08K 5/00 (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 67/18 (2006.01) C09D 7/12 (2006.01) C09D 11/02 (2006.01)

Patent

CA 2223372

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 tertiary alkyl primary amine having the formula (see formula I) wherein R1 is a C5-C30 (cyclo)aliphatic group, and R2 and R3 are independently C1-C6 alkyl, (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; and (b) collecting the pigment composition.

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