Process for the preparation of pigment compositions

Details Process for the preparation of pigment compositions Process for the preparation of pigment compositions

C - Chemistry, Metallurgy

09

B

C09B 29/33 (2006.01) C09B 29/28 (2006.01) C09B 47/04 (2006.01) C09B 48/00 (2006.01) C09B 57/00 (2006.01) C09B 67/18 (2006.01) C09B 67/20 (2006.01) C09D 5/02 (2006.01) C09D 5/14 (2006.01) C09D 11/02 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2307428

Preparation of stabilised pigment compositions, comprising mixing a water- miscible quaternary ammonium compound of formula III (see formula I) wherein R1, R2, R3 and R4 independently of each other stand for C1-C22alkyl, C2-C22alkenyl, benzyl, pyridyl, quinolyl, isoquinolyl or polyoxyalkylenyl, and X - is an anion, a water-immiscible organic solvent and a pigment.

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