Process for the production of a pigment composition

Details Process for the production of a pigment composition Process for the production of a pigment composition

C - Chemistry, Metallurgy

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C

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C09C 3/00 (2006.01) C09B 67/00 (2006.01) C09B 67/20 (2006.01)

Patent

CA 1107004

Case 3-11454/MA 1717 Canada A Process for the Production of a Pigment Composition Abstract of the Disclosure A process for the production of a non-dusting pigment composition by contacting an aqueous dispersion of an or- ganic pigment with a) a solution or dispersion of an alkaline soluble rosin acid derivative b) a sorbitan ester, and c) a water-insoluble organic carrier having a melting point below 100°C at a temperature above the melting point of both the sorbitan ester and the organic carrier, reducing the pH to below .epsilon., stirring the com- position until the pigment, rosin derivative, sorbi- tan ester and organic carrier are associated in gene- rally spherical granules and recovering the resulting granules.

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