Easily dispersible pigment composition

Details Easily dispersible pigment composition Easily dispersible pigment composition

C - Chemistry, Metallurgy

09

B

C09B 67/00 (2006.01) C09B 57/00 (2006.01) C09B 67/08 (2006.01) C09B 67/20 (2006.01)

Patent

CA 2516268

The present invention comprises a process for preparation of a stir-in pigment composition comprising a treatment of the pigment surface with at least one polymer and/or copolymer using water/solvent emulsion or pure organic solvent, miscible or non-miscible with the polymer or copolymer, or a mixture of these solvents or only water, in the presence of a surfactant, and optionally in the presence of a polar pigment derivative and/or a fluidiser and/or other components, said stir-in pigment composition as such as well as the use of this pigment composition for coloring high molecular~weight organic materials.

L'invention concerne un procédé de préparation d'une composition pigmentaire dispersée par agitation. Ce procédé consiste à traiter une surface de pigment avec au moins un polymère et/ou un copolymère au moyen d'une émulsion eau/solvant ou d'un solvant organique pur, miscible ou non miscible au polymère ou copolymère, ou au moyen d'un mélange de ces solvants ou uniquement au moyen d'eau, en présence d'un tensioactif, et éventuellement en présence d'un dérivé de pigment polaire et/ou d'un fluidificateur et/ou d'autres composants. L'invention concerne également ladite composition pigmentaire dispersée par agitation telle quelle ainsi que son utilisation pour la coloration de matériaux organiques de poids moléculaire élevé.

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