Pigment concentrate

C - Chemistry – Metallurgy – 09 – B

Patent

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Details

C09B 67/00 (2006.01) C08G 63/42 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2665825

Non-aqueous pigment concentrate comprising one or more pigments, one or more dispersants, and at least one resin, characterized in that the resin is a polyester comprising at least one oligo-ester building block with a hydrophobic tail linked thereto, wherein the hydrophobic tail is selected from the group consisting of: (a) branched hydrocarbons, (b) hydrocarbons containing a cyclic group, and (c) linear hydrocarbons, provided that when said linear hydrocarbon is linked to the oligo-ester building block via an ester group, the linear hydrocarbon contains 3 to 12 carbon atoms.

L'invention se rapporte à un concentré de pigments non aqueux comprenant au moins un pigment, au moins un dispersant et au moins une résine, caractérisé en ce que la résine est constituée d'un polyester comprenant au moins un bloc d'oligoester auquel est liée une queue hydrophobe, la queue hydrophobe étant choisie dans le groupe constitué (a) d'hydrocarbures ramifiés, (b) d'hydrocarbures comportant un groupe cyclique et (c) d'hydrocarbures linéaires, sous réserve que lorsque ledit hydrocarbure linéaire est lié au bloc d'oligoester par l'intermédiaire d'un groupe ester, l'hydrocarbure linéaire comporte de 3 à 12 atomes de carbone.

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