Pigment granulate, method for producing the same and use...

Details Pigment granulate, method for producing the same and use... Pigment granulate, method for producing the same and use...

C - Chemistry, Metallurgy

09

C

C09C 1/56 (2006.01)

Patent

CA 2744421

The invention relates to a pigment granulate which contains 40 to 65% by weight of pigment and at least 10% by weight of a compound of general formula (I) CH3-(CH2)n-CH2-O-[(CH2)p-O]m-H, wherein n=8-18, p=1-4 and m=35-100, the weight ratio of the compound of general formula I to the pigment being >= the STSA surface area of the pigment in m2/g multiplied by 0.0021 g/m2 and the mass-weighted particle size of the pigment granulate being < 20 µm. The pigment granulate can be produ-ced by dispersing the pigment and the compound of formula I in a solvent and then drying the dispersion obtained. The pigments according to the invention can be used for dying and/or the antistatic finishing in water-based paints and lacquer systems, dispersi-on paints, printing inks, ink systems and coating systems.

L'invention concerne une granule pigmentaire contenant entre 40 et 65% en poids de pigments et au moins 10% en poids d'un composé de formule (I) CH3-(CH2)n-CH2-O-[(CH2)p-O]m-H, dans laquelle n=8-18, p=1-4 et m=35-100, le rapport molaire du composé de formule (I) par rapport au pigment étant supérieur ou égal à la surface active STSA du pigment par m /g multiplié par 0,0021 g/m et la taille de particule moyenne pondérée de la granule pigmentaire est inférieure à 20 µm. La granule pigmentaire peut être produite par dispersion du pigment et du composé de formule (I) dans un solvant, puis la dispersion est séchée. Les pigments, selon l'invention, peuvent être utilisés pour la coloration et/ou le finissage antistatique dans des peintures à l'eau et des vernis, des peintures de dispersion, des encres d'impression, des encres et des revêtements.

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