Compositions and methods comprising pigments and polyprotic...

Details Compositions and methods comprising pigments and polyprotic... Compositions and methods comprising pigments and polyprotic...

C - Chemistry, Metallurgy

09

C

C09C 3/08 (2006.01) C09C 1/36 (2006.01) C09C 3/00 (2006.01)

Patent

CA 2588204

In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine and (ii) a polyprotic acid, wherein the mole ratio of the amine, alcohol, and/or alkanol amine to the polyprotic acid is greater than 3:1. In various embodiments, the pigments have improved stability, hiding power, tint strength and/or gloss.

Dans divers modes de réalisation, la présente invention a trait à une composition pigmentaire comprenant une particule de base et un agent de dispersion, l'agent de dispersion incluant un sel et/ou ester (i) d'une amide, d'un alcool, et/ou d'une alcanol-amine et (ii) un acide polyprotique, dans lequel le rapport moléculaire de l'amine, l'alcool, et ou l'alcanol-amine est supérieur à 3:1. Dans divers modes de réalisation, les pigments présentent une stabilité, un pouvoir masquant, un pouvoir colorant et/ou un brillant améliorés.

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