Dispersing agent for organic pigment and use thereof

Details Dispersing agent for organic pigment and use thereof Dispersing agent for organic pigment and use thereof

2011-08-09

2011-08-09

Green, Anthony J (Department: 1731)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S413000, C106S474000, C106S476000, C106S494000, C106S498000, C252S582000, C252S586000, C359S891000, C427S162000, C430S007000, C534S604000, C534S606000, C534S616000, C534S653000, C534S751000, C534S752000

Reexamination Certificate

active

07993446

ABSTRACT:
This invention relates to a dispersant for an organic pigment comprising a compound represented by the below-described formula (1) or (2), and also to its use. According to the present invention, it is possible to provide a dispersant or the like, which can afford a coating formulation for a color filter. The coating formulation is prevented from an increase in viscosity and a reduction in storage stability even when the concentration of a pigment is high, and can fabricate the color filter with excellent transparency and color quality.

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Chemical Abstract No. 56:7626, Shishkina et al, “Structure and Reactions of Carbazole and its Derivatives. VIII. Products of the reaction of 3-aminocarbazole and 2-hydroxy-3-napthoic acid”, Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation) 1961, 34, 1895-8 [no month].
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European Patent Office, Supplementary European Search Report for European Patent Application No. EP 08 70 4125, Jan. 27, 2011. European Patent Office, Munich, Germany.

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