Perylene pigment compositions

C - Chemistry – Metallurgy – 09 – B

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C09B 5/62 (2006.01) C07D 471/16 (2006.01) C09B 67/22 (2006.01)

Patent

CA 2430690

This invention relates to perylene pigment compositions containing a reactive co-precipitated blend of: (1) about 75 to about 99.9 mol %, relative to the pigment composition, of a compound having formula (I) wherein R is hydrogen, C1-C6 alkyl, C5-C8 cycloalkyl, C7-C16 aralkyl, or C6-C10 aryl, A is C1-C6 alkyl, C1-C6 alkoxy, a sulfonyl group, amino, ammonium, hydroxy, nitro, or halogen, and m is zero or a number from 1 to 8; and about 0.1 to about 25 mol %, relative to the pigment composition, of a perylene dicarboxamidine imide having formula (II) wherein W is optionally substituted or modified C2-C3 alkylene, and R, A, and m are defined as above.

L'invention concerne des compositions pigmentaires à base de pérylène contenant un mélange réactif co-précipité. Ce mélange comprend 1) environ 75 à 99,9 % en moles, par rapport à la composition pigmentaire, d'un composé représenté par la formule (I) dans laquelle R représente hydrogène, C¿1?-C¿6? alkyle, C¿5?-C¿8? cycloalkyle, C¿7?-C¿16? aralkyle, ou C¿6?-C¿10? aryle, A représente C¿1?-C¿6? alkyle, C¿1?-C¿6? alcoxy, un groupe sulfonyle, amino, ammonium, hydroxy, nitro, ou halogène, et m est égal à zéro ou à un nombre compris entre 1 et 8; et 2) environ 0,1 à 25 % en moles, par rapport à la composition pigmentaire, d'un pérylène dicarboxamidine imide représenté par la formule (II) dans laquelle W représente C¿2?-C¿3? alkylène éventuellement substitué ou modifié, et R, A, et m sont tels que définis ci-dessus.

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