METHOD FOR PREPARING NANODISPERSIONS OF FLUORINATED PHTHALOCYANINE PIGMENTS

A method for preparing a nanodispersion comprising the steps of: (i) introducing into a milling apparatus a solid fluorinated phthalocycanine pigment according to Formula (I). Wherein M is a metal cation chosen from Groups 1b, 2b, 2a or 3a of the Periodic Table of the Elements; R is fluorine, a perf...

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Main Authors BESSEY, PETER GERARD, KONDAKOVA, MARINA EDUARDOVNA, ROYSTER, JR., TOMMIE LEE
Format Patent
LanguageEnglish
French
Published 14.05.2010
Subjects
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
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Summary:A method for preparing a nanodispersion comprising the steps of: (i) introducing into a milling apparatus a solid fluorinated phthalocycanine pigment according to Formula (I). Wherein M is a metal cation chosen from Groups 1b, 2b, 2a or 3a of the Periodic Table of the Elements; R is fluorine, a perfluoroalkyl or a perfluoroaryl group; z is 1 to 4; L is an anionic ligand; and n is 0 or 1 such that the overall charge on the molecular unit is neutral; followed by milling with agitation the solid fluorinated phthalocyanine in an organic solvent into a suspension of particles so that at least 80 volume % of the particles have a particle size of less than 100nm. La présente invention concerne un procédé de preparation d'une nanodispersion comprenant les étapes suivantes: (i) l'introduction dans un appareil de broyage d'un pigment solide de phthalocycanine fluorée de formule (I), dans laquelle : M est un cation métallique choisi parmi les groupes 1b, 2b, 2a ou 3a du tableau périodique; R est fluor, un  perfluoroalkyle ou un groupe perfluoroalkyle; z est 1 à 4; L est un ligand anionique; et n est 0 ou 1 de sorte que la charge globale sur l'unité moléculaire est neutre; suivie du broyage avec agitation de la phthalocyanine solide fluorée dans un solvant organique en une suspension de particules de sorte qu'au moins 80% en volume des particules ont une taille de particules inférieure à 100 nm.
Bibliography:Application Number: WO2009US05649