Nanosized particles of monoazo laked pigment

Details Nanosized particles of monoazo laked pigment Nanosized particles of monoazo laked pigment

C - Chemistry, Metallurgy

09

B

C09B 67/02 (2006.01) C09B 29/00 (2006.01) C09D 11/02 (2006.01)

Patent

CA 2633146

A nanoscale pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.

Une formulation de nanopigments comprend un pigment organique laqué monoazoïque comportant au moins un groupement fonctionnel, et un composé stabilisant stériquement encombré comptant au moins un groupement fonctionnel, dans laquelle le groupement fonctionnel se lie de manière covalente avec l'autre; la présence du stabilisant limite l'augmentation de la taille des particules et l'aggrégation de celles-ci, ce qui génère des particules de pigments nanométriques.

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