Médoto para preparação de pigmento coloridos modificados
The present invention relates to a method of preparing a modified colored pigment comprising a pigment having attached at least one organic group. The method comprises the step of combining, in any order, a) a solution of an organic colorant in a solvent, b) at least one aromatic amine comprising th...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | Portuguese |
Published |
30.06.2015
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The present invention relates to a method of preparing a modified colored pigment comprising a pigment having attached at least one organic group. The method comprises the step of combining, in any order, a) a solution of an organic colorant in a solvent, b) at least one aromatic amine comprising the organic group, c) at least one diazotizing agent, d) an aqueous medium, e) optionally at least one acid, and f), optionally at least one second solvent, to form the modified colored pigment. |
---|---|
Bibliography: | Application Number: BR2009PI06711 |