| 摘要 |
<p>PURPOSE:To obtain easily the title pigment which has a uniformly treated surface, in which the polymer and the organic pigment are firmly bonded together and which is good in dispersibility in various substances, by mixing an organic pigment with a specified polymer component under agitation under specified conditions. CONSTITUTION:The title pigment is easily produced by mixing an organic pigment (e.g., azoic or phthalocyanine pigment) with a poly(oxazoline) and/or a modified poly(oxazoline) (e.g., 2-ethyl-2-oxaxoline or its modification) under agitation at 0-400 deg.C. This process provides a surface-treated organic pigment which has a uniformly treated surface as compared with a conventional surface- treated organic pigment and in which the polymer used in the treatment is firmly bonded to the organic pigment. Because the polymer used has a high affinity for various substances, the obtained pigment is excellent in dispersibility in organic solvents, water, plastics, fibers, etc., and excels in color forming property, hiding power, etc. Therefore, it can be suitably used as a colorant for inks, toners, paints, fibers, plastics, rubbers, paper, etc.</p> |
