申请人:Xerox Corporation
公开号:EP2290013A2
公开(公告)日:2011-03-02
Nanoscale particles of benzimidazolone pigments are made by providing one or more organic pigment precursor(s) to a benzimidazolone pigment, providing a solution or suspension of a sterically bulky stabilizer compound that associates non-covalently with a benzimidazolone moiety on one of the pigment precursors, wherein the sterically bulky stabilizer compound is selected from the group consisting of substituted pyridine derivatives, alkylated benzimidazolone compounds, alkylated derivatives of aromatic acids, and mixtures thereof, and carrying out a coupling reaction to form a benzimidazolone pigment composition, whereby one or more functional moieties on the benzimidazolone pigment is non-covalently associated with the sterically bulky stabilizer, so as to limit an extent of particle growth and aggregation and results in nanoscale pigment particles.
苯并咪唑酮颜料的纳米级颗粒是通过提供一种或多种苯并咪唑酮颜料的有机颜料前体,提供与颜料前体之一上的苯并咪唑酮分子非共价结合的立体笨重稳定剂化合物的溶液或悬浮液制成的,其中立体笨重稳定剂化合物选自由取代吡啶衍生物组成的组、烷基化苯并咪唑酮化合物、芳香族酸的烷基化衍生物及其混合物组成的组,并进行偶联反应以形成苯并咪唑酮颜料组合物,其中苯并咪唑酮颜料上的一个或多个官能团与立体笨重稳定剂非共价地结合,从而限制颗粒的生长和聚集程度,并形成纳米级颜料颗粒。