公开(公告)号：US06258504B1

公开(公告)日：2001-07-10

申请号：US09417430

申请日：1999-10-13

申请人： Jan Bartus ,  Robert Janules ,  James Boswell ,  Jeffrey Clark

发明人： Jan Bartus ,  Robert Janules ,  James Boswell ,  Jeffrey Clark

IPC分类号： G03G500

CPC分类号： G03G9/08702 ,  G03G9/08795 ,  G03G9/08797

摘要： A method for preparing thermoplastic toner resins is disclosed and the toner resins produced by said method. More particularly, an emulsion polymerized resin, constituting a high molecular weight component, is used as a seed for subsequent suspension polymerization of a lower molecular weight component. The emulsion micelles are swelled with monomers and subsequent suspension polymerization produces particles where the high and low molecular weight components are interpenetrated to form a resin with a bimodal distribution of molecular weight. A toner composition is made using the resin as the main component. The resin particle has a first resin portion having a particle size in the range of about 50 to about 200 nm. and a number average molecular weight in the range of about 104 to about 107, and a second resin portion formed around the first resin portion with a number average molecular weight lower than that of said first resin portion, the resin having a polydispersity in the range of 5 to 50.

摘要翻译： 公开了制备热塑性调色剂树脂的方法和通过所述方法制备的调色剂树脂。 更具体地，使用构成高分子量组分的乳液聚合树脂作为用于随后的低分子量组分的悬浮聚合的种子。 乳液胶束用单体溶胀，随后的悬浮聚合产生颗粒，其中高分子量组分和低分子量组分互穿形成具有分子量双峰分布的树脂。 使用树脂作为主要成分制成调色剂组合物。 树脂颗粒具有粒径在约50至约200nm范围内的第一树脂部分。 数均分子量在约104至约107的范围内，第二树脂部分形成在第一树脂部分周围，数均分子量低于所述第一树脂部分的数均分子量，该树脂的多分散性在该范围内 为5至50。