Method for producing polyester resin particle dispersion material, method for producing polyester resin particles, and method for producing electrophotographic spherical toner
申请人:DAINIPPON INK AND CHEMICALS, INC.
公开号:EP1202122A1
公开(公告)日:2002-05-02
A polyester resin particle dispersion material, in which the average particle size can be easily controlled within a broad range and is less likely to form irregular particles, and which is also suited for use in adhesives, is produced by dispersing a resin melt containing, as an essential component, a polyester resin (A) having a terminal structure in which an alkyl group having 4 to 20 carbon atoms or an alkenyl group having 4 to 20 carbon atoms is bonded to a carbon atom to which a carboxyl group is attached, or a carbon atom adjacent to this carbon atom, a portion or all of carboxyl groups in the polyester resin (A) being neutralized with a basic compound, in a heated aqueous medium in a melted state, and cooling the dispersed resin melt.
一种聚酯树脂颗粒分散材料,其平均粒径易于控制在较大范围内,不易形成不规则颗粒,也适用于粘合剂、聚酯树脂 (A),其末端结构为具有 4 至 20 个碳原子的烷基或具有 4 至 20 个碳原子的烯基与连接有羧基的碳原子或与该碳原子相邻的碳原子键合,聚酯树脂 (A) 中的部分或全部羧基用碱性化合物中和。