-
1.发明授权公开(公告)号：US09182694B2
公开(公告)日：2015-11-10
申请号：US13827972
申请日：2013-03-14
申请人： Ricoh Company, Ltd.
发明人： Saori Yamada , Hisashi Nakajima , Masashi Nagayama , Shinya Hanatani , Mariko Takii , Yoshitaka Sekiguchi
CPC分类号： G03G9/08755 , G03G9/081 , G03G9/0821 , G03G9/08711 , G03G9/08722 , G03G9/08782 , G03G9/08784 , G03G9/08795 , G03G9/08797 , G03G9/09791
摘要： A toner, including: a binder resin; and a colorant, wherein the binder resin contains: a crystalline polyester resin (A); a non-crystalline resin (B); and a composite resin (C), where the composite resin (C) contains a condensation polymerization resin unit and an addition polymerization resin unit, wherein the toner contains chloroform insoluble matter in an amount of 1% by mass to 30% by mass, wherein the toner has a molecular weight distribution having a main peak in a range of 1,000 to 10,000 and a half width of 15,000 or less, where the molecular weight distribution is obtained through gel permeation chromatography (GPC) of tetrahydrofuran soluble matter of the toner, and wherein the toner has an endothermic peak in a range of 90° C. to 130° C. in measurement through differential scanning calorimetry (DSC).
摘要翻译： 一种调色剂，包括：粘合剂树脂; 和着色剂，其中所述粘合剂树脂包含：结晶聚酯树脂（A）; 非结晶性树脂（B）; 和复合树脂（C），其中复合树脂（C）含有缩聚树脂单元和加成聚合树脂单元，其中调色剂含有1质量％至30质量％的氯仿不溶物质，其中 调色剂的分子量分布具有在1000至10,000的主峰和半数宽度为15,000或更小的分子量分布，其中分子量分布通过调色剂的四氢呋喃可溶物质的凝胶渗透色谱（GPC）获得，以及 其中调色剂在通过差示扫描量热法（DSC）的测量中具有在90℃至130℃范围内的吸热峰。
-
公开(公告)号：US09348259B2
公开(公告)日：2016-05-24
申请号：US14278119
申请日：2014-05-15
申请人： RICOH COMPANY, LTD.
发明人： Masashi Nagayama , Hisashi Nakajima , Yoshitaka Sekiguchi , Saori Yamada , Shinya Hanatani , Mariko Takii , Hiroshi Hosokawa , Shunji Katoh , Shinji Tamaki , Hiroshi Ikeguchi , Kenji Kikuchi , Michiharu Suzuki
CPC分类号： G03G15/0839 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G15/0872 , G03G15/0877
摘要： A toner housing container includes a container body housing a toner; a conveying portion conveying the toner from one end of the container body, in a longer direction of the container body, to its other end at which a container opening portion is provided; a pipe receiving port receiving a conveying pipe fixed to a toner conveying device; and an uplifting portion moving the toner toward a toner receiving port of conveying pipe. Such toner has a molecular weight distribution having a peak in a range of 103 to 104, and has C/R of from 0.03 to 0.55 between peak height C attributed to crystalline polyester resin and R attributed to non-crystalline resin when measured by FT-IR after stored at 45° C. for 12 hours.
摘要翻译： 调色剂容纳容器包括容纳调色剂的容器主体; 将容器主体的一端从容器主体的较长方向输送调色剂的输送部分设置到容器开口部分的另一端; 接收固定到调色剂输送装置的输送管的管接收口; 以及将调色剂朝向输送管的调色剂接收口移动的提升部分。 这种调色剂的分子量分布在103〜104的范围内具有峰值，并且当归因于结晶聚酯树脂的峰高度C和归因于非结晶树脂的R的C / R为0.03至0.55时，通过FT- IR在45℃下储存12小时。
-
公开(公告)号：US11106150B2
公开(公告)日：2021-08-31
申请号：US16683534
申请日：2019-11-14
申请人： RICOH COMPANY, LTD.
摘要： A carrier for forming an electrophotographic image is provided. The carrier includes a core particle comprising a manganese-based ferrite particle having an apparent density of from 2.0 to 2.2 g/cm3 and a magnetization of from 44 to 52 emu/g in a magnetic field of 500 Oe; and a coating layer coating a surface of the core particle. The coating layer contains a carbon black, an inorganic particle A, and an inorganic particle B. The inorganic particle A and the carbon black each have a concentration gradient in a thickness direction of the coating layer. A concentration of the inorganic particle A increases toward a surface of the coating layer, and a concentration of the carbon black decreases toward the surface of the coating layer.
-
-
搜索结果
3 条记录 (耗时 0.059 秒)
