发明授权
- 专利标题： Toner and developer
- 专利标题（中）： 墨粉和开发商
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申请号： US13210773申请日： 2011-08-16
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公开(公告)号： US08431304B2公开(公告)日： 2013-04-30
- 发明人: Tsuyoshi Sugimoto , Naohiro Watanabe , Osamu Uchinokura , Tomoyuki Satoh , Shinya Hanatani , Mamoru Hozumi
- 申请人： Tsuyoshi Sugimoto , Naohiro Watanabe , Osamu Uchinokura , Tomoyuki Satoh , Shinya Hanatani , Mamoru Hozumi
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2010-194609 20100831
- 主分类号： G03G9/00
- IPC分类号： G03G9/00
摘要：
A toner containing: a non-crystalline polyester resin; a crystalline polyester resin; a releasing agent; a graft-modified polymer; and a colorant, wherein the graft-modified polymer is a polymer having a glass transition temperature of higher than 40° C. but lower than 80° C., and obtained by grafting an acrylic resin onto at least one of a hydrocarbon wax and a crystalline polyester resin, and wherein a SP value of the non-crystalline polyester resin is defined as SP1, a SP value of the crystalline polyester resin is defined as SP2, a SP value of the releasing agent is defined as SP3, and a SP value of the graft-modified polymer is defined as SP4, and SP1, SP2, SP3 and SP4 satisfy relations represented by Formulas (1) to (3): SP1 > SP4 > SP2 >SP3Formula (1), 0.1
公开/授权文献
- US20120052434A1 TONER AND DEVELOPER 公开/授权日：2012-03-01
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