发明授权
- 专利标题: Toner and developer
- 专利标题(中): 墨粉和开发商
-
申请号: US12624714申请日: 2009-11-24
-
公开(公告)号: US08703376B2公开(公告)日: 2014-04-22
- 发明人: Saori Yamada , Shinya Nakayama , Hisashi Nakajima , Mitsuo Aoki , Hyo Shu , Hiroyuki Kishida
- 申请人: Saori Yamada , Shinya Nakayama , Hisashi Nakajima , Mitsuo Aoki , Hyo Shu , Hiroyuki Kishida
- 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: JP2008-304797 20081128; JP2009-005823 20090114
- 主分类号: G03G9/087
- IPC分类号: G03G9/087 ; G03G13/20
摘要:
A toner, wherein a binder resin contains a polyester resin (A) produced by polycondensing an alcohol component with a carboxylic acid component which contains a rosin compound in an amount of 5% by mass or more of the total amount by mass of the alcohol component and the carboxylic acid component, and a polyester resin (B) produced by polycondensing an alcohol component containing an alkylene oxide adduct of bisphenol A represented by General Formula (1) given below with a carboxylic acid component, and wherein the toner contains abietic acid in an amount of 0.01% by mass to 1% by mass: where R1 and R2 each represent C2-C4 alkylene; R3 and R4 are each any one of a hydrogen atom, C1-C6 straight-chain alkyl, and C1-C6 branched-chain alkyl; and x and y each represent a positive integer and the sum of x and y is 1 to 16.
公开/授权文献
- US20100136471A1 TONER AND DEVELOPER 公开/授权日:2010-06-03
信息查询