发明申请
US20100040967A1 HYPER-BRANCHED POLYMER OF AN ESTER TYPE, AND A TONER FOR ELECTROPHOTOGRAPHY USING THE SAME
审中-公开
ESTER类型的超分散聚合物和使用其的电子显微镜的调色剂
- 专利标题: HYPER-BRANCHED POLYMER OF AN ESTER TYPE, AND A TONER FOR ELECTROPHOTOGRAPHY USING THE SAME
- 专利标题(中): ESTER类型的超分散聚合物和使用其的电子显微镜的调色剂
-
申请号: US12514477申请日: 2007-08-21
-
公开(公告)号: US20100040967A1公开(公告)日: 2010-02-18
- 发明人: Ryo Hamasaki , Hideki Tanaka , Yasunari Hotta
- 申请人: Ryo Hamasaki , Hideki Tanaka , Yasunari Hotta
- 申请人地址: JP Osaka-shi
- 专利权人: TOYO BOSEKI KABUSHIKI KAISHA
- 当前专利权人: TOYO BOSEKI KABUSHIKI KAISHA
- 当前专利权人地址: JP Osaka-shi
- 优先权: JP2006-306291 20061113
- 国际申请: PCT/JP2007/066158 WO 20070821
- 主分类号: G03G9/08
- IPC分类号: G03G9/08 ; C08G63/00
摘要:
[PROBLEMS] To produce a hyper-branched polymer having excellent resin strength, a good anti-blocking property and less environmental dependence.[MEANS FOR SOLVING PROBLEMS] Disclosed are: a hyper-branched polymer of an ester type, wherein number-average molecular weight is 1,000 to 60,000, weight-average molecular weight/number-average molecular weight is within a range of from 2 to 15, glass transition temperature is not lower than 30° C. and hydroxyl value is 2 to 450 mg KOH/g; and a toner for electrophotography using the polymer. Preferably, disclosed are: the hyper-branched polymer of an ester type, wherein alicyclic or aromatic carboxylic acid where a molecular weight is not less than 100 has been made to react with a functional group of the core part of the hyper-branched structure of an ester type; and a toner for electrophotography using the polymer.