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1. 发明公开

EP0381896A3 Toner composition for electrophotography 失效
标题翻译：电子显微照相组合物
公开(公告)号：EP0381896A3
公开(公告)日：1991-09-25
申请号：EP89313199.5
申请日：1989-12-18
申请人： MITSUI TOATSU CHEMICALS, Inc.
发明人： Misawa, Akira , Ishikawa, Keiichi , Kazuo, Hisamatsu , Hagiwara, Kazuo , Masaaki, Shin
IPC分类号： G03G9/087
CPC分类号： C08G18/4255 , G03G9/08764 , Y10S430/105
摘要： The present invention provides a toner composition mainly comprising a binder resin (D) which contains at least 20% by weight of an urethane-modified polyester resin (C) obtained by reacting a polyester resin (A) with an isocyanate compound (B) and whose gel fraction ranges from 2 to 75% by weight. The toner composition exhibits good melting properties upon heating suitable for fast reproduction such as a low lower limit of the fixing temperature and a wide range of permitted fixing temperature and is further excellent in resistance to blocking, resistance to carrier contamination and image-forming properties. The binder resin as the main component of the toner composition can be prepared according to a method comprising the step of continuously adding an isocyanate compound (B) to a polyester resin (A) in an equivalent ratio, NCO/OH, of the amount of the NCO groups of the isocyanate compound (B) to that of OH groups of the polyester resin (A) ranging from 0.3 to 1.00 with kneading to react them, in a kneading means having a built-in screw.

2. 发明授权

EP0381896B1 Toner composition for electrophotography 失效
标题翻译：用于电子照相的调色剂组合物。
公开(公告)号：EP0381896B1
公开(公告)日：1995-10-04
申请号：EP89313199.5
申请日：1989-12-18
申请人： MITSUI TOATSU CHEMICALS, Inc.
发明人： Misawa, Akira , Ishikawa, Keiichi , Kazuo, Hisamatsu , Hagiwara, Kazuo , Masaaki, Shin
IPC分类号： G03G9/087
CPC分类号： C08G18/4255 , G03G9/08764 , Y10S430/105

3. 发明公开

EP0381896A2 Toner composition for electrophotography 失效
标题翻译：电子照相用调色剂组合物
公开(公告)号：EP0381896A2
公开(公告)日：1990-08-16
申请号：EP89313199.5
申请日：1989-12-18
申请人： MITSUI TOATSU CHEMICALS, Inc.
发明人： Misawa, Akira , Ishikawa, Keiichi , Kazuo, Hisamatsu , Hagiwara, Kazuo , Masaaki, Shin
IPC分类号： G03G9/087
CPC分类号： C08G18/4255 , G03G9/08764 , Y10S430/105
摘要： The present invention provides a toner composition mainly comprising a binder resin (D) which contains at least 20% by weight of an urethane-modified polyester resin (C) obtained by reacting a polyester resin (A) with an isocyanate compound (B) and whose gel fraction ranges from 2 to 75% by weight. The toner composition exhibits good melting properties upon heating suitable for fast reproduction such as a low lower limit of the fixing temperature and a wide range of permitted fixing temperature and is further excellent in resistance to blocking, resistance to carrier contamination and image-forming properties. The binder resin as the main component of the toner composition can be prepared according to a method comprising the step of continuously adding an isocyanate compound (B) to a polyester resin (A) in an equivalent ratio, NCO/OH, of the amount of the NCO groups of the isocyanate compound (B) to that of OH groups of the polyester resin (A) ranging from 0.3 to 1.00 with kneading to react them, in a kneading means having a built-in screw.
摘要翻译：本发明提供主要包含粘合剂树脂（D）的调色剂组合物，所述粘合剂树脂（D）包含至少20重量％的通过聚酯树脂（A）与异氰酸酯化合物（B）反应获得的氨基甲酸酯改性的聚酯树脂（C）和其凝胶分数在2-75重量％的范围内。该调色剂组合物在适于快速复制的加热下表现出良好的熔融性，例如定影温度的下限低和定影温度范围宽，并且抗结块性，耐载体污染性和成像性更加优异。作为调色剂组合物的主要组分的粘合剂树脂可以按照包括以下当量比NCO / OH连续地向聚酯树脂（A）中加入异氰酸酯化合物（B）的步骤的方法来制备：在具有内置螺杆的捏合装置中，异氰酸酯化合物（B）的NCO基团与聚酯树脂（A）的OH基团的NCO基团在0.3-1.00的范围内捏合反应。

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