专利名称：Development method
发明人：末松 浩之，今井 栄一，竹之内 雅典申请号：JP特願昭58-61888
申请日：19830407
公开号：JP特公平6-97347B2
公开日：
湛江到北海
19941130
大鱼海棠讲的什么故事专利内容由知识产权出版社提供
家校协同>福建仙游
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摘要：PURPOSE:To obtain a positively electrostatically chargeable toner superior in durability, such as successive u characteristics, by incorporating a styrene- acrylic-aminoacrylic type copolymer polymerized with a nitrile type initiator. CONSTITUTION:The monomer ratio of styrene characteristic of positive chargeability to acrylic monomer affects not much on the chargeability in a styrene- acrylic-aminoacrylic type copolymer polymerized with a nitrile type initiator, but it is preferable to lect
50/50-99.5/0.5 from the view point of necessary durability of strength and fixasbility. It is necessary to decide a ratio of said styrene-acrylic monomers to aminoacrylic monomer by considering a state of developing process, toner compsn., magnetic carrier kind, etc. in order to decide a fundamental amt. of charge, but it is desirable to lect 80/20-99.5/0.5 in general. A desirable concn. of the nitrile type initiator is somewhat higher than ordinarily ud concn., preferably in an amt. of 1-20pts. per 100pts.wt. of the total weight of said copolymer.
申请人：キヤノン株式会社星罗棋布的近义词
地址：東京都大田区下丸子3丁目30番2号
贺六浑国籍：JP
代理人：丸島 儀一
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