Electrophotographic toner, method for producing the same, electrophotographic developer, and image forming method

An electrophotographic toner having a core-shell structure including a crystalline resin in its core region or a sea-island structure including a crystalline resin in its island region, wherein the toner has 1) a resistance of 5.0x1012 Omega.cm or higher, 2) a dynamic viscosity coefficient of 3x103...

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Bibliographic Details
Main Authors HAMANO HIROKAZU, IMAI TAKASHI, FUKUSHIMA NORIHITO, YAMADA HIROKAZU, ISHIHARA YUKA, ARIMA YASUHIRO, DAIMON KATSUMI, NAKAMURA MASAKI
Format Patent
LanguageEnglish
Published 22.09.2005
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:An electrophotographic toner having a core-shell structure including a crystalline resin in its core region or a sea-island structure including a crystalline resin in its island region, wherein the toner has 1) a resistance of 5.0x1012 Omega.cm or higher, 2) a dynamic viscosity coefficient of 3x103 Pa.s or higher at a temperature which is 50° C. higher than a melting point of the crystalline resin, and 3) a dynamic viscosity coefficient of 1x105 Pa.s or lower at a temperature which is 10° C. higher than the melting point of the crystalline resin.
Bibliography:Application Number: US20040963728