Developing roller, process cartridge, and electrophotographic apparatus

A developing roller including a mandrel, an elastic layer provided on the mandrel and containing a cured material of an addition curable-type dimethyl silicone rubber, and a surface layer containing a urethane resin that covers the circumferential surface of the elastic layer. The urethane resin has...

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Bibliographic Details
Main Authors SAKURAI YUJI, KUSABA TAKASHI, KAWAMURA KUNIMASA, YAMADA MASAKI, ISHII TORU
Format Patent
LanguageEnglish
Published 03.12.2013
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Summary:A developing roller including a mandrel, an elastic layer provided on the mandrel and containing a cured material of an addition curable-type dimethyl silicone rubber, and a surface layer containing a urethane resin that covers the circumferential surface of the elastic layer. The urethane resin has a structure represented by the following formula (1), and one or both structures selected from a structure represented by the following formula (2) and a structure represented by the following formula (3) between two adjacent urethane linkages.
Bibliography:Application Number: US201213438580