发明授权
US4869985A Electrophotographic elements containing certain naphthoquinone derivatives as electron-transport agents 失效
含有某些萘醌衍生物作为电子传递剂的电子照相元件

Electrophotographic elements containing certain naphthoquinone
derivatives as electron-transport agents
摘要:
New electrophotographic elements contain electron-transport agents comprising derivatives of certain substituted 1,4-naphthoquinones in which the keto oxygens at the 4-positions have been replaced by certain cyanoalkoxycarbonylmethylene groups.
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