发明授权
- 专利标题: Long potlife, low temperature cure overcoat for low surface energy photoreceptors
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申请号: US10371782申请日: 2003-02-21
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公开(公告)号: US06835515B2公开(公告)日: 2004-12-28
- 发明人: Yuhua Tong , John F. Yanus , William W. Limburg , Timothy J. Fuller , Dale S. Renfer , Markus R. Silvestri
- 申请人: Yuhua Tong , John F. Yanus , William W. Limburg , Timothy J. Fuller , Dale S. Renfer , Markus R. Silvestri
- 主分类号: G03G5147
- IPC分类号: G03G5147
摘要:
A composition is provided for coating a photoreceptor having a charge generating layer and a charge transport layer. The composition includes a hole transport material, a cross-linkable film forming binder having at least one functional group that is reactive with isocyanate, a blocked isocyanate cross-linking agent and a solvent having a boiling point equal to or below the deblocking temperature. The blocked isocyanate cross-linking agent is the reaction product of an isocyanate and a blocking agent, wherein the blocking agent has a boiling point temperature equal to or below a selected deblocking temperature to allow the isocyanate to form cross-links. The invention also provides an electrophotographic imaging member with an overcoat layer comprising a cross-linked film forming binder, an isocyanate compound, a hole transport material, and optionally a surface energy reducing agent. Processes for making the imaging members are also provided.
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