Electrophotographic elements containing 4H-thiopyran-1,1-dioxide derivatives as electron-transport agents
US5034293A · kind A · utility
9Cited by
2References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 22, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Dec 22, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D335/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New electrophotographic elements contain electron-transport agents comprising certain new chemical compounds, which are derivatives of 4H-thiopyran-1,1-dioxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.