Derivatives of 4H-thiopyran-1,1-dioxides
US4968813A · kind A · utility
58Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1989 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0637
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Certain new chemical compounds are derivatives of 4H-thiopyran-1,1-dioxides, and are useful as electron-transport agents in electrophotographic elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.