Compounds having barbituric acid or thiobarbituric acid residue, photoconductive compositions and electrophotographic light sensitive materials containing the compounds as charge generating materials
US4476208A · kind A · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1982 |
| Grant date | Oct 9, 1984 |
| Priority date | — |
| Expiry date | Dec 23, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel compounds are disclosed which are composed of a barbituric acid residue or a thiobarbituric acid residue and a pyrylium salt residue, thiopyrylium salt residue, benzopyrylium salt residue, or a benzothiopyrylium salt residue. The compounds are suitable as charge generating materials for an electrophotographic light-sensitive material of the type containing a charge generating material and a charge transporting material in one layer or two separate layers. The use of the compounds improves the durability and light-sensitivity of the light-sensitive material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.