Pyridylbenzimidazole compositions for absorbing ultraviolet light
US5326502A · kind A · utility
1Cited by
1References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1990 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Aug 2, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F15/045
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Metal complexes of pyridylbenzimidazoles are described which can be used as ultraviolet absorbers. The pyridylbenzimidazole compounds can be substituted or unsubstituted. The ultraviolet absorbers can be used to protect a carrier or to protect objects being shielded by a carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.