Patent · US Expired

Pyridylbenzimidazole compositions for absorbing ultraviolet light

US5326502A · kind A · utility

1Cited by
1References
36Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 2, 1990
Grant dateJul 5, 1994
Priority date
Expiry dateAug 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.