Patent · US Expired

Antioxidant composition

US3956289A · kind A · utility

8Cited by
5References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 17, 1974
Grant dateMay 11, 1976
Priority date—
Expiry dateJul 17, 1994

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K15/30
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Antioxidant compositions are prepared by oxidizing a substituted phenothiazine by means of an oxidizing agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.