Patent · US Expired

Process for the preparation of yellow iron hydroxide pigment

US4142915A · kind A · utility

1Cited by
4References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 1, 1977
Grant dateMar 6, 1979
Priority date—
Expiry dateNov 1, 1997

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01P2002/30
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

This invention describes a process for preparing a yellow iron hydroxide pigment from inorganic ferrous salts and aromatic nitro compounds.

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