Patent · US Expired

Production of alpha alumina

US5641469A · kind A · utility

123Cited by
6References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 28, 1991
Grant dateJun 24, 1997
Priority date—
Expiry dateMay 28, 2011

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01P2006/10
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Dry milling an alpha alumina precursor produces direct conversion to alpha alumina at room temperature.

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