Patent · US Active

Modified black spinel pigments for glass and ceramic enamel applications

US11174170B2 · kind B2 · utility

1Cited by

20References

18Claims

0Family size

Assignee

Ferro Corporation · US

Inventors

George E. Sakoske · Washington, US
John J. Maloney · South Burlington, US
Cody J. Gleason · Solon, US
Srinivasan Sridharan · Strongsville, US

Key dates

Filing date	Jan 23, 2017
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Dec 20, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C1/34
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Modified copper chromite spinel pigments exhibit lower coefficients of thermal expansion than unmodified structures. Three methods exist to modify the pigments: (1) the incorporation of secondary modifiers into the pigment core composition, (2) control of the pigment firing profile, including both the temperature and the soak time, and (3) control of the pigment core composition.

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