C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
6/210, 261/63
C09C 1/24 (2006.01) C04B 14/30 (2006.01)
Patent
CA 1331423
HEAT-STABLE IRON OXIDE PIGMENTS OF .gamma.-Fe2O3 STRUCTURE, A PROCESS FOR THEIR PRODUCTION AND THEIR USE ABSTRACT OF THE DISCLOSURE A pigment useful for coloring building materials such as bricks is a heat-stable isometric iron oxide brown pigment of .gamma.-Fe2O3 structure which has a silicon content, expressed as SiO2, of 0.1 to 12% and an Al content, expressed as Al2O3, of 0.02 to 5%.
602731
Brunn Horst
Buxbaum Gunter
Krockert Bernd
Westerhaus Axel
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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