Pigment compositions

Details Pigment compositions Pigment compositions

1988-12-19

1990-02-06

Morris, Theodore

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

423594, 423633, C09C 122

Patent

active

048986194

ABSTRACT:
A pigment which comprises crystallites of iron oxide having an average particle size of less than 100 nanometers doped with from 10% to 80% by weight of aluminium as Al.sup.3+ based on the weight of iron, having the general formula (Al.sub.x Fe.sub.2-x)O.sub.3, where x=0.34 to 1.24 and having an orange color with the following color measurements:

REFERENCES:
patent: 4202775 (1987-10-01), Ostertag
patent: 4373963 (1983-02-01), Venishi et al.
patent: 4780140 (1988-10-01), Franz et al.
patent: 4826537 (1989-05-01), Ostertag

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