Pigmentary material

Details Pigmentary material Pigmentary material

1995-07-06

1998-05-19

Bonner, Melissa

Compositions: coating or plastic

Materials or ingredients

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

106459, C01G 4900, C09C 124, C09C 122, C09C 100

Patent

active

057530270

ABSTRACT:
A transparent hematite, useful as a pigmentary material, is in the form of particles consisting essentially in their lattice of oxygen, iron and another metal M, the other metal being selected from the group consisting of cobalt, nickel, manganese, zirconium, vanadium, lithium and copper, and being present in an atomic ratio to the iron of 0.01-0.5:1, and the width of the particles, as measured by transmission electron microscopy, being less than 0.03 micron.

REFERENCES:
patent: 2696426 (1954-12-01), Marcot
patent: 3615810 (1971-10-01), Holznagel et al.
patent: 3869298 (1975-03-01), Suzuki et al.
patent: 4289745 (1981-09-01), Patil
patent: 4404254 (1983-09-01), Franz et al.
patent: 4826537 (1989-05-01), Ostertag
patent: 5043016 (1991-08-01), Speer et al.
patent: 5269841 (1993-12-01), Kuske et al.

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