Plate-like hematite particles, a pigment comprising the same and

Details Plate-like hematite particles, a pigment comprising the same and Plate-like hematite particles, a pigment comprising the same and

1990-11-09

1992-07-28

Rosenberg, Peter D.

Compositions: coating or plastic

Materials or ingredients

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

106459, C09C 122

Patent

active

051338050

ABSTRACT:
Disclosed herein are plate-like hematite particles having an average particle diameter of 0.5 to 5.0 .mu.m, a lamellar thickness of 50 to 500.ANG. and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1, an iron oxide pigment showing a golden color and comprising the plate-like hematite particles, and a process for producing the plate-like hematite particles.

REFERENCES:
patent: 4289746 (1981-09-01), Hayakawa
patent: 4676838 (1987-06-01), Franz
patent: 4698100 (1987-10-01), Burow
patent: 4840677 (1989-06-01), Ostertag
patent: 4946641 (1990-08-01), Skinner
patent: 5032180 (1991-07-01), Krockert

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