Boron-containing iron oxide pigments and a process for their pre

Details Boron-containing iron oxide pigments and a process for their pre Boron-containing iron oxide pigments and a process for their pre

1992-10-19

1993-12-14

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

106456, C09C 122

Patent

active

052698432

ABSTRACT:
Boron-containing iron-oxide pigments as disclosed which are prepared by a nitrobenzene reduction process. The boron is present in the pigments in a homogeneously doped form in amounts of 0.02 to 0.13% by weight, based on iron oxide. Preparation of the pigments is also described.

REFERENCES:
patent: 4358431 (1982-11-01), Brunn et al.
patent: 4911760 (1990-03-01), Burou et al.

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