Pure-coloured, readily dispersible iron oxide red pigments...

Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...

Reexamination Certificate

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C106S419000, C106S424000, C106S459000, C106S712000, C162S162000, C423S632000, C424S464000, C426S250000, C427S215000, C427S218000, C427S289000, C427S372200, C427S427000, C428S403000, C428S404000, C524S431000

Reexamination Certificate

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11128590

ABSTRACT:
The present invention relates to pure-coloured, readily dispersible iron oxide red pigments having high grinding stability, to a process for preparing them, and to their use.

REFERENCES:
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patent: 2003/0171478 (2003-09-01), Resendes
patent: 2255464 (1973-05-01), None
patent: 0419964 (1991-04-01), None
patent: 865297 (1959-11-01), None
patent: 51-47923 (1976-04-01), None
patent: 01/09225 (2001-02-01), None
Fuller, Carl W., “Colored Iron Oxide Pigments, Synthetic,” T.C. Patton Pigment Handbook, vol. 1, 1973, p. 333, no month.

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