RED IRON-OXIDE PIGMENTS WITH IMPROVED COLOUR VALUES

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United States of America Patent

SERIAL NO

15510312

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Abstract

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The present invention relates to iron oxide red pigments having improved color values, a process for producing these improved iron oxide red pigments by the Penniman red process using nitrate (also referred to as nitrate process or direct red process) and an apparatus for the production thereof.

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Patent Owner(s)

Patent OwnerAddress
LANXESS DEUTSCHLAND GMBH50569 KÖLN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
CZAPLIK, WALDEMAR KREFELD, DE 7 17
KISCHKEWITZ, JURGEN RATINGEN, DE 22 269
SPIEGELHAUER, STEPHAN LANGENFELD, DE 2 3

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