Effect pigments based on artificially produced substrates with a narrow size distribution

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11299636
APP PUB NO 20100297045A1
SERIAL NO

12864146

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Abstract

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The invention relates to effect pigments comprising artificial platelet-shaped substrates which have at least one optically active coating, where the effect pigments have a volume-averaged cumulative undersize distribution curve with the characteristic numbers D10, D50 and D90, said cumulative undersize distribution curve having a span ΔD of 0.7-1.4, and the span ΔD being calculated in accordance with formula (I):

description='In-line Formulae' end='lead'ΔD=(D90−D10)/D50  (I),description='In-line Formulae' end='tail'

and the average thickness of the artificial platelet-shaped substrates being 500 nm to 2000 nm.

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Patent Owner(s)

Patent OwnerAddress
ECKART GMBH91235 HARTENSTEIN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaupp, Günter Neuhaus, DE 31 404
Schmidt, Ulrich Hersbruck, DE 54 822
Schneider, Ralph Lauf, DE 71 1718
Schumacher, Dirk Pegnitz, DE 21 341

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