α-alumina flakes

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United States of America Patent

PATENT NO 11891542
APP PUB NO 20220251403A1
SERIAL NO

17725725

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Abstract

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Alpha-Alumina flakes having a particle thickness of 130-400 nm, a D50-value of 15-30 μm, a D90-value of 30-45 μm and a D10-value of <9.5 μm. Use of the alumina flakes in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations. Also, use of the alumina flakes as a substrate for effect pigments and in organic dyes.

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Patent Owner(s)

Patent OwnerAddress
MERCK PATENT GMBHDARMSTADT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuda, Noriyuki Chiba, JP 34 398
Nitta, Katsuhisa Iwaki, JP 24 354
Pfaff, Gerhard Muenster, DE 74 1261
Schoen, Sabine Hertin, DE 119 1242
Suzuki, Ryuta Iwaki, JP 53 361

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