UV-Vis radiation curable security inks for producing dichroic security features

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United States of America Patent

PATENT NO 12054619
APP PUB NO 20230407116A1
SERIAL NO

18036341

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Abstract

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The present invention provides a UV-Vis radiation curable security ink for producing a security feature for securing value documents, wherein said security feature exhibits a blue color upon viewing in transmitted light and a metallic yellow color upon viewing in incident light. The UV-Vis radiation curable security ink comprises a cationically curable or a hybrid curable ink vehicle, and silver nanoplatelets bearing a surface stabilizing agent of general formula (I)

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Patent Owner(s)

Patent OwnerAddress
SICPA HOLDING SAAVENUE DE FLORISSANT 41 PRILLY 1008

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Demartin, Maeder Marlyse La Sarraz, CH 8 70
Grigorenko, Nikolay Möhlin, CH 3 1
Oswald, Andre Rheinfelden, DE 10 4
Pittet, Hervé Châtel-st-Denis, CH 6 2
Veya, Patrick Aclens, CH 24 119

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