SECURITY ELEMENTS AND METHOD FOR THEIR MANUFACTURE

World Intellectual Property Organization Patent

APP PUB NO WO-2014041121-A1
SERIAL NO

PCTEP2013069006

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Abstract

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The present invention relates to complex security elements based on recording materials for optical elements with refractive index modulation, in particular, holograms, which are subsequently coated with specific metallic nano-shaped metal particles, a method for their manufacture, in particular on a paper or on a plastic substrate and a security product obtainable using the security element. A further aspect of the invention is the use of such a security element for the prevention of counterfeit or reproduction of a document of value.

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Patent Owner(s)

Patent OwnerAddress
BASF SEDE67056 LUDWIGSHAFEN

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Inventor(s)

Inventor Name Address
GRIGORENKO NIKOLAY A BASEL
RICHERT MICHELLE ILLZACH
KNOCKE FRANK EBERSBERG
FLEURY ROLAND ZWINGEN

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