Tamper-proof medium for thermal printing

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United States of America Patent

PATENT NO 11524514
APP PUB NO 20200198386A1
SERIAL NO

16622342

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Abstract

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The present invention relates to method of manufacturing a tamper-proof medium for thermal printing, wherein a liquid treatment composition comprising at least one acid is deposited on a substrate which comprises a thermochromic coating layer comprising at least one halochromic leuco dye.

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Patent Owner(s)

Patent OwnerAddress
OMYA INTERNATIONAL AGSWITZERLAND ZUG ZUG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bollstrom, Roger Zofingen, CH 4 2
Botty, Gilbert Maastricht, NL 6 43
Hunziker, Philipp Loveland, US 24 79

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