IR dyes and laser markable articles comprising such IR dyes

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United States of America Patent

PATENT NO 9821586
SERIAL NO

15304307

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Abstract

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Infrared dyes having an infrared absorption maximum above 1130 nm with minor colouration in the visual spectrum. The infrared dyes are especially useful for producing multicolour laser marked security documents having reduced background coloration and enhanced colour gamut.

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Patent Owner(s)

  • AGFA-GEVAERT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Steenackers, Marin Mortsel, BE 18 18

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