Plastic films having high Vicat softening temperature in layered structures

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United States of America

PATENT NO 12195602
APP PUB NO 20210403661A1
SERIAL NO

17291660

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Abstract

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The present invention relates to layer composites comprising at least one opaque layer a) and at least one transparent layer b), wherein the Vicat softening temperature B/120 determined according to ISO 306:2004 (method B120 50N; 120° C.) of layer a) is ≥156° C., preferably from ≥156° C. to ≤250° C., particularly preferably from ≥156° C. to ≤230° C., and wherein the Vicat softening temperature B/120 determined according to ISO 306:2004 (method B120 50N; 120° C./h), of layer a) is higher than that of layer b), a method for producing such layer composites and security documents, preferably identification documents, comprising such a layer structure.

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Patent Owner(s)

Patent OwnerAddress
COVESTRO DEUTSCHLAND AGLEVERKUSEN GERMANY LEVERKUSEN NORTH RHINE-WESTPHALIA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Janke, Stefan Brüggen, DE 18 11
Koehler, Christoph Duisburg, DE 7 0
Planken, Kira Goch, DE 13 6
Pudleiner, Heinz Krefeld, DE 106 717
Tziovaras, Georgios Neuss, DE 35 109

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