G - Physics – 09 – F
Patent
G - Physics
09
F
G09F 3/02 (2006.01) C08K 5/09 (2006.01) C08L 23/04 (2006.01) C08L 43/00 (2006.01) C09K 11/06 (2006.01)
Patent
CA 2540041
Disclosed are methods of using a transparent, luminescent polymer for transparent marking and/or labeling for identity verification purposes. Also disclosed are sheets, films, markers, labels and taggants comprising transparent, luminescent polymers. Also disclosed are articles labeled with a transparent, luminescent polymer. This invention particularly relates to use of transparent, luminescent polymer compositions comprising ethylene (meth)acrylic acid copolymers and rare earth ions and transparent, luminescent polymer compositions comprising methyl (meth)acrylate/(meth)acrylic acid copolymers, fatty acids and rare earth ions for these purposes.
L'invention porte sur des procédés d'utilisation d'un polymère transparent et luminescent servant au marquage et/ou à l'étiquetage à des fins de vérification d'identité. L'invention porte également sur des feuilles, marqueurs, étiquettes et traceurs de polymères transparents et luminescents, et en particulier: sur des compositions de polymères transparents et luminescents consistant en copolymères d'éthylène/acide (meth)acrylique et en ions de terres rares; et sur des compositions de polymères transparents et luminescents consistant en copolymères d'éthylène/acide (meth)acrylique, en acides gras, et en ions de terres rares, à cet usage.
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
LandOfFree
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