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Methods for identity verification using transparent luminescent polymers 发明授权

2023-08-28 4060 1274K 0

专利信息

申请日期 2025-06-27 申请号 US10921436
公开(公告)号 US7279234B2 公开(公告)日 2007-10-09
公开国别 US 申请人省市代码 全国
申请人 David M Dean
简介 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.


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