Erasably, markable articles and methods of making such articles
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United States of America Patent
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Aug 6, 1991
Grant Date -
N/A
app pub date -
Jun 2, 1989
filing date -
Jun 2, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An erasably markable article formed of a coated substrate that is markable with dry wipe inks without causing permanent discernible distortion of the substrate. The surface after marking is substantially fully erasable. The surface is provided by a smooth coating of cured lacquer preferably a radiation cured lacquer, for example, electron beam radiation cured urethane acrylate. The substrate may be flexible, for example, a biaxially oriented polypropylene multilayer film having a closed cell foam-like core wherein the substrate exhibits electrostatic cling properties. The substrate may also be adhesive coated paper or may be relatively inflexible pressboard.
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