HEATING ERASER FOR REMOVING THERMALLY CHANGEABLE INK
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United States of America Patent
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Issued Date -
Jan 5, 2017
app pub date -
Jun 23, 2016
filing date -
Jun 30, 2015
priority date (Note) -
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Abstract
The heating eraser for removing thermally changeable ink comprises a heating eraser unit that removes or changes a color by instantaneously applying heat at 50 to 65° C. as a color changing temperature range of a phase transition material selectively along a handwriting written or drawn by a writing instrument using the thermally changeable ink containing thermally changeable fine particles of 10 wt % to 70 wt % including a core portion containing the transition material including a phenol-based compound containing an aliphatic functional group having carbon atoms of 6 or more and a shell layer covering the core portion and made of a polymer resin on a substrate.
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