REVERSIBLY THERMOCHROMIC COMPOSITION
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United States of America Patent
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Issued Date -
Oct 2, 2014
app pub date -
Oct 15, 2012
filing date -
Oct 25, 2011
priority date (Note) -
Abandoned
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Abstract
[Object] To provide a reversibly thermochromic composition free from accidental discoloration by heat conducting from the opposite side writing surface or by self-heating due to quick writing; and also to provide a solid writing material and a writing ink composition comprising that composition.
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