Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 16, 2000
Issued Date -
N/A
app pub date -
Jan 27, 1999
filing date -
Sep 21, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A reversible thermosensitive coloring composition is provided, which contains (a) an electron-donating coloring compound; and (b) an electron-accepting compound, which is an aromatic carboxylic acid compound comprising at least one hydrocarbon group, which induces color formation in the electron-donating coloring compound. The reversible thermosensitive coloring composition reversibly assumes a color-developed state or a decolorized state, in response to at least one of (1) the temperature thereof when heated and (2) the cooling rate of the reversible thermosensitive coloring composition when cooled after the heating thereof. A reversible thermosensitive recording medium using the coloring composition is also provided.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully