Multicolor chromogenic system having improved image quality
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 27, 1999
Grant Date -
N/A
app pub date -
Aug 19, 1997
filing date -
Aug 19, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A heat-sensitive document capable of providing multiple colors comprising a support having at least one surface bearing a first coating comprising a substantially colorless, chromogenic composition which is capable of producing a first color, a second coating covering a portion of the first coating, the second coating being an opaque coating, comprising an opacifying agent and a hydrophobic, polymeric binding agent, and a localized third coating covering at least a portion of said second coating comprising a substantially colorless, heat-activatable chromogenic composition capable of producing a second color, preferably under the application of heat. The opaque coating is 'dual-functional', since it both enhances multicolor image quality and acts as a primer for adhering the localized chromogenic coating composition.
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