Stable compositions of nano-particulate unmodified pigments and insoluble colorants in aqueous microemulsions, and principle of stability and methods of formation thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 15, 2000
Grant Date -
N/A
app pub date -
Oct 30, 1997
filing date -
Oct 30, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
If the particle size of pigments in ink-jet inks is reduced below 500 nm, then the ink compositions achieved extraordinary stability; that is, there is no visible sediment formed after three weeks at ambient temperature and there is no sediment formed after heating to 70.degree. C. for 10 min followed by cooling to 0.degree. C. for 10 min. No dispersant is necessary, and the pigment particles having such a defined size may be incorporated into microemulsions, using a suitable oil (water-immiscible organic compound), at least one amphiphile, and water.
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