Water base erasable ink compositions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 2, 1991
Issued Date -
N/A
app pub date -
Aug 22, 1990
filing date -
Dec 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A water base erasable ink composition which comprises: (a) water as a solvent in amounts of 50-90% by weight; (b) a coloring agent dispersed or dissolved in water in amounts of 1-30% by weight; (c) an aqueous emulsion of at least one nonvolatile or only slightly volatile compound which is liquid at room temperatures and is selected from the group consisting of aliphatic carboxylic acid esters, higher hydrocarbons and higher alcohols in dry amounts of 1-20% by weight; and (d) a water soluble resin or a water-solubilized resin which is film forming at room temperatures in amounts of 0.1-15% by weight. The water soluble resin or water-solubilized resin may be displaced by an aqueous emulsion or a hydrosol of water insoluble resins.
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