Polymers for use in drilling muds
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 16, 1991
Grant Date -
N/A
app pub date -
Apr 25, 1989
filing date -
Apr 25, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polymer for use as a deflocculant in drilling muds comprising at least one unsaturated carboxylic acid or its anhydride or salt, at least one unsaturated sulfonic acid or its salt, at least one unsaturated cationic-containing monomer, and optionally, one or more unsaturated non-ionic monomer and/or one mono or di phosphate ester of an unsaturated alcohol.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
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