Water-soluble polymers and their use as flushing liquid additives for drilling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 7, 1988
Issued Date -
N/A
app pub date -
Jul 14, 1986
filing date -
Feb 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Water-soluble polymers consisting of from 40 to 80 mole percent of residues corresponding to the following formula (I) ##STR1## in which X.sup..sym. is a cation or H.sup..sym., from 10 to 30 mole percent of residues corresponding to the following formula (II) ##STR2## from 0 to 30 mole percent of residues corresponding to the following formula (III) ##STR3## and from 0 to 10 mole percent of residues corresponding to the following formula (IV) ##STR4## residues I to IV being statistically distributed in the polymer and the sum of the mole % of I-IV always having to amount to 100.
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