Cellulose interpolymers and methods of oxidation
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United States of America Patent
Stats
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Aug 26, 2014
Grant Date -
Apr 28, 2011
app pub date -
Dec 22, 2010
filing date -
Nov 28, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
This invention provides cellulose ester interpolymers, and methods of oxidizing cellulose interpolymers and cellulose ester interpolymers. The invention also provides routes to access carboxylated cellulose ester derivatives with high acid numbers wherein the carboxyl group is attached directly to the cellulose backbone by a carbon-carbon bond. Through functionalization of an intermediate aldehyde, the corresponding cationic or zwitterionic cellulose ester derivatives can also be accessed. The interpolymers of the present invention have a number of end-use applications, for example, as binder resins in various types of coating compositions and as drug delivery agents.
First Claim
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Family
International Classification(s)
- 2010 Application Filing Year
- A61K Class
- 10962 Applications Filed
- 7633 Patents Issued To-Date
- 69.64 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- A61K Class
- 21.20 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 26, 2026 |
