Process for preparing derivatized polysaccharides
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United States of America Patent
Stats
-
Nov 14, 2017
Grant Date -
Jun 4, 2015
app pub date -
Jun 5, 2013
filing date -
Jul 5, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a process for preparing a polysaccharide derivative, comprising the steps of: (a) contacting at least one polysaccharide with at least one polysaccharide swelling agent at a temperature of at most 70° C.; and (b) subsequently, contacting the product of step (a) with at least one aromatic isocyanate; thereby preparing a polysaccharide derivative.
First Claim
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International Classification(s)
- 2013 Application Filing Year
- C08G Class
- 2223 Applications Filed
- 2044 Patents Issued To-Date
- 91.95 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- C08G Class
- 33.97 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 14, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 14, 2029 |
