Process for production of oxidised cellulose pulp
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United States of America Patent
Stats
-
Sep 1, 2015
Grant Date -
Jan 31, 2013
app pub date -
Jan 18, 2011
filing date -
Jan 19, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a process for producing an oxidized cellulose pulp fibrillar network and a composite with lignocellulosic fibers comprising the following steps: (a) oxidizing a cellulose pulp to obtain about 0.3 to 2.5 mmol carboxylic groups per gram cellulose pulp; and about 0.1 to 5.0 mmol aldehyde groups per gram cellulose pulp; (b) homogenization of the cellulose pulp of step (a) wherein the cellulose fibers are refined to provide a cellulose pulp comprising 0-50% of fibers having an average length 0.7 mm-2.1 mm; and 50-100% of fibers having a particle size of 0.05-500 micrometer (μm); and optionally (c) combining with lignocellulosic fiber. Also step (d) drying of the cellulose pulp obtained by step (b) or step (c) may be included in the process.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2011 Application Filing Year
- D21H Class
- 239 Applications Filed
- 182 Patents Issued To-Date
- 76.16 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- D21H Class
- 15.98 % this patent is cited more than
- 10 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 | Mar 1, 2027 |
