Cellulose powder and processes for its production
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United States of America Patent
Stats
-
Oct 20, 2015
Grant Date -
Jan 13, 2011
app pub date -
Sep 12, 2008
filing date -
Sep 21, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a process for producing spherical, non-fibrillar cellulose particles with a particle size in the range of from about 1 μm to about 400 μm from a solution of cellulose in which the solution is cooled down to below its solidification temperature wherein it is flowing freely, the solvent is washed out, the solidified cellulose solution is disintegrated to form cellulose powder comprising particles, and the disintegrated and washed out particles are dried. The invention also relates to the cellulose powder and particles made in accordance with the process of the invention.
First Claim
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International Classification(s)
- 2008 Application Filing Year
- C08J Class
- 604 Applications Filed
- 342 Patents Issued To-Date
- 56.63 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- C08J Class
- 19.50 % 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 | Apr 20, 2027 |
