Modified cellulose from chemical kraft fiber and methods of making and using the same
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United States of America Patent
Stats
-
Dec 6, 2016
Grant Date -
Aug 8, 2013
app pub date -
Mar 15, 2013
filing date -
May 28, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A modified kraft pulp fiber with unique properties is provided. The modified fiber can be a modified bleached kraft fiber that is almost indistinguishable from its conventional counterpart, except that it has a low degree of polymerization (DP). Methods for making the modified fiber and products made from it are also provided. The method can be a one step acidic, iron catalyzed peroxide treatment process that can be incorporated into a single stage of a multi-stage bleaching process. The products can be chemical cellulose feedstocks, microcrystalline cellulose feedstocks, fluff pulps and products made from them.
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Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- A61L Class
- 23.35 % this patent is cited more than
- 9 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 | Jun 6, 2028 |
