Surface enhanced pulp fibers, methods of making surface enhanced pulp fibers, products incorporating surface enhanced pulp fibers, and methods of making products incorporating surface enhanced pulp fibers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 7, 2020
Grant Date -
Nov 24, 2016
app pub date -
Aug 1, 2016
filing date -
Aug 24, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Various embodiments of the present invention relate to surface enhanced pulp fibers, various products incorporating surface enhanced pulp fibers, and methods and systems for producing surface enhanced pulp fibers. Various embodiments of surface enhanced pulp fibers have significantly increased surface areas compared to conventional refined fibers while advantageously minimizing reductions in length following refinement. The surface enhanced pulp fibers can be incorporated into a number of products that might benefit from such properties including, for example, paper products, paperboard products, fiber cement boards, fiber reinforced plastics, fluff pulps, hydrogels, cellulose acetate products, and carboxymethyl cellulose products. In some embodiments, a plurality of surface enhanced pulp fibers have a length weighted average fiber length of at least about 0.3 millimeters and an average hydrodynamic specific surface area of at least about 10 square meters per gram, wherein the number of surface enhanced pulp fibers is at least 12,000 fibers/milligram on an oven-dry basis.
First Claim
Other Claims data not available
Family
International Classification(s)
- D21B:FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMEN....
- D01B:MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMEN....
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
- D02J:FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS....
- D21D:TREATMENT OF THE MATERIALS BEFORE PASSING TO THE P....
- D21C:PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE ....
- 2016 Application Filing Year
- D21B Class
- 51 Applications Filed
- 38 Patents Issued To-Date
- 74.51 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- D21B Class
- 66.67 % this patent is cited more than
- 5 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 | Jan 7, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 7, 2032 |
