Method and system for recovering pulp fibers from used absorbent articles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 13, 2023
Grant Date -
Nov 5, 2020
app pub date -
Jul 26, 2018
filing date -
Nov 1, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a method that, when pulp fibers are recovered from used absorbent articles that have been put into collection bags, makes it possible to safely and sanitarily crush the used absorbent articles while suppressing costs. A method for recovering pulp fibers from used absorbent articles, the method comprising: a crushing step (S12) in which collection bags (A) in which used absorbent articles have been sealed are put into a container (65), the collection bags in the container are transferred to a crushing device (12) that communicates with the container, and, bag by bag, the crushing device crushes the used absorbent articles in the collections bags in a deactivating aqueous solution; and a separation step (S13) in which the pulp fibers, a highly water-absorbent polymer, and the deactivating aqueous solution are separated from the crushed product and deactivating aqueous solution obtained in the crushing step.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2018 Application Filing Year
- D21B Class
- 59 Applications Filed
- 33 Patents Issued To-Date
- 55.94 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- D21B Class
- 77.42 % this patent is cited more than
- 2 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Dec 13, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 13, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 13, 2034 |
