IP Library Granted Patent US 9,809,928
Granted Patent B2
US 9,809,928 · App. 11/627,291 · Granted Nov 7, 2017

Product to promote fluid flow

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Quick Facts
Patent No.
US 9,809,928
App. No.
11/627,291
Granted
Nov 7, 2017
Kind
B2
Abstract

A cellulose pulp particle having the shape of a general prismatoid having two parallel bases, the pulp particle comprising pulp fibers in a wet laid pulp sheet form, one of the bases having an area that is equal to or greater than the area of the other base, the area of the larger base being equal to or less than 30 mm 2 and equal to or greater than 8 mm 2 , the height of the particle, the perpendicular distance between the bases, being equal to or greater than 0.9 mm and equal to or less than 5 mm.

Claims (14)

1. A cellulose pulp particle having the shape of a general prismatoid having two parallel bases, the pulp particle comprising hydrogen bonded cellulose pulp fibers in a wet laid pulp sheet form, one of the bases having an area that is equal to or greater than the area of the other base, the area of the larger base being equal to or less than 35 mm 2 and equal to or greater than 8 mm 2 , and the height of the particle being equal to or greater than 0.9 mm and equal to or less than 6 mm, wherein the base of the particle has a dimension greater than the height of the particle, wherein the particle does not contain bulking fibers and wherein the particle has a basis weight of from 600 g/m 2 to 1000 g/m 2 .

2. The particle of claim 1 in which the general prismatoid is a simple prismatoid.

3. The particle of claim 1 in which the general prismatoid is a cuboid.

4. The particle of claim 1 in which the general prismatoid is a square cuboid.

5. The particle of claim 1 in which the general prismatoid is a general cylinder.

6. The particle of claim 1 in which the general prismatoid is a right general cylinder.

7. The particle of claim 1 in which the general prismatoid is a right circular cylinder.

8. The particle of claim 1 in which the particle is formed from two or more plies, each of the plies comprising hydrogen bonded pulp fibers in a wet laid pulp sheet form, the adjacent plies being adhered together along a base, the height of the particle is equal to or greater than 1.5 mm and equal to or less than 6 mm and wherein each of the plies has a basis weight of from 600 g/m 2 to 1000 g/m 2 .

9. The particle of claim 8 in which the general prismatoid is a simple prismatoid.

10. The particle of claim 8 in which the general prismatoid is a cuboid.

11. The particle of claim 8 in which the general prismatoid is a square cuboid.

12. The particle of claim 8 in which the general prismatoid is a general cylinder.

13. The particle of claim 8 in which the general prismatoid is a right general cylinder.

14. The particle of claim 8 in which the general prismatoid is a right circular cylinder.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2025
From: INTERNATIONAL PAPER COMPANY
To: GCF US HOLDINGS LLC
Reel/Frame 073563/0717 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2017
From: WEYERHAEUSER NR COMPANY
To: INTERNATIONAL PAPER COMPANY
Reel/Frame 043263/0255 →