Meterable fiberous material

Patent metadata

Field	Value
Publication number	US-2017191220-A1
Application number	US-201715462506-A
Country	US
Kind code	A1
Filing date	Mar 17, 2017
Priority date	Jun 8, 2009
Publication date	Jul 6, 2017
Grant date	—

Abstract

A particle or particles of cellulosic wood pulp fibers having a top and bottom face and a hexagonal perimeter, and methods of using it.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1 . A cellulosic wood pulp fiber particle having two opposed faces and a hexagonal perimeter, a major axis length of 4 to 8 mm, a width of 2 to 5 mm and a thickness of 0.1 mm to 4 mm.

2 . The particle of claim 1 , wherein the wood pulp fiber is in the form of a wood pulp sheet, a paperboard sheet or a paper sheet.

3 . The particle of claim 1 , wherein the hexagonal perimeter forms an equilateral hexagon.

4 . The particle of claim 1 , wherein the sides of the hexagon formed by the hexagonal perimeter have different lengths.

5 . The particle of claim 1 , wherein two opposed sides of the hexagon formed by the hexagonal perimeter have the same length, and said two opposed sides are longer than the other sides of the hexagon.

6 . The particle of claim 1 , wherein the particle has a basis weight of 12 to 2000 g/mm 2 .

7 . The particle of claim 1 , wherein each of the two opposed faces have an area of 12 to 30 mm 2 .

8 . The particle of claim 1 , wherein the length of the hexagonal perimeter is 12 mm to 32 mm.

9 . A method of combining wood pulp fibers with a material, the method comprising:
providing wood pulp fiber particles having two opposed faces and a hexagonal perimeter, a major axis length of 4 to 8 mm, a width of 2 to 5 mm and a thickness of 0.1 mm to 4 mm; metering the particles through a feeder to a mixer; forming fibers, fiber bundles, or a mixture thereof from the particles before or during the mixing; and mixing the fibers, fiber bundles, or mixture thereof with a material to form a blend of the fibers, fiber bundles or mixture thereof and the material.

10 . The method of claim 9 , wherein the material is a thermoplastic resin.

11 . The method of claim 9 , wherein the material is cement.

12 . The method of claim 9 , wherein the material is a thermoset resin.

13 . A method of combining wood pulp fibers with a material, the method comprising:
providing wood pulp fiber particles having two opposed faces and a hexagonal perimeter, a major axis length of 4 to 8 mm, a width of 2 to 5 mm and a thickness of 0.1 mm to 4 mm; and metering the particles through a feeder to a mixer.

14 . The method of claim 13 , wherein the material is a dry constituent having a higher bulk density than the fiber, to produce a blend with a bulk density lower than the bulk density of the dry constituent.

15 . The method of claim 13 , wherein the material is a dry constituent having a lower bulk density than the fiber, to produce a blend with a bulk density higher than the bulk density of the dry constituent.

16 . The method of claim 13 , wherein the material is a dry constituent having a lower absorbent capacity than the fiber, to produce a blend with a higher absorbent capacity than the dry constituent.

17 . The method of claim 13 , wherein the material is a dry constituent having a higher absorbent capacity than the fiber, to produce a blend with a lower absorbent capacity than the dry constituent.

18 . The method of claim 13 , wherein the material is a dry constituent having a lower absorbency rate than the fiber, to produce a blend with a higher absorbent rate than the dry constituent.

Assignees

• Int Paper Co

Inventors

• Mann Christopher A
• Marsh David G
• Hamilton Robert T
• Miller Charles E
• Shah Harshadkumar

Classifications

• C08L2205/16

  Fibres; Fibrils · CPC title

• C08L97/02 Primary

  Lignocellulosic material, e.g. wood, straw or bagasse {(manufacture of articles made from lignocellulosic material by dry processes B27N)} · CPC title

• C04B16/06

  fibrous · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• D21H11/00 Primary

  Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only · CPC title