Product to promote fluid flow
AssigneeInternational Paper Company
InventorsDavid E Fish, Hugh West, Linda A Beltz
Life of this patent
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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 mm2 and equal to or greater than 8 mm2, 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.
Claims14
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 mm2 and equal to or greater than 8 mm2, 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/m2to 1000 g/m2.
Dependencies are inferred from the claim text.