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US 6,632,863 B2Granted
Cellulose/polyolefin composite pellet
AssigneeCrane Plastics Company LLC
InventorsHerbert L. Hutchison, Jeffrey R. Brandt
Life of this patent
Estimating the term…
Abstract
A cellulose/polyolefin pellet comprising polyolefin material and cellulosic material. The pellet may be concentrated such that it contains less than about 20% by weight of the polyolefin material and at least about 55% by weight of the cellulosic material. The pellet may be shipped to a remote manufacturing location where it may be blended with additional polyolefin material to make a synthetic wood component.
Claims14
A method of manufacturing a molded product:
- manufacturing a pellet, said pellet comprising by weight:
- about 55% to about 90% of at least one cellulosic material;
- about 10% to about 40% of at least one polyolefin material;
- and
- 0% to about 35% of at least one additive;
- blending said pellet with an additional amount of said at least one polyolefin material to form a final composition, said final composition comprising by weight:
- about 35% to about 70% of said at least one cellulosic material;
- about 20% to about 45% of said at least one polyolefin material;
- and
- 0% to about 45% of said at least one additive;
- and
- molding said final composition to form said molded product.
9 more elements
A method of manufacturing a synthetic wood composition:
- manufacturing a pellet, said pellet comprising by weight:
- about 55% to about 85% of at least one cellulosic material;
- about 10% to about 20% of at least one polyolefin material;
- 0% to about 20% of at least one inorganic filler;
- and
- 0% to about 10% of at least one lubricant;
- and
- blending said pellet with an additional amount of said at least one polyolefin material to form said synthetic wood composition, said synthetic wood composition comprising by weight:
- about 35% to about 70% of said at least one cellulosic material;
- about 20% to about 45% of said at least one polyolefin material;
- 0% to about 20% of said at least one inorganic filler;
- and
- 0% to about 10% of said at least one lubricant.
10 more elements
Dependencies are inferred from the claim text.