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US 8,722,773 B2Granted
Polymeric composites
AssigneeWeyerhaeuser NR Company
InventorsRobert T. Hamilton, Harshadkumar M. Shah, Jeffrey Jacob Cernohous, Neil R. Granlund, David E. Fish
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Abstract
A composition comprising 65 to 90 weight percent kraft chemical wood pulp fibers and a thermoplastic polymer and a method of making the composition.
Claims11
A composition comprising 65 to 90 weight percent kraft bleached chemical wood pulp fibers and a thermoplastic polymer, wherein the composition is in pellet form.
A method of making a composition comprising
- providing kraft bleached chemical wood pulp fibers in the form of a particle to a thermo kinetic mixer,
- providing a thermoplastic polymer to the thermo kinetic mixer,
- wherein for every 100 weight percent of material provide to the mixer the pulp fibers are 65 to 90 weight percent of the material,
- mixing the fiber particles and the polymer in the mixer to form a fiber/polymer blend in which the fibers are dispersed within the polymer,
- thereafter forming the fiber/polymer blend into pellets.
2 more elements
A method of making a composition comprising
- providing kraft bleached chemical wood pulp fibers in the form of particles to a first mixing device having at least two intermeshing rotors,
- providing a thermoplastic polymer to the first mixing device,
- wherein for every 100 weight percent of material provide to the mixer the pulp fibers are 65 to 90 weight percent of the material,
- mixing the fiber and the polymer in the first mixing device to form a fiber/polymer blend in which the fibers are dispersed within the polymer,
- thereafter forming the fiber/polymer blend into pellets.
2 more elements
Dependencies are inferred from the claim text.