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US 11,306,195 B2Granted
Discontinuous-fiber composites and methods of making the same
AssigneeSouth Dakota Board of Regents
InventorsAndrew T. Brady, Bert D. Mannhalter, David R. Salem
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Abstract
The invention relates to compositions comprising composite materials comprised of discontinuous fibers and one or more polymers and/or oligomers. The invention relates to methods of making the same. The composite materials can be in the form of compositions, composite sheets, laminates, pellets, and/or shaped composite products.
Claims15
A method for preparing a polymer composite composition comprising:
- mixing discontinuous fibers and one or more polymers and/or oligomers to form a mixture in an extruder;
- wherein said polymer and/or oligomer is a thermoplastic or a thermoset;
- and wherein said discontinuous fibers are aramid fibers, carbon fibers, ceramic fibers, glass fibers, polymeric fibers, or mineral-based fibers, or a combination thereof;
- rolling the mixture to form the polymer composite composition into a sheet, wherein the rolling orients the discontinuous fibers in one direction;
- and
- wherein one or more stages of the method minimize the fiber length attrition.
3 more elements
Dependencies are inferred from the claim text.