Hemp-based char or oils and polymers formed as fibers or films having enhanced properties
AssigneesThomas Jefferson University, Ecofibre USA Inc.
InventorsMark Sunderland, Jeffrey William Bruner, Lee Benjamin Williams
Life of this patent
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Abstract
A process of forming a fiber comprised of a plurality of bio-char particles, comprising: combining a portion of a polymer with a hemp derivative, said hemp derivative selected form a hemp carbon made by pyrolyzing a quantity of hemp stalk at between 1100-1500° C. to create a char; adding the char to a milling vessel and milling the char for a period of between 1 to 16 hours, and a full spectrum hemp extract, or combinations thereof, wherein the polymer and hemp derivative are extruded to form a fiber.
Claims20
A method of manufacturing a nonmetallic conductive fiber comprising:
- carbonizing a portion of hemp in a furnace, said furnace being flushed with nitrogen and then heated to at least 1100° C., wherein the at least 1100° C. temperature is held for at least 60 minutes and wherein nitrogen flow is maintained over the heating and hold times to maintain a low oxygen environment;
- removing the hemp from the furnace and cooling it to room temperature;
- milling the cooled hemp to an average particle size of less than 2 microns;
- and
- combining the milled hemp with a polymer and postprocessing the hemp and polymer into a fiber;
- wherein the fiber comprises between 0.1 and 20 weight percent of the milled hemp.
A nonmetallic conductive fiber comprising:
- a polymer and a carbonized hemp having an average particle size of less than 2 microns;
- wherein said carbonized hemp comprises between 0.1 and 20 weight percentage of said fiber, and wherein said carbonized hemp is made by being heated to at least 1100° C., wherein the at least 1100° C. temperature is held for at least 60 minutes and wherein nitrogen flow is maintained over the heating and hold times to maintain a low oxygen environment and then milled to an average particle size of less than 2 microns.
Dependencies are inferred from the claim text.