Back to results
US 7,144,624 B2Granted
Dendritic fiber material
AssigneeEnergy Science Laboratories, Inc.
InventorsTimothy R. Knowles, Christopher L. Seaman
Life of this patent
Estimating the term…
Abstract
A thermal interface includes nanofibrils. The nanofibrils may be attached to a flat base or membrane, or may be attached to the tip portions of larger diameter fibers. The nanofibrils have a diameter of less than about 1 micron, and may advantageously be formed from single walled and/or multi-walled nanotubes.
Claims13
A composite material comprising:
- a base,
- a first fiber in contact with the base and having a cross sectional diameter of
- greater than about 3 microns,
- and a plurality of elongated second fibers having a cross sectional diameter of less than approximately 1 micron;
- wherein the plurality of second fibers is predominately in contact with the distal end of the first fiber.
2 more elements
A composite material comprising:
- a base,
- a first plurality of fibers having first and second ends, said second ends being in contact with said base, and said fibers being predominantly aligned and forming a sheet that extends in a direction substantially parallel to the base fibers;
- wherein substantially all of said plurality of fibers have a diameter of about 15 microns or less, and a carbon fiber material comprising a collection of carbon fibers located predominantly proximate to said first end of at least some of said first plurality of fibers;
- said collection of carbon fibers on each end having an overall diameter substantially greater than a diameter of the first end to which they are attached;
- said carbon fiber material forming a pliable contact surface being substantially parallel with said first end;
- said pliable contact surface having a higher degree of mechanical resilience than the plurality of fibers in response to application of an external load.
3 more elements
A composite material comprising:
- a plurality of fibers having first and second ends;
- said fibers being predominantly aligned and having a diameter of more than about 3 microns, and a carbon fiber material located predominantly proximate to said first end and comprising an unaligned discontinuous powder of nanofibrils with diameters of about 50–300 nanometers and lengths of about 20 to 80 microns;
- said carbon fiber material forming a pliable contact surface being substantially parallel with said first end.
Dependencies are inferred from the claim text.