Graphite article
AssigneeNeoGraf Solutions, LLC
InventorsDavid G. Rich, Martin David Smalc
Life of this patent
Estimating the term…
Abstract
A graphite article which can be compressed by more three (3%) percent at a contact pressure of 100 KPa or less without damaging the graphite article reducing the thermal impedance exhibited by the article. Also a graphite article comprising graphitized polymer having a thickness of at least 75 microns. Preferably the graphite has a density of less than 1.50 g/cc and a compressibility of more than 3% at a contact pressure of 100 KPa. Also the article has a generally sheet like shape. These articles may be used in a thermal management system to dissipate heat from a heat source.
Claims20
A graphite article comprising a single sheet of a graphitized polymer having a thickness of more than 150 microns, the graphite article having a density of less than 1.00 g/cc, a compressibility of more than 10% and up to 75% at a contact pressure of 100 kPa, and a thermal impedance of no more than 0.25 cm2° C./W at a contact pressure of at least 700 kPa.
A compressible graphite article comprising a graphitized polymer sheet having a thickness of at least 200 microns, a density of less than 1.00 g/cc, and a thermal impedance of no more than 0.25 cm2° C./W at a contact pressure of at least 700 kPa.
Dependencies are inferred from the claim text.