US 12,246,966 B2
Low porosity, functionalized, carbon micro-powders
Allen D. Clauss, Madison, WI (US)
Assigned to CTI Consulting, LLC, Madison, WI (US)
Appl. No. 17/636,693
Filed by CTI Consulting, LLC, Madison, WI (US)
PCT Filed Aug. 19, 2020, PCT No. PCT/US2020/046933
§ 371(c)(1), (2) Date Feb. 18, 2022,
PCT Pub. No. WO2021/034900, PCT Pub. Date Feb. 25, 2021.
Claims priority of provisional application 62/889,261, filed on Aug. 20, 2019.
Prior Publication US 2022/0324711 A1, Oct. 13, 2022
Int. Cl. C01B 32/05 (2017.01); C08K 3/04 (2006.01)
CPC C01B 32/05 (2017.08) [C08K 3/04 (2013.01); C01P 2002/70 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A polymer composite comprising a carbon micro-powder characterized in having three or more of the following properties:
a) a carbon content of from 65 to 95% and an oxygen content of 35 to 5% on a weight basis;
b) a specific surface area of less than 500 m2/g;
c) percent crystallinity of 5% to 75%;
d) the particles have a platelet morphology with aspect ratios greater than 5:1;
e) the particles have significant curvature such that they are not planar; and
f) the particles have a smooth, non-porous appearance at 1,000× magnification by SEM
and a thermosetting or thermoplastic polymer, wherein the bulk thermal conductivity of the composite is greater than 0.27 W/m-K, and the electrical resistivity of the composite is greater than 1.0E10 Ohm-cm.