US 11,053,124 B2
Conductive grease with enhanced thermal or electrical conductivity and reduced amount of carbon particle loading
Haiping Hong, Rapid City, SD (US); Christian A. Widener, Rapid City, SD (US); and Gregory Lee Christensen, Rapid City, SD (US)
Assigned to South Dakota Board of Regents, Pierre, SD (US)
Filed by South Dakota Board of Regents, Pierre, SD (US)
Filed on Apr. 11, 2019, as Appl. No. 16/381,798.
Claims priority of provisional application 62/656,725, filed on Apr. 12, 2018.
Prior Publication US 2019/0315625 A1, Oct. 17, 2019
Int. Cl. C01B 32/174 (2017.01); C09K 5/10 (2006.01); H01B 1/24 (2006.01); B82Y 30/00 (2011.01); H01B 1/04 (2006.01)
CPC C01B 32/174 (2017.08) [B82Y 30/00 (2013.01); C09K 5/10 (2013.01); H01B 1/04 (2013.01); H01B 1/24 (2013.01); C01B 2202/02 (2013.01); C01B 2202/06 (2013.01); C01B 2202/22 (2013.01); C01B 2202/24 (2013.01)] 16 Claims
 
1. A stable conductive grease composition comprising:
from about 25 wt-% to about 99 wt-% of a fluid;
from about 0.1 wt-% to about 5 wt-% of a nanomaterial;
wherein the nanomaterial is a carbon nanomaterial having one or more of a first functional group capable of forming a hydrogen bond or a boron nanomaterial;
wherein the fluid comprises one or more of a second functional group capable of forming a hydrogen bond, wherein the second functional group is an —OH, —NH, —COOH, —F, —BH, —O—, —N—, or combination thereof;
wherein the stable conductive grease composition is free of surfactant; and
wherein the stable conductive grease has a resistance which is improved over the fluid alone by at least about 20%.