Patent ID: 7981849

Claim:
A reversible thermal thickening grease, the grease comprising: filler particles; at least one polymer, wherein one or more segments of the at least one polymer is attached to a surface of at least a portion of the filler particles; and a binder; wherein the filler particles are dispersed within the binder, wherein the one or more segments of the at least one polymer is attached to the surface of the filler particles prior to dispersion of the filler particles in the binder, and wherein the polymer collapses at temperatures below a Theta temperature from about 30° C. to about 60° C. and swells at temperatures above a Theta temperature from about 30° C. to about 60° C., and at least one selected from the group consisting of a volume fraction of the filler particles ranging from about 0.6 to about 0.9 and a volume fraction of the binder ranging from about 0.1 to about 0.4.