	US 12,264,214 B2
	Spherical particles comprising carbon nanomaterial-graft-polymer and methods of production and uses thereof
Valerie M. Farrugia, Oakville (CA); Shivanthi Easwari Sriskandha, Mississauga (CA); and Robert Claridge, Kitchener (CA)
Assigned to Xerox Corporation, Norwalk, CT (US)
Filed by Xerox Corporation, Norwalk, CT (US)
Filed on May 17, 2021, as Appl. No. 17/321,997.
Prior Publication US 2022/0389145 A1, Dec. 8, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 77/00 (2006.01); C08F 292/00 (2006.01); C08L 23/00 (2006.01); C08L 75/04 (2006.01); C08L 77/06 (2006.01)

CPC C08F 292/00 (2013.01) [C08L 77/06 (2013.01)]

19 Claims

1. A composition comprising:

particles comprising a thermoplastic polymer grafted to a carbon nanomaterial (CNM-g-polymer);

wherein the particles have an aerated density of about 0.55 g/cm³to about 0.8 g/cm³;

wherein the thermoplastic polymer is a polyolefin or a polyamide;

wherein the polyamide is grafted to the carbon nanomaterial via a direct covalent bond between the polyamide and an amine functional group or a carboxylic acid functional group of the carbon nanomaterial; and

wherein the polyolefin is grafted to the carbon nanomaterial via a direct covalent bond between the polyolefin and the carbon nanomaterial, which is generated by in-situ free radical functionalization.

3. The composition of claim 1, wherein the particles have a circularity of about 0.90 to about 1.0.