US 11,926,803 B2
Solid lubricant and method of making the same
Vilas Ganpat Pol, West Lafayette, IN (US); Farshid Sadeghi, West Lafayette, IN (US); Abdullah Alazemi, West Lafayette, IN (US); and Arthur D. Dysart, Baldwin, NY (US)
Assigned to Purdue Research Foundation, West Lafayette, IN (US)
Filed by Purdue Research Foundation, West Lafayette, IN (US)
Filed on Sep. 24, 2020, as Appl. No. 17/031,803.
Application 17/031,803 is a division of application No. 16/013,441, filed on Jun. 20, 2018, granted, now 10,787,624.
Claims priority of provisional application 62/523,707, filed on Jun. 22, 2017.
Prior Publication US 2021/0024851 A1, Jan. 28, 2021
Int. Cl. C10M 169/04 (2006.01); B05D 1/00 (2006.01); B05D 5/08 (2006.01); C09D 1/00 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); C09D 7/65 (2018.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 10/06 (2006.01); C10N 10/08 (2006.01); C10N 10/10 (2006.01); C10N 10/12 (2006.01); C10N 30/06 (2006.01); C10N 50/02 (2006.01); C10N 50/08 (2006.01); C10N 70/00 (2006.01)
CPC C10M 169/04 (2013.01) [C09D 1/00 (2013.01); B05D 1/005 (2013.01); B05D 5/08 (2013.01); B05D 2202/15 (2013.01); B05D 2601/20 (2013.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); C09D 7/65 (2018.01); C10M 2201/041 (2013.01); C10M 2201/062 (2013.01); C10M 2207/021 (2013.01); C10M 2207/023 (2013.01); C10M 2207/08 (2013.01); C10M 2209/0625 (2013.01); C10M 2209/082 (2013.01); C10M 2209/1045 (2013.01); C10M 2213/023 (2013.01); C10M 2213/0623 (2013.01); C10N 2010/02 (2013.01); C10N 2010/04 (2013.01); C10N 2010/06 (2013.01); C10N 2010/08 (2013.01); C10N 2010/10 (2013.01); C10N 2010/12 (2013.01); C10N 2030/06 (2013.01); C10N 2050/02 (2013.01); C10N 2050/08 (2013.01); C10N 2070/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of making a solid-state lubricant coating on a substrate, the method comprising:
making a homogeneous slurry comprising powder of an oxide of a metal, graphene, and a polymeric binder;
coating a substrate with the homogeneous slurry; and
drying the slurry on the substrate, resulting in a solid lubricant coating on the substrate,
wherein the weight percent of graphene is in the range of 70 to 90 in the resulting solid lubricant coating and wherein the polymeric binder is one of polyvinylidene difluoride, polyethylene oxide, and polyvinyl acetate.