US 12,234,377 B2
Compositions, devices, and methods for improving a surface property of a substrate
John Michael Ramsey, Chapel Hill, NC (US); and William Hampton Henley, Chapel Hill, NC (US)
Assigned to The University of North Carolina at Chapel Hill, Chapel Hill, NC (US)
Appl. No. 17/048,114
Filed by The University of North Carolina at Chapel Hill, Chapel Hill, NC (US)
PCT Filed May 15, 2019, PCT No. PCT/US2019/032389
§ 371(c)(1), (2) Date Oct. 16, 2020,
PCT Pub. No. WO2020/068174, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/673,343, filed on May 18, 2018.
Prior Publication US 2021/0171798 A1, Jun. 10, 2021
Int. Cl. C09D 183/08 (2006.01); B01L 3/00 (2006.01); C09D 5/00 (2006.01); C09D 7/20 (2018.01)
CPC C09D 183/08 (2013.01) [B01L 3/502707 (2013.01); C09D 5/00 (2013.01); C09D 7/20 (2018.01); B01L 2300/165 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method of forming a film on a surface of a substrate, wherein the substrate is a microwell device, the method comprising:
contacting the surface of the substrate with a composition,
wherein the composition comprises a coating reagent and a solvent,
wherein the coating reagent is a siloxane having a structure of Formula III:

OG Complex Work Unit Chemistry
wherein each R3 is a substituted or unsubstituted alkyl, and at least one R3 is a substituted or unsubstituted C3-C30 alkyl; and z is an integer from 1 to 10; and
wherein the solvent is a polysiloxane having a viscosity of less than about 0.7 centistokes at 25° C.;
wherein the coating reagent is present in the composition in an amount from about 0.01% to about 5% by volume of the solvent; and
forming the film of the coating reagent on the surface of the substrate.