US 12,378,334 B2
Methods of reducing friction on a surface of an apparatus that stores or transports a gas
Eric L. Hanson, Carlsbad, CA (US); Eric L. Bruner, La Jolla, CA (US); Majid Monji, San Diego, CA (US); Elizabeth Cambre, Texas City, TX (US); and Edward Hughes, San Diego, CA (US)
Assigned to ACULON INC., San Diego, CA (US)
Filed by ACULON, INC., San Diego, CA (US)
Filed on Dec. 13, 2023, as Appl. No. 18/538,293.
Claims priority of provisional application 63/432,215, filed on Dec. 13, 2022.
Prior Publication US 2024/0199968 A1, Jun. 20, 2024
Int. Cl. C08F 120/56 (2006.01); B01F 25/312 (2022.01); C08G 65/00 (2006.01); C08G 65/22 (2006.01); C08J 7/04 (2020.01); C09D 5/16 (2006.01); C09D 171/00 (2006.01); C09D 171/02 (2006.01); C09K 8/88 (2006.01); C10M 105/74 (2006.01); C10N 40/00 (2006.01); C23F 11/173 (2006.01); E21B 43/08 (2006.01); F17C 13/00 (2006.01)
CPC C08F 120/56 (2013.01) [C08G 65/007 (2013.01); C08G 65/226 (2013.01); C08J 7/042 (2013.01); C09D 5/1662 (2013.01); C09D 5/1693 (2013.01); C09D 171/00 (2013.01); C09D 171/02 (2013.01); C09K 8/882 (2013.01); C10M 105/74 (2013.01); C23F 11/173 (2013.01); E21B 43/08 (2013.01); F17C 13/004 (2013.01); B01F 25/31243 (2022.01); C09K 2208/34 (2013.01); C10M 2223/0603 (2013.01); C10N 2040/00 (2013.01); F17C 2201/0109 (2013.01); F17C 2221/01 (2013.01); F17C 2270/01 (2013.01)] 16 Claims
 
1. A method of reducing friction on a metal surface of an apparatus that stores or transports a gas, the method comprising:
(a) contacting the surface either directly or through an intermediate organometallic layer with a fluorinated material in a diluent, wherein the fluorinated material has the following structure:

OG Complex Work Unit Chemistry
wherein A is an oxygen radical or a chemical bond; n is 1 to 20; Y is H, F, CnH2n+1 or CnF2n+1; X is H or F; b is at least 1, m is 0 to 50, p is 1 to 20, and Z is an acid group or an acid derivative; (b) forming a hydrophobic surface layer on the metal surface; and (c) introducing the gas into the apparatus, wherein Z is

OG Complex Work Unit Chemistry
where R and R′ are each independently H, a metal or an amine or an aliphatic or substituted aliphatic radical having 1 to 50 carbons or an aryl or substituted aryl radical having 6 to 50 carbons.