Compositions, system and methods for introducing PAG lubricant or refrigerant into an air-conditioning or system using lower or low GWP refrigerant or refrigerant blends
Mary E Koban, Chadds Ford, PA (US); Nina E Gray, Philadelphia, PA (US); and Hubert Mentz, Jr., Perryville, MD (US)
Assigned to THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
Filed by THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
Filed on Sep. 26, 2023, as Appl. No. 18/372,915.
Application 18/372,915 is a continuation of application No. 17/869,470, filed on Jul. 20, 2022, granted, now 11,802,253.
Application 17/869,470 is a continuation of application No. 17/141,355, filed on Jan. 5, 2021, granted, now 11,427,777, issued on Aug. 30, 2022.
Application 17/141,355 is a continuation of application No. 16/252,756, filed on Jan. 21, 2019, granted, now 10,883,063, issued on Jan. 5, 2021.
Claims priority of provisional application 62/745,447, filed on Oct. 14, 2018.
Claims priority of provisional application 62/620,568, filed on Jan. 23, 2018.
Prior Publication US 2024/0018438 A1, Jan. 18, 2024
1. A method for delivering a polyalkylene glycol lubricant into a vehicle air conditioning system, the method comprising transferring a composition comprising about 50 to about 80 wt % polyalkylene glycol (PAG) lubricant and about 20 to about 50 wt % of a refrigerant to the vehicle air conditioning system, wherein the refrigerant exhibits a global warming potential of less than 100 and wherein the composition exhibits at least one of (i) a total acid number of at least one of less than 3.3 mg KOH/g, (ii) less than 1.5 mg KOH/g, or (iii) less than 1.0 mg KOH/g as measured per ASTM D664-01.
