Compositions, system and methods for introducing POE lubricant into an electric (HEV, PHEV, EV) automotive air-conditioning/heating system or stationary air-conditioning/heating system or stationary refrigeration 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 Aug. 24, 2022, as Appl. No. 17/894,441.
Application 17/894,441 is a continuation of application No. 17/156,674, filed on Jan. 25, 2021, granted, now 11,453,834.
Application 17/156,674 is a continuation of application No. 16/252,767, filed on Jan. 21, 2019, granted, now 10,913,913, issued on Feb. 9, 2021.
Claims priority of provisional application 62/620,575, filed on Jan. 23, 2018.
Claims priority of provisional application 62/745,449, filed on Oct. 14, 2018.
Prior Publication US 2022/0403279 A1, Dec. 22, 2022
1. A composition comprising about 50 to about 80 wt % polyol ester lubricant and about 20 to about 50 wt % of a fluoroolefin refrigerant comprising 1234yf, wherein the refrigerant exhibits a global warming potential (GWP) of less than about 150 wherein the lubricant is miscible with the refrigerant at over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container when measured using ASHRAE 97: 2007, wherein the lubricant comprises less than 50 ppm water when measured in accordance with ASTM E284, and wherein the composition has a total acid number less than one of 3.3 mg KOH/g, 1.5 mg KOH/g and 1.0 mg KOH/g as measured per ASTM D664-01 at 175° C.