Patent ID: 9631129
Date: 2017-04-25
CPC Classifications: C09K,C10M,C10N

Claim:
1. A liquid composition for use in compression refrigeration, air-conditioning and/or heat pump systems consisting essentially of: (A) refrigerant consisting essentially of 1,3,3,3-tetrafluoropropene (HFO-1234ze), wherein said HFO-1234ze consists of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze); and (B) from about 1% up to about 50% by weight of polyol ester lubricant having a viscosity of from about 30 to about 200 centistokes at about 37° C., wherein said composition has substantially one liquid phase at least over the range of temperatures from about −50° C. to about +70° C. when measured at each of the lubricant concentrations of 5%, 20% and 50% by weight.