Heat transfer compositions having improved miscibility with lubricating oil
US10450488B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2013 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Jan 25, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition including 2,3,3,3-tetrafluoropropene and a lubricating oil including a polyalkylene glycol and a polyol ester, the polyol ester content in the lubricating oil being less than or equal to 25%. A method of lubricating a vapor compression circuit, the method including using a mixture including a polyalkylene glycol and a polyol ester as lubricating oil in the vapor compression circuit, in combination with a heat transfer fluid comprising 2,3,3,3-tetrafluoropropene, the content of polyol ester in the lubricating oil being less than or equal to 25%. Further, the use of said composition in methods for heating or cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.