Refrigerator oil composition, method for producing same, and working fluid composition for refrigerators
US9234155B2 · kind B2 · utility
2Cited by
7References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 19, 2013 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Feb 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A refrigerating machine oil composition comprising at least one ester additive selected from tetraesters of pentaerythritol and one selected from fatty acids having 5 to 18 carbon atoms and hexaesters of dipentaerythritol and one selected from fatty acids having 5 to 18 carbon atoms, and a base oil that is an ester other than the ester additive, in which the content of the ester additive is 2 to 20 mass % based on the total amount of the refrigerating machine oil composition, and the kinematic viscosity of the refrigerating machine oil composition at 40° C. is 3 to 500 mm2/s.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.