Composition for refrigeration machine and composition kit for refrigeration machine
US-2024240101-A1 · Jul 18, 2024 · US
Refrigerator oil and working fluid composition for refrigerator
US2017327765A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017327765-A1 |
| Application number | US-201515522670-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 22, 2015 |
| Priority date | Nov 4, 2014 |
| Publication date | Nov 16, 2017 |
| Grant date | — |
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Abstract
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The present invention provides a refrigerating machine oil containing an ester base oil obtained from pentaerythritol and mixed fatty acids of a fatty acid having 8 carbon atoms and a fatty acid having 9 carbon atoms, wherein a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, of the ester base oil is 1.06 to 1.20, and used with a mildly flammable hydrofluorocarbon refrigerant.
First claim
Opening claim text (preview).
1 . A refrigerating machine oil comprising: an ester base oil obtained from pentaerythritol and mixed fatty acids of a fatty acid having 8 carbon atoms and a fatty acid having 9 carbon atoms, wherein a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, of the ester base oil is 1.06 to 1.20. 2 . A working fluid composition for a refrigerating machine comprising the refrigerating machine oil according to claim 1 and a mildly flammable hydrofluorocarbon refrigerant. 3 - 4 . (canceled) 5 . A method for improving flame retardancy of a refrigerating machine comprising a mildly flammable hydrofluorocarbon refrigerant, the method comprising utilizing a composition comprising, as a refrigerating machine oil, an ester base oil obtained from pentaerythritol and mixed fatty acids of a fatty acid having 8 carbon atoms and a fatty acid having 9 carbon atoms, wherein a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, of the ester base oil is 1.06 to 1.20.
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Classifications
Resistance to extreme temperature · CPC title
Containing Hydrofluorocarbons · CPC title
Refrigerants · CPC title
Soluble oils · CPC title
Molecular weight; Molecular weight distribution · CPC title
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- What does patent US2017327765A1 cover?
- The present invention provides a refrigerating machine oil containing an ester base oil obtained from pentaerythritol and mixed fatty acids of a fatty acid having 8 carbon atoms and a fatty acid having 9 carbon atoms, wherein a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, of the ester base oil is 1.06 to 1.20, and used with a mildly flammable hyd…
- Who is the assignee on this patent?
- Jxtg Nippon Oil & Energy Corp
- What technology area does this patent fall under?
- Primary CPC classification C10M171/008. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 16 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).