Heat-transfer compositions exhibiting improved miscibility with the lubricating oil
US-2016194541-A1 · Jul 7, 2016 · US
Heat transfer compositions having improved miscibility with lubricating oil
US10450488B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10450488-B2 |
| Application number | US-201314371118-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 9, 2013 |
| Priority date | Jan 26, 2012 |
| Publication date | Oct 22, 2019 |
| Grant date | Oct 22, 2019 |
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- Title
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Abstract
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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.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition comprising 2,3,3,3-tetrafluoropropene and from 5 to 40 wt. % of a lubricating oil, the lubricating oil comprising a polyalkylene glycol and a polyol ester, the content of polyol ester in the lubricating oil being less than or equal to 25%. 2. The composition as claimed in claim 1 comprising from 10 to 40 wt. % of the lubricating oil, and wherein the lubricating oil comprises from 5 to 25 wt. % of polyol ester and from 75 to 95 wt. % of polyalkylene glycol. 3. The composition as claimed in claim 1 , wherein the lubricating oil comprises from 7 to 20 wt. % of polyol ester and from 80 to 93 wt. % of polyalkylene glycol. 4. The composition as claimed in claim 1 , wherein the lubricating oil comprises from 10 to 15 wt. % of polyol ester and from 85 to 90 wt. % of polyalkylene glycol.
Assignees
Inventors
Classifications
Refrigerators lubricants {or compressors lubricants} · CPC title
Containing Hydrofluorocarbons · CPC title
used as base material · CPC title
used as base material · CPC title
Lubricant compositions compatible with refrigerants · CPC title
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- What does patent US10450488B2 cover?
- 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 circui…
- Who is the assignee on this patent?
- Arkema France
- What technology area does this patent fall under?
- Primary CPC classification C09K5/045. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 22 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).