Lubricating oil composition for refrigerator
US-2022186138-A1 · Jun 16, 2022 · US
Stabilized lubricant compositions and heat transfer compositions containing the same
US11725159B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11725159-B2 |
| Application number | US-202217577499-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 18, 2022 |
| Priority date | Jan 31, 2021 |
| Publication date | Aug 15, 2023 |
| Grant date | Aug 15, 2023 |
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- Title
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Abstract
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A lubricant composition comprises a lubricant and a stabilizer. The stabilizer comprises a first epoxide group and a second functional group selected from the group consisting of (i) a second epoxide group; (ii) an aliphatic carbon-carbon multiple bond conjugated with a second carbon-carbon multiple bond; (iii) an aliphatic carbon-carbon multiple bond conjugated with an electron withdrawing group; and (iv) an aliphatic carbon-carbon multiple bond conjugated with an aromatic group. A heat transfer composition comprises a lubricant composition as described above and a haloalkane, such as an iodoalkane (e.g., trifluoroiodomethane).
First claim
Opening claim text (preview).
What is claimed is: 1. A heat transfer composition comprising: (a) a lubricant composition comprising: (i) a lubricant; and (ii) glycidyl sorbate; and (b) a haloalkane composition comprising trifluoroiodomethane, difluoromethane, and pentafluoroethane. 2. The heat transfer composition of claim 1 , wherein the lubricant is selected from the group consisting of polyol esters, polyalkylene glycols, silicone oils, mineral oil, alkylbenzenes, polyvinyl ethers, poly(alpha-olefins), and mixtures thereof. 3. The heat transfer composition of claim 2 , wherein the lubricant is a polyol ester lubricant. 4. The heat transfer composition of claim 2 , wherein the lubricant is a polyvinyl ether lubricant. 5. The heat transfer composition of claim 1 , wherein glycidyl sorbate is present in the lubricant composition in an amount of about 0.01 wt. % to about 20 wt.%, based on the total weight of the lubricant and glycidyl sorbate present in the lubricant composition. 6. The heat transfer composition of claim 1 , wherein the lubricant composition is present in the heat transfer composition in an amount of about 0.1 wt. % to about 70 wt. % based on the total weight of the heat transfer composition. 7. The heat transfer composition of claim 1 , wherein the heat transfer composition comprises about 45 wt. % to about 55 wt. % difluoromethane, about 7 wt. % to about 17 wt. % pentafluoroethane, and about 35 wt. % to about 45 wt. % trifluoroiodomethane, based on the total weight of difluoromethane, pentafluoroethane, and trifluoroiodomethane present in the heat transfer composition.
Assignees
Inventors
Classifications
- C10M171/008Primary
Lubricant compositions compatible with refrigerants · CPC title
comprising halogenated compounds · CPC title
containing monomers having an unsaturated radical bound to an alcohol, aldehyde, ketonic, ether, ketal or acetal radical · CPC title
Condensation polymers of aldehydes or ketones; Polyesters; Polyethers · CPC title
Epoxidised acids or esters · CPC title
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- What does patent US11725159B2 cover?
- A lubricant composition comprises a lubricant and a stabilizer. The stabilizer comprises a first epoxide group and a second functional group selected from the group consisting of (i) a second epoxide group; (ii) an aliphatic carbon-carbon multiple bond conjugated with a second carbon-carbon multiple bond; (iii) an aliphatic carbon-carbon multiple bond conjugated with an electron withdrawing gro…
- Who is the assignee on this patent?
- Milliken & Co
- 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 Tue Aug 15 2023 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).