Electrochemical Compression of Ammonia Using Ion Exchange Membranes
US-2017362720-A1 · Dec 21, 2017 · US
Working fluid composition for refrigerator
US9725630B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9725630-B2 |
| Application number | US-201414777583-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2014 |
| Priority date | Mar 25, 2013 |
| Publication date | Aug 8, 2017 |
| Grant date | Aug 8, 2017 |
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Abstract
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The present invention provides a working fluid composition for a refrigerating machine, comprising: a refrigerating machine oil comprising, as a base oil, a mixed ester of (A) a complex ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane and pentaerythritol, a C6-C12 polybasic acid, and a C4-C18 monohydric alcohol or a C4-C18 monocarboxylic fatty acid, and (B) a polyol ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane, pentaerythritol and dipentaerythritol, and a C4-C18 monocarboxylic fatty acid, in a mass ratio of (A) the complex ester/(B) the polyol ester of 5/95 to 95/5; and a hydrocarbon refrigerant having 3 or 4 carbon atoms, wherein a refrigerant dissolved viscosity, at a temperature of 80° C. and an absolute pressure of 1.5 MPa, is 1.0 mm 2 /s or more.
First claim
Opening claim text (preview).
The invention claimed is: 1. A working fluid composition for a refrigerating machine, comprising: a refrigerating machine oil comprising, as a base oil, a mixed ester of (A) a complex ester obtainable by synthesis of at least one polyhydric alcohol consisting of a first alcohol and optionally a second alcohol, wherein the first alcohol is selected from neopentyl glycol and trimethylolpropane, and the second alcohol is selected from C2-C10 dihydric alcohols except neopentyl glycol, a C6-C12 polybasic acid, and a C4-C18 monohydric alcohol or a C4-C18 monocarboxylic fatty acid, and (B) a polyol ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane, pentaerythritol and dipentaerythritol, and a C4-C18 monocarboxylic fatty acid, in a mass ratio of (A) the complex ester/(B) the polyol ester of 5/95 to 95/5; and a hydrocarbon refrigerant having 3 or 4 carbon atoms, wherein a refrigerant dissolved viscosity, at a temperature of 80° C. and an absolute pressure of 1.5 MPa, is 1.0 mm 2 /s or more. 2. The working fluid composition for a refrigerating machine according to claim 1 , wherein the polyhydric alcohol constituting (A) the complex ester is neopentyl glycol and/or trimethylolpropane. 3. The working fluid composition for a refrigerating machine according to claim 1 , wherein the polybasic acid constituting (A) the complex ester is adipic acid and/or sebacic acid. 4. The working fluid composition for a refrigerating machine according to claim 1 , wherein the monohydric alcohol constituting (A) the complex ester is a C8-C10 alcohol. 5. The working fluid composition for a refrigerating machine according to claim 1 , wherein (B) the polyol ester is an ester obtainable by synthesis of neopentyl glycol and/or pentaerythritol and a C4-C9 monocarboxylic fatty acid. 6. The working fluid composition for a refrigerating machine according to claim 1 , wherein (B) the polyol ester is an ester obtainable by synthesis of pentaerythritol and any one of a mixed acid of a C4 monocarboxylic fatty acid and 3,5,5-trimethylhexanoic acid, a mixed acid of a C5 monocarboxylic fatty acid and 3,5,5-trimethylhexanoic acid, and a mixed acid of a C4 monocarboxylic fatty acid, a C5 monocarboxylic fatty acid and 3,5,5-trimethylhexanoic acid. 7. The working fluid composition for refrigerating machine according to claim 1 , wherein (A) the complex ester is obtainable by synthesis of the polyhydric alcohol, the C6-C12 polybasic acid, and the C4-C18 monohydric alcohol.
Assignees
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Classifications
used as base material · CPC title
used as base material · CPC title
Viscosity; Viscosity index · CPC title
Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title
used as base material · CPC title
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- What does patent US9725630B2 cover?
- The present invention provides a working fluid composition for a refrigerating machine, comprising: a refrigerating machine oil comprising, as a base oil, a mixed ester of (A) a complex ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane and pentaerythritol, a C6-C12 polybasic acid, and a C4-C18 monohydric alcohol or a C4-C18 monoc…
- Who is the assignee on this patent?
- Jx Nippon Oil & Energy Corp
- What technology area does this patent fall under?
- Primary CPC classification C09K5/041. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 08 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).