Process for producing fluorine-containing olefin
US-2016355453-A1 · Dec 8, 2016 · US
Composition containing hydrofluoroolefin compound
US10829426B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10829426-B2 |
| Application number | US-201916535487-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 8, 2019 |
| Priority date | Mar 31, 2015 |
| Publication date | Nov 10, 2020 |
| Grant date | Nov 10, 2020 |
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Abstract
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The present invention provides a composition comprising an HFO compound, the composition having excellent stability with decomposition and oxidation of the HFO compound being inhibited, the composition having improved refrigerating capacity when used as a heat transfer medium, compared with the case in which an HFO compound is used alone. More specifically, the present invention provides a composition comprising at least one HFO compound selected from the group consisting of HFO-1234yf, (E-/Z-)HFO-1234ze, and (E-/Z-)HFO-1225ye; and a chlorine-containing compound, wherein (1) the chlorine-containing compound is at least one member selected from the group consisting of CH2═CHCl, CHF═CHCl, CH2═CFCl, CF3Cl, CH3Cl, CF3CH2Cl, CClF═CHCl, and CHF═CCl2, and (2) the chlorine-containing compound is contained in an amount ranging from 1 to 500000 mass ppm.
First claim
Opening claim text (preview).
The invention claimed is: 1. A heat transfer media comprising: at least one HFO compound selected from the group consisting of 2,3,3,3-tetrafluoropropene (HFO-1234yf), (trans-/cis-)1,3,3,3-tetrafluoropropene ((E-/Z-)HFO-1234ze), and (trans-/cis-)1,2,3,3,3-pentafluoropropene ((E-/Z-)HFO-1225ye); a chlorine-containing compound; and at least one HFC compound selected from the group consisting of difluoromethane (HFC-32), 1,2,2,2-tetrafluorothane (HFC-134a), 1,1,1,2,2-pentafluoroethane (HFC-125), 1,1,1-trifluoroethane (HFC-143a), and trifluoromethane (HFC-23), wherein (1) the chlorine-containing compound is at least one member selected from the group consisting of CH 2 ═CHCl and CH 2 ═CFCl, and (2) an amount of the chlorine-containing compound A in the heat transfer media is within a range of 1 to 400000 mass ppm. 2. The heat transfer media according to claim 1 , wherein the amount of the chlorine-containing compound in the heat media transfer is within a range of 100000 to 300000 mass ppm. 3. The heat transfer media according to claim 1 , wherein a mixture of the HFO compound and the chlorine-containing compound is an azeotrope or azeotrope-like mixture. 4. The heat transfer media according to claim 1 , further comprising at least one lubricant selected from the group consisting of polyalkylene glycols, polyvinyl ethers, and alkylbenzenes. 5. The heat transfer media according to claim 1 , further comprising water, the water being contained in an amount of 1000 mass ppm or less.
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- What does patent US10829426B2 cover?
- The present invention provides a composition comprising an HFO compound, the composition having excellent stability with decomposition and oxidation of the HFO compound being inhibited, the composition having improved refrigerating capacity when used as a heat transfer medium, compared with the case in which an HFO compound is used alone. More specifically, the present invention provides a comp…
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K5/044. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 10 2020 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).