Hfo-1234ze, hfo-1225zc and hfo-1234yf containing compositions and processes for producing and using the compositions
US-2024352296-A1 · Oct 24, 2024 · US
Use of low GWP refrigerants comprising CF3I with stable lubricants
US9920230B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9920230-B2 |
| Application number | US-201113022902-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2011 |
| Priority date | Dec 21, 2004 |
| Publication date | Mar 20, 2018 |
| Grant date | Mar 20, 2018 |
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- Title
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Abstract
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The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, and at least one lubricant having hydrogen atoms and carbon atoms, wherein no more than 17% of the total number of hydrogen atoms which are attached to a carbon atom are tertiary hydrogen atoms.
First claim
Opening claim text (preview).
What is claimed is: 1. A heat transfer composition comprising: (a) a refrigerant comprising: (i) at least a first compound selected from at least one of 2,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and HFC-32; and (ii) at least about 40% by weight of CF 3 I; (b) lubricant; and (c) a stabilizer. 2. The composition of claim 1 wherein said at least a first compound comprises 2,3,3,3-tetrafluoropropene. 3. The composition of claim 1 wherein said at least a first compound comprises trans-1,3,3,3-tetrafluoropropene. 4. A mobile air conditioning system comprising the heat transfer composition of claim 1 . 5. A heat transfer system comprising the heat transfer composition of claim 1 . 6. A method of transferring heat to or from a fluid or body comprising contacting the fluid or body with the heat transfer composition of claim 1 . 7. A heat transfer composition comprising: (a) a refrigerant comprising: (i) at least a first compound selected from at least one of 2,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and HFC-32; and (ii) at least about 25% by weight of CF 3 I; (b) lubricant; and (c) a stabilizer. 8. The composition of claim 7 wherein said at least a first compound comprises 2,3,3,3-tetrafluoropropene. 9. The composition of claim 7 wherein said at least a first compound comprises trans-1,3,3,3-tetrafluoropropene. 10. A mobile air conditioning system comprising the heat transfer composition of claim 7 . 11. A heat transfer system comprising the heat transfer composition of claim 7 . 12. A method of transferring heat to or from a fluid or body comprising contacting the fluid or body with the heat transfer composition of claim 7 . 13. A heat transfer composition comprising: (a) a refrigerant comprising: (i) at least a first compound selected from at least one of 2,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and HFC-32; and (ii) at least about 50% by weight of CF 3 I; (b) lubricant; and (c) a stabilizer. 14. The composition of claim 13 wherein said at least a first compound comprises 2,3,3,3-tetrafluoropropene. 15. The composition of claim 13 wherein said at least a first compound comprises trans-1,3,3,3-tetrafluoropropene. 16. A mobile air conditioning system comprising the heat transfer composition of claim 13 . 17. A heat transfer system comprising the heat transfer composition of claim 13 . 18. A method of transferring heat to or from a fluid or body comprising contacting the fluid or body with the heat transfer composition of claim 13 .
Assignees
Inventors
Classifications
Refrigerators lubricants {or compressors lubricants} · CPC title
Halogenated hydrocarbons · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9920230B2 cover?
- The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, and at least one lubricant having hydrogen atoms and carbon atoms, wherein no more than 17% of the total number of hydrogen atoms which are attached to a carbon atom are tertiary hydrogen atoms.
- Who is the assignee on this patent?
- Thomas Raymond H, Singh Rajiv R, Samuels George J, and 9 more
- 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 Mar 20 2018 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).