Hfo-1234ze, hfo-1225zc and hfo-1234yf containing compositions and processes for producing and using the compositions
US-2024352296-A1 · Oct 24, 2024 · US
Hydrofluorocarbon/trifluoroiodomethane/ hydrocarbons refrigerant compositions
US9938442B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9938442-B2 |
| Application number | US-94122807-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 16, 2007 |
| Priority date | Nov 16, 2007 |
| Publication date | Apr 10, 2018 |
| Grant date | Apr 10, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A composition comprising from about 40 weight percent to about 99.9 weight percent of at least one C 1 -C 5 hydrofluorocarbon, from about 0.1 weight percent to about 50 weight percent of CF3I, and from about 0.1 weight percent to about 10 weight percent of at least one C 1 -C 6 hydrocarbon and the use of these composition for in methods of the recharging of refrigeration systems.
First claim
Opening claim text (preview).
What is claimed is: 1. A single phase composition consisting essentially of: (a) not less than about 40 weight percent of a blend comprising difluoromethane (R-32) and 1,1,1,2,2-pentafluoroethane (R-125); (b) from about 38.3 weight percent to about 48.3 weight percent of CF 3 I; (c) optionally isobutane and/or n-butane; and (d) about 0.2% or greater of lubricant, wherein the composition is a single-phase composition. 2. The composition of claim 1 wherein said blend is non-azeotropic. 3. The composition of claim 2 wherein said lubricant is selected from mineral oil, hydrocarbon oil, alkyl oil, alkyl benzene oil, white or paraffinic oil, and mixtures thereof. 4. The composition of claim 2 wherein said lubricant comprises mineral oil. 5. The composition of claim 2 wherein said lubricant comprises alkyl benzene oil. 6. The composition of claim 1 wherein the isobutane and/or n-butane is present in an amount of from about 0.1 weight percent to about 8 weight percent. 7. The composition of claim 1 wherein the isobutane and/or n-butane is present in an amount of from about 0.1 weight percent to about 5 weight percent. 8. The composition of claim 1 wherein said lubricant comprises mineral oil. 9. The composition of claim 1 wherein said lubricant comprises alkyl benzene oil. 10. The composition of claim 1 wherein said lubricant is selected from mineral oil, hydrocarbon oil, alkyl oil, alkyl benzene oil, white or paraffinic oil, and mixtures thereof.
Assignees
Inventors
Classifications
Petroleum or coal fractions, e.g. tars, solvents, bitumen · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
Halogenated hydrocarbons · CPC title
Lubricant compositions compatible with refrigerants · CPC title
Well-defined aromatic compounds · CPC title
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- What does patent US9938442B2 cover?
- A composition comprising from about 40 weight percent to about 99.9 weight percent of at least one C 1 -C 5 hydrofluorocarbon, from about 0.1 weight percent to about 50 weight percent of CF3I, and from about 0.1 weight percent to about 10 weight percent of at least one C 1 -C 6 hydrocarbon and the use of these composition for in methods of the recharging of refrigeration systems.
- Who is the assignee on this patent?
- Spatz Mark W, Thomas Raymond H, Singh Rajiv R, and 4 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 Apr 10 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).