Compositions containing difluoromethane and fluorine substituted olefins
US-10676656-B2 · Jun 9, 2020 · US
Compositions containing difluoromethane and fluorine substituted olefins
US11306235B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11306235-B2 |
| Application number | US-202017065173-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 7, 2020 |
| Priority date | Jul 29, 2009 |
| Publication date | Apr 19, 2022 |
| Grant date | Apr 19, 2022 |
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- Title
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Abstract
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Compositions comprising multi-fluorinated olefins and HFC-32 are disclosed. Such compositions are useful particularly for in stationary refrigeration and air conditioning equipment.
First claim
Opening claim text (preview).
What is claimed is: 1. A refrigerant for replacing R-404A in a medium temperature or low temperature refrigeration system or for an air conditioning system, said refrigerant consisting of: (a) from 70% to 80% by weight of 1234yf; and (b) from 20% to 30% by weight of R-32. 2. An air conditioning system comprising the refrigerant of claim 1 . 3. A stationary air conditioning system comprising the refrigerant of claim 1 . 4. A medium temperature refrigeration system comprising the refrigerant of claim 1 . 5. The medium temperature or a low temperature refrigeration system according to claim 4 wherein said system was a system for use with R-404A. 6. A refrigerant for replacing R-404A in a low temperature or a medium temperature refrigeration system or for an air conditioning system, said refrigerant consisting of: (a) about 80% by weight of 1234yf; and (b) about 20% by weight of R-32. 7. An air conditioning system comprising the refrigerant of claim 6 . 8. A stationary air conditioning system comprising the refrigerant of claim 6 . 9. A medium temperature refrigeration system comprising the refrigerant of claim 6 . 10. The medium temperature or the low temperature refrigeration system according to claim 9 wherein said system was a system for use with R-404A.
Assignees
Inventors
Classifications
Replacement mixtures · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
Halogenated hydrocarbons · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point · CPC title
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Frequently asked questions
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- What does patent US11306235B2 cover?
- Compositions comprising multi-fluorinated olefins and HFC-32 are disclosed. Such compositions are useful particularly for in stationary refrigeration and air conditioning equipment.
- Who is the assignee on this patent?
- Honeywell Int Inc
- 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 19 2022 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).