Composition containing trifluoroethylene
US-2016002518-A1 · Jan 7, 2016 · US
Working fluid for heat cycle
US10072194B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10072194-B2 |
| Application number | US-201615229724-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 5, 2016 |
| Priority date | Feb 20, 2014 |
| Publication date | Sep 11, 2018 |
| Grant date | Sep 11, 2018 |
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Abstract
Official abstract text for this publication.
To provide a working fluid for heat cycle, which has less influence over the ozone layer and has less influence over global warming, and which has favorable cycle performance. A working fluid for heat cycle, which contains trifluoroethylene and difluoroethylene, wherein the proportion of the content of difluoroethylene is less than 1.5 mass % based on the working fluid.
First claim
Opening claim text (preview).
What is claimed is: 1. A working fluid for heat cycle, comprising trifluoroethylene and difluoroethylene, wherein the proportion of the content of trifluoroethylene is at least 8.5 mass % based on the working fluid, and the proportion of the content of difluoroethylene is at least 4 ppm and less than 1.5 mass % based on the working fluid. 2. The working fluid for heat cycle according to claim 1 , wherein difluoroethylene is 1,1-difluoroethylene. 3. The working fluid for heat cycle according to claim 1 , wherein the proportion of the content of difluoroethylene is at most 0.5 mass % based on the working fluid. 4. The working fluid for heat cycle according to claim 1 , wherein the proportion of the content of trifluoroethylene is at least 10 mass % based on the entire amount of the working fluid. 5. The working fluid for heat cycle according to claim 1 , wherein the proportion of the content of trifluoroethylene is at most 70 mass % based on the entire amount of the working fluid. 6. The working fluid for heat cycle according to claim 1 , further comprising difluoromethane and 2,3,3,3-tetrafluoropropene. 7. The working fluid for heat cycle according to claim 1 , further comprising difluoromethane and trans-1,3,3,3-tetrafluoropropene. 8. The working fluid for heat cycle according to claim 1 , which further comprises a hydrofluorocarbon and/or a hydrofluoroolefin. 9. The working fluid for heat cycle according to claim 8 , wherein the hydrofluorocarbon is difluoromethane. 10. The working fluid for heat cycle according to claim 8 , wherein the hydrofluoroolefin is 2,3,3,3-tetrafluoropropene. 11. The working fluid for heat cycle according to claim 8 , wherein the hydrofluoroolefin is trans-1,3,3,3-tetrafluoropropene.
Assignees
Inventors
Classifications
Halogenated hydrocarbons · CPC title
All components of a mixture being fluoro compounds · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
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- What does patent US10072194B2 cover?
- To provide a working fluid for heat cycle, which has less influence over the ozone layer and has less influence over global warming, and which has favorable cycle performance. A working fluid for heat cycle, which contains trifluoroethylene and difluoroethylene, wherein the proportion of the content of difluoroethylene is less than 1.5 mass % based on the working fluid.
- Who is the assignee on this patent?
- Asahi Glass Co Ltd
- 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 Sep 11 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).