Azeotropic or quasi-azeotropic composition of chloromethane
US-2017210960-A1 · Jul 27, 2017 · US
Compositions comprising 2,3-dichloro-1,1,1-trifluoropropane, 2-chloro-1,1,1-trifluoropropene, 2-chloro-1,1,1,2-tetrafluoropropane or 2,3,3,3-tetrafluoropropene
US10214669B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10214669-B2 |
| Application number | US-201615270074-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 20, 2016 |
| Priority date | May 7, 2008 |
| Publication date | Feb 26, 2019 |
| Grant date | Feb 26, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, HCFC-1131, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising HFO-1234yf, HFC-245cb, HFC-245fa, HFO-1234ze, HCFO-1233zd and HCFO-1233xf. 2. A heat transfer composition comprising the composition of claim 1 and at least one additional compound selected from the group consisting of HFC-23, HFC-143a, HFC-152a, HFC-236fa, and HFC-227ca. 3. The composition of claim 2 containing less than about 1 weight percent of the at least one additional compound. 4. A heat transfer composition comprising the composition of claim 1 . 5. The composition of claim 1 wherein the total amount HFC-245cb is greater than 0 and less than 1 weight percent. 6. The composition of claim 5 further comprising at least one member selected from the group consisting of HCFC-243db and HCFC-244db.
Assignees
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Classifications
Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143 · CPC title
having two carbon atoms · CPC title
containing fluorine · CPC title
Boiling liquids as heat transfer materials · CPC title
Halogenated saturated hydrocarbons, e.g. H3C-CF3 · CPC title
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- What does patent US10214669B2 cover?
- Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-1…
- Who is the assignee on this patent?
- Chemours Co Fc Llc
- 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 Feb 26 2019 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).