Nitrogen containing hydrofluoroethers and methods of using same
US-2017283365-A1 · Oct 5, 2017 · US
Fluorinated olefins as working fluids and methods of using same
US10280351B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10280351-B2 |
| Application number | US-201815926242-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 20, 2018 |
| Priority date | Dec 20, 2013 |
| Publication date | May 7, 2019 |
| Grant date | May 7, 2019 |
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Abstract
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A working fluid that includes a fluorinated olefin compound represented by the following general formula (I):
First claim
Opening claim text (preview).
What is claimed is: 1. A foamable composition comprising: a blowing agent; a foamable polymer or a precursor composition thereof; and a nucleating agent, wherein said nucleating agent comprises a compound represented by the following general formula (I): wherein (i) Rf 1 and Rf 2 are independently linear or branched perfluoroalkyl groups having with 1-4 carbon atoms and optionally comprise at least one catenated heteroatom, or (ii) Rf 1 and Rf 2 are bonded together to form a ring structure having 4-6 carbon atoms and optionally comprise one or more catenated heteroatoms; with the proviso that if Rf 1 and Rf 2 are bonded together to form a ring structure comprising a nitrogen heteroatom, said nitrogen heteroatom is tertiary and is bonded to a perfluoroalkyl group having 1-3 carbon atoms. 2. A foamable composition according to claim 1 , wherein the nucleating agent and the blowing agent are in a molar ratio of less than 1:2. 3. A foamable composition according to claim 1 , wherein the blowing agent comprises an aliphatic hydrocarbon having from about 5 to about 7 carbon atoms, a cycloaliphatic hydrocarbon having from about 5 to about 7 carbon atoms, a hydrocarbon ester, water, or combinations thereof.
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Classifications
Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies (F28D17/00, F28D19/00, F28D20/00 take precedence)} · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
having no double bonds between ring members or between ring members and non-ring members · CPC title
Additives · CPC title
using special vapours · CPC title
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Frequently asked questions
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- What does patent US10280351B2 cover?
- A working fluid that includes a fluorinated olefin compound represented by the following general formula (I):
- Who is the assignee on this patent?
- 3M Innovative Properties Co
- 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 May 07 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).