Blowing agent compositions of hydrochlorofluoroolefins
US-9206297-B2 · Dec 8, 2015 · US
Use of Z-HFO-1,1,1,4,4,4-hexafluoro-2-butene in high temperature foaming application
US10155856B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10155856-B2 |
| Application number | US-201715408838-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 18, 2017 |
| Priority date | Jan 22, 2016 |
| Publication date | Dec 18, 2018 |
| Grant date | Dec 18, 2018 |
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- Title
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Abstract
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The present invention provides a process comprising reacting polyisocyanate with active hydrogen-containing compound in the presence of Z-1,1,1,4,4,4-hexafluoro-2-butene at a temperature of at least 135° F. (57.2° C.) or a temperature of 135° F. (57.2° C.) to 150° F. (65.6° C.) to obtain as a result thereof, foamed reaction product, wherein the thermal conductivity of the foamed reaction product exhibits no appreciable change at any of the foaming temperatures within this range.
First claim
Opening claim text (preview).
What is claimed is: 1. Process comprising reacting polyisocyanate with active hydrogen-containing compound in the presence of Z-1,1,1,4,4,4-hexafluoro-2-butene at a temperature of at least 135° F(57.2° C.) to obtain as a result thereof, foamed reaction product. 2. The process of claim 1 wherein said temperature is 135° F(57.2° C.) to 150° F(65.6° C.). 3. The process of claim 1 wherein said temperature is 140° F(60.0° C.) to 150° F(65.6° C.). 4. The process of claim 1 wherein said active hydrogen-containing compound is polyol. 5. The process of claim 1 wherein said reaction product is polyurethane polyisocyanurate, or a mixture of these polymers. 6. The process of claim 1 wherein said active hydrogen-containing compound and said Z-1,1,1,4,4,4-hexafluoro-2-butene are combined into a composition prior to said reacting with said polyisocyanate. 7. The process of claim 6 wherein said composition also comprises at least one of catalyst, surfactant, flame retardant. 8. The process of claim 7 wherein said composition contains each of said catalyst, surfactant, and flame retardant.
Assignees
Inventors
Classifications
Polyisocyanates or polyisothiocyanates · CPC title
premixing or pre-blending a part of the components of a foamable composition, e.g. premixing the polyol with the blowing agent, surfactant and catalyst and only adding the isocyanate at the time of foaming · CPC title
Rigid foams · CPC title
Manufacture of cellular products · CPC title
Aerosol, e.g. polyurethane foam spray · CPC title
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- What does patent US10155856B2 cover?
- The present invention provides a process comprising reacting polyisocyanate with active hydrogen-containing compound in the presence of Z-1,1,1,4,4,4-hexafluoro-2-butene at a temperature of at least 135° F. (57.2° C.) or a temperature of 135° F. (57.2° C.) to 150° F. (65.6° C.) to obtain as a result thereof, foamed reaction product, wherein the thermal conductivity of the foamed reaction produc…
- Who is the assignee on this patent?
- Chemours Co Fc Llc
- What technology area does this patent fall under?
- Primary CPC classification C08J9/146. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 18 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).