Fluorinated Compounds Useful As Foam Expansion Agents
US-2018334547-A1 · Nov 22, 2018 · US
Blowing agent compositions for insulating foams
US11447616B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11447616-B2 |
| Application number | US-201916425359-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 29, 2019 |
| Priority date | May 29, 2018 |
| Publication date | Sep 20, 2022 |
| Grant date | Sep 20, 2022 |
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- Title
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Abstract
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Disclosed is a blowing agent composition comprising a hydrofluoroolefins (HFO) and a branched hydrocarbon, and a foamable polymer composition comprising the blowing agent composition. Also disclosed is a method of making a polymer foam utilizing a blowing agent composition comprising an HFO and a branched hydrocarbon.
First claim
Opening claim text (preview).
What is claimed is: 1. A foamable polymer composition comprising: a matrix polymer composition comprising polystyrene; and a blowing agent composition comprising: from 1 to 5 wt. % of a hydrofluoroolefin (HFO) blowing agent, the HFO blowing agent consisting of 1,1,1,4,4,4-hexafluoro-2-butene; from 0.05 to 1 wt. % of a branched hydrocarbon blowing agent, the branched hydrocarbon blowing agent consisting of isobutane; and from 0.05 to 5 wt. % of a hydrofluorocarbon (HFC) blowing agent, the HFC blowing agent consisting of 1,1-difluoroethane, wherein the foamable polymer composition contains essentially no water, and wherein each wt. % is based upon the total weight of the foamable polymer composition. 2. The foamable polymer composition of claim 1 , wherein the blowing agent composition consists of the HFO blowing agent, the branched hydrocarbon blowing agent, and the HFC blowing agent. 3. The foamable polymer composition of claim 1 , wherein the foamable composition comprises less than 0.03 moles HFO blowing agent per 100 grams of matrix polymer.
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Classifications
Halogenated unsaturated hydrocarbons, e.g. H2C=CF2 · CPC title
only fluorine as halogen atoms · CPC title
Extrusion of the foamable blend · CPC title
containing carbon, halogen and hydrogen only · CPC title
Polystyrene · CPC title
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Frequently asked questions
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- What does patent US11447616B2 cover?
- Disclosed is a blowing agent composition comprising a hydrofluoroolefins (HFO) and a branched hydrocarbon, and a foamable polymer composition comprising the blowing agent composition. Also disclosed is a method of making a polymer foam utilizing a blowing agent composition comprising an HFO and a branched hydrocarbon.
- Who is the assignee on this patent?
- Owens Corning Intellectual Capital Llc, Owens Coming Intellectual Capital Llc
- What technology area does this patent fall under?
- Primary CPC classification C08J9/149. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 20 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).