Composition For Preparing A Polymeric Foam
US-2015376361-A1 · Dec 31, 2015 · US
Tetrafluoropropene based blowing agent compositions
US9815955B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9815955-B2 |
| Application number | US-201013146442-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 28, 2010 |
| Priority date | Jan 29, 2009 |
| Publication date | Nov 14, 2017 |
| Grant date | Nov 14, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention relates to blowing agent compositions comprising tetrafluoropropene (HFO) and at least one co-blowing agent selected from carbon dioxide, water, alkanes and an alcohol used in the preparation of foamable thermoplastic compositions having low density. The HFOs include, but are not limited too, cis- and/or trans-1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO 1234yf), or mixtures thereof. The blowing agent compositions are useful in the production of low density insulating foams with improved R value.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polystyrene polymer foam comprising a foamable resin and a blowing agent composition consisting of 50 wt % or more the tetrafluoropropene 1,3,3,3-tetrafluoropropene (HFO-1234ze) and at least one co-blowing agent selected from carbon dioxide, ethanol, and mixtures thereof, wherein said polymer foam comprises less than 10 wt % of said blowing agent composition and said polymer foam has a density of less than 4 pounds per cubic foot and an average cell size of from about 50 to about 500 microns. 2. The polymer foam of claim 1 having a density of between about 1.5 pounds per cubic foot and about 4 pounds per cubic foot. 3. The polymer foam of claim 1 having an open cell content of less than about 50%.
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Classifications
Water or water-releasing compounds · CPC title
Mixtures of organic and inorganic blowing agents · CPC title
CO2, N2 or noble gases · CPC title
- C08J9/149Primary
Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143 · CPC title
Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons · CPC title
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- What does patent US9815955B2 cover?
- The present invention relates to blowing agent compositions comprising tetrafluoropropene (HFO) and at least one co-blowing agent selected from carbon dioxide, water, alkanes and an alcohol used in the preparation of foamable thermoplastic compositions having low density. The HFOs include, but are not limited too, cis- and/or trans-1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropro…
- Who is the assignee on this patent?
- Van Horn Brett L, Arkema Inc
- 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 Nov 14 2017 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).