Polyols, preparation and use thereof
US-9464158-B2 · Oct 11, 2016 · US
Polyether polyols, process for preparing polyether polyols and their use for producing polyurethanes
US9115246B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9115246-B2 |
| Application number | US-201113092469-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 22, 2011 |
| Priority date | Apr 30, 2010 |
| Publication date | Aug 25, 2015 |
| Grant date | Aug 25, 2015 |
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Abstract
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The present invention relates to a process for preparing polyether polyols, in which at least one hydroxyl-comprising fatty acid ester and/or at least one hydroxyl-modified fatty acid ester is reacted with the aid of a double metal cyanide catalyst in at least two process sections with in each case a mixture of ethylene oxide and at least one further alkylene oxide different from ethylene oxide.
First claim
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The invention claimed is: 1. A process for preparing a polyether polyol, the process comprising: reacting a hydroxyl-comprising fatty acid ester, a hydroxyl-modified fatty acid ester, or any mixture thereof, with a mixture of ethylene oxide and a further alkylene oxide different from ethylene oxide in the presence of a double metal cyanide catalyst in at least two process sections, wherein each process section in the at least two process sections is a phase of the proces…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9115246B2 cover?
- The present invention relates to a process for preparing polyether polyols, in which at least one hydroxyl-comprising fatty acid ester and/or at least one hydroxyl-modified fatty acid ester is reacted with the aid of a double metal cyanide catalyst in at least two process sections with in each case a mixture of ethylene oxide and at least one further alkylene oxide different from ethylene oxide.
- Who is the assignee on this patent?
- Kunst Andreas, Eling Berend, Loeffler Achim, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification C08G65/2606. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 25 2015 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).