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US-2025074852-A1 · Mar 6, 2025 · US
Process for preparing divinyl ethers
US8946487B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8946487-B2 |
| Application number | US-201213398257-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 16, 2012 |
| Priority date | Feb 17, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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Process for preparing divinyl ethers by reacting compounds having two hydroxyl groups (hereinafter referred to as diols) with acetylene, wherein the hydroxyl groups are incompletely reacted with acetylene and the resulting product mixture therefore comprises the monovinyl ether in addition to the divinyl ether and the monovinyl ether is separated off from the product mixture by extractive distillation in the presence of an extractant.
First claim
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The invention claimed is: 1. A process for preparing a divinyl ether, comprising: reacting a diol having two hydroxyl groups with acetylene, wherein the hydroxyl groups are incompletely reacted with acetylene and a resulting product mixture comprises monovinyl ether and divinyl ether; and separating off the monovinyl ether from the product mixture by extractive distillation in the presence of an extractant, wherein the product mixture comprises from 60 to 95% by weight of divi…
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- What does patent US8946487B2 cover?
- Process for preparing divinyl ethers by reacting compounds having two hydroxyl groups (hereinafter referred to as diols) with acetylene, wherein the hydroxyl groups are incompletely reacted with acetylene and the resulting product mixture therefore comprises the monovinyl ether in addition to the divinyl ether and the monovinyl ether is separated off from the product mixture by extra…
- Who is the assignee on this patent?
- Maidhof Thomas, Kronemayer Helmut, Grosch Georg Heinrich, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification C07C41/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 03 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).