Processing materials
US-2016358744-A1 · Dec 8, 2016 · US
Device for producing water-absorbent polymer particles
US9919284B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9919284-B2 |
| Application number | US-74691008-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 16, 2008 |
| Priority date | Dec 17, 2007 |
| Publication date | Mar 20, 2018 |
| Grant date | Mar 20, 2018 |
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- Title
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Abstract
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The present invention relates to an apparatus for producing water-absorbing polymer particles by polymerizing monomers on a continuous conveyor belt, wherein joins of the conveyor belt and/or damage on the conveyor belt surface have been sealed with a sealing composition.
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus for producing water-absorbing polymer particles by polymerizing monomers on a continuous conveyor belt, wherein the conveyor belt surface comprises silicone rubber, joins of the conveyor belt are sealed with a sealing composition based on silicone rubber, and the conveyor belt comprises at least one releasable mechanical connector. 2. The apparatus according to claim 1 , wherein the at least one releasable connector can be released by disconnecting at least one coupling bar. 3. The apparatus according to claim 1 , wherein the conveyor belt is a surface-coated fabric. 4. The apparatus according to claim 1 , wherein the sealing composition is stable up to at least 140° C. 5. The apparatus according to claim 1 , wherein the sealing composition is hydrophobic. 6. A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution or suspension on a continuous conveyor belt of an apparatus according to claim 1 . 7. The process according to claim 6 , wherein the water-absorbing polymer particles have a centrifuge retention capacity of at least 15 g/g.
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Frequently asked questions
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- What does patent US9919284B2 cover?
- The present invention relates to an apparatus for producing water-absorbing polymer particles by polymerizing monomers on a continuous conveyor belt, wherein joins of the conveyor belt and/or damage on the conveyor belt surface have been sealed with a sealing composition.
- Who is the assignee on this patent?
- Weismantel Matthias, Funk Ruediger, Blair Leigh R, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B01J19/22. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 20 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).