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Superabsorbent polymer composite particles and processes therefore
US9688781B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9688781-B2 |
| Application number | US-83886210-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2010 |
| Priority date | Jul 20, 2009 |
| Publication date | Jun 27, 2017 |
| Grant date | Jun 27, 2017 |
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Abstract
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Superabsorbent material, comprising clay-crosslinked superabsorbent polymers, obtainable by polymerizing in a spray-stream, polymerizable compounds in the presence of a polymerization initiator system, and nano-sized or individual clay particles, which are all introduced into a vessel by a spraying step in the form of a said spray-stream thereof, whereby said clay particles crosslink said polymers during polymerization. The invention also relates to such a process and absorbent articles comprising such superabsorbent material.
First claim
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What is claimed is: 1. A Process for making clay-crosslinked superabsorbent polymers, comprising: a) providing a dispersion or solution of charged polymerizable compounds and clay particles in carrier liquid; and providing a polymerization initiator as a dispersion or solution in a carrier liquid; b) introducing said dispersion(s)/solution(s) and initiator of step a) into a spraying tool and spraying said dispersions/solutions and initiator into a vessel to obtain a spray-stream…
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- What does patent US9688781B2 cover?
- Superabsorbent material, comprising clay-crosslinked superabsorbent polymers, obtainable by polymerizing in a spray-stream, polymerizable compounds in the presence of a polymerization initiator system, and nano-sized or individual clay particles, which are all introduced into a vessel by a spraying step in the form of a said spray-stream thereof, whereby said clay particles crosslink said polym…
- Who is the assignee on this patent?
- Meyer Axel, Lindner Torsten, Schmidt Mattias, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C08F2/44. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 27 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).