Separating agent
US-2015343420-A1 · Dec 3, 2015 · US
Absorbent polymer composition with hazard indicator
US8961820B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8961820-B2 |
| Application number | US-201314018744-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 5, 2013 |
| Priority date | Apr 14, 2010 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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An granular composition for absorbing liquids, the composition comprising perlite, super-absorbent polymer, a pH-indicating dye, and a minor amount of water. According to one preferred embodiment of the invention, the subject composition comprises about 80 weight percent perlite, about 5 weight percent SAP, about 0.0125 weight percent pH indicating dye (most preferably phenolphthalein), and from about 7 to about 9 weight percent water in the final product.
First claim
Opening claim text (preview).
We claim: 1. An absorbent granular composition consisting essentially of about 80 weight percent expanded perlite, about 5 weight percent superabsorbent polymer, about 0.0125 weight percent pH-indicating dye, and water; and wherein the composition is dried to a moisture content of about 7 to about 9 weight percent. 2. The composition of claim 1 , wherein the dye is a mixture of phenolphthalein, acid blue 9, and acid red 2.
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Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US8961820B2 cover?
- An granular composition for absorbing liquids, the composition comprising perlite, super-absorbent polymer, a pH-indicating dye, and a minor amount of water. According to one preferred embodiment of the invention, the subject composition comprises about 80 weight percent perlite, about 5 weight percent SAP, about 0.0125 weight percent pH indicating dye (most preferably phenolphthalein), and fro…
- Who is the assignee on this patent?
- Nch Corp
- What technology area does this patent fall under?
- Primary CPC classification B01J20/22. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 24 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).