Phosphate selective resin and related methods
US7019085B2 · kind B2 · utility
14Cited by
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20Claims
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Key dates
| Filing date | Aug 30, 2004 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Aug 30, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/40
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A crosslinked polymer for binding phosphate anions is provided, the polymer comprises a polyvalent cation attached to the polymer through at least one covalently bound anionic functional group, and wherein the anionic group is selected from a group consisting of sulfonate, carboxylate, phosphonate and mixtures thereof and wherein the cation is selected from a group consisting of aluminum, calcium, magnesium, molybdenum, manganese, titanium, barium, strontium, zirconium, vanadium, scandium, lanthanum, yttrium, cerium, nickel, iron, copper, cobalt, chromium, zinc and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.