Metal chelate-forming fiber, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber
US6869537B1 · kind B1 · utility
7Cited by
5References
18Claims
0Family size
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Key dates
| Filing date | May 22, 2000 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | May 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/914
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fiber capable of forming a metal chelate and a process for producing the same are disclosed, wherein the fiber is characterized in that at least one metal chelate-forming compound selected from the group consisting of aminocarboxylic acid, aminocarboxylic acid, thiocarboxylic acid and phosphoric acid, which are reactive with a glycidyl group, is bonded to a molecule of a synthetic fiber through a crosslinkable compound having a reactive double bond and a glycidyl group in its molecule. The chelate-forming fiber is excellent in capturing harmful heavy metal ions and can be easily produced in a simple and safe way at a low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.