Fiber capable of forming metal chelate, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber
US6875508B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2967
- WIPO fieldEnvironmental technology
- 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 aminodicarboxylic acids, aminocarboxylic acids, thiocarboxylic acids and phosphoric acid, which are reactive with a glycidyl group, is bonded to a molecule of a natural fiber or regenerated fiber through a crosslinkable compound having a reactive double bond and a glycidyl group in its molecule. There are also disclosed a method of capturing metal ions using the fiber and a metal chelate fiber which can effectively make use of the characteristics of the metals and can be easily discarded or incinerated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.