Strongly basic anion-exchanging molded bodies and a method of manufacturing the same
US5936004A · kind A · utility
9Cited by
4References
9Claims
0Family size
Inventor
Key dates
| Filing date | Aug 14, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Aug 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Anion-exchanging molded bodies and a method of manufacturing the same. The aim is to find anion-exchangers which can be produced in any shape simply, cheaply and reproducibly, without the use of carcinogenic chloromethyl ethers. It has been established that halogenated polyethers, preferably epichlorhydrin polymers, can be treated with tertiary amines together with inert polymers to produce such anion-exchanging molded bodies by a phase-inversion process or evaporation of the solvent. These molded bodies can be in the form of blocks, balls or films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.