Dialysis
US4067803A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1975 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Jun 2, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2381/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Membranes which are particularly suitable for use in selective dialysis are described. These comprise: PA1 A. an anion exchange polymer in the form of particles of diameter from 5 to 500 .mu.; PA1 B. a cation exchange polymer in the form of particles of diameter from 5 to 500 .mu.; and PA1 C. a non-ionic film-forming polymer binder, the percentage by weight of binder not exceeding 50%, the polymers (a), (b) and (c) being insoluble in water, and the anion exchange and cation exchange polymers (a) and (b) being insoluble in at least one solvent for polymer (c), and each polymer having an ionic conductivity .lambda. and a permeability U to non-electrolytes such that .lambda./U>20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.