Process for spinning dry-fiber cellulose acetate hollow fiber membranes
US4035459A · kind A · utility
28Cited by
11References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 1975 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | May 1, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2975
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dry-wet process for forming interiorally asymmetric hollow fiber cellulose acetate membranes is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.