Hollow composite fibers selectively permeable to water vapor
US4900626A · kind A · utility
21Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1987 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Jul 28, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2975
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Selectively permeable, hollow composite fibers, well adapted for the dehumidification of air or carbon dioxide, are comprised of (a) an asymmetric, hollow, polymeric base fiber including both dense and porous component layers, and (b) a polymer layer coated onto the dense layer of said asymmetric hollow base fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.