Process of making polytetramethylene adipamide or nylon 46 membranes
US5264165A · kind A · utility
8Cited by
7References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | May 6, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D71/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydrophilic polytetramethylene adipamide microporous membrane has a narrow pore-size distribution. The membrane is formed by a rapid quench process in a quench bath having solubility parameter above about 21 Hildebrands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.