Porous polymeric material with gradients
US5728457A · kind A · utility
109Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jun 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249961
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Porous polymeric matrix materials in the form of an integral body having a property gradient selected from any of pore size distribution, chemical composition or a combination thereof are disclosed along with a process for making the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.