Hydrophilic porous material sterilizable with gamma-ray
US5180492A · kind A · utility
19Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1991 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Jun 17, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249979
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A .gamma.-ray-sterilizable hydrophilic porous material has been found which includes a continuous layer made of a synthetic polymer compound forming a porous substrate and a hydrophilic and .gamma.-ray-resistant polymer supported on at least part of the surface of the porous substrate in an amount not less than 5% by weight, based on the porous substrate. The hydrophilic porous material has an average pore diameter in the range of 0.02 to 20 .mu.m, a porosity in the range of 10 to 90% and a wall thickness in the range of 10 .mu.m to 5.0 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.