Leukapheretic filter medium
US6267898A · kind A · utility
51Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24994
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A leukocyte-removing filter medium which comprises a matrix and ultra-fine fibers having a fiber diameter of less than 1.0 .mu.m and not less than 0.01 .mu.m which contains ultra-fine fibers in an amount of less than 50 wt % and not less than 0.1 wt %, the degree of curvature of the ultra-fine fibers being 1.2 or more, and/or the ultra-fine fibers form pores having a roundness of 1.7 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.