Modified microporous structures
US5049275A · kind A · utility
91Cited by
2References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Jun 15, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pore modified microporous membrane is disclosed which is made by the process of incorporating a polymerizable vinyl monomer within the pores of a microporous membrane followed by polymerization to secure the resulting polymer within the pores. The process is particularly suitable for modifying a hydrophobic microporous membrane with a hydrophilic polymer, as occurs for example when polyacrylic acid is secured into the pores of a polypropylene microporous membrane. In further applications of the present invention, the inventive method may be used to produce liquid membrane supports for use with or without active carriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.