Modified microporous structures
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United States of America Patent
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Sep 17, 1991
Grant Date -
N/A
app pub date -
Jun 15, 1990
filing date -
Jun 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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