Porous cross-linked polyvinyl alcohol particles, process for producing the same, and separating agent composed of the same
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United States of America Patent
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Sep 5, 1989
Grant Date -
N/A
app pub date -
Jul 7, 1987
filing date -
Jul 9, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Porous cross-linked polyvinyl alcohol particles which is used for a chromatographic medium is prepared by: dispersing an aqueous solution of a mixture of polyvinyl alcohol and a salt in an organic solvent; allowing a gel to form spontaneously from the dispersion; and reacting the gel with a cross-linking agent.
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