Process for producing a water-soluble vinyl polymer
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United States of America Patent
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Mar 8, 1983
Grant Date -
N/A
app pub date -
Mar 18, 1981
filing date -
Mar 28, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A water-soluble vinyl polymer is produced by polymerizing a water-soluble vinyl monomer in the presence of a catalyst or under the action of ultraviolet rays to prepare a polymer having a degree of polymerization of at least 95%, adjusting the water content of the system containing said polymer to be within the range of from 15 to 30%, and irradiating said system with ionizing radiation.
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