Storage stabilized oxygen degradable polymer
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United States of America Patent
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Dec 18, 2001
Grant Date -
N/A
app pub date -
Sep 16, 1998
filing date -
Sep 16, 1998
priority date (Note) -
Expired
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Abstract
This invention concerns a stabilized packaging environment for a particulate vinyl lactam polymer, particularly polyvinylpyrrolidone particles, which comprises a sealed, oxygen-impervious receptacle containing said polymer particles and a separate air permeable package within the receptacle containing a water moistened oxygen scavenging agent, preferably iron powder, an iron (II) salt, ascorbic acid or a mixture of such agents.
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