Enhanced lubrication in polyolefin closure with polyolefin grafted cyclodextrin
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United States of America Patent
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-
Jun 10, 2008
Grant Date -
Jun 16, 2005
app pub date -
Dec 27, 2004
filing date -
Dec 10, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Thermoplastic polymer compositions in a closure can comprise a polymer, a modified vinyl polymer and a slip agent or polymer lubricant said modified polymer having a moiety comprising a cyclodextrin compound. The cyclodextrin compound, locked into the polymer structure, can absorb impurities, permeants, or other undesirable volatile materials. The cooperation between the lubricant, the cyclodextrin grafted onto the thermoplastic polymer and the polymer structure can provide barrier properties to a film, web or other polymer structure and a surface with substantial lubricity.
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