Pressure sensitive adhesive formulation including enhanced polyisobutylene modifier
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United States of America Patent
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Nov 9, 2004
Grant Date -
Aug 5, 2004
app pub date -
Feb 4, 2003
filing date -
Feb 4, 2003
priority date (Note) -
Expired
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Abstract
An improved pressure sensitive adhesive includes a base polymer and a PIB modifier that is made up of a homopolymer of isobutylene wherein a predominant portion of the double bonds are in either an alpha position or a beta position. The modifier may function as a plasticizer, a tackifier extender or a combination plasticizer and tackifier extender for the pressure sensitive adhesive.
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