Pressure sensitive adhesive
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United States of America Patent
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May 24, 1994
Grant Date -
N/A
app pub date -
Oct 1, 1992
filing date -
Oct 1, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure sensitive adhesive is disclosed that is tack-free to the touch, but forms a permanent bond under moderate pressure. The pressure sensitive adhesive contains a tacky adhesive latex, a non-tacky latex or polymer, and an inert filler. The tacky adhesive latex provides the sealing properties, the non-tacky latex or polymer provides blocking properties and the filler absorbs oil that may adversely affect the sealing properties. The adhesive is tack-free to the touch yet becomes activated to form a permanent bond under moderate sealing pressure.
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