Composite extrusion for trim seal strip and method for forming same
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United States of America Patent
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Dec 26, 2006
Grant Date -
Apr 21, 2005
app pub date -
Oct 21, 2003
filing date -
Oct 21, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A composite extrusion for an automotive seal strip is formed of an extruded body, and a veneer extruded onto the body. The extruded body is composed of ethylene-propylene diene rubber compound. The veneer is composed of a polymer blend that includes the reaction product of an acrylate polymer and a glycidyl acrylate polymer. The reaction of the acrylate polymer and the glycidyl acrylate polymer improves adhesion and also provides a barrier to inhibit migration of vulcanizing agents from the ethylene-propylene diene rubber body into the veneer that would otherwise cause discoloration during use.
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