Method for attaching a polyurethane surface to a polyvinyl chloride surface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 4, 2000
Grant Date -
N/A
app pub date -
May 18, 1998
filing date -
Sep 20, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method for attaching a polyurethane (PU) surface to a polyvinyl chloride or other polymer surface, particularly useful for making smart cards. A plasticizer compatible with both the PU and the polymer is placed between the surface of the polymer and the surface of a bicomponent PU precursor resin, and pressure is applied to incorporate the plasticizer in the polymer surface and in the polyurethane as it forms.
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