Security cards
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United States of America Patent
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-
May 4, 1993
Grant Date -
N/A
app pub date -
Jun 19, 1989
filing date -
Jun 21, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security card comprises a data-carrying sheet having a gelatin layer thereon and a transparent polymeric film having a gelatin layer thereon, said sheet and said film being bonded together by an adhesive composition polymerized between and in contact with the gelatin layers, the adhesive composition comprising a carboxylic acid having at least one polymerizable acrylic group.
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