Production of laminated materials
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United States of America Patent
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Aug 24, 1993
Issued Date -
N/A
app pub date -
Jun 17, 1992
filing date -
Oct 15, 1987
priority date (Note) -
Expired
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Abstract
A process and apparatus for producing a laminate of metal and a polymeric film such as polypropylene bonded to a metal substrate such as steel or aluminum strip, preferably electrolytically chromium coated steel for making can ends, comprises laminating a polypropylene film to the metal and subjecting the film to a temperature above its melting point, and then uniformly and rapidly cooling the laminate to a temperature substantially below the melting point of the polypropylene by flooding the polypropylene coated surface of the laminate with cold liquid, e.g., water at room temperature.
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