Lamination process and roller for use therein
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United States of America Patent
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May 24, 2011
Grant Date -
Jul 31, 2008
app pub date -
Jan 21, 2008
filing date -
Jan 25, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A web of a first sheet material and a web of a second sheet material are laminated together by a process wherein the sheet materials are wound, in an interleaved relationship, upon a roller having a radially displaceable outer surface. The roller and webs and then subjected to heating and/or a low-pressure environment so as to complete the lamination. A body of adhesive material, such as a hot melt adhesive, may be interposed between the webs and the heating or low pressure environment can activate this adhesive. Further disposed are particular configurations of rollers with radially displaceable surfaces.
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