PLATE MADE OF A THERMOPLASTIC MATERIAL HAVING IMPROVED OPTICAL PROPERTIES, METHOD FOR MANUFACTURING SUCH A PLATE, AND USE THEREOF
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United States of America Patent
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Issued Date -
Sep 6, 2012
app pub date -
Sep 30, 2010
filing date -
Sep 30, 2009
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Abstract
The present invention relates to a plate made of a thermoplastic material including two planar outer sheets and one thermoformed central sheet having bosses on at least one surface, which is bonded to both planar sheets, the plate incorporating a dyeing agent in a sufficient quantity so as to render the plate opaque. The plate is characterized in that the dyeing agent is incorporated into 80 to 100% of both planar outer sheets, wherein both outer sheets are opaque, and at most, incorporated into 20% of the thermoformed central sheet, wherein the center sheet is translucent. The plate of the invention can be used as a printing substrate.
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