Process of and apparatus for making a shingle, and shingle made thereby
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United States of America Patent
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Aug 31, 2010
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app pub date -
Sep 15, 2005
filing date -
Jun 2, 2003
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Abstract
A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.
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