Method and die for forming triple extruded profiles
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United States of America Patent
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Aug 18, 1998
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N/A
app pub date -
Nov 1, 1995
filing date -
Sep 1, 1993
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Abstract
A method is provided for triple extrusion of a foam material, a coating and one or more flexible flanges attached to the coating or foam material. All three materials are coextruded through a common die and are useful for forming window sashes.
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