Method of manufacturing a shaped polymeric article
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United States of America Patent
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-
May 18, 2004
Grant Date -
Dec 13, 2001
app pub date -
Dec 13, 2000
filing date -
Nov 12, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method of manufacturing a shaped polymeric article is provided. A sheet of extruded hot polymeric material is provided and disposed onto a rotating belt. The rotating belt includes a mold impression therein and a plurality of apertures therethrough. The mold impression resembles a plurality of adjacent shingle impressions of substantially the same length. Each of the shingle impressions includes a bottom edge where at least one of the bottom edges is beveled to give the appearance of shingles having different lengths. Vacuum pressure is applied to the hot polymeric material through the belt, so as to draw the sheet into intimate forming contact with the mold impression to form a patterned central portion. The patterned central portion is cooled below the heat deflection temperature of the polymeric material. A length of the sheet is severed to produce a shaped polymeric article.
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