Multiple-layered sheeting apparatus
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United States of America Patent
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-
Nov 20, 1984
Issued Date -
N/A
app pub date -
Apr 15, 1983
filing date -
Aug 16, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a process and apparatus for extrusion of multiple-layer sheeting comprising an improved co-extrusion feedblock and valve plate for laying down co-extruded resin streams onto a main extruded polymeric resin. The new design provides advantageous external control of the layer number as well as a more refined control of layer thicknesses.
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- Non-US Classification not provided for expired patents
Cited Art Landscape
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- Citation Ranking not provided for expired patents
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