Valve plate and feedblock design for co-extrusion apparatus and co-extrusion process using same
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United States of America Patent
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-
Nov 20, 1984
Grant Date -
N/A
app pub date -
Apr 15, 1983
filing date -
Apr 15, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is an apparatus and process for producing multiple-layer film or sheeting which includes an improved laydown means comprising adjustable cam-actuated control means for controlling the polymer flow and individual layer thickness.
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International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
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