Multicomponent continuous film die
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United States of America Patent
Stats
-
Mar 6, 1984
Grant Date -
N/A
app pub date -
Apr 7, 1982
filing date -
Apr 7, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elongated flat die, for extruding parallel streams of different polymers to form a continuous, striped film, includes a body member which houses a replaceable insert. The insert is formed with grooves on at least two abutting surfaces, which, together with the interior surfaces of the body member, define separate, alternating passages through which the polymers flow. Streams of the different polymers flow together in alternating arrangement and exit the die through a variable lip passage.
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Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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