Continuous extrusion of thermoplastic materials
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United States of America Patent
Stats
-
Apr 15, 1980
Issued Date -
N/A
app pub date -
Jan 31, 1978
filing date -
Feb 25, 1975
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to a method of continuously extruding thermoplastic material with a solid, hollow or open cross-section, in which a liquid medium is continuously applied to the surface of the material being extruded before it leaves a nozzle which shapes the cross-section of the extruded material to the desired profile, and the surface of the material being extruded is also roughened, either before, simultaneously with or immediately after the application of the liquid medium, but before the material leaves the nozzle.
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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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