Film made from a weldable polymer material with projections
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United States of America Patent
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-
Dec 5, 1989
Issued Date -
N/A
app pub date -
Oct 14, 1988
filing date -
Jul 4, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A film made from a weldable polymer material with projections. The projections are formed by particles which are applied, in particular sprayed, in the molten state onto the film surface. The welding factor is preferably significantly below 1.
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Cited Art Landscape
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