Process and apparatus for the production of tapes
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United States of America Patent
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Jun 5, 2012
Grant Date -
Aug 30, 2007
app pub date -
Mar 14, 2007
filing date -
Oct 5, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the production of tapes from a web of polymeric material, as well as an apparatus for carrying out the process, in which a polymer melt is extruded to form the web, which is then cooled, and drawn off. The web is then cut to form a tape sheet composed of a plurality of tapes. According to the invention, before its drawing, the sheet of tapes is divided into several groups of tapes and drawn separately. For this, a drawing device is provided with which the tapes are drawn separately after division of the sheet of tapes.
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