Method for manufacturing adhesive tapes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 28, 2002
Grant Date -
N/A
app pub date -
Dec 22, 2000
filing date -
Dec 22, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Pressure sensitive adhesive tapes are manufactured by continuously extruding polypropylene to form a web which is cooled and set and slit at transversely spaced positions into a plurality of side by side continuous tapes. After slitting each tape is drawn longitudinally and heat set to effect monoaxial orientation of the tape. A release coating to the first tape surface and a coating of a pressure sensitive adhesive to the second tape surface. Each continuous tape with the release coating and the adhesive coating thereon is wound into a series of cylindrical tape spools each containing a length of the tape.
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