Material coil, especially strapping material coil
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 8, 2003
Grant Date -
N/A
app pub date -
May 26, 1999
filing date -
May 26, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A roll of material, e.g., thermoplastic ribbon comprises a hollow core made of a plastic strip of which the ends are mutually joined by overlapping, and the core's outer surface facing the material to be wound being of a nature opposing slippage of the material on it. The plastic strip includes an adhesive-coated foil of which the adhesive-fitted surface forms the outer core surface facing the material. The first winding layer facing the core bonds to this core and, as a result, the finished roll is made mechanically strong and this strength can be enhanced by an adhesive-coated plastic foil tautly enclosing the outside of the roll and fitted with a projecting, adhesive free or adhesive-neutralized tear-open tab.
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