SHAPE-RETAINING TAPE, ZIPPER TAPE, PACKAGING BAG, METHOD FOR MANUFACTURING SHAPE-RETAINING TAPE, MADHOD FOR MANUFACTURING ZIPPER TAPE
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United States of America Patent
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Issued Date -
Oct 23, 2014
app pub date -
Sep 11, 2012
filing date -
Sep 30, 2011
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Abstract
A shape-retaining tape and a zipper tape that can be produced only by extrusion molding without using a stretching process, and can retain a prescribed shape by being attached to a package bag formed of a resin film or the like, and a package bag in which these tapes are attached to an opening part. In a zipper tape having an engagement part in which a protruded male part and a recessed female part are engaged with each other, shape-retaining parts formed of a resin composition obtained by adding 0.1 to 40 parts by weight of an inorganic filler relative to 100 parts by weight of a high-density polyethylene resin are provided along the tape-length direction of a male-side belt-like base part and a female-side belt-like base part.
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