Packaging bag and method for production thereof
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United States of America Patent
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Issued Date -
Feb 10, 2005
app pub date -
May 20, 2004
filing date -
Nov 22, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A packaging bag, characterized in that it comprises 2 sheets of resin film (2,2) having innermost layers (2a, 2a) made from one or more resins selected from the group consisting of a polyester, a polyamide, a polyacrylonitrile, a polycarbonate, a cyclic polyolefin and a polyfluoroethylene, the 2 sheets of resin film are arranged so that the innermost layers (2a, 2a) face each other in the inner sides thereof, and peripheral edge portions of the two resin films (2,2) are bound to each other via a peripheral edge adhesion section (3) comprising a thermoplastic resin capable of melting and adhering to the resin films (2, 2).
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