Snap fastener and packaging bag with the same
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United States of America Patent
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May 16, 1995
Grant Date -
N/A
app pub date -
Apr 16, 1993
filing date -
Apr 17, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A snap fastener (11) having a base section (14), (17) to be welded to a bag body (22) is made of a linear chain low-density polyethylene (L-LDPE) or a compound resin of the linear chain low-density polyethylene and a low-density polyethylene (LDPE) as a sub-ingredient. A packaging bag is fabricated with the snap fastener from the bag body (22) and the pair of snap fastener half-members. When the snap fastener (11) is made of a compound resin of L-LDPE and LDPE, the composition ratio between them is set at 95-60 wt %:5-40 wt %. The melt index (MI) of the compound resin is set at a range of 1-15 g/10 minutes. The packaging bag body (22) is adapted to have an inner side layer made of L-LDPE. An outer side layer adhered to the inner side layer may be made of nylon so as to form the multilayered bag body.
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