Packaging material for and packaged product of medical supplies and the like
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United States of America Patent
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Sep 11, 2007
Grant Date -
Jan 20, 2005
app pub date -
Jun 18, 2004
filing date -
Jun 20, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A packaging material is formed by a substrate, and an inner sealing layer comprising a polyolefin layer and an aqueous dispersion-type polyester resin layer successively disposed on the substrate. The aqueous dispersion-type amorphous polyester resin layer contains an anionic surfactant or an amphoteric surfactant and is substantially free from an organic solvent having a boiling point of at most 100.degree. C. The thus-formed packaging material is excellent in aroma-retentivity, aroma non-adsorptivity, particulate non-adhesion, low residual solvent and sealability. The packaging material is also free from environmental problem and is therefore suitable as a packaging material for particulate medical supplies and health foodstuff.
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