Packaging material for and packaged product of medical...

Details Packaging material for and packaged product of medical... Packaging material for and packaged product of medical...

2007-09-11

2007-09-11

McNeil, Jennifer (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S035900, C428S036600, C428S036700, C428S034300, C428S349000, C428S483000

Reexamination Certificate

active

10869849

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° 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.

REFERENCES:
patent: 4778698 (1988-10-01), Ou-Yang
patent: 5043376 (1991-08-01), Sharma et al.
patent: 5391429 (1995-02-01), Otani et al.
patent: 5869567 (1999-02-01), Fujita et al.
patent: 5888648 (1999-03-01), Donovan et al.
patent: 6521679 (2003-02-01), Okada et al.
patent: 2004/0052993 (2004-03-01), Dawes
patent: 57-69043 (1982-04-01), None
patent: WO9619333 (1996-06-01), None

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