Packaging bag for plaster and packaged plaster

Details Packaging bag for plaster and packaged plaster Packaging bag for plaster and packaged plaster

2006-01-31

2006-01-31

Fidei, David T. (Department: 3728)

Special receptacle or package

With moisture absorbent

C206S438000, C206S484000, C206S484200, C206S524200, C206S524400

Reexamination Certificate

active

06991095

ABSTRACT:
Packaged patch (10) according to the invention comprises patch (2) situated in space (4) inside patch package (3) composed of laminated packaging material (1), and its edges are sealed. Laminated packaging material (1) comprises hygroscopic material layer (13) made of LDPE containing 20–40 wt % of an inorganic filler, situated between moisture-permeable material layer (14) made of LDPE and having a moisture permeability of 40–120 g/m2/day and a screen material layer which blocks penetration of moisture, etc. and is composed of HDPE layer (12) and aluminum foil (11). The saturation hygroscopicity of laminated packaging material (1) is 2–30 g/m2under atmosphere conditions with a temperature of 25° C. and a relative humidity of 75%. This construction sufficiently reduces the effect of moisture on a drug in patch (2) and allows patch (2) to be held in a stable state for prolonged periods, while also improving the economy and handleability of patch package (3).

REFERENCES:
patent: 4657133 (1987-04-01), Komatsu et al.
patent: 4861632 (1989-08-01), Caggiano
patent: 5698217 (1997-12-01), Wilking
patent: S62-165264 (1987-10-01), None
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patent: 07-28550 (1995-05-01), None
patent: 7-28550 (1995-05-01), None
patent: 08-040910 (1996-02-01), None
patent: 08-325141 (1996-12-01), None
patent: 08-325141 (1996-12-01), None
patent: 09-122221 (1997-05-01), None
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Partial Translation of Japanese Laid Open Utility Model Application No. H-7-28550, Publication Date May 30, 1995. Translation of Paragraphs [0019] and [0020]. Reference supplied by applicant.
“Packaging Technology Manual”, Aggregate Corporation of Nippon Packaging Technology Associate, 1″ Ed., pp. 388-389, Jul. 1, 1995.
English translation of third party reference cited in JP H11-189204.

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