Packaging wrapper for disk-shaped magnetic information carriers

Details Packaging wrapper for disk-shaped magnetic information carriers Packaging wrapper for disk-shaped magnetic information carriers

1988-03-11

1989-09-05

Fidei, David T.

Special receptacle or package

For body treatment article or material

Bandage, drape or dressing

206312, 206484, 428 358, B65D 8530

Patent

active

048630322

ABSTRACT:
A packaging wrapper for disk-shaped magnetic information carriers is disclosed. The wrapper is formed by folding over a blank to form a flat wrapper. The wrapper has projecting tabs jutting out laterally from the sides of the front wrapper wall and overlap zones on the rear wrapper wall formed as a result of folding-over of the projecting tabs. The projecting tabs are firmly bonded to the rear wrapper wall by means of welding. The blank for forming the packaging wrapper is formed from a biaxially oriented, opaque multi-ply film comprising a base layer consisting essentially of polypropylene and fillers. The fillers are present in a quantity in the range from 10 to 30% by weight, relative to the total weight of the polypropylene and fillers.

REFERENCES:
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patent: 3224573 (1965-12-01), Way
patent: 3426960 (1969-02-01), Shore
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patent: 4082877 (1978-04-01), Shadle
patent: 4238030 (1980-12-01), Maylandt
patent: 4303708 (1981-12-01), Gebhardt et al.
patent: 4337284 (1982-06-01), Cooper et al.
patent: 4762225 (1988-08-01), Henkel
patent: 4769263 (1988-09-01), Bitter
patent: 4792042 (1988-12-01), Koehn et al.

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