Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature
Patent
1980-08-08
1982-03-30
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Edge feature
53453, 206484, 2064842, 4284769, 428483, 428516, 428910, B32B 302, B32B 704, B65B 4700
Patent
active
043224652
ABSTRACT:
A clear, flexible, sealed container may be made of first and second plastic sheets sealed together at their peripheries. The first plastic sheet defines a bulge to increase the inside volume of the container, and comprises a laminate of a layer of polyolefin and a blended layer of polyolefin and a block copolymer of polyolefin and polystyrene. The second plastic sheet is a bonded laminate of a layer of biaxially oriented polypropylene and nonoriented polypropylene, peripherally bonded to the layer of polyolefin of the first plastic sheet.
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patent: 4085244 (1978-04-01), Stillman
patent: 4169910 (1979-10-01), Graboski
patent: 4210686 (1980-07-01), Gajewski et al.
patent: 4211825 (1980-07-01), Shipman
patent: 4223512 (1980-09-01), Buchner
patent: 4225644 (1980-09-01), Tsuchiya et al.
patent: 4229927 (1980-10-01), Day
patent: 4259412 (1981-03-01), Buzio et al.
patent: 4275119 (1981-06-01), Weiner
patent: 4276330 (1981-06-01), Stanley et al.
patent: 4284672 (1981-08-01), Stillman
Baxter Travenol Laboratories Inc.
Caruso John A.
Flattery Paul C.
Kirby, Jr. John P.
Van Balen William J.
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