Film and pouch with patch of high elongation

Details Film and pouch with patch of high elongation Film and pouch with patch of high elongation

1995-03-02

1997-07-08

Ryan, Patrick

Stock material or miscellaneous articles

Sheet facing and longitudinally noncoextensive with web or...

428 78, 428212, 4284111, 428500, 428515, 428516, 428523, 428 352, 428 357, 426106, 426115, B32B 702, B65D 8572

Patent

active

056459130

ABSTRACT:
A laminate suitable for forming into a pouch for pumpable products, the laminate including a thermoplastic packaging film, and a patch adhered to the packaging film, the patch including a thermoplastic material and characterized by an elongation at break, at 73.degree. F. (ASTM D 882) of at least about 700% in each of the machine and transverse directions. The invention in another aspect is directed to a pouch comprising a pumpable product; a thermoplastic packaging film containing the pumpable product; and a patch adhered to the thermoplastic packaging film, the patch comprising a thermoplastic material and characterized by an elongation at break, at 73.degree. F. (ASTM D 882) of at least about 700% in each of the machine and transverse directions.

REFERENCES:
patent: 4521437 (1985-06-01), Storms
patent: 4589247 (1986-05-01), Tsuruta et al.
patent: 4603793 (1986-08-01), Stern
patent: 4746562 (1988-05-01), Fant
patent: 5288531 (1994-02-01), Falla et al.
patent: 5302402 (1994-04-01), Dudenhoeffer et al.
patent: 5325995 (1994-07-01), Harrison et al.
FS Series Films, Cryovac Prod. Broch., pp. 1-2, copyright 1992.
Sclairfilm, CL-804, Dupont Product Broch., pp. 1-2, date not given.
Sclairfilm Polyolefin Film, Dupont Prod. Brochure, pp. 1-2, date not given.
The New Top Tap, Dupont Prod. Brochure, pp. 1-3, date not given.

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