Pouches of ethylene-.alpha.-olefin copolymer/ethylene-vinyl acet

Details Pouches of ethylene-.alpha.-olefin copolymer/ethylene-vinyl acet Pouches of ethylene-.alpha.-olefin copolymer/ethylene-vinyl acet

1983-06-02

1985-03-05

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428518, 525222, B32B 2734, C08F 3718, C08J 140

Patent

active

045031029

ABSTRACT:
Pouches containing a flowable material e.g. milk, ice cream mix, are made of a sealant film which is a blend of a linear ethylene-C.sub.4 -C.sub.10 .alpha.-olefin copolymer and an ethylene-vinyl acetate copolymer. The ethylene-C.sub.4 -C.sub.10 .alpha.-olefin has a density of 0.916 to 0.930 g/cm.sup.3 and a melt index of from 0.3 to 2.0 dg/min. The ethylene-vinyl acetate copolymer has a weight ratio of ethylene to vinyl acetate from 2.2 to 24 and a melt index of from 0.2 to 10 dg/min. The blend has a ratio of linear ethylene-C.sub.4 -C.sub.10 .alpha.-olefin copolymer to ethylene vinyl acetate copolymer of from 1.2:1 to 9:1.

REFERENCES:
patent: 3682767 (1972-08-01), Britton et al.
patent: 3817821 (1974-06-01), Gallini
patent: 4126649 (1978-11-01), Decroix
patent: 4189519 (1980-02-01), Ticknor
patent: 4425268 (1984-01-01), Cooper

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