Retort pouch and coextruded film therefor

Details Retort pouch and coextruded film therefor Retort pouch and coextruded film therefor

1987-01-08

1988-09-06

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

53440, 53455, 428213, 428349, 428458, 428461, 428515, 428516, 428517, B65D 6540, B32B 2708, B65B 5514

Patent

active

047692618

ABSTRACT:
A seal layer for use in large institutional-sized retort pouches comprises an ABA film structure wherein the A layers are each composed of a blend of a minor amount of an elastomer and a major amount of a polyolefin, and the B layer is composed of a blend of a major amount of an elastomer and a minor amount of a polyolefin. Retort pouches made with this ABA film structure as the seal layer exhibits improved impact strength.

REFERENCES:
patent: 4294889 (1981-10-01), Hashimoto
patent: 4352849 (1982-10-01), Mueller
patent: 4424253 (1984-01-01), Anderson
patent: 4424256 (1984-01-01), Christensen et al.
patent: 4505969 (1985-03-01), Weiner
patent: 4643926 (1987-02-01), Mueller

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