Exxon Chemical Patents, Inc.

Lawrence K Locke

Donald R Hazelton

William J Hodgson, Jr

Douglas J Laurent

A seal layer for use in heat sealed containers, especially retortable polymer containers. A semirigid or rigid packaging container with a multilayer laminate heat sealed to a tray flange, the laminate having a barrier layer and the lidding being easily opened by cohesive failure of a layer containing as elastomer. The elastomer is preferably PIB in a heat seal film layer on a polypropylene tray.

Food package, retort lidding, and coextruded film therefor

A multilayer film comprises a elastomeric core layer and at least one thermoplastic skin layer having a microundulating surface configuration providing the film with a low gloss.

Low gloss film and process of manufacture (FP 1323)

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.

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Seabrook, TX, United States of America

Lawrence K Locke