Methods of making improved packages

Details Methods of making improved packages Methods of making improved packages

1989-05-15

1991-01-22

Spruill, Robert L.

Package making

Methods

With nonreactive packaging materials

53452, 206277, 222107, B65B 300, B65B 2900, B65B 4310, B65D 8514

Patent

active

049860534

ABSTRACT:
Sheet materials and packages capable of holding hard-to-hold products such as methyl salicylate. The preferred embodiments include a foil layer 12 and a layer 14 of EVOH between foil layer 12 and the enclosed product. A carboxy modified adhesive layer 18 is disposed between the EVOH layer 14 and the product 52. Additional layers are used in the sheet material for purposes of adhesion, appearance, protection, body, and the like. One embodiment of the invention is a coextruded film comprising the EVOH layer 514, a surface layer 516, an intervening adhesive layer 518, and a fourth covering layer 519 for covering and protecting the EVOH layer 514, especially from physical abuse. A method is disclosed wherein the sheet materials of the invention may be made into packages using fin seals 54 and lap seals 50.

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