Water soluble multilayer film for packaging alkaline materials

Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing

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428522, 428 367, 428520, 428515, B32B 108

Patent

active

053625323

ABSTRACT:
A multilayer structure, especially a multilayer film, for packaging alkaline, or caustic, compositions. The multilayer structure consists essentially of:

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patent: 4551369 (1985-11-01), Belz
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patent: 4870148 (1989-09-01), Belz
patent: 4883105 (1989-12-01), Yang et al.
patent: 5108807 (1992-04-01), Tucker

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