Biodegradable polyester and natural polymer laminates

Stock material or miscellaneous articles – Composite – Of carbohydrate

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428 365, 428 3691, 4283184, 428480, B32B 2304

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active

058612165

ABSTRACT:
Articles are provided in which a self-supporting structure formed of natural polymer has a self-adherent, moisture resistant hydroxy-functional polyester on the structure surface. The self-supporting structure preferably is a starch and polyvinyl alcohol blend in an expanded form. The articles typically do not delaminate even when soaked in water, and are biodegradable.

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