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US Patent 7781506 Poly(vinyl alcohol) composition comprising a polyol

Patent 7781506 was granted and assigned to E.I. Du Pont De Nemours And Company on August, 2010 by the United States Patent and Trademark Office.

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Patent abstract

Disclosed are a composition, a process that can be used to produce the composition, and an article comprising or produced from the composition wherein the composition comprises or is produced from PVOH and a polyol ester plasticizer; the PVOH includes a PVOH homopolymer or copolymer; the polyol ester plasticizer includes an esterified polyol having one or more ester groups and at least one free hydroxyl group; and the process comprises combining PVOH with a polyol ester plasticizer under a condition sufficient to transesterify the poly(vinyl alcohol).

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