Starch-loaded polyvinyl alcohol copolymer film for packaging...

Details Starch-loaded polyvinyl alcohol copolymer film for packaging... Starch-loaded polyvinyl alcohol copolymer film for packaging...

2006-02-28

2006-02-28

Miggins, Michael C. (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C524S047000, C524S053000

Reexamination Certificate

active

07005168

ABSTRACT:
A water-soluble film for packaging a non-liquid product, a package employing the film, and methods of making the same, are disclosed. The film is made from a hydrolyzed copolymer of vinyl acetate and methyl acrylate in a range of from about 30 to about 95 percent by weight, modified starch in a range of from about 4 to about 30 percent by weight, plasticizer in a range of from about 5 to about 30 percent by weight, lubricant/release agent in a range of from about 0.0 to about 1.5 percent by weight, and surfactant in a range of from about 0.01 to about 1.5 percent by weight.

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Copies of advertisements showing a water-soluble film packet for containing dry bleaches, soaps, detergents, dyes, and other soluble products, Mono-Sol Corporation and Baldwin Rubber Company, 1962.
Product information regarding Elvanol® obtained from DuPont website (http://www.dupont.com/international-polymers/elvanol), Dec. 27, 2002.

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