Films fabricated from mixtures of pectin and starch
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsMarshall L. Fishman, David R. Coffin
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Abstract
High modulus, flexible films may be fabricated from blends of pectin, starch and, optionally, plasticizers. The films are biodegradable, water soluble and are advantageous in that all materials are derived from agricultural products.
Claims17
A film consisting essentially of a blend of pectin and starch, wherein said pectin and said starch are present in amounts effective for the formation of the film.
A method of making a film, said method comprising,
- a) blending pectin with gelatinized starch in amounts effective for the formation of the film,
- b) casting the blend on a plate, such that a film is formed,
- c) allowing said film to dry, and
- d) removing the film from the plate.
A film consisting essentially of a blend of pectin and plasticizer, wherein said pectin and said plasticizer are present in amounts effective for the formation of the film.
Dependencies are inferred from the claim text.