E.i. Dupont De Nemours and Company

Edward J Stancik

Mark F Teasley

Barry Alan Morris

Richard Allen Hayes

Joseph V Kurian

Yuanfeng Liang

Marko Strukelj

Rameshchandra M Gohil

Susan Yen-Tee Tseng

Noel M Hasty

Disclosed is a composition comprising an aliphatic-aromatic copolyester consisting essentially of a dicarboxylic acid component that includes a terephthalic acid component and a linear aliphatic dicarboxylic acid component; and a glycol component consisting essentially of a linear aliphatic glycol component and 0 to 4 mole percent based on 100 mole percent total glycol component of a dialkylene glycol component; starch; optionally water; and polyol plasticizer. Also disclosed are shaped articles such as films which exhibit greater than expected tear strength and methods for preparing the films.

Biodegradable starch-containing composition with improved tear strength

Disclosed is a composition comprising an aliphatic-aromatic copolyester consisting essentially of a dicarboxylic acid component that includes a terephthalic acid component and a linear aliphatic dicarboxylic acid component, a glycol component consisting essentially of a linear aliphatic glycol component and 0 to 4 mole percent based on 100 mole percent total glycol component of a dialkylene glycol component and at least one additional component; starch; water; and polyol plasticizer. Also described are shaped articles such as films which exhibit greater than expected tear strength and methods for preparing the films.

Biodegradable starch-containing blend

Sulfonated aliphatic-aromatic polyester compositions having improved thermal properties and biodegradability, and articles such as films, coatings and laminates, produced from the sulfonated aliphatic-aromatic polyester compositions, are provided.

Aliphatic-aromatic polyesters, and articles made therefrom

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Diamondhead, MS, United States of America

Edward J Stancik