Blends of starch and aliphatic-aromatic based polyester resins

Details Blends of starch and aliphatic-aromatic based polyester resins Blends of starch and aliphatic-aromatic based polyester resins

A - Human Necessities

23

K

A23K 1/00 (2006.01) A23K 1/18 (2006.01) A23L 1/0522 (2006.01) C08L 3/00 (2006.01) C08L 67/02 (2006.01)

Patent

CA 2491944

A blend of starch and a thermoplastic aliphatic-aromatic copolyester resin, at a specific gravity of greater than 1Ø In method form, the invention comprises supplying an aromatic-aliphatic based polyester, supplying starch and mixing the aromatic-aliphatic based polyester with the starch and introducing the mixture to a melt processing apparatus wherein the aromatic- aliphatic based polyester and starch are mixed and molded or extruded into a desired shape.

L'invention concerne un mélange d'amidon et d'une résine de copolyester aliphatique-aromatique thermoplastique, à une gravité spécifique supérieure à 1. Le procédé de l'invention consiste à mettre en présence un polyester aromatique-aliphatique, et de l'amidon, à les mélanger et à introduire le mélange dans un appareil de traitement par fusion, le polyester aromatique-aliphatique et l'amidon étant mélangés et fondus ou extrudés en une forme souhaitée.

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