C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 3/02 (2006.01) A01G 13/02 (2006.01) A61K 9/20 (2006.01) A61K 9/48 (2006.01) C08J 5/18 (2006.01) C08L 3/00 (2006.01) C08L 3/06 (2006.01) C08L 3/08 (2006.01) C09K 17/52 (2006.01)
Patent
CA 2295647
The invention relates to a starch-based thermoplastic mixture, obtained by preparing and mixing A) 100 weight parts of at least one cationic starch a) and at least one anionic starch b), B) 0-400 weight parts of a polymer material which can be thermoplastically processed and is different from A), C) water in a sufficient quantity for plasticising the mixture, D) at least one plasticiser in a quantity of 10 weight parts - half the sum of the weight parts of A) and B), and E) optionally, up to ((A) + B)) weight parts of other usual additives, the water content of constituents A) and B) having been corrected to zero by calculation. The invention also relates to the use of the inventive mixture for producing shaped bodies and films.
L'invention concerne un mélange thermoplastique à base d'amidon s'obtenant par préparation et mélange de (A) 100 parties en poids d'au moins un amidon cationique a) et d'au moins un amidon anionique b), (B) 0-400 parties en poids d'un matériau polymère différent de (A) et apte à la mise en oeuvre thermoplastique, (C) de l'eau en une quantité suffisante pour la plastification du mélange, (D) au moins un plastifiant en une quantité comprise entre 10 parties en poids et la moitié des sommes des parties en poids (A) et (B), et (E) éventuellement jusqu'à ((A) + (B)) parties en poids d'autres additifs usuels, la teneur en eau des constituants (A) et (B) ayant été ramenée à zéro par ordinateur. L'invention concerne également l'utilisation de ce mélange pour la fabrication de corps moulés et de films.
Bengs Holger
Wulf Stefan
Aventis Research & Technologies Gmbh & Co Kg
Fetherstonhaugh & Co.
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