Thermoplastic starch compounds

Details Thermoplastic starch compounds Thermoplastic starch compounds

C - Chemistry, Metallurgy

08

L

C08L 3/02 (2006.01) A61K 9/48 (2006.01)

Patent

CA 2721112

The invention relates to a homogenus, non-dried, melt-extruded thermoplastic compound containing 30-60 wt.% dry substance of native or chemically modified starch, maximum 11 wt.% dry substance of at least one other biopolymer selected from the group consisting of carrageenan or a different polysaccharide or a protein, 20-45 wt.% dry substance of at least one softe-ner and a maximum of 20 wt.% water. Said compound can be used, advantageously, to produce moulded bodies such as soft cap-sules with increased impact resistance.

La présente invention concerne une matière thermoplastique extrudée en fusion, non séchée et homogène contenant 30 à 60 % en poids de matière sèche d'amidon natif ou modifié chimiquement, au maximum 11 % en poids de matière sèche d'au moins un autre biopolymère choisi dans le groupe comprenant le carraghénane ou un autre polysaccharide ou une protéine, 20 à 45 % en poids de matière sèche d'au moins un plastifiant et au maximum 20 % en poids d'eau. Cette matière peut être utilisée pour fabriquer des corps moulés avantageux, tels que des capsules molles à résilience accrue.

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