Thermoplastic compositions based on soluble starch and method for preparing such compositions
AssigneeRoquette Freres
InventorsLeon Mentink, Didier Lagnieux, Jerome Gimenez
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Abstract
A novel starch-based composition includes: (a) at least 45% by weight of at least one soluble starch, (b) at most 55% by weight of at least one non-biodegradable, non-amylaceous polymer, and (c) a bonding agent carrying at least two functional groups capable of reacting with molecules carrying functions including an active hydrogen, these amounts being expressed with respect to solids and relative to the sum of (a) and (b). A method for preparing such a starch-based composition and a thermoplastic composition prepared by heating such a composition are also described.
Claims25
A starch-based composition comprising:
- (a) at least 45%, preferably at least 49% by weight of at least one soluble starch;
- (b) at most 55%, preferably at most 51% by weight of at least one non-biodegradable, non-starchy polymer;
- and
- (c) a coupling agent bearing at least two functional groups capable of reacting with molecules bearing functional groups having an active hydrogen, these amounts being expressed as dry matter and related to the sum of (a) and (b).
Dependencies are inferred from the claim text.