C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 3/02 (2006.01) C08G 18/64 (2006.01) C08J 3/20 (2006.01) C08K 5/29 (2006.01) C08L 3/04 (2006.01) C08L 75/04 (2006.01)
Patent
CA 2712818
The subject matter of the present invention is a novel starch-based composition comprising: (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 comprising an active hydrogen, these amounts being expressed with respect to solids and relative to the sum of (a) and (b). The present invention also relates to a method for preparing such a starch-based composition and to a thermoplastic composition prepared by heating such a composition.
La présente invention a pour objet une nouvelle composition à base d'amidon comprenant: (a) au moins 45 % en poids d'au moins un amidon soluble, (b) au plus 55 % en poids d'au moins un polymère non amylacénon biodégradable,et (c) un agent de liaison porteur d'au moins deux groupements fonctionnels capables de réagir avec des molécules porteuses de fonctions à hydrogène actif, ces quantités étant exprimées en matières sèches et rapportées à la somme de (a) et (b). Elle concerne également un procédé de préparation d'une telle composition à base d'amidon et une composition thermoplastique préparée par chauffage d'une telle composition.
Gimenez Jerome
Lagneaux Didier
Mentink Leon
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
Roquette Freres
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