Blends of biodegradable polymers and acrylic copolymers

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 67/04 (2006.01) C08L 1/00 (2006.01) C08L 3/00 (2006.01) C08L 5/00 (2006.01) C08L 33/04 (2006.01) C08L 67/02 (2006.01)

Patent

CA 2700999

The invention relates to a blend of one or more biodegradable polymers with one or more acrylic copolymers, for the purpose of improving the properties of the biodegradable polymer(s). The biodegradable polymer contains at least 10 weight percent of a biopolymer that is in less than ideal condition for processing. The "compromised" biopolymer may be undried biopolymer, may have a heat history (be "reprocessed", "regrind" or "recycled"), or both. The acrylic copolymer(s) are present in the blend at a level of 0.1 to 15 weight percent, based on the weight of the total blend.

L'invention porte sur un mélange d'un ou plusieurs polymères biodégradables avec un ou plusieurs copolymères acryliques, dans le but d'améliorer les propriétés du ou des copolymères biodégradables. Le polymère biodégradable contient au moins 10 pour cent en poids d'un biopolymère, qui est en état moins qu'idéal pour le traitement. Le biopolymère = de compromis = peut être un biopolymèrenon séché, il peut avoir un historique thermique (être = retraité =, = rebroyé = ou = recyclé =), ou les deux. Le ou les copolymères acryliques sont présents dans le mélange à raison de 0,1 à 15 pour cent en poids, sur la base du poids mélange total.

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