Combination of substituted cyclodextrin compound and...

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 3/22 (2006.01)

Patent

CA 2678811

The invention is a composition that can prevent formation in, or scavenge undesirable organic materials from, a polymer matrix. The composition contains cyclodextrin and particles of activated carbon. The composition can scavenge thermal decomposition products that can be produced during melt processing of a polymer, contaminants inherent in a polymer, or other types of impurities from a polymer matrix that otherwise may elute into the air, a water supply, or an ingestible material such as a food, a drug, or a beverage. Other aspects of the invention are blends of the composition with polymeric materials, methods of making blends, articles containing the composition, and methods of making articles containing the composition.

L'invention concerne une composition qui peut empêcher la formation dans une matrice polymère, ou aspirer des matériaux organiques indésirables à partir d'une matrice polymère. La composition contient de la cyclodextrine et des particules de charbon actif. La composition peut aspirer des produits de décomposition thermique qui peuvent être produits pendant le traitement par fusion d'un polymère, des contaminants inhérents à un polymère, ou d'autres types d'impuretés provenant d'une matrice de polymère qui peut autrement éluer dans l'air, une alimentation en eau, ou un matériau pouvant être ingéré comme un aliment, un médicament ou une boisson. D'autres aspects de l'invention sont des mélanges de la composition avec des matériaux polymères, des procédés de réalisation des mélanges, des articles contenant la composition, et des procédés de réalisation d'articles contenant la composition.

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