Elastomer nanocomposites comprising isobutylene and...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 23/28 (2006.01) C08K 3/34 (2006.01) C08L 23/22 (2006.01) C08L 25/16 (2006.01)

Patent

CA 2631692

The present invention provides a nanocomposite of an elastomer, a polymer or oligomer functionalized with a polar group, and a clay. The nanocomposite can be a mixture of a halogenated elastomer, an acid or acid anhydride modified polymer, and a clay, desirably an exfoliated clay, suitable for use as an air barrier. Also disclosed is a nanocomposite that can be a mixture of a halogenated elastomer, a polymer modified with a carboxylic acid, and an organoclay.

La présente invention concerne un nanocomposite d~un élastomère, d~un polymère ou d~un oligomère fonctionnalisé avec un groupe polaire, et d'une argile. Le nanocomposite peut consister en un mélange d~un élastomère halogéné, d~un polymère modifié par un acide ou un anhydride d~acide, et d~une argile, de préférence une argile exfoliée, et convient à une utilisation en tant que barrière contre les gaz. L~invention concerne également un nanocomposite pouvant consister en un mélange d~un élastomère halogéné, d~un polymère modifié par un acide carboxylique et d~une argile organique.

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