Finely particulate composite containing carbon compound...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 53/00 (2006.01) A61K 9/14 (2006.01) A61K 31/131 (2006.01) A61K 47/34 (2006.01) A61K 51/04 (2006.01) C08F 293/00 (2006.01) C08G 81/02 (2006.01)

Patent

CA 2542049

A composite which comprises: fine particles of a block copolymer comprising a poly(ethylene glycol) chain segment and a poly(meth)acrylic ester chain segment having side chains comprising a secondary and/or tertiary amino group; and a carbon compound encapsulated therein, e.g., a fullerene or carbon nanotube optionally containing a metal enclosed therein. The composite is soluble in water and is usable as an active-oxygen scavenger. The composite is usable as a contrast medium when a metal is enclosed therein.

La présente invention se rapporte à un composite, qui comprend : de fines particules d'un copolymère séquencé renfermant un segment à chaîne poly(éthylène glycol) et un segment à chaîne ester poly(méth)acrylique possédant des chaînes latérales contenant un groupe amino secondaire et/ou tertiaire ; et un composé carboné encapsulé à l'intérieur, par exemple un nanotube de fullerène ou de carbone contenant éventuellement un métal. Le composite selon l'invention est hydrosoluble et peut servir de capteur d'oxygène actif. Le composite peut servir de milieu de contraste lorsqu'il contient un métal.

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