Polymer composition

C - Chemistry – Metallurgy – 08 – L

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Details

C08L 23/00 (2006.01) C08K 5/54 (2006.01)

Patent

CA 2563003

Polymer composition comprising a) 10-99.99 % by weight of at least one polyolefin, b) 0-50 % by weight of a thermoplastic that is not a polyolefin, c) 0.005-1 % by weight of per se known polymer additives, as well as an additional component chosen among d) at least one polybranched organic/ inorganic hybrid polymer which has an inorganic core carrying organic branches, the core and branches forming a particulate structure, or/ and e) a fat-soluble metal compound prepared by reacting a metal salt and an acidic, organic compound in a process in which a suitable oxidation agent ensures that all the metal in the end product is present in its highest stable oxidation state at standard conditions (25~C and maximum 98% humidity).

La présente invention a trait à une composition à base de polymères comportant: a) 10-99,99 % en poids d'au moins une polyoléfine, b) 0-50 % en poids d'un thermoplastique autre qu'une polyoléfine, c) 0,005-1 % en poids d'additifs polymères connus en soi, ainsi qu'un constituant additionnel choisi parmi d) au moins un polymère hybride organique/inorganique polyramifié qui comporte un noyau inorganique portant des ramifications organiques, le noyau et les ramifications formant une structure particulaire, et/ou e) un composé métallique liposoluble préparé par la réaction d'un sel métallique et d'un composé organique acide dans un procédé dans lequel un agent d'oxydation approprié assure la présence totale du métal dans le produit final dans son état d'oxydation stable le plus élevé à des conditions normales (25 ·C et maximum de 98 % d'humidité).

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