Electrically conductive polymer blend

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 23/08 (2006.01) C08K 3/08 (2006.01) C08L 33/02 (2006.01) C08L 71/02 (2006.01) C08L 71/12 (2006.01) H01B 1/12 (2006.01) C08L 77/12 (2006.01)

Patent

CA 2447862

The invention relates to a polymer blend and a process for its preparation. The polymer blend contains A) a polymer of an olefin and an unsaturated carboxylic acid, wherein the amount of acid groups is 0.5 - 15 molar %, and B) a polyether block polymer made up of a polyether block and a polyamide or polyester block, the acid groups in polymer A and the polyether blocks in polymer B having at least partly coordinated alkali ions, and an alkali metal being present in an amount of approx. 0.02 - 3 millimols/gram of the polymer blend. The blend according to the invention has a good electrical conductivity and excellent mechanical properties.

L'invention concerne un mélange polymère et un procédé de préparation associé. Ce mélange polymère contient : a) un polymère d'oléfine et d'un acide carboxylique non saturé, dans lequel la quantité de groupes acides est de 0,5 à 15 % en moles et B) un polymère bloc polyéther composé d'un bloc polyéther et d'un bloc polyamide ou polyester, les groupes acides dans le polymère A et les blocs polyéther dans le polymère B possédant des ions alcalins au moins partiellement coordonnés et un métal alcalin étant présent à raison d'environ 0,02 à 3 millimols/gramme du mélange polymère. Le mélange selon l'invention présente une bonne conductivité électrique et de remarquables propriétés mécaniques.

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