Material comprising a polyamide, a polyether-polyamide block...

Details Material comprising a polyamide, a polyether-polyamide block... Material comprising a polyamide, a polyether-polyamide block...

C - Chemistry, Metallurgy

08

L

400/3018

C08L 77/00 (2006.01) C08J 5/18 (2006.01) C08L 71/00 (2006.01) C08L 77/12 (2006.01) C09K 3/16 (2006.01)

Patent

CA 2219483

The invention relates to a material comprising: (a) a polyamide; (b) a polyether- and PEG- polyether block polymer; (c) possibly a polyolefin; and (d) a functionalized polyolefin, the various constituents being present in proportions in % by weight a, b, c and d, such that: a > 0; b > 0; c + d > 0; a + b + c + d = 100; with a/b > 0.2; (a + b)/(c + d) > 1; and b/(a + b + c + d) < 0.5. The invention also relates to a breathable film and an antistatic object obtained from the material.

L'invention a pour objet un matériau comprenant : (a) un polyamide; (b) un polymère à blocs PA et blocs polyéther PEG; (c) éventuellement une polyoléfine; et (d) une polyoléfine fonctionnalisée, les divers constituants étant présents en des quantités pondérales a, b, c et d, telles que : a > 0; b > 0; c + d > 0; a + b + c + d = 100; avec a/b > 0,2; (a + b)/(c + d) > 1; et b/(a + b + c + d) < 0,5. L'invention a aussi pour objet un film imperrespirant et un objet antistatique obtenus à partir du matériau selon l'invention.

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