Polyolefins and polyamides films

Details Polyolefins and polyamides films Polyolefins and polyamides films

C - Chemistry, Metallurgy

08

L

C08L 77/00 (2006.01) C08J 5/18 (2006.01) C08L 23/00 (2006.01)

Patent

CA 2196446

The invention relates to films composed of compositions containing: at least one polyamide (A); at least one polymer (B) comprising polyamide blocks and polyether blocks; at least one polyolefin (C); at least one functionalized polyolefin (D) and such that the impact resistance (DART TEST) is superior to that of a film containing the same proportions of (A), (C) and (D) but no (B). Such films have good shock and flex resistance, yet remain flexible.

L'invention concerne des films constitués de compositions comprenant: - au moins un polyamide (A); - au moins un polymère (B) comprenant des blocs polyamide et des blocs polyéther - au moins une polyoléfine (C); - au moins une polyoléfine fonctionnalisée (D) et telles que la résistance à l'impact (DART TEST) est supérieure à celle d'un film contenant les mêmes proportions de (A), (C) et (D) mais ne contenant pas(B). De tels films présentent de bonnes propriétés de résistance aux chocs et aux pliages tout en restant souples.

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