Polymer mixture and films prepared therefrom

Details Polymer mixture and films prepared therefrom Polymer mixture and films prepared therefrom

C - Chemistry, Metallurgy

08

L

C08L 77/00 (2006.01) C08J 5/18 (2006.01) C08L 51/08 (2006.01) C08L 71/08 (2006.01) C08L 77/12 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2145569

The invention relates to a polymer mixture which contains (A) 50 to 85 wt.% of a polyether block amide consisting of 30 to 60 wt.% of polyamide-12, polyamide-11 and/or polyamide-12,12 blocks and 70 to 40 wt.% of polyethylene glycol blocks, (B) 10 to 40 wt.% of a polyether block amide consisting of 65 to 85 wt.% of polyamide-12, polyamide-11 and/or polyamide-12,12 blocks and 35 to 15 wt.% of polyethylene glycol blocks, and (C) 5 to 40 wt.% of a poly(ethylene-co-vinylacetate-g- maleic anhydride) polymer consisting of 75 to 95 wt.% of ethylene, 5 to 25 wt.% of vinylacetate and 0.1 to 2 wt.% of malefic anhydride, wherein the data relating to wt.% for the constituents (A), (B) and (C) are with reference to the total amount of polymer mixture. The invention also relates to films produced from this polymer mixture and the use of these films to produce waterproof, water vapour permeable, wind resistant textile composite materials, dressing materials and hygiene items.

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