摘要 |
<p>A polymer mixt. (I) contains: (A) 50-85 wt% polyether-block-amide contg. 30-60 wt% polyamide (PA) 12, PA 11 and/or PA 12, 12 blocks and 70-40 wt% polyethylene glycol (PEG) blocks; (B) 10-40 wt% polyether-block-amide contg. 65-85 wt% PA 12, PA 11 and/or PA 12, 12 blocks and 35-15 wt% PEG blocks; and (C) 5-40 wt% of a poly(ethylene-co-vinyl acetate-g-maleic anhydride) graft copolymer contg. 95 wt.% ethylene (E), 5-25 wt% vinyl acetate (VA) and 0.1-2 wt% maleic anhydride (MA). Also claimed is a water vapour-permeable, water-impermeable film (II) obtd. from (I).</p> |
申请人 |
ELF ATOCHEM DEUTSCHLAND GMBH, 40474 DUESSELDORF, DE |
发明人 |
STEENBLOCK, ROLAND, 53340 MECKENHEIM, DE;KOCK, NORBERT, 53578 WINDHAGEN, DE;FIEDLER, DETLEF, 53113 BONN, DE |