| 摘要 |
A process for the production of coatings using polyurethanes or polyurethane-ureas from diisocyanates and dihydroxyl compounds having a molecular weight of 300 - 6000 and optionally further starting components and/or additives, wherein the dihydroxyl compounds comprise A) 20 - 60% by weight of optionally modified polyethylene glycols, B) 1 - 80% by weight of polycarbonates whose diol component contains 40 - 100% by weight of hexanediol and/or hexanediol derivatives, and C) if desired other dihydroxyl compounds, where (A) + (B) + (C) = 100% by weight, gives compact, water vapour-permeable coatings. |
