| abstract |
Process for the production of optionally cellular, elastic shaped articles made of polyurethane-polyurea elastomers with a waterproof surface layer by reacting a reaction mixture of an organic polyisocyanate, polyoxyalkylene polyols with ethylene oxide end groups, polyoxyalkylene polyols with propylene oxide end groups, catalysts, Amine chain extenders and, optionally, surface-active substances and blowing agents with the help of reaction injection molding (RIM) technology. |