The dispersion of silicon dioxide, polyurethane elastomer, the use of the dispersion of silicon dioxide, use of polyurethane elastomer, a mixture or combination of polymers, and film, injection molded or extruded article)

摘要

The dispersion of silicon dioxide, polyurethane elastomer, the use of the dispersion of silicon dioxide, use of polyurethane elastomer, a mixture or combination of polymers, and film, injection molded or extruded article article. The invention relates to the stable dispersion of silicon dioxide and the use thereof for the production of polyurethanes.The dispersions of silicon dioxide are preferably substantially or completely free of water and containing particles of silicon dioxide with an average particle diameter of 1 to 150 nm and at least one agent, chain extender. The particles of silicon dioxide can be modified with a silane (s) containing groups reactive to isocyanates.In addition, a polyol, especially a poliesterol and / or a compound containing isocyanate, may be present in dispersions of silicon dioxide.