Reduction of the fraction of monomers comprising isocyanate groups in moisture-curing polyurethane compositions

(canceled)

A method for reducing the fraction of monomers comprising isocyanate groups in a composition having at least one polyurethane polymer comprising isocyanate groups and at least one monomer comprising isocyanate groups, comprising the steps of

• providing a composition containing at least one polyurethane polymer comprising isocyanate groups, and at least one monomer comprising isocyanate groups;
• combining the composition with a silicon dioxide comprising on its surface functional groups which are reactive with respect to isocyanate groups,
• wherein the silicon dioxide is present in the form of particles which have an average particle size of ≦100 μm and a specific surface area of ≧100 m2/g.

A method of reducing the fraction of monomers comprising isocyanate groups in compositions having at least one polyurethane polymer comprising isocyanate groups and at least one monomer comprising isocyanate groups with silicon dioxide comprising on its surface functional groups which are reactive with respect to isocyanate groups,

• wherein the silicon dioxide is present in the form of particles which have an average particle size of ≦100 μm and a specific surface area of ≧100 m2/g.