The present invention relates to a polyureaurethane wherein the prepolymer
comprising said polyureaurethane has a NCO to OH equivalent ratio of from
2.0 to less than 2.5. In an embodiment, the polyureaurethane prepolymer
comprises a polyisocyanate and at least one OH-containing material, which
can be reacted with an amine-containing curing agent to produce the
polyureaurethane of the present invention.