POLYUREAS PREPARABLE FROM TWO POLYETHERAMINES AND A PREPOLYMER

摘要

The invention relates to a polyurea which can be produced from a) a component A comprising a1) 5 to 40% by weight of at least one polyetheramine 1 (PEA 1), which can be obtained from at least one polyether polyol 1 (PEP 1) and at least one amine 1, the PEP 1 having a weight equivalent of = 500, a2) 30 to 90% by weight of at least one polyetheramine 2 (PEA 2), which can be obtained from at least one polyether polyol (PEP 2) and at least one amine 2, the PEP 2 having a weight equivalent of > 500, a3) 5 to 30% by weight of at least one amine chain extender and b) one component B which is a prepolymer and can be obtained from b1) at least one polyether polyol (PEP 3) and b2) at least one isocyanate.