FIELD: chemistry.
SUBSTANCE: present invention relates to a polymer composition used for the repair of sleepers. This composition consists of two components. Component A comprises a mixture of polyols, a foam stabilizer, a thixotropic agent, at least one catalyst and water. A mixture of polyols is a mixture containing polyethers Laprol SG-500, Laprol 373 and Laprol 1052 at such a concentration in the mixture that component A has a hydroxyl number of 350–430 mg KOH/g. Component B is a polymeric isocyanate.
EFFECT: received composition has improved strength characteristics, that ensures an increase in its performance.
4 cl, 1 ex
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