COMPOSITION FOR COATINGS Russian patent published in 2001 - IPC

FIELD: protective coating for wood, concrete, metal and glass. SUBSTANCE: described is composition comprising polyoxypropylene triol with molecular weight of 3000-5000, 4,4'-diphenylmethane diisocyanate-based polyisocyanate, ethyl acetate, butyl acetate, tributylamine, tin octoate and/or tin dibutyl dilaurate, ratio of compounds being as follows, wt parts: polyoxypropylene triol with molecular weight of 3000-5000, 100; 4,4'-diphenylamethane diisocyanate-based polyisocyanate, 100-200; ethyl acetate 30-70; butyl acetate, 30-70; tributylamine, 0.1-0.3; 0.2-0.6 and/or tin dibutyllaurate, 0.2-0.4. Composition makes it possible to reduce hardening time by 3-6 times and increase strength coatings by 1.3-1.5 times. EFFECT: improved properties of the composition. 1 tbl