| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: polymer composition for obtaining protective-decorative coatings contains polyurethane lacquer obtained from polyoxypropylene triol with molecular weight 4500-5000 c.u. and polyisocyanate based on 4,4'-diphenyl methane diisocynate, containing 45-65 wt % non-volatile residue and 7.0-11.0 wt % isocyanate groups, and a colouring component in form of weather resistant malamine-formaldehyde enamels ML with low drying temperature (group 1 according to GOST 9825-73). ^ EFFECT: preparation of an air moisture curable one-pack polyurethane composition, which enables to obtain protective-decorative polymer coatings with high weather resistance and improved physical and mechanical properties, wider range of readily available colouring components for polyurethane compositions. ^ 3 tbl |
