THREE-COMPONENT COMPOSITION FOR PRODUCTION OF POLYURETHANE CEMENTING HYBRID FLOORING OR COATING WITH IMPROVED GLOSS OF SURFACE Russian patent published in 2019 - IPC C04B41/48 C04B41/50 C04B28/02 C04B28/12 C04B111/62 

FIELD: construction.

SUBSTANCE: group of inventions relates to a flooring or a floor covering. Three-component composition for production of polyurethane hybrid flooring for floors consists of: a) polyol component (A) containing at least one polyol P1a with average molecular weight from 850 to 20,000 g/mol, at least one polyol P1b with average molecular weight from 48 to 800 g/mol and water, b) a polyisocyanate component (B) containing a methylenediphenyl diisocyanate (MDI) product with an average amount of NCO functional groups of at least 2.5, or MDI product with average amount of NCO functional groups of at least 2 and at least one polyol P2 in amount of 1 to 30 wt. % in terms of the weight of said polyisocyanate component (B), said MDI product and said polyol P2 reacting, at least partially, and c) powder component (C) containing at least one hydraulic binder, preferably cement and / or calcined paper pulp. Component (A) contains said polyol P1a in amount of 20–75 wt. % and said polyol P1b in amount of 2–15 wt. % in terms of total weight of component (A).

EFFECT: technical result is obtaining a shiny/semi-glossy smooth, mechanically and chemically resistant surface of flooring.

14 cl, 8 tbl