Coating with two polyols, composition useful for such coatings and method for obtaining said coatings

摘要

The invention concerns a composition particularly useful for exterior finish, characterised in that it comprises by successive or simultaneous addition: an aqueous phase comprising a polyol solution or dispersion whereof the glass transition temperature (tg) is not more than 100 DEG C; an isocyanate sub-composition already or to be emulsified in the same aqueous phase and said polyol has at least two constituents.