METHOD FOR THE PREVENTION OF THE FORMATION OF SUBSTANCES-CURING AGENTS OF THEIR PRECURSORS IN THE AEROSOL COMPOSITION AND TWO-COMPONENT AEROSOL COMPOSITION

摘要

A method of preventing the formation of hardening substances from their precursors in an aerosol composition suitable for use in an aerosol can for making paints and varnishes, in which an aerosol composition is prepared by adding the following substances to a can: kravoobrazuyuschimi chemicals, including epoxy resin precursor; weak acid and possible solvent; and mixing these chemical-forming chemicals, a weak acid and a possible solvent to form a mixture before or after adding these compounds to a balloon, characterized in that a weak acid (XCOOH) is added in a catalytic amount, the weak acid selected from the group in which weak acids have the value of the dissociation constant pKa, lying in the range from 1.2 to 5.2, in the presence of (free) water and ketone chemical equilibrium between the epoxy resin hardener precursor and epoxy hardeners The resins were shifted towards the formation of precursors of epoxy hardeners according to the general reaction equation (2a): XCOOH + amines hardeners of epoxy resin + ketone → precursor of hardener epoxy resin + water (2a), so that the formation of amine hardeners of epoxy resin from hardeners precursors is prevented epoxy resin, and the precursors of hardeners epoxy resin selected from the group consisting of imine, enamine, Mannich base, aldimine, and mixtures thereof.