Procedure for the preparation of acetalic copolymers not saturated by anionic copolymerization of acrolein with epoxidic compounds. (Machine-translation by Google Translate, not legally binding)

摘要

Process for the preparation of unsaturated acetal copolymers by anionic copolymerization of acrolein with epoxy monomers, characterized in that the reaction is carried out in solvent medium, such as tetrahydrofuran, dioxane, toluene, dimethylformamide or the epoxy compound itself incorporated in excess, and temperatures between -30ºC and the boiling of the reaction mass and in the presence of catalysts of the anionic type such as piperidine, alkali metals, alkali cyanides, organometallic compounds and others. The polymer thus prepared is recovered by precipitation or by evaporation of the volatile compounds present in the reaction medium. The new copolymers prepared by this process are crosslinked by the action of light and atmospheric oxygen, and can be used in applications such as adhesives and coatings on various substrates. (Machine-translation by Google Translate, not legally binding)