SILYLATED POLYURETHANES AND METHODS FOR PREPARING THEREOF

• Main Authors: DAMKE, Jan-Erik, KLEIN, Johann, BRISAR, Rok, MEJIA, Esteban
• Format: Patent
• Language: English; French; German
• Published: 02.02.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to a silylated polyurethane obtainable by reacting:d) at least one polyol having a number average molecular weight of from 1000 to 50,000 g/mol;e) at least one polyisocyanate, preferably diisocyanate; andf) at least one tertiary hydroxyl functional alkoxysilane of the general formula (I)wherein Ris selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Rand Rare same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Ris selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Ris selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Rand Rare same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; and n is 1, 2 or 3, a method for preparing thereof, a curable composition comprising the thereby obtained silylated polyurethane, and its use.