CURABLE COMPOSITION WITH IMPROVED MECHANICAL PROPERTIES AND HIGH TRANSPARENCY

• Main Authors: DESPOTOPOULOU, Christina, BÄTZGEN, Ralf, DAMKE, Jan-Erik, KLEIN, Johann
• Format: Patent
• Language: English; French; German
• Published: 06.09.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to a curable composition comprising a) at least one polymer having at least one terminal group of the general formula (I) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ -A n -R-SiXYZ€ƒ€ƒ€ƒ€ƒ€ƒ(I), wherein A is a divalent or trivalent bonding group containing at least one heteroatom, R is selected from divalent hydrocarbon residues having 1 to 12 carbon atoms, X, Y, Z are, independently of one another, selected from the group consisting of a hydroxyl group and C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 1 to C 8 acyloxy groups and -CH 2 -N-R' wherein N is oxygen, nitrogen or sulfur, preferably oxygen, and R' is selected from C 1 to C 8 alkyl groups, preferably a methyl group, wherein X, Y, Z are substituents directly bound with the Si atom or the two of the substituents X, Y, Z form a ring together with the Si atom to which they are bound, and at least one of the substituents X, Y, Z is selected from the group consisting of a hydroxyl group, C 1 to C 8 alkoxy or C 1 to C 8 acyloxy groups, and n is 0 or 1; and b) at least one compound of the general formula (II) wherein R 1 is same or different and is, independently from one another, selected from the group consisting of a hydrogen atom and hydrocarbon residues having 1 to 12 carbon atoms, R 2 is same or different and is, independently from one another, selected from hydrocarbon residues having 1 to 12 carbon atoms, Ar is selected from aryl groups, and n is an integer selected from 3 to 9; and adhesive, sealant, or coating materials comprising the composition and use thereof.