Patent Number: 8,877,837

Title: Curing of epoxy resin compositions comprising cyclic carbonates using mixtures of amino hardeners and catalysts

Abstract: A process for curing epoxy resins which comprises curing epoxy resin compositions comprising a) epoxy resins and b) a compound of the general formula I ##STR00001## in which R.sup.1 and R.sup.2 independently of one another are hydrogen, C.sub.1-C.sub.6-alkyl, C.sub.1-C.sub.4-alkoxy-C.sub.1-C.sub.4-alkyl, C.sub.5-C.sub.6-cycloalkyl, phenyl, phenyl-C.sub.1-C.sub.4-alkyl, C.sub.2-C.sub.6-alkenyl or C.sub.2-C.sub.6-alkynyl, or R.sup.1 and R.sup.2 together are a C.sub.3-C.sub.11-alkylene group; R.sup.3 and R.sup.4 independently of one another are hydrogen, C.sub.1-C.sub.6-alkyl, C.sub.1-C.sub.4-alkoxy-C.sub.1-C.sub.4-alkyl, C.sub.5-C.sub.6-cycloalkyl, phenyl, phenyl-C.sub.1-C.sub.4-alkyl, C.sub.2-C.sub.6-alkenyl or C.sub.2-C.sub.6-alkynyl, or R.sup.3 and R.sup.4 together are a C.sub.4-C.sub.6-alkylene group; by adding amino hardeners, and the curing takes place in the presence of a compound of the following formula II ##STR00002## in which at least one of the radicals R11, R12 and R13 is a hydrocarbon group having 1 to 10 C atoms, which is substituted with a hydroxyl group and optionally remaining radicals R11 to R13 are an unsubstituted hydrocarbon group having 1 to 10 C atoms.

Inventors: Yu; Miran (Ludwigshafen, DE), Klopsch; Rainer (Worms, DE)

Assignee: BASF SE

International Classification: C08L 63/00 (20060101); C08G 59/50 (20060101)

Expiration Date: 2019-11-04 0:00:00