Patent ID: 6465601
Filing Date: 2002-10-15
Classification: C08G

Abstract:
A compound or mixture of compounds active as accelerators for curable epoxy and polyurethane systems, characterized in that the compound or mixture of compounds have been prepared by means of a transamination reaction by reacting(a) a substituted phenolic compound (Mannich base) having at least one substituent of the formula R1(R2)Nâ€”CH(R3)â€”â€ƒâ€ƒ(A), â€ƒwherein R1 and R2 are each independently of the other a linear or branched C1-C4 alkyl, and R3 is hydrogen, methyl, ethyl or phenyl, with (b) a compound of the formula R4(R5)Nâ€”CnH2nâ€”(NHâ€”CnH2n)qâ€”NH2â€ƒâ€ƒ(B), â€ƒwherein R4 and R5 are each independently of the other a C1-C6 alkyl, or together form a radical of formula â€”(CH2)5â€” or â€”(CH2)2â€”Oâ€”(CH2)2â€”, n is an integer from 2 to 5, and q is zero, 1, 2, or 3, and the compound obtained or the compounds present in the mixture obtained has/have on average, per molecule, at least one substituent of formula (R4)(R5)Nâ€”CnH2nâ€”(NHâ€”CnH2n)qâ€”NHâ€”CH(R3)â€”, â€ƒwherein the substituents R3, R4, R5, n and q have the meanings given above.