Evonik Operations Gmbh

Daniel Iliev Totev

Gamini Ananda Vedage

Michael Ian Cook

Shiying Zheng

Marcelo Rufo

Compositions and curing agents comprising a benzylated Mannich base composition. The benzylated Mannich base composition includes a reaction product of (a) a substituted phenolic compound having at least one substituent of formula (I): wherein Ris each independently a linear or branched alkyl group having 1 to 4 carbon atoms, and Ris hydrogen, methyl, ethyl or phenyl, with (b) a benzylated polyalkylene polyamine (II): wherein Ris substituted or unsubstituted benzyl; Ris each independently R, or a hydrogen atom, or a group selected from C-Clinear, cyclic, and branched alkyl, alkenyl, and alkaryl groups; X, Y, and Z are independently selected from C-Calkylene, and cycloalkylene groups; y is an integer from 0 to 7, and z is an integer from 0 to 4; and, optionally, (c) a multifunctional amine. Amine-epoxy compositions and articles produced from these compositions are also disclosed.

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De Meern, Netherlands

Daniel Iliev Totev