Patent ID: 8168296

Claim:
A curing agent composition comprising (a) at least one benzylated polyalkylene polyamine and (b) at least one multifunctional amine; wherein the at least one benzylated polyalkylene polyamine has the formula: wherein R A is benzyl; R C is benzyl or hydrogen; R B , R D , and R E are hydrogen atoms; n is 1, 2, 3, or 4; and wherein the at least one multifunctional amine comprises at least one member selected from the group consisting of ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA), tetraethylenepentamine (TEPA), pentaethylenehexamine (PEHA), propylenediamine, dipropylenetriamine, tripropylenetetramine, N-3-aminopropyl ethylenediamine (Am3), N,N′-bis(3-aminopropyl) ethylenediamine (Am4), N,N,N′-tris(3-aminopropyl) ethylenediamine (Am5); N-3-aminopropyl-1,3-diaminopropane, N,N′-bis(3-aminopropyl)-1,3-diaminopropane, N,N,N′-tris(3-aminopropyl)-1,3-diaminopropane, and any combination thereof.