Patent ID: 7364668

Claim:
A process for producing an amino composition by addition reaction between a polyamine selected from the group consisting of the following (a) to (c) and an unsaturated hydrocarbon compound in the presence of a strongly basic alkali metal catalyst to obtain an amino composition containing not more than 2% by weight of unreacted polyamine, which at least comprises the following steps: (A) a step of conducting addition reaction between the polyamine and an unsaturated hydrocarbon compound in the presence of a strongly basic alkali metal catalyst to obtain a reaction liquid containing an amino composition (addition reaction-step), (B) a step of removing unreacted polyamine from the reaction liquid containing an amino composition obtained by said addition reaction-step (A) in the form of a mixture of water and unreacted polyamine by steam stripping under reduced pressure in the range of 2 to 50 mmHg to obtain an amino composition wherein the content of unreacted polyamine is not more than 2% by weight (steam stripping-step); (a) polyamines represented by the formula (1) wherein A is a phenylene group or a cyclohexylene group, H 2 N—CH 2 —A—CH 2 —NH 2 (1) (b) polyamines represented by the formula (2) wherein n is 2 to 5, H 2 N—(CH 2 CH 2 NH) n —H (2) (c) cyclic aliphatic polyamines having at least nine carbon atoms, at least two amino groups and at least three active hydrogen atoms derived from said amino groups.