Patent ID: 8664445

Claim:
A method for providing an amine with formula (R 1 R 2 NR 3 ) 2 NR 4 wherein each of R 1 and R 2 are chosen from the group consisting of a methyl group, an ethyl group, an iso-propyl group and an n-propyl group; R 3 is an alkoxyalkyl group chosen from the group consisting of —CH 2 CH 2 OCH 2 CH 2 —, —CH 2 CH 2 OCH 2 CH 2 CH 2 —and —CH 2 CH 2 CH 2 OCH 2 CH 2 CH 2 —; R 4 is chosen from the group consisting of a hydrogen, a methyl group, an ethyl group, an iso-propyl group, an n-propyl group and a group with formula R 1 R 2 NR 3 , the method comprising the steps: (α)reacting R 1 R 2 NR 3 (OH) with ammonia, thereby providing a mixture comprising (R 1 R 2 NR 3 ) 2 NR 4 ; (β) separating (R 1 R 2 NR 3 ) 2 NR 4 from said mixture.