Patent ID: 11969694
Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
Field: Chemical engineering (Chemistry)
Classification: CPC B  Y | IPC B

Claim 5:
6. The method of claim 1, wherein the aliphatic diamine comprises at least one selected from the group consisting of a piperazine, 4-aminopiperidine, 3-aminopyrrolidine, 1,4-diaminocyclohexane, 1,4-diaminomethylene-cyclohexane, 1,4-diazacycloheptane, 1,5-diazocane, hexahydropyrrolo[3,4-c]pyrrole, hexahydropyrrolo[3,4-b]pyrrole, 3,7-diaza-bicyclo[3.3.1]nonane, 2,5-diazabicyclo[2.2.2]octane, 3,8-diazabicyclo[3.2.1]octane, 2,5-diazabicyclo[2.2.1]heptane, ethylenediamine, 1,3-diaminopropane, 1,4-butanediamine, and 1,5-pentanediamine.