IN383756: A process for the preparation of an aromatic tetramine and polymers derived therefrom

Acces sibility Controls

The invention discloses a process for the preparation of an aromatic tetraamine, namely, {5,5’,6,6’-tetraamino-3,3,3’,3’-tetramethyl-1,1’-spirobi[indane]}. Further, the invention discloses a method for the preparation of polybenzimidazole polymers using the aforesaid aromatic tetraamine which exhibits intrinsic porosity.

Patent No:: IN383756
Application No:: 201711015473
Filing Date:: 02-05-2017
Issue Date:: 10-12-2021
Applicant:: CSIR-National Chemical Laboratory (CSIR-NCL), Pune
Inventor(s):: Vikas Kumar; Swaminathan Sivaram; Ver Avadhani Chilukuri
IPC Classification:: B01D 71/82
Country:: India

Disclaimer: Information available on this portal is sourced from various organizations and is provided for informational purposes only. Users are advised to verify details from the respective official sources.

Acces sibility Controls

Patents