Patent ID: 11926707
Assignee: WUHAN UNIVERSITY OF TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  H  Y | IPC B  C  H

Claim 2:
3. The method of claim 1, wherein in 1), the diamine monomer is at least one of 4,4′-diaminodiphenyl ether, 2,2-bis(4-(4-aminophenoxy)phenyl)propane, 4,4′-diaminodiphenyl sulfone, 4,4′-diaminodiphenylmethane and m-phenylenediamine; and the dianhydride monomer is at least one of pyromellitic dianhydride, 3,3′,4,4′-diphenyl ether tetracarboxylic dianhydride, 3,3′,4,4′-benzophenonetetracarboxylic dianhydride, 3,3′,4,4′-biphenyl tetracarboxylic dianhydride and 4,4′-(hexafluoroisopropylidene)phthalic anhydride.