2,2-Bis[(2-halo-4-aminophenoxy)phenyl]-hexafluoropropane

Details 2,2-Bis[(2-halo-4-aminophenoxy)phenyl]-hexafluoropropane 2,2-Bis[(2-halo-4-aminophenoxy)phenyl]-hexafluoropropane

1984-02-17

1985-06-04

Lee, Lester L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C 8748

Patent

active

045216231

ABSTRACT:
There are provided the aromatic diamines 2,2-bis-[(2-halo-4-aminophenoxy)-phenyl]hexafluoropropane, where the attached ortho halogen is preferably chlorine, and 4,4'-bis(4-aminophenoxy)biphenyl, as novel monomers for polyimide polymerizations. The former, when reacted with 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride, provides a polyimide having exceptional high-temperature performance. The latter diamine is a low-cost monomer for polyimide production.

REFERENCES:
patent: 3895064 (1975-07-01), Brode et al.
patent: 3897497 (1975-07-01), Brode et al.
patent: 3988374 (1976-10-01), Brode et al.
patent: 4196144 (1980-04-01), Darms

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