Aromatic diamine and polyimide, and preparation process of same

Details Aromatic diamine and polyimide, and preparation process of same Aromatic diamine and polyimide, and preparation process of same

1994-06-02

1995-04-25

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

564315, 564328, 564426, 564417, C07C21790

Patent

active

054100844

ABSTRACT:
A polyimide comprising a requisite structural unit having one or more recurring structural units of the formula: ##STR1## such as the structural units of the formula ##STR2## Further, the present invention relates to a novel aromatic diamine which has a perfluoro radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same.
The polyimide can have an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance.

REFERENCES:
patent: 5077436 (1991-12-01), Yoshikawa et al.

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