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

C - Chemistry, Metallurgy

07

C

C07C 217/90 (2006.01) C07C 225/22 (2006.01) C07C 323/31 (2006.01) C08G 73/10 (2006.01) H05K 1/00 (2006.01) H05K 1/03 (2006.01)

Patent

CA 2093480

This invention relates to fluorine containing polyimide, a novel aromatic diamine which has a perfluoroalkyl radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: Image such as the structural units of the formula Image . 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 present invention can provide polyimide which has an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.

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