Aromatic polyimides derived from aromatic dianhydrides and...

C - Chemistry – Metallurgy – 08 – G

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C08G 73/10 (2006.01) H05K 1/03 (2006.01) H05K 3/28 (2006.01)

Patent

CA 2057408

PE-0146 TITLE AROMATIC POLYIMIDES DERIVED FROM AROMATIC DIANHYDRIDES AND CHLORINATED AROMATIC DIAMINES ABSTRACT Aromatic homopolyimide and copolyimide films derived from an aromatic dianhydride and a chlorinated aromatic diamine such as 2-chloro-p-phenylene diamine and 2,2'-dichloro-4,4'-diaminodiphenyl ether are described. The films have low water absorption, high elastic modulus and elongation and can be heat-processed without embrittlement.

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