Polyimides, a process for their preparation and their use

Details Polyimides, a process for their preparation and their use Polyimides, a process for their preparation and their use

C - Chemistry, Metallurgy

08

G

117/183, 402/218

C08G 73/10 (2006.01) G03F 7/038 (2006.01)

Patent

CA 1258946

Abstract: Polyimides, a process for their preparation and their use Homopolyimides and copolyimides which contain struc- tural elements of the formula I (I) Image in which R1 and R2 are halogen, nitro, aryl, aryloxy, alkyl or alkoxy, m is 0 or a number from 1 to 4, n is 0 or a number from 1 to 3 and p is 0, 1 or 2, the free carbonyl groups are bonded in the ortho-position relative to one another and R is a divalent aromatic radical which is substituted by at least one alkyl group or aralkyl group, are autophotocross- linkable. They are suitable for the production of protective films and photographic relief images.

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