| abstract |
Homo- and copolyimides, the structural elements of the formula I <IMAGE> in which R 1 and R 2 are halogen, nitro, aryl, aryloxy, alkyl or alkoxy, m 0 or a number from 1-4, n 0 or a number from 1 to 3 and p represent 0, 1 or 2, the free carbonyl groups are bonded to one another in the ortho position and represent a divalent aromatic radical which is substituted by at least one alkyl group or aralkyl group, are autophoto-crosslinkable. They are suitable for the production of protective films and photographic relief images. |