Polymer from (1) bis-imide, (2) allyloxy-phenyl maleimide and (3) diamine

An imido polymer comprising the polymerizate of:

• (a) at least one N,N'-bisimide having the formula:
• ##STR11## in which Y is H, CH.sub.3 or Cl, A is cyclohexylene, phenylene, 4-methyl-1,3-phenylene, 2-methyl-1,3-phenylene, 5-methyl-1,3-phenylene, 2,5-diethyl-3-methyl-1,4-phenylene, or a radical of the formula:
• ##STR12## in which T is a single valency bond or T is a group:
• ##STR13## and X is a hydrogen atom or a methyl, ethyl or isopropyl radical;
• (b) at least one diprimary diamine having the formula:
• H.sub.2 N--B--NH.sub.2 (II)
• in which B is one of the divalent radicals A, with the proviso that A and B present in the same monomer are identical or different;
• and
• (c) at least one copolymerizable unsaturated comonomer having the formula:
• ##STR14## in which the allyloxy or methallyloxy radical is in the ortho-, meta- or para-position relative to the benzene ring carbon atom bonded to the nitrogen atom.