Photosensitive mixture and photosensitive recording material with diazonium salt polycondensation product and free radical radiation polymerizable composition

Claim 1

A photosensitive mixture comprising (a) about 5% to 60% by weight of a photosensitive diazonium salt polycondensation product; (b) about 10% to 65% by weight of a compound that is polymerizable by a free-radical process, comprising at least two terminal ethylenically unsaturated groups and having a boiling point, at normal pressure, above 100° C.; (c) about 0.05% to 10% by weight of a polymerization initiator that by the action of actinic radiation forms free radicals; and (d) about 5% to 80% by weight of a polymeric binder that is insoluble in water, but soluble in organic solvents, wherein said diazonium salt polycondensation product is comprised of first recurring units and second recurring units that are linked by bivalent intermediate members derived from a carbonyl compound which is capable of condensation, (i) each of said first recurring units being derived from a diphenyl amine-4-diazonium salt compound which is unsubstituted or substituted by an alkyl group, an alkoxy group or a halogen atom represented by the formula (R 1 --R 3 --) q R 2 --N x X, in which X denotes an anion of a diazonium compound, q denotes an integer from 1 to 3, R 1 denotes an arylene group of the benzene or naphthalene series, R 3 denotes a single bond or one of the following groups: --(CH.sub.2).sub.q --NR.sup.4 --, --O--(CH.sub.2).sub.r --NR.sup.4 --, --S--(CH.sub.2).sub.r --NR.sup.4 --, --S--CH.sub.2 --CO--NR.sup.4, --O--R.sup.5 --O--, --O--, --S-- and --CO--NR.sup.4 --, q denoting an integer from 0 to 5, r denoting an integer from 2 to 5, R 4 denotes a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms, and R 5 denotes an arylene group having 6 to 12 carbon atoms; (ii) said second recurring units being diazonium group-free radicals of a phenol ether, an aromatic thioether or an aromatic hydrocarbon; and (iii) said diazonium salt polycondensation product containing an average number of 0.1 to 50 units of said second recurring units per 1 unit of said first recurring units.