| abstract |
A photosensitive polymeric material comprising an oxygen, sulfur, phosphorus, nitrogen, halogen or coordination compound forming aromatic nucleus-containing polymer bonded by coordination bonding to an organic or inorganic salt of a metal from Groups IB, IIB, VIB, VIIB, and VIIIB of the Periodic Table. Typically, nylon or a polyester film is immersed in a solution of a metal salt, such as cupric halide, to effect molecular dispersion thereof on said polymer and formation of a coordination bonded complex therebetween. Numerous other polymers, metal compounds and dispersion-bonding methods are also disclosed. Color or absorptivity change is then produced by irradiation. Some of the complexed polymer materials are heat sensitive and/or reversible in their photo and heat sensitivity. Color changes may be fixed in some materials after irradiation by other treatment steps. Selective treatment with chemical reagents or dyestuffs is also possible following irradiation. |