TECHNOLOGY FOCUS - POLYMERS - Preferred Processes: A printing plate is obtained by molding a photosensitive resin composition into sheet or cylindrical form, and crosslinking-curing molded composition by irradiating a light or an electron beam. An electroconductive layer is obtained by transferring electroconductive ink on printing plate, drying and removing solvent in electroconductive ink, irradiating light, curing transferred ink, and fixing on printing plate. Similarly, organic light emitting layer, liquid crystal alignment film, black matrix, coloring layer, photoelectric conversion layer, thin film semiconductor pattern, photosensitive layer, electron accepting organic layer/electron donating organic layer, bank and polysilane thin film, are obtained by transferring organic light emission ink, liquid crystal oriented meniscus, film composition, coloring layer-forming ink, photoelectric conversion layer-forming ink, thin film semiconductor pattern-forming ink, photosensitive layer-forming ink, electron accepting organic layer/electron donating organic layer-forming ink, bank-forming composition and polysilane solution respectively. Preferred Compounds: The polyisocyanate compound is diisocyanate compound or aromatic diisocyanate compound. The polymer is preferably of formula (3) or (4): CH2=C(-Rs)-C(=O)-O-Rr-NH-C(=O)-O-Rp-O-(C(=O)-NH-Rq-NH-C(=O)-O-Rp-O)l-C(=O)-NH-Rr-O-C(=O)-C(Rt)=CH2, or CH2=C(Rs)-C(=O)-Ru-O-C(=O)-NH-Rq-NH-C(=O)-(O-Rp-O-C(=O)-NH-Rq-NH-C(=O))m-O-Ru-O-C(=O)-C(-Rt)=CH2.Rp=residue removing both terminal hydroxyl group from polycarbonate diol;Rq=residue removing isocyanate group from diisocyanate compound;Rr=alkyl portion of isocyanato alkyl acrylate and/or an isocyanato alkyl methacrylate;Rt,Rs=H or methyl group;andl,m=1 or more.Preferred Composition: The photosensitive resin composition contains the polymer, inorganic fine particles, a photoinitiator, and an organic compound having number average molecular weight of less than 5000. Preferred Properties: The polycarbonate diol has number average molecular weight of 300-50000. The polymer has number average molecular weight of 1000-100000. EXAMPLE - Diethylene glycol (in g) (214) and ethylene carbonate (186) were stirred with tetra butoxy titanium (0.17) at 70 degrees C under nitrogen atmosphere, and refluxed at 145-150 degrees C and pressure of 2.5-3.5 kPa for 22 hours. The solvent was distilled, and internally reacted at 170 degrees C and pressure of 0.1 kPa for 5 hours to obtain viscous liquid of polycarbonate diol (174) having number average molecular weight of 1843. The obtained compound and monobutyl phosphoric acid (0.05) were stirred with tolylene diisocyanate (4.63), 2,6-di-tert-butyl-4-methyl phenol (0.07), adipic acid (0.01) and di-n-butyl tin dilaurate (0.006) at 80 degrees C for 3 hours, and the hydroxyl group of polycarbonate diol was connected by urethane bond to obtain polymer. The obtained polymer was used to form photosensitive resin composition.