WINDOW MATERIAL COMPOSED OF SYNTHETIC RESIN HAVING DEFROSTING PERFORMANCE AND ITS MANUFACTURE

PURPOSE:To provide window material composed of synthetic resin having defrosting performance excellent in durability, and also provide its manufacture which can mass-produce window material composed of synthetic resin stably at low cost. CONSTITUTION:A transparent film 1' which is composed of thermal plastic synthetic resin, and has a plurality of wires 3 and paired electrodes 4a and 4b attached over its surface wherein each aforesaid wire is coated with conductive paste so as to be hardened, is integrally laminated with a base plate section 7 composed of thermal plastic synthetic resin. In this case, the aforesaid window material composed of thermal plastic synthetic resin is manufactured as follows: the transparent films 1 and 1' on which the wires 3 and the electrodes 4a and 4b are formed by means of conductive paste in advance, are mounted within an injection molding metal mold in such a way that a coating surface 1'a is in contact with a cavity wall, and thermal plastic resin is then injected so as to be formed into the base plate section 7, so that the aforesaid window material can thereby be manufactured with the aforesaid components integrally laminated.