| 摘要 |
PURPOSE:To enable the selection of forms according to the purpose in preventing radiation of heat rays in a selective permeable sheet wherein a thin metallic film layer, transparent dielectric layer and transparent protective layer respectively having specific thicknesses are laminated on the surface of an org. polymer by using a metallic alkoxide compd. in forming the intermediate dielectric layer. CONSTITUTION:A thin metallic film layer B having 40 to 300Angstrom thickness as well as a transparent dielectric layer C and transparent protective layer D having 200 to 3,000Angstrom thickness are laminated in order of A/B/C/B or A/B/C/B/D on at least on one surface of an org. polymer film A which is a light transmittable film permitting transmission of visible rays and reflecting IR light. Compd. such as titanium alkoxide, zirconium alkoxide, aluminum alkoxide and alkoxisilane, etc. are used as the metallic alkoxide compd. of the layer C. The compd. is dissolved in a solvent, and the soln. is coated with spin coating, gravier roll coater or the like and is dried. |
