| 摘要 |
PURPOSE:To improve heat resistance and the adhesiveness to the substrate of a recorder by using aluminum phosphate as a material for forming a rugged pattern on said substrate. CONSTITUTION:A gel-like product is obtd. by mixing intimately 14g aluminum chloride 10g phosphoric acid and 100ml ethyl alcohol at 0 deg.C. Such product is diluted in water and is coated on a patterned master disk 1 to form a coated film 2 for transfer film having about 0.1mm. thickness. The film is then rested at a room temp. and is dried to the touch; thereafter the film is heated to about 100 deg.C to form a solid pattern transfer material film 2' consisting of solid aluminum phosphate. An epoxy adhesive agent is coated thereon to form an adhesive layer 3, to which the substrate 4 is adhered and thereafter the master disk 1 is stripped thereto and the optical disk substrate transferred with the pattern is obtd. The aluminum phosphate which is the pattern transfer material is an org. material and therefore even if a laser beam is irradiated thereon for a long period, the deformation of the pattern does not arise and the effect of improving the heat resistance is obtd. |
