| 摘要 |
<p>PURPOSE: To obtain a magneto-optical memory disk which requires low output for writing by tightly joining a composite body of a base layer/dielectric layer/ recording layer/dielectric layer to a plastic layer with a flexible adhesive foam layer which is thermally stable and has resistance against a plasticizer and solvent resistance. CONSTITUTION: Two composite bodies each comprising having a structure of base layer 1/dielectric layer 2/recording layer 3/dielectric layer 2 are positioned opposite to each other with the recording layers 3, 3 inside and are tightly joined all over with a flexible adhesive foam layer 4. The flexible adhesive foam layer has thermal stability from -40 deg.C to 150 deg.C and is stable against both of a plasticizer and a solvent. By this constitution, the laser output necessary for writing to record data can be significantly decreased compared to the output for writing in a magneto-optical disk having layers bonded with a liquid adhesive.</p> |
