INFORMATION RECORDING MEDIUM

PURPOSE:To prevent the deformation of the substrate of an information recording medium due to moisture and the deterioration of the recording layer by using transparent plastics as the material of the substrate of the recording medium suitable for writing and reading with laser light and by graft-po...

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Bibliographische Detailangaben
Hauptverfasser:	MASUDA TOSHIYUKI, NARUO KIYOUICHI
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	PURPOSE:To prevent the deformation of the substrate of an information recording medium due to moisture and the deterioration of the recording layer by using transparent plastics as the material of the substrate of the recording medium suitable for writing and reading with laser light and by graft-polymerizing a monomer which gives water repellency on a surface of the substrate opposite to the recording layer. CONSTITUTION:A recording layer of a metal (alloy) such as Te, In or Bi is formed on one side of a transparent plastic sheet, and a water-repellent layer is formed on the other side by graft-polymerizing a monomer contg. Si or F such as vinyltrichlorosilane or fluorinated decyl acrylate. The graft polymn. is carried out by bringing vapor of said monomer into contact with the surface of the substrate activated by glow discharge. Thus, the deformation of the substrate due to moisture and the deterioration of the recording layer due to corrosion (oxidation) are prevented.