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US 5,573,831 AGranted
Optical recording medium
AssigneeMitsui Toatsu Chemicals, Inc.
InventorsYuko Suzuki, Shin Aihara, Sumio Hirose
Life of this patent
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Abstract
An optical recording medium comprising a transparent substrate; a recording layer on the transparent substrate; a metal reflective layer; and one or more protective layers. These layers are laminated successively on the transparent substrate. The outermost protective layer is formed of an ultraviolet curable resin containing an organic filler and/or an inorganic filler having water absorbency and/or oil absorbency. The protective layer has a printable surface permitting writing characters with writing instruments or ink jet printers.
Claims33
An optical recording medium comprising:
- a transparent substrate;
- a recording layer on the transparent substrate;
- a metal reflective layer;
- and
- at least one protective layer having a thickness of 1 to 100 .mu.m;
- these layers being laminated successively on the transparent substrate, the outermost protective layer being formed of an ultraviolet curable resin containing an organic filler and/or an inorganic filler having water absorbency and/or oil absorbency, said filler being present in an amount of from 1 to 80 parts by weight so that the protective layer has a printable surface.
3 more elements
Dependencies are inferred from the claim text.