Information recording medium
AssigneeFuji Photo Film Co., Ltd.
InventorsMasao Yabe, Younosuke Takahashi
Life of this patent
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Abstract
Improvement in an information recording medium comprising two disc-shaped substrates, said two substrates being combined with each other directly or via ring-shaped spacers by an adhesive, and a recording layer for writing or reading information with laser beam which is provided on the inner surface of at least one substrate, wherein a layer of chlorinated polyolefin is provided between the substrate and the recording layer and further on the area where the substrate is combined with another substrate or the spacers, and said adhesive is a UV-curable epoxy adhesive which is arranged on the chlorinated polyolefin layer, optionally, via a primer layer.
Claims11
In an information recording medium comprising two disc-shaped substrates, said two substrates being combined with each other directly or via a ring-shaped inner spacer and a ring-shaped outer spacer by means of an adhesive, and a recording layer for writing or reading information with laser beam which is provided on the inner surface of at least one substrate,
- the improvement wherein a layer of chlorinated polyolefin is provided between the substrate and the recording layer and further on the area where the substrate is combined with another substrate or the spacers, and said adhesive is an ultraviolet-curable epoxy adhesive which is arranged on the chlorinated polyolefin layer.
In an information recording medium comprising two disc-shaped substrates, said two substrates being combined with each other directly or via a ring-shaped inner spacer and a ring-shaped outer spacer by means of an adhesive, and a recording layer for writing or reading information with laser beam which is provided on the inner surface of at least one substrate,
- the improvement wherein a layer of chlorinated polyolefin is provided between the substrate and the recording layer and further on the area where the substrate is combined with another substrate or the spacers, and said adhesive is an ultraviolet-curable epoxy adhesive which is arranged on the chlorinated polyolefin layer via a primer layer.
Dependencies are inferred from the claim text.