G - Physics – 11 – B
Patent
G - Physics
11
B
117/142, 42/2, 2
G11B 11/12 (2006.01) G11B 7/24 (2006.01) G11B 7/244 (2006.01) G11B 7/248 (2006.01)
Patent
CA 2026758
Abstract of the Disclosure An erasable optical data storage medium and a process for preparation thereof. The medium comprises a substrate and a dual layer formed on the substrate, the dual layer having characteristic features that: (A) one layer of the dual layer is a first layer comprising a first resin which exhibits rubbery elasticity at 20°C and a first dyestuff having absorption in a visible light or near infrared ray region; (B) the other layer of the dual layer is a second layer comprising a second resin which exhibits a glass state at 20°C, exhibits a rubbery state at an elevated temperature and can be reversibly transformed between the glass state and the rubbery state and a second dyestuff having absorption in a visible light or near infrared ray region; and (C) one of the above first resin and the above second resin is a UV curable resin and the other of these two resins is a different UV curable resin or a thermosetting resin.
Daido Takahiro
Iwata Kaoru
Kawaguchi Takeyuki
Sasaki Katsushi
Shiro Takashi
Daido Takahiro
Iwata Kaoru
Kawaguchi Takeyuki
Sasaki Katsushi
Shiro Takashi
LandOfFree
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