Ultraviolet-curable composition and optical recording
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United States of America Patent
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Aug 2, 2005
Grant Date -
Aug 30, 2001
app pub date -
Jan 24, 2001
filing date -
Jan 28, 2000
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Abstract
The present invention provides an ultraviolet-curable composition having satisfactory protective performance even in endurance testing at high temperature and high humidity in an optical recording medium having for its reflective film Ag or a metal and/or alloy having Ag for its main component, and an optical recording medium in which it is applied. A cured film of an ultraviolet-curable composition, for which the pH value of a 1 wt % methanol solution of said ultraviolet-curable composition is within the range of 4.5 to 6.8, is coated onto a reflective film in the form of a protective film.
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