Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product
Reexamination Certificate
2008-04-22
2008-04-22
Angebranndt, Martin (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Holographic process, composition, or product
C430S002000, C359S003000
Reexamination Certificate
active
10470771
ABSTRACT:
An object of the present invention is to provide a hologram recording material composition comprising a radical polymerizable compound being solid at an ordinary temperature and having a 9,9-diarylflourene skeleton, a polymeric binder and a plasticizer, the composition being excellent in transparency and diffraction efficiency, which are characteristics required for a hologram.The hologram recording material composition comprises a thermoplastic resin (A) which is soluble in a solvent, a radical polymerizable compound (B) which is solid at an ordinary temperature and at ordinary pressure and has the 9,9-diarylfluorene skeleton and at least one radical polymerizable unsaturated double bond, a plasticizer (C) and a photopolymerization initiator (D). A weight percentage ratio of the thermoplastic resin (A), the radical polymerizable compound (B) and the plasticizer (C), (A):(B):(C) is 10 to 80:10 to 80:10 to 80. A refractive index of the radical polymerizable compound (B) is larger than a weighted mean of that of the thermoplastic resin (A) and that of the plasticizer (C).
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Matoba Yasuo
Matsuo Takashi
Saika Tetsuyuki
Tanigawa Hideo
Yokoyama Kazunori
Angebranndt Martin
Cheng Law Group PLLC
Daiso Co. Ltd.
National Institute of Advanced Industrial Science and Technology
Tanigawa Hideo
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