Composition for hologram-recording material,...

Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product

Reexamination Certificate

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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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Chemical structures (generated Dec. 2007) (8 pages).
International Search Report for PCT/JP02/00681 mailed on May 21, 2002.
Display Holography Handbook, p. 66 to 67 (Gyoin Shokan, 1985).
Optical Engineering Handbook, p. 351 to 353 (Asakura Shoten, 1986).
Multicomponent photopolymer systems for volume phase holograms and grating devices, W.J. Tomlinson et al., Applied Optics/vol. 15, No. 2/Feb. 1976.
European Search Report mailed Jul. 5, 2006.

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