Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product
Reexamination Certificate
2006-03-01
2011-10-11
Angebranndt, Martin (Department: 1722)
Radiation imagery chemistry: process, composition, or product th
Holographic process, composition, or product
C430S002000, C430S280100, C359S003000
Reexamination Certificate
active
08034514
ABSTRACT:
The present invention relates to a volume phase hologram recording material excellent in transparency, sensitivity, low curing shrinkage, and transparency, a volume phase hologram recording medium, and a volume phase hologram. A photosensitive resin composition for volume phase hologram recording contains a low-molecular-weight solvent-soluble aromatic copolymer (A) having a structural unit of a divinyl aromatic compound and a structural unit of a monovinyl aromatic compound, a photoradical polymerizable compound (B) which is copolymerizable with the soluble aromatic copolymer (A), and a photopolymerization initiator (C) as essential components. The photosensitive resin composition further contains, one kind or more of a polymer binder (D) and a plasticizer (E), and the soluble aromatic copolymer (A) is incorporated in an amount of 5 to 60% by weight.
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Kawabe Masanao
Shichijo Yasuji
Tomari Kouhei
Angebranndt Martin
Edwards Angell Palmer & & Dodge LLP
Nippon Steel Chemical Co. Ltd.
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