Volume hologram laminate

Details Volume hologram laminate Volume hologram laminate

2004-08-16

2010-10-26

Chevalier, Alicia (Department: 1783)

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

C428S041800, C428S041900, C428S042100, C430S001000, C430S002000, C359S003000

Reexamination Certificate

active

07820263

ABSTRACT:
The present invention relates to a volume hologram laminate with low generation of spotty hologram flaws in the volume hologram layer even when kept under pressurized conditions during storage, and to a volume hologram laminate-fabricating label. The volume hologram laminate1of the invention has a first adhesive layer3, a volume hologram layer5, a second adhesive layer4and a surface protective film6formed in that order on a substrate1, wherein the volume hologram layer is a hologram recording in a recording material comprising a matrix polymer and a photopolymerizable compound, having a glass transition point of 30° C.-70° C. and a dynamic storage elastic modulus of 5×105Pa-5×107Pa at 50° C. when measured at 6.28 rad/s, and the second adhesive layer has a dynamic storage elastic modulus of no greater than 5×104Pa or at least 2.5×105Pa at 50° C. when measured at 6.28 rad/s.

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Translation of JP 07-089226.

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