Photocrosslinkable transparent adhesive material, transparent adhesive material layered body, and layered body for constituting optical device
AssigneeMitsubishi Chemical Corporation
InventorsShinya FUKUDA, Makoto INENAGA
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Abstract
Provided is a novel transparent adhesive material having low relative permittivity as well as excellent adhesive characteristics, whereby an olefinic polymer resin layer and an acrylic polymer adhesive layer can be suitably integrated. Suggested is a transparent adhesive material provided with an outermost surface layer containing an acrylic polymer (B) and a photocrosslinking initiator, and an intermediate layer containing an olefinic polymer (A), a crosslinking agent, and a photocrosslinking initiator, in which the intermediate layer contains a (meth)acrylate monomer as the crosslinking agent.
Claims4
A photocrosslinkable transparent adhesive material, comprising:
- an outermost surface layer comprising a photoreaction product of an acrylic polymer (B);
- and
- an adjacent intermediate layer comprising a photoreaction product of an olefinic polymer (A),
- wherein relative permittivity of the photocrosslinkable transparent adhesive material is 3.3 or less at a frequency of from 100 kHz to 1 MHz.
Dependencies are inferred from the claim text.