Title:
偏光フィルム保護用積層体およびその製造方法
Document Type and Number:
Japanese Patent JP7145161
Kind Code:
B2
Abstract:
Provided is a laminated body for protecting a polarizing film, in which a photocurable resin layer comprising a radical polymerizable compound is laminated on a substrate film, wherein the laminated body for protecting a polarizing film is characterized in that: the thickness of the photocurable resin layer is 9 μm or less; the boric acid permeation in terms of boron atoms of the photocurable resin layer is 2.25 g/m2∙day or less; the adhesion force between the substrate film and the photocurable resin layer is 0.005-0.06 N/mm; and the root-mean-square surface roughness (rms) of the photocurable resin layer on the substrate film side, after the substrate film is separated from the photocurable resin layer, is 300 nm or less. There are thereby provided: a laminated body for protecting a polarizing film, the laminated body having exceptional surface smoothness and exceptional humidity and heat resistance even when the thickness of the photocurable resin layer is 9 μm or less; and a method for manufacturing said laminated body.
Inventors:
Emi Kawasaki
Saki Okayama
Takanori Isozaki
Saki Okayama
Takanori Isozaki
Application Number:
JP2019542259A
Publication Date:
September 30, 2022
Filing Date:
September 12, 2018
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
G02B5/30; B32B7/023
Domestic Patent References:
| JP2015518574A | ||||
| JP2016500832A |
Foreign References:
| WO2007142142A1 | ||||
| WO2017086270A1 | ||||
| WO2018038028A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Setouchi International Patent Firm
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