Title:
PRESSURE-SENSITIVE ADHESIVE LAYER, ONE-SIDE-PROTECTED POLARIZING FILM HAVING PRESSURE-SENSITIVE ADHESIVE LAYER, IMAGE DISPLAY DEVICE, AND CONTINUOUS PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/181715
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a pressure-sensitive adhesive layer in which a defect due to a nano-slit can be inhibited, and which has an excellent antistatic function and reworkability; and a one-side-protected polarizing film having a pressure-sensitive adhesive layer which has that pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer according to the present invention contains a (meth)acrylic polymer as a base polymer, wherein the (meth)acrylic polymer contains, as monomer units, an alkyl(meth)acrylate including an alkyl group having 2-12 carbon atoms, and methyl(meth)acrylate. The pressure-sensitive adhesive layer is characterized by satisfying formula (1). Abs(a): The peak absorbance derived from the antisymmetric stretching vibration of the C-O-C bond of methyl(meth)acrylate, in an IR measurement of the pressure-sensitive adhesive layer using a total reflection measurement method. Abs(b): The peak absorbance derived from the antisymmetric stretching vibration of the C-O-C bond of the alkyl(meth)acrylate, in an IR measurement of the pressure-sensitive adhesive layer using the total reflection measurement method. Abs(c): The lowest absorbance within the range of 800-900 cm-1, in an IR measurement of the pressure-sensitive adhesive layer using the total reflection measurement method.
Inventors:
MORIMOTO YU (JP)
TOYAMA YUSUKE (JP)
FUJITA MASATO (JP)
EHARA SUGURU (JP)
TOYAMA YUSUKE (JP)
FUJITA MASATO (JP)
EHARA SUGURU (JP)
Application Number:
PCT/JP2018/013242
Publication Date:
October 04, 2018
Filing Date:
March 29, 2018
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B27/00; C09J133/08; B32B27/30; C09J7/29; C09J7/38; C09J11/04; C09J11/06; G02B5/30
Domestic Patent References:
| WO2016157921A1 | 2016-10-06 | |||
| WO2010126054A1 | 2010-11-04 | |||
| WO2016052549A1 | 2016-04-07 |
Foreign References:
| JP2014152319A | 2014-08-25 | |||
| JP2015010193A | 2015-01-19 | |||
| JP2011057794A | 2011-03-24 | |||
| JP2013104006A | 2013-05-30 | |||
| JP2016160417A | 2016-09-05 | |||
| JP2013177577A | 2013-09-09 | |||
| JP2013007029A | 2013-01-10 | |||
| JP2012247574A | 2012-12-13 | |||
| JP2017171703A | 2017-09-28 | |||
| JP2018053066A | 2018-04-05 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
Download PDF: