Title:
POLARIZING FILM EQUIPPED WITH ADHESIVE LAYER HAVING SEPARATOR
Document Type and Number:
WIPO Patent Application WO/2023/022027
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a polarizing film equipped with an adhesive layer that has a separator, the film being conductive and achieving both a separator that can easily be separated and an adhesive layer that is reworkable. This polarizing film equipped with an adhesive layer that has a separator is characterized in that: an adhesive layer equipped with a separator, where the adhesive layer is provided over the separator, is disposed on one side or on both sides of a polarizing film; the separator comprises a mold release layer over a substrate film; the mold release layer contains a reactive silicone resin that comprises a reactive functional group and a non-reactive silicone resin with a weight-average molecular weight of at least 400,000; relative to 100% by mass of the total content of the reactive silicone resin and the non-reactive silicone resin, the reactive silicone resin content is 50–70% by mass and the non-reactive silicone resin content is 30–50% by mass; the elastic modulus of the mold release layer is less than 1.5 MPa; the adhesive layer is disposed over the mold release layer; the adhesive layer contains a conductive agent; and the adhesive layer contains a base polymer that contains less than 0.5% by mass of carboxy-group-containing monomers as monomer units.
Inventors:
MORIMOTO YU (JP)
MOTOOKA SAKINA (JP)
HANDA ITARU (JP)
MOTOOKA SAKINA (JP)
HANDA ITARU (JP)
Application Number:
PCT/JP2022/030122
Publication Date:
February 23, 2023
Filing Date:
August 05, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; B32B27/00; C09J7/38; C09J7/40; C09J9/02; C09J201/08
Domestic Patent References:
| WO2020179509A1 | 2020-09-10 |
Foreign References:
| JP2017170672A | 2017-09-28 | |||
| JP2021080422A | 2021-05-27 | |||
| JP2014129508A | 2014-07-10 | |||
| JP2008254207A | 2008-10-23 | |||
| JP2012137567A | 2012-07-19 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
Download PDF: