Title:
REINFORCING FILM
Document Type and Number:
WIPO Patent Application WO/2020/066842
Kind Code:
A1
Abstract:
A reinforcing film (10) comprises a film substrate (1) and an adhesive layer (2) fixed/layered thereon. The adhesive layer is a photo-curable composition including a (meth)acrylic based polymer, a (meth)acrylic based oligomer, and a multifunctional compound. It is preferable that, when the adhesive layer is divided into three equal parts in the direction of thickness and the region that is furthest from the substrate side is taken as the surface layer region, the abundance of the multifunctional compound in the surface layer region accounts for at least 50% of the abundance of the multifunctional compound throughout the total thickness direction, and the abundance of the (meth)acrylic based oligomer in the surface layer region accounts for no more than 31% of the abundance of the (meth)acrylic based oligomer throughout the total thickness direction.
Inventors:
NAKANO TAKESHI (JP)
KATAOKA KENICHI (JP)
YONEKAWA YUYA (JP)
FUJIYAMA YUJI (JP)
YASUE TOMOHIRO (JP)
IKEGAMI KENJI (JP)
KATAOKA KENICHI (JP)
YONEKAWA YUYA (JP)
FUJIYAMA YUJI (JP)
YASUE TOMOHIRO (JP)
IKEGAMI KENJI (JP)
Application Number:
PCT/JP2019/036793
Publication Date:
April 02, 2020
Filing Date:
September 19, 2019
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
SOKEN KAGAKU KK (JP)
SOKEN KAGAKU KK (JP)
International Classes:
C09J133/04; B32B27/00; B32B27/30; C09J4/00; C09J7/24; C09J7/25; C09J7/38; C09J147/00
Domestic Patent References:
| WO2015163115A1 | 2015-10-29 |
Foreign References:
| JP2018127539A | 2018-08-16 | |||
| JP2012153901A | 2012-08-16 | |||
| JP2013185007A | 2013-09-19 | |||
| JP2017132977A | 2017-08-03 |
Attorney, Agent or Firm:
SHINTAKU, Masato (JP)
Download PDF: