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Title:
LAYERED BODY
Document Type and Number:
WIPO Patent Application WO/2020/158175
Kind Code:
A1
Abstract:
Provided is a layered body having a surface protective film or a reinforcing film layered on a carrier sheet, wherein the base material surface of the surface protective film or the reinforcing film does not lift readily from the adhesive layer of the carrier sheet, when being adhered continuously onto a member via a roll-to-roll process. This layered body is a layered body of five or more layers comprising a resin film (1), an adhesive layer (1), a resin film (2), an adhesive layer (2), and a resin film (3), in this order, wherein the resin film (2) and the adhesive layer (2) have been layered directly on one another, and the adhesive force is 1 gf/25 mm or greater when releasing the adhesive layer (2) from the resin film (2) at a release speed of 30 mm/minute, a release angle of 180 degrees, and under an environment in which the humidity is 50% RH and the temperature is 23°C.

Inventors:
OCHI GENKI (JP)
NAKANO TAKESHI (JP)
Application Number:
PCT/JP2019/047248
Publication Date:
August 06, 2020
Filing Date:
December 03, 2019
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B27/00; B32B7/022; C09J7/38; C09J201/00
Domestic Patent References:
WO2018092904A12018-05-24
Foreign References:
Other References:
"Introduction to Adhesion Science (Part 2)", THREEBOND TECHNICAL NEWS, no. 6, 1 April 1983 (1983-04-01), pages 1 - 7, XP055728042
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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