Title:
粘着シート
Document Type and Number:
Japanese Patent JP6686609
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive sheet having high adhesion between a surface protection layer and a film layer.SOLUTION: A pressure-sensitive adhesive sheet 1 comprises a film layer 3, a pressure-sensitive adhesive layer 4 formed on one surface of the film layer 3, and a surface protection layer 2 formed on the other surface of the film layer 3. The film layer 3 includes a first ultraviolet absorber and as a resin material polypropylene having high stereoregularity; the pressure-sensitive adhesive layer 4 includes a second ultraviolet absorber; and the surface protection layer 2 includes as a third ultraviolet absorber a triazine-based ultraviolet absorber. The surface protection layer 2 preferably includes an acrylic urethane resin and the thickness of the surface protection layer 2 is preferably not less than 6 μm to not more than 15 μm. The film layer 3 preferably contains not less than 95 wt% to not more than 100 wt% of polypropylene having high stereoregularity in the resin material and the thickness of the film layer 3 is preferably not less than 60 μm to not more than 100 μm.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
Yuichi Nanbu
Takashi Tominaga
Takashi Tominaga
Application Number:
JP2016062614A
Publication Date:
April 22, 2020
Filing Date:
March 25, 2016
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
C09J7/29; B32B27/00; B32B27/18; B32B27/32; C09D7/48; C09D175/04; C09J7/24; C09J11/06; C09J201/00
Domestic Patent References:
| JP2013022906A | ||||
| JP2013249346A | ||||
| JP2003213230A | ||||
| JP2012107162A | ||||
| JP2008114560A |
Foreign References:
| WO1997025388A1 |
Attorney, Agent or Firm:
Ichi Hirose
Toru Miyasaka
Toru Miyasaka