US 11,840,055 B2
Construction member
Hidetoshi Abe, Yamagata (JP); and Koji Saito, Yamagata (JP)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Appl. No. 17/264,076
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Aug. 1, 2019, PCT No. PCT/IB2019/056586
§ 371(c)(1), (2) Date Jan. 28, 2021,
PCT Pub. No. WO2020/026199, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 2018-146457 (JP), filed on Aug. 3, 2018.
Prior Publication US 2021/0370641 A1, Dec. 2, 2021
Int. Cl. B32B 7/12 (2006.01); B32B 3/30 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01)
CPC B32B 7/12 (2013.01) [B32B 3/30 (2013.01); B32B 27/08 (2013.01); B32B 27/304 (2013.01); B32B 2264/0207 (2013.01); B32B 2264/0214 (2013.01); B32B 2264/302 (2020.08)] 10 Claims
OG exemplary drawing
 
1. A construction member comprising:
a decorative film comprising:
a transparent resin film having an embossed first surface and a second surface opposite the first surface, wherein an embossing depth of the first surface of the transparent resin film is less than the thickness of the transparent resin film and is from 1 μm to 80 μm,
a printed layer disposed on the second surface of the transparent resin film, and
a colored adhesive layer disposed on or above the printed layer; and
a pre-mask that is laminated to the decorative film and removed after application of the decorative film, wherein the pre-mask comprises:
a support film having a first surface and a second surface opposite the first surface, and
a pressure-sensitive adhesive layer having an uneven surface and being disposed on the first surface of the support film,
wherein the first surface of the transparent resin film of the decorative film and the uneven surface of the pressure-sensitive adhesive layer of the pre-mask face each other,
wherein the pressure-sensitive adhesive layer comprises:
tacky adhesive microspheres having a volume average particle size of 5 μm or greater and 150 μm or less sized to fit in recesses of the embossed first surface of the transparent resin film, and
a tacky adhesive binder.