US 12,338,634 B2
Transparent resin film, decorative board, and method for producing decorative board
Satoshi Furuta, Tokyo (JP); Ryo Fujii, Tokyo (JP); Tomomi Nakajima, Tokyo (JP); Yoshiaki Netsu, Tokyo (JP); Toshinaru Kayahara, Tokyo (JP); and Yosuke Sumida, Tokyo (JP)
Assigned to Dai Nippon Printing Co., Ltd., Tokyo (JP)
Appl. No. 17/283,679
Filed by Dai Nippon Printing Co., Ltd., Tokyo (JP)
PCT Filed Sep. 30, 2019, PCT No. PCT/JP2019/038603
§ 371(c)(1), (2) Date Apr. 8, 2021,
PCT Pub. No. WO2020/075563, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 2018-193827 (JP), filed on Oct. 12, 2018.
Prior Publication US 2021/0381248 A1, Dec. 9, 2021
Int. Cl. E04F 13/08 (2006.01); B32B 3/30 (2006.01); B32B 7/12 (2006.01); B32B 21/08 (2006.01); B44C 5/04 (2006.01)
CPC E04F 13/0871 (2013.01) [B32B 3/30 (2013.01); B32B 7/12 (2013.01); B32B 21/08 (2013.01); B44C 5/0469 (2013.01); E04F 13/0866 (2013.01); B32B 2250/02 (2013.01); B32B 2307/412 (2013.01); B32B 2307/71 (2013.01); B32B 2307/732 (2013.01); B32B 2451/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A decorative board comprising:
a substrate;
a picture layer;
an adhesive layer; and
a transparent resin film in an order in a thickness direction as stated below,
the transparent resin film for protecting the picture layer laminated on one side of the substrate, comprising at least:
a surface protective layer;
a transparent resin layer, and
an adhesion primer layer on a side opposite to the surface protective layer side of the transparent resin layer, wherein
the transparent resin film having a pattern of protrusions and depressions on the surface protective layer side and on the picture layer side,
the transparent resin film having a thickness at a depression of the pattern of protrusions and depressions of 140 μm or larger,
the transparent resin film containing an ultraviolet absorber,
the surface protective layer containing an oligomer having a radical polymerizable unsaturated group in the molecule, and
the picture layer does not have a pattern of protrusions and depressions synchronized to the pattern of protrusions and depressions of the picture layer side of the transparent resin film.