US 12,115,762 B2
Decorative sheet and decorative material using same
Satoshi Furuta, Asaka (JP); and Mayuko Komurasaki, Misato (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Appl. No. 17/762,454
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
PCT Filed Sep. 23, 2020, PCT No. PCT/JP2020/035862
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/065637, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 2019-181066 (JP), filed on Sep. 30, 2019.
Prior Publication US 2022/0347987 A1, Nov. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 27/20 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01)
CPC B32B 27/20 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2264/1022 (2020.08); B32B 2307/4026 (2013.01); B32B 2307/412 (2013.01); B32B 2307/42 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/732 (2013.01); B32B 2451/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A decorative sheet comprising at least a substrate and a surface protective layer, wherein the surface protective layer contains an ultraviolet absorber, and the substrate contains white pigment particles, and wherein
the white pigment particles are titanium oxide particles having a coating containing Al element and Si element and formed on part or the whole of their surfaces, and contain Ti, Al and Si elements in a mass ratio defined in the following (Condition 1), and
a water vapor transmission rate of the decorative sheet satisfies the following (Condition 2):
(Condition 1)
when Ti is taken as 1,
Al is not less than 0.02 and less than 0.20, and Si is more than 0.002 and not more than 0.070,
(Condition 2)
a water vapor transmission rate of the decorative sheet when measured in accordance with Testing Methods for Determination of the Water Vapor Transmission Rate of Moisture-Proof Packaging Materials, Dish Method, defined in JIS Z0208:1976 is not less than 0.75 g/m2·24 h and not more than 45 g/m2·24 h.