US 12,005,693 B2
Stone plastic composite (SPC) floor comprising decorative surface
Jiangang Song, Zhejiang (CN); Jiajin Fu, Zhejiang (CN); and Fuqing Liu, Zhejiang (CN)
Assigned to UNILIN BV, Wielsbeke (BE)
Appl. No. 17/781,192
Filed by FLOORING INDUSTRIES LIMITED, SARL, Bertrange (LU)
PCT Filed Sep. 25, 2019, PCT No. PCT/CN2019/107796
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/042425, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 201910828033.8 (CN), filed on Sep. 3, 2019.
Prior Publication US 2023/0356502 A1, Nov. 9, 2023
Int. Cl. B32B 7/12 (2006.01); B32B 9/00 (2006.01); B32B 9/02 (2006.01); B32B 9/04 (2006.01); B32B 21/14 (2006.01); B32B 37/12 (2006.01); B32B 38/00 (2006.01); C08L 27/06 (2006.01); E04F 15/04 (2006.01); E04F 15/10 (2006.01)
CPC B32B 9/042 (2013.01) [B32B 7/12 (2013.01); B32B 9/002 (2013.01); B32B 9/02 (2013.01); B32B 9/04 (2013.01); B32B 21/14 (2013.01); B32B 37/12 (2013.01); B32B 38/0012 (2013.01); C08L 27/06 (2013.01); E04F 15/043 (2013.01); E04F 15/107 (2013.01); B32B 2255/26 (2013.01); B32B 2264/0257 (2013.01); B32B 2264/104 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/7376 (2023.05); B32B 2310/0831 (2013.01); B32B 2419/04 (2013.01); C08L 2205/035 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A stone plastic composite (SPC) floor comprising a decorative surface, wherein the SPC floor comprises an SPC substrate and a decorative surface formed on the SPC substrate, the decorative surface is a wooden board or a bamboo board, and a moisture content of the decorative surface is controlled within 5-7%;
wherein an adhesive layer is arranged between the decorative surface and the SPC substrate;
wherein the adhesive layer is a cold glue;
wherein a bottom surface of the SPC floor is defined by the SPC substrate or by a sound-deadening layer glued to the bottom surface of the SPC substrate.