US 12,168,629 B2
Fiber cement flooring products and methods for the production thereof
Ruben Bordin, Mechelen (BE); and Luc Van Der Heyden, Boortmeerbeek (BE)
Assigned to Etex Services NV, Kapelle-op-den-Bos (BE); and Eternit NV, Kapelle-op-den-Bos (BE)
Filed by ETEX SERVICES NV, Kapelle-op-den-Bos (BE); and ETERNIT NV, Kapelle-op-den-Bos (BE)
Filed on Jan. 30, 2023, as Appl. No. 18/102,810.
Application 18/102,810 is a continuation of application No. 16/475,256, granted, now 11,597,680, previously published as PCT/EP2018/051974, filed on Jan. 26, 2018.
Claims priority of application No. 17153233 (EP), filed on Jan. 26, 2017; and application No. 17192726 (EP), filed on Sep. 22, 2017.
Prior Publication US 2023/0174425 A1, Jun. 8, 2023
Int. Cl. C04B 28/00 (2006.01); C04B 14/04 (2006.01); C04B 14/06 (2006.01); C04B 14/10 (2006.01); C04B 14/18 (2006.01); C04B 14/20 (2006.01); C04B 16/06 (2006.01); C04B 28/02 (2006.01); C04B 28/04 (2006.01); C04B 40/00 (2006.01); E04C 2/06 (2006.01); E04F 15/10 (2006.01); C04B 103/54 (2006.01); C04B 111/00 (2006.01); C04B 111/27 (2006.01); C04B 111/60 (2006.01); C04B 111/82 (2006.01)
CPC C04B 16/0641 (2013.01) [C04B 14/043 (2013.01); C04B 14/062 (2013.01); C04B 14/106 (2013.01); C04B 14/18 (2013.01); C04B 14/20 (2013.01); C04B 16/0633 (2013.01); C04B 28/02 (2013.01); C04B 28/04 (2013.01); C04B 40/0064 (2013.01); E04C 2/06 (2013.01); E04F 15/10 (2013.01); C04B 2103/54 (2013.01); C04B 2111/00405 (2013.01); C04B 2111/27 (2013.01); C04B 2111/60 (2013.01); C04B 2111/82 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An air-cured fiber cement product comprising cement and fibers, wherein:
said fiber cement product comprises amorphous silica in an amount of between 4 weight % and 15 weight % compared to the total dry weight of the fiber cement composition of said fiber cement product;
said fiber cement product further comprises a hydrophobic agent;
said fibers comprise synthetic fibers;
comprising on at least part of its outer surface one or more coating layers; and
said one or more coating layers comprise first a coating, which is a primer layer and a second coating chosen from the group of a waterborne acrylic top coat layer and a waterglass based coating.