US 11,905,717 B2
Single layer scattering of powder surfaces
Darko Pervan, Viken (SE)
Assigned to Ceraloc Innovation AB, Viken (SE)
Filed by CERALOC INNOVATION AB, Viken (SE)
Filed on Jul. 19, 2019, as Appl. No. 16/516,859.
Application 16/516,859 is a continuation of application No. 14/626,942, filed on Feb. 20, 2015, granted, now 10,392,812.
Application 14/626,942 is a continuation of application No. 13/962,272, filed on Aug. 8, 2013, granted, now 8,993,049, issued on Mar. 31, 2015.
Claims priority of provisional application 61/681,279, filed on Aug. 9, 2012.
Prior Publication US 2019/0338534 A1, Nov. 7, 2019
Int. Cl. E04F 15/10 (2006.01); B05D 1/36 (2006.01); B05D 1/38 (2006.01); B05D 7/00 (2006.01); B05C 19/04 (2006.01); B32B 37/24 (2006.01)
CPC E04F 15/102 (2013.01) [B05C 19/04 (2013.01); B05D 1/36 (2013.01); B05D 1/38 (2013.01); B05D 7/56 (2013.01); E04F 15/107 (2013.01); B05D 2401/32 (2013.01); B32B 2037/243 (2013.01); B32B 2317/16 (2013.01); B32B 2607/00 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of forming a paper-free surface layer of a building panel, the method comprising:
separately forming the following layers:
a binder layer comprising at least 50% by weight of particles of a thermosetting binder powder, and
a wear resistant layer comprising at least 50% by weight of wear resistant particles; and
pressing, under heat and pressure, the binder layer and the wear resistant layer to combine and mix the wear resistant particles of the wear resistant layer and the thermosetting binder of the binder layer to form the paper-free surface layer.