US 12,320,072 B2
Stainable decorative board
Roger Braun, Willisau (CH); and Pius Steinmann, Schötz (CH)
Assigned to SWISS KRONO Tec AG, Lucerne (CH)
Appl. No. 17/043,008
Filed by SWISS KRONO Tec AG, Lucerne (CH)
PCT Filed Mar. 29, 2019, PCT No. PCT/EP2019/058049
§ 371(c)(1), (2) Date Sep. 29, 2020,
PCT Pub. No. WO2019/185887, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 18165078 (EP), filed on Mar. 29, 2018; application No. 18165082 (EP), filed on Mar. 29, 2018; and application No. 10 2018 129 628.2 (DE), filed on Nov. 23, 2018.
Prior Publication US 2021/0010203 A1, Jan. 14, 2021
Int. Cl. D21H 19/84 (2006.01); B32B 37/12 (2006.01); B32B 37/24 (2006.01); B32B 38/00 (2006.01); B32B 38/08 (2006.01); B44C 1/10 (2006.01); B44C 5/04 (2006.01); C09D 4/00 (2006.01); D21H 19/82 (2006.01); D21H 27/26 (2006.01)
CPC D21H 19/84 (2013.01) [B32B 37/12 (2013.01); B32B 38/08 (2013.01); B32B 38/164 (2013.01); B44C 1/10 (2013.01); B44C 1/105 (2013.01); B44C 5/04 (2013.01); B44C 5/043 (2013.01); C09D 4/00 (2013.01); D21H 19/822 (2013.01); D21H 27/26 (2013.01); B32B 2037/1215 (2013.01); B32B 2037/243 (2013.01); B32B 2305/026 (2013.01); B44C 5/0461 (2013.01); B44C 5/0469 (2013.01); B44C 5/0476 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for producing a color-changeable synthetic resin surface or lacquer surface, comprising the steps:
provide a backing layer having a bottom side and a top side,
fully impregnate the backing layer with a liquid impregnant without a stain additive,
at least slightly dry the impregnated backing layer without fully curing,
apply at least one layer of a coating agent to the top side of the backing layer, said at least one layer of the coating agent comprising an overlay at least partly impregnated with synthetic resin as an impregnant,
dry the at least one layer of the coating agent without fully curing,
bond the backing layer directly to a material by pressing the at least slightly dried backing layer and the dried coating agent comprising the overlay,
wherein during the pressing, the at least one layer of the coating agent cures to an open-pore, at least largely transparent layer.