US 11,931,774 B2
Coated wood veneer and method for treating wood veneer
Jaakko Pere, VTT (FI); Vesa Kunnari, VTT (FI); Matti Kairi, Aalto (FI); and Pekka Ahtila, Aalto (FI)
Assigned to TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, Espoo (FI); and AALTO UNIVERSITY FOUNDATION SR, Aalto (FI)
Appl. No. 16/963,878
Filed by TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, Espoo (FI); and AALTO UNIVERSITY FOUNDATION SR, Aalto (FI)
PCT Filed Jan. 16, 2019, PCT No. PCT/FI2019/050031
§ 371(c)(1), (2) Date Jul. 22, 2020,
PCT Pub. No. WO2019/145600, PCT Pub. Date Aug. 1, 2019.
Claims priority of application No. 20185063 (FI), filed on Jan. 23, 2018.
Prior Publication US 2021/0039134 A1, Feb. 11, 2021
Int. Cl. B05D 7/10 (2006.01); C09D 101/02 (2006.01); B05D 3/02 (2006.01)
CPC B05D 7/10 (2013.01) [C09D 101/02 (2013.01); B05D 3/0254 (2013.01); B05D 2401/20 (2013.01)] 16 Claims
 
1. A method for treating wood veneer, the method comprising:
providing at least one sheet of wood veneer;
coating at least one side of the at least one sheet of wood veneer with an aqueous coating composition comprising nanocellulose in an amount between 4 to 18% by weight, calculated of the weight of the total coating composition, the nanocellulose having apparent viscosity between 8,000 and 22,000 mPa·s after the aqueous coating composition comprising the nanocellulose is mixed for about 10 minutes at about 300 rpm and then mixed for about 2 minutes at 14,000 rpm, in a consistency of 5% by weight at a temperature of 20 ° C. to obtain a coated sheet of wood veneer; and
drying the coated sheet using compression pressure and heat.