	US 12,377,574 B2
	Boards from acetylated rubberwood
Stefan Van Dommele, London (GB); and Theodorus Gerardus Marinus Maria Kappen, Rosmalen (NL)
Assigned to TRICOYA TECHNOLOGIES LTD, London (GB)
Appl. No. 17/310,373
Filed by TRICOYA TECHNOLOGIES LTD, London (GB)
PCT Filed Feb. 3, 2020, PCT No. PCT/EP2020/052624 § 371(c)(1), (2) Date Jul. 29, 2021, PCT Pub. No. WO2020/157333, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 19155107 (EP), filed on Feb. 1, 2019.
Prior Publication US 2022/0118646 A1, Apr. 21, 2022
Int. Cl. B27K 3/34 (2006.01); B27K 3/02 (2006.01); B27K 3/08 (2006.01); B27N 3/02 (2006.01); B27N 3/04 (2006.01); B27N 3/18 (2006.01)

CPC B27K 3/34 (2013.01) [B27K 3/0271 (2013.01); B27K 3/08 (2013.01); B27N 3/02 (2013.01); B27N 3/04 (2013.01); B27N 3/18 (2013.01); B27K 2200/10 (2013.01); B27K 2240/70 (2013.01)]

12 Claims

1. A board comprising acetylated wood elements, wherein the acetylated wood elements are obtained from rubberwood, wherein said acetylated wood elements have an acetyl content of at least 17%, and wherein said acetylated wood elements are selected from the group consisting of fibres, chips, particles, splinters, and fibre bundles;

wherein the board has an increased internal bond strength compared to a non-acetylated reference board;

wherein fibres have a length of from 1 mm to 5 mm, a width of from 0.05 mm to 0.1 mm, and a thickness of from 0.05 mm to 0.1 mm;

chips have a length of from 5 mm to 75 mm, a width of from 5 mm to 50 mm, and a thickness of from 1.5 mm to 25 mm;

particles have a length of from 1.5 mm to 20 mm, a width of from 0.15 mm to 5 mm, and a thickness of from 0.15 mm to 5 mm;

splinters have a length of from 5 mm to 75 mm, a width of from 0.15 mm to 0.5 mm, and a thickness of from 0.15 mm to 0.5 mm; and

fibre bundles have a length of from 1.5 mm to 25 mm, a width of from 0.15 mm to 5 mm, and a thickness of from 0.15 mm to 5 mm.