	US 12,447,645 B2
	Modified timber
Holger Militz, Bovenden (DE); Lukas Emmerich, Bovenden (DE); Damien Julien Corpet, Oslon (FR); and Pauline Gatounes, Bruyeres sur Oise (FR)
Assigned to Georg-August-Universitat Gottingen Stiftung Offentlichen Rechts, Gottingen (DE); and Archroma IP GmbH, Reinach (CH)
Appl. No. 17/761,228
Filed by Georg-August-Universitat Gottingen Stiftung Offentlichen Rechts, Gottingen (DE); and Archroma IP GmbH, Reinach (CH)
PCT Filed Sep. 17, 2020, PCT No. PCT/EP2020/075949 § 371(c)(1), (2) Date Mar. 17, 2022, PCT Pub. No. WO2021/053059, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 19198145 (EP), filed on Sep. 18, 2019.
Prior Publication US 2022/0379517 A1, Dec. 1, 2022
Int. Cl. B27K 3/02 (2006.01); B27K 3/15 (2006.01); B27K 3/16 (2006.01); B27K 3/52 (2006.01); C09K 21/10 (2006.01); C09K 21/12 (2006.01)

CPC B27K 3/0214 (2013.01) [B27K 3/0292 (2013.01); B27K 3/15 (2013.01); B27K 3/166 (2013.01); B27K 3/52 (2013.01); C09K 21/10 (2013.01); C09K 21/12 (2013.01); B27K 2240/30 (2013.01)]

11 Claims

1. A boron-free and halogen-free treatment composition for timber and/or wood, comprising:

a) a fire-retardant comprising the moiety —N—C(═X)—N—with X being O, S, or substituted or unsubstituted nitrogen;

and at least one of the components b) or c):

b) a cross-linking agent whereby the cross-linking agent comprises a 2-imidazolidone moiety, or

c) a fixing agent,

whereby the composition is catalyst-free; and

wherein halogen in halogen-free means free from halogen-containing compounds, halogens, and halogenides, with halogens selected from fluorine, chlorine, bromine, or iodine, and halogenides being selected from fluoride, chloride, bromide, or iodide.