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US 12,447,645 B2Granted
Modified timber
AssigneesGeorg-August-Universität Göttingen Stiftung Öffentlichen Rechts, Archroma IP GmbH
InventorsHolger Militz, Lukas Emmerich, Damien Julien Corpet, Pauline Gatounes
Life of this patent
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Abstract
The invention relates to a treatment composition for timber or wood including fire-retardant and either a crosslinking agent or a fixing agent or both, whereby the composition is boron- and halogen-free.
Claims11
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.
4 more elements
Dependencies are inferred from the claim text.