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US 5,179,116 AGranted
Wood preservatives
AssigneeDr. Wolman GmbH
InventorsReimer Goettsche, Hans-Volker Borck, Hans-Norbert Marx
Life of this patent
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Abstract
A wood preservative which is based on a dimethylalkylamine and an acid and contains dimethylalkylamine, a water-soluble acid and a water-insoluble acid and/or 2-(methoxycarbonylamino)-benzimidazole is used for preserving wood.
Claims6
A wood preservative composition consisting essentially of:
- a) 30.0 to 50% by weight of an N,N-dimethyl-N-alkylamine where the alkyl group contains 6 to 20 carbon atoms;
- b) 5 to 15% by weight of a water-insoluble aliphatic carboxylic acid containing 5 to 20 carbon atoms or salt thereof;
- c) 2.5 to 45% by weight of a water-soluble acid selected from the group consisting of phosphonic, phosphinic, monoalkyl phosphate, dialkylphosphate, monoalkyl phosphonate, sulfamic, C.sub.2 -C.sub.4 monocarboxylic, fumaric, citric and maleic;
- d) 0 to 25% by weight 2-(methoxycarboxylamino)-benzimidazole.
1 more element
A wood preservative composition consisting essentially of:
- a) 30.0 to 50% by weight of an N,N-dimethyl-N-alkylamine where the alkyl group contains 6 to 20 carbon atoms;
- b) 5 to 15% by weight of a water-insoluble aliphatic carboxylic acid containing 5 to 20 carbon atoms or salt thereof;
- c) 2.5 to 45% by weight of a water-soluble acid selected from the group consisting of phosphonic, phosphinic, monoalkyl phosphate, dialkylphosphate, monoalkyl phosphonate, sulfamic, C.sub.2 -C.sub.4 monocarboxylic, fumaric, citric and maleic.
Dependencies are inferred from the claim text.