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US 4,764,214 AGranted
Wood preservatives containing 2-iodobenzanilide
AssigneeDr. Wolman GmbH
InventorsHans-Norbert Marx, Reimer Goettsche, Werner Klein
Life of this patent
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Abstract
Wood preservatives contain a mixture of 2-iodobenzanilide with a quaternary ammonium compound.
Claims20
A wood preservative composition comprising 2-iodobenzanilide and a quaternary ammonium compound, wherein:
- (1) said 2-iodobenzanilide and said quaternary ammonium compounds are present in a weight ratio of from 2:1 to 1:20;
- and
- (2) said quaternary ammonium compound is a compound of the formula (R.sup.1 R.sup.2 R.sup.3 R.sup.4 N).sup.+ X.sup.-, wherein R.sub.1 is a C.sub.8-20 alkyl, benzyl, or benzyl substituted by C.sub.1-20 alkyl or halogen, R.sub.2 is C.sub.1 -C.sub.6 -alkyl or C.sub.3 -C.sub.9 -alkoxyalkyl, R.sup.3 is C.sub.1 -C.sub.6 -alkyl or C.sub.1-4 alkoxy, R.sup.4 is C.sub.1-20 alkyl, or wherein any two of radicals R.sup.1 to R.sup.4, together with the nitrogen atom, form a heterocyclic radical containing 4 or 5 carbon atoms, 1 or 2 nitrogen atoms, and 1, 2 or 3 double bonds, or wherein any two of radicals R.sub.1 to R.sub.4, together with the nitrogen atom, form a heterocyclic radical containing 4 or 5 carbon atoms, 1 or 2 nitrogen atoms, and 1, 2 or 3 double bonds, said carbon atoms being substituted by C.sub.1-4 alkyl or halogen, and Z is an acid radical.
A method for preserving wood, comprising treating wood with a composition comprising 2-iodobenzanilide and a quaternary ammonium compound, wherein:
- (1) said composition comprises said 2-iodobenzanilide and said quaternary ammonium compound in a weight ratio of from 2:1 to 1:20;
- and
- (2) said quaternary ammonium compound is a compound of the general formula (R.sup.1 R.sup.2 R.sup.3 R.sup.4 N).sup.+ Z.sup.-, wherein R.sup.1 is a C.sub.8-20 alkyl, benzyl or benzyl substituted by C.sub.1-20 alkyl or halogen, R.sup.2 is C.sub.1-6 alkyl or C.sub.3-9 alkyoxylkyl, R.sup.3 is C.sub.1-6 alkyl or C.sub.1-4 alkoxy, R.sup.4 is C.sub.1-20 alkyl, or wherein any two of radicals R.sup.1 to R.sup.4, together with the nitrogen atom, form a heterocyclic radical containing 4 or 5 carbon atoms, 1 or 2 nitrogen atoms and 1, 2 or 3 double bonds, or wherein any two of radicals R.sup.1 to R.sup.4 together with the nitrogen atom form a heterocyclic radical containing 4 or 5 carbon atoms, 1 or 2 nitrogen atoms and 1, 2 or 3 double bonds, wherein said carbon atoms are substituted by C.sub.1-4 alkyl or halogen, and Z is an acid radical.
Dependencies are inferred from the claim text.