US 4,824,484 A · Agent for preserving wood or wood-based materials and method for preparation and use thereof

Abstract

The present invention relates to a wood preservative comprising either (1) at least one of (a) ammonium monofluorophosphate and/or diammonium monofluorophosphate of the general formula (R.sub.1 R.sub.2 R.sub.3 R.sub.4 N)R.sub.5 PO.sub.3 F in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are identical or different and each denotes a straight-chain, branched or cyclic, saturated or unsaturated alkyl, aralkyl, alkyaryl or aryl radical, either unsubstituted or substituted by an alkyl, alkoxy or a hydroxyl group, up to three of the four R.sub.1 -R.sub.4 can be hydrogen or can together form an alkylene bridge, R.sub.5 is a hydrogen atom or a R.sub.6 R.sub.7 R.sub.8 R.sub.9 N group in which R.sub.6, R.sub.7, R.sub.8 and R.sub.9, respectively, have the same meanings as R.sub.1, R.sub.2, R.sub.3 and R.sub.4, respectively, and (b) a mixture of a salt of monofluorophosphoric acid and at least one ammonium salts of the general formula R.sub.1 R.sub.2 R.sub.3 R.sub.4 NX in which X is an acid radical, or (2) a mixture of (a) and/or (b) and (c) an alkali metal monofluorophosphate or an ammonium monofluorophosphate of the general formula M.sub.2 PO.sub.3 F and/or MHPO.sub.3 F, in which M is sodium, potassium or ammonium. The present invention also relates to a coating agent comprising an ammonium monofluorophosphate as above and components (d) that comprises at least one of a binder, a fixing agent and a plasticizer, and (e) a diluent, and to methods of producing and using such agents.

Claims29

Dependent claims

An agent for preserving wood or wood-based based materials comprising ammonium monofluorophosphate selected from the group consisting of

(1) at least one of components (a) and (b), and
(2) a mixture of components (a), (b) or mixtures thereof and component (c), wherein component
(a) comprises an organic ammonium monofluorophosphate an organic diammonium monofluorophosphate or mixtures thereof of the formula
(R.sub.1 R.sub.2 R.sub.3 R.sub.4 N)R.sub.5 PO.sub.3 F (Formula I)
wherein
R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are identical or different and each denotes a straight-chain, branched or cyclic, saturated or unsaturated alkyl, aralkyl, alkylaryl or aryl radical, either unsubstituted or substituted by an alkyl, alkoxy or a hydroxyl group, and up to three of the four R.sub.1 -R.sub.4 can be hydrogen or can together form an alkylene bridge;
R.sub.5 is a hydrogen atom or a R.sub.6 R.sub.7 R.sub.8 R.sub.9 N group in which R6, R7, R8 and R9, respectively, have the same meanings as R.sub.1, R.sub.2, R.sub.3 and R.sub.4, respectively;
(b) comprises a mixture of a salt of monofluorophosphoric acid in a solvent with at least one ammonium salt of the formula
R.sub.1 R.sub.2 R.sub.3 R.sub.4 NX (Formula II)
wherein
R.sub.1, R.sub.2, R.sub.3 and R.sub.4, respectively, have the same meanings as in Formula I, and
X denotes an acid radical;
and
(c) comprises an alkali metal monofluorophosphate or ammonium monofluorophosphate of the formula
M.sub.2 PO.sub.3 F,
MHPO.sub.3 F or mixtures thereof
wherein M is at least one of sodium, potassium and ammonium.

14 more elements

A coating agent for wood or wood-based materials comprising

ammonium monofluorophosphate selected from the group consisting of (1) at least one of components (a) and (b), and (2) a mixture of components (a), (b) or mixtures thereof and component (c),
component (d), and
component (e),
wherein component
(a) comprises an organic ammonium monofluorophosphate an organic diammonium monofluorophosphate or mixtures thereof of the formula
(R.sub.1 R.sub.2 R.sub.3 R.sub.4 N)R.sub.5 PO.sub.3 F (Formula I)
wherein
R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are identical or different and each denotes a straight-chain, branched or cyclic, saturated or unsaturated alkyl, aralkyl, alkylaryl or aryl radical, either unsubstitueed or substituted by an alkyl, alkoxy or a hydroxyl group, and up to three of the four R.sub.1 -R.sub.4 can be hydrogen or can together form an alkylene bridge;
R.sub.5 is a hydrogen atom or a R.sub.6 R.sub.7 R.sub.8 R.sub.9 N group in which R.sub.6, R.sub.7, R.sub.8 and R.sub.9, respectively, have the same meanings as R.sub.1, R.sub.2, R.sub.3 and R.sub.4, respectively;
(b) comprises a mixture of a salt of monofluorophosphoric acid in a solvent with at least one ammonium salt of the formula
R.sub.1 R.sub.2 R.sub.3 R.sub.4 NX (Formula II)
wherein
R.sub.1, R.sub.2, R.sub.3 and R.sub.4, respectively, have the same meanings as in Formula I, and
X denotes an acid radical;
and
(c) comprises an alkali metal monofluorophosphate or ammonium monofluorophosphate of the formula
M.sub.2 PO.sub.3 F,
MHPO.sub.3 F or mixtures thereof
wherein M is at least one of sodium, potassium and ammonium;
(d) is optional and comprises at least one of a binder, a fixing agent and a plasticizer;
and
(e) comprises a diluent.

19 more elements

Dependencies are inferred from the claim text.

Agent for preserving wood or wood-based materials and method for preparation and use thereof

Life of this patent

Agent for preserving wood or wood-based materials and method for preparation and use thereof

Life of this patent

Abstract

Claims29