NZ504655A - Timber preservative including a quaternary ammounium compound and a non-polar solvent - Google Patents
Timber preservative including a quaternary ammounium compound and a non-polar solventInfo
- Publication number
- NZ504655A NZ504655A NZ50465500A NZ50465500A NZ504655A NZ 504655 A NZ504655 A NZ 504655A NZ 50465500 A NZ50465500 A NZ 50465500A NZ 50465500 A NZ50465500 A NZ 50465500A NZ 504655 A NZ504655 A NZ 504655A
- Authority
- NZ
- New Zealand
- Prior art keywords
- timber
- timber preservative
- solvent
- preservative composition
- composition according
- Prior art date
Links
- 239000011864 timber preservative Substances 0.000 title claims abstract description 29
- 150000001875 compounds Chemical class 0.000 title claims description 6
- 239000012454 non-polar solvent Substances 0.000 title description 7
- 239000000203 mixture Substances 0.000 claims abstract description 51
- 239000002904 solvent Substances 0.000 claims abstract description 24
- 239000006184 cosolvent Substances 0.000 claims abstract description 19
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims abstract description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 13
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 13
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 13
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical group CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 23
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 claims description 14
- 229960004670 didecyldimethylammonium chloride Drugs 0.000 claims description 13
- 230000000855 fungicidal effect Effects 0.000 claims description 9
- 239000000417 fungicide Substances 0.000 claims description 9
- 125000005210 alkyl ammonium group Chemical group 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- PXMNMQRDXWABCY-UHFFFAOYSA-N 1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol Chemical compound C1=NC=NN1CC(O)(C(C)(C)C)CCC1=CC=C(Cl)C=C1 PXMNMQRDXWABCY-UHFFFAOYSA-N 0.000 claims description 6
- 239000003755 preservative agent Substances 0.000 claims description 6
- 239000005839 Tebuconazole Substances 0.000 claims description 5
- 150000001335 aliphatic alkanes Chemical group 0.000 claims description 4
- 230000002335 preservative effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 claims description 3
- AKNQMEBLVAMSNZ-UHFFFAOYSA-N azaconazole Chemical compound ClC1=CC(Cl)=CC=C1C1(CN2N=CN=C2)OCCO1 AKNQMEBLVAMSNZ-UHFFFAOYSA-N 0.000 claims description 2
- MZNDIOURMFYZLE-UHFFFAOYSA-N butan-1-ol Chemical group CCCCO.CCCCO MZNDIOURMFYZLE-UHFFFAOYSA-N 0.000 claims description 2
- STJLVHWMYQXCPB-UHFFFAOYSA-N propiconazole Chemical compound O1C(CCC)COC1(C=1C(=CC(Cl)=CC=1)Cl)CN1N=CN=C1 STJLVHWMYQXCPB-UHFFFAOYSA-N 0.000 claims description 2
- 150000003852 triazoles Chemical class 0.000 claims description 2
- 229940099451 3-iodo-2-propynylbutylcarbamate Drugs 0.000 claims 1
- WYVVKGNFXHOCQV-UHFFFAOYSA-N 3-iodoprop-2-yn-1-yl butylcarbamate Chemical group CCCCNC(=O)OCC#CI WYVVKGNFXHOCQV-UHFFFAOYSA-N 0.000 claims 1
- 239000000243 solution Substances 0.000 description 11
- 235000015096 spirit Nutrition 0.000 description 9
- 229940027983 antiseptic and disinfectant quaternary ammonium compound Drugs 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 239000012456 homogeneous solution Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 description 1
- 229960002836 biphenylol Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- SKKTUOZKZKCGTB-UHFFFAOYSA-N butyl carbamate Chemical compound CCCCOC(N)=O SKKTUOZKZKCGTB-UHFFFAOYSA-N 0.000 description 1
- SBPBAQFWLVIOKP-UHFFFAOYSA-N chlorpyrifos Chemical compound CCOP(=S)(OCC)OC1=NC(Cl)=C(Cl)C=C1Cl SBPBAQFWLVIOKP-UHFFFAOYSA-N 0.000 description 1
- -1 compound didecyldimethylammonium chloride Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 229940070765 laurate Drugs 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003761 preservation solution Substances 0.000 description 1
- 239000002728 pyrethroid Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002424 termiticide Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A timber preservative composition that comprises a quaternary ammonium compound, a non-polar hydrocarbon solvent and an alkanol co-solvent.
Description
New Zealand Paient Spedficaiion for Paient Number 504655 W\WEST-WALKER\EAW\SPECS\825907 PATENTS FORM 5 PATENTS ACT 1953 COMPLETE SPECIFICATION Number 504655 Dated 19 May 2000 A TIMBER PRESERVATIVE COMPOSITION We, FLETCHER CHALLENGE FORESTS LIMITED, a New Zealand company, of 3 Rockridge Avenue, Penrose, Auckland, New Zealand, do hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is 25 to be performed, to be particularly described in and by the following statement.
■IM l tLLECTUAL PROPERTY 0FRCF OF M.z 1 h FEB 2003 RFnpn/cn W\WEST-WALKER\EAW\SPECS\825907 This invention relates to timber treatment. More particularly, it relates to timber treatment compositions containing quaternary ammonium compounds and a non-polar solvent.
BACKGROUND Timber preservation solutions containing quaternary ammonium compounds are finding wide application, especially in jurisdictions such as Japan. Solutions which contain the compound didecyldimethylammonium chloride are particularly preferred 10 as they are non-metallic and therefore more environmentally friendly than preservatives historically employed.
Quaternary ammonium compounds are highly polar and are normally applied as water borne preservatives. However, the applicants have now found that it is 15 possible to employ the highly polar quaternary ammonium compounds in combination with a non-aqueous non-polar solvent. This finding is surprising given the expectation of incompatibility between the polar and non-polar phases.
OBJECT It is therefore an object of the present invention to provide a timber preservative composition which comprises a quaternary ammonium compound and a non-polar solvent, or at least provides the public with a useful choice.
SUMMARY OF THE INVENTION Accordingly, in a first embodiment, the invention provides a timber preservative composition which comprises: a quaternary ammonium compound; and a non-polar hydrocarbon solvent; and an alkanol co-solvent present in an amount sufficient to increase stability of 35 the composition. 2 . intellec'i ual property office of n.z 14 FEB 2003 RECEIVED W\WEST-WALKER\EAW\SPECS\825907 In its preferred form, the quaternary ammonium compound is an alkyl ammonium 5 compound, more preferably one with a water content of less than 20% by volume.
Preferably, said alkyl ammonium compound is selected from benzylalkonium chloride, lauryl dimethylbenzylammonium chloride and didecyldimethylammonium chloride, with didecyldimethylammonium chloride (DDAC) being presently most 10 preferred.
In a specific preferred form, the timber preservation composition comprises DDAC and a non-polar solvent.
Preferably, said solvent is an alkane-based solvent. The solvents known as "white spirits" are suitable for use in the present invention.
The currently preferred form of timber preservative composition comprises DDAC and white spirits.
By "stabilise" it is meant that the separation of the components of the composition into distinct phases (which may or may not be separate quaternary ammonium/non-polar solvent phases) is at least retarded.
Preferably, where included said alkanol co-solvent is present in an amount of up to 10% by volume.
The alkanol co-solvent is preferably butanol and most preferably is n-butanol (1-30 butanol).
Preferably, the alkanol co-solvent is n-butanol which is present in the composition in the amount of about 3% by volume. ofRN°2EmY~ 1 4 FEB 2003 RECEIVED W\WEST-WALKER\EAW\SPECS\825907 £ 25 It is presently most preferred that the composition comprise DDAC, white spirits and n-butanol.
In yet a further aspect, the invention provides a method of preserving a timber product which comprises the step of treating said timber product with a preservative composition as defined above.
In still a further aspect, the invention provides a timber product which has been treated with a preservative composition as defined above.
Although the invention is broadly as defined above, it will be appreciated by those persons skilled in the art that it also includes embodiments of which the following description provides examples. Further, in the following description, it will be understood that the specific components described are described by way of illustration only and that all equivalents and conventional replacements which would be apparent to those persons skilled in the art are contemplated as being within the scope of the invention.
DESCRIPTION OF THE INVENTION As described above, in its primary aspect, the invention provides a timber preservation composition. The composition contains a timber preservative in the form of a quaternary ammonium compound (or a mixture of such compounds) in a solvent component, as well as a co-solvent. The solvent employed is a non-polar hydrocarbon solvent, while the co-solvent is an alkanol.
In formulating the compositions, any of the family of quaternary ammonium compounds which are effective as timber preservatives can be used. Such compounds include the alkyl ammonium compounds, benzylalkonium chloride and lauryl dimethylbenzylammonium chloride. It is however preferred that the quaternary ammonium compound be didecyldimethylammonium chloride which is known as DDAC.
The non-polar hydrocarbon solvent can be any such solvent commercially available. Generally, however, the solvent will be a hydrocarbon solvent of the "white spirits" 4 intellectual property office of n.z 1 4 FEB 2003 RECEIVED W\WEST-WALKER\EAW\SPECS\825907 type which includes a predominance of high boiling point alkanes. However, aromatic hydrocarbon solvents are in no way excluded.
There are numerous white spirit hydrocarbon solvents available. By way of example, 5 Mobil offer a regular white spirits, a low aromatic white spirits and a non-odour white spirits, with the difference between them being in terms of decreasing content of aromatics. All such solvents qualify as non-polar solvents in accordance with this invention.
The presently preferred solvent is marketed by Mobil under the brand Mobil Dry Cleaner, which is described by Mobil as a clean, colourless hydrocarbon solvent of moderate volatility and with an aromatic content of 18%.
The composition includes a co-solvent, which reduces the risk of phase separation 15 where the treatment composition has to stand over time. The co-solvent will therefore preferably act as a stabiliser.
The co-solvent can conveniently be any alkanol or a mixture of these. It is presently 20 preferred that it be butanol. It is further preferred that the co-solvent be, or predominantly be, n-butanol (1-butanol).
The three components of the preferred composition can be included in a range of concentrations. It is however presently preferred that the co-solvent component 25 comprise up to 10% by volume of the composition. Generally, the co-solvent component will be included at less than 5% by volume of the composition, and more preferably at approximately from 3 to 4% by volume of the composition. That is particularly the case where the co-solvent is, as is presently preferred, n-butanol.
In addition to the above components, the timber preservative solution of the invention can also include other optional components where this is desirable. One such optional component which is preferably included is a secondary fungicide. This fungicide can be selected from amongst any of those commercially available which are compatible with the other components. Examples include IPBC (iodo-propynyl-35 butyl carbamate) and dichlorofluanide. However, a triazole fungicide is preferred, i'm i mabctual-property " office of n 2 14 FEB 2003 RECEIVED W\WEST-WALKER\EAW\SPECS\825907 with the current specific preferences being tebuconazole, propiconizole and azoconozole.
Other optional components which may be included are insecticides, particularly 5 termiticides, such as chlorpyriphos or a pyrethroid, and water repellent compounds, such as paraffin, hydrocarbon waxes and steryl laurate.
The compositions of the invention will now be described with reference to the following experimental section which will be understood to be illustrative only and 10 not limiting.
EXPERIMENTAL A. Preparation of Treatment Solution Preferred Formulation: Raw Materials: DDAC -Tebuconazole - White Spirit - n-butanol - Bardac 2280 (80% DDAC, Lonza, USA) Preventol A8 (93% tebuconazole, Bayer) Mobil Dry Cleaner - highly refined petroleum product with an aromatic content of 18% Shell Chemicals To prepare 1L of product: (a) Dissolve 2.26g Preventol A8 in 30g (37ml) of n-butanol. (b) Dissolve 142g Bardac 2280 in 750ml white spirit. Mix well but it does not matter if two phases separate on standing. 6 W\WEST-WALKER\EAW\SPECS\825907 (c) Add the Preventol/n-butanol solution in (a) to the Bardac/White Spirit mixture in (b) and mix well. A clear homogeneous solution will form. (d) Top up the solution in (c) with white spirits to one litre (approx. 50ml required). Stir solution.
B. Stability of Composition A treatment solution was prepared from 16% v/v Bardac 2280 (see above) and 84 % v/v white spirits (Mobil Dry Cleaner - see above).
This solution was used to treat timber by a standard LOSP application process, with 15 the treatment results being perfectly satisfactory. The solution was then allowed to stand, exposed to air. This resulted in a complex two-phase separation on a 40/60 ratio. 3.7% v/v n-butanol was then added, and the solution stirred to mix all components. 20 This resulted in a homogeneous solution.
When left to stand exposed to air for the same period of time as previously, the solution remained homogeneous and the phase separation previously observed did not eventuate.
INDUSTRIAL APPLICABILITY Once formulated, the timber preservative composition of the invention can be applied to a timber product using any conventional application process. However, Light 30 Organic Solvent Processes (LOSP) are preferred.
The invention further provides timber treated using a timber preservative composition according to the invention. Such timber products are particularly suitable for use in any ground-contact application. 7 FnuoWcTL0r«TRW I 14 FEB 2003 I Rpncil/eis
Claims (21)
1. A timber preservative composition which includes a quaternary ammonium compound, a non-polar hydrocarbon solvent and an alkanol co-solvent present in an amount sufficient to increase stability of the composition.
2. A timber preservative composition according to claim 1 wherein the quaternary ammonium compound is an alkyl ammonium compound.
3. A timber preservative composition according to claim 2 wherein the quaternary ammonium compound is an alkyl ammonium compound with a water content of less than 20% by volume. 15
4. A timber preservative composition according to either one of claims 2 and 3 wherein the alkyl ammonium compound is selected from benzylalkonium chloride, lauryl dimethylbenzylammonium chloride and didecyldimethylammonium chloride. 20
5. A timber preservative composition according to any one of claims 2 and 3 wherein the alkyl ammonium compound is didecyldimethylammonium chloride.
6. A timber preservative composition according to any one of claims 1 to 5 wherein the non-polar hydrocarbon solvent is an alkane-based solvent. 25
7. A timber preservative composition according to claim 6 wherein the non-polar hydrocarbon solvent is predominantly a mixture of alkanes.
8. A timber preservative composition according to claim 7 wherein the non-polar 30 hydrocarbon solvent comprises a white spirit. 9 INTELLECTUAL PROPERTY OFFICE OF N.Z 1 * FEB 2003 RECEIVED W\WEST-WALKER\EAW\SPECS\825907
9. A timber preservative composition according to any one of claims 1 to 9 wherein the co-solvent is present in an amount of up to 10% by volume. 5
10. A timber preservative composition according to any one of claims 1 to 9 wherein the co-solvent is butanol.
11. A timber preservative composition according to claim 10 wherein the co-solvent is n-butanol (1-butanol). 10
12. A timber preservative composition according to either one of claims 10 and 11 wherein the co-solvent is present in the composition in an amount of about 3% by volume. 15
13. A timber preservative compound according to any one of claims 1 to 12 wherein the composition further comprises a secondary fungicide.
14.A timber preservative according to claim 13 wherein the secondary fungicide is selected from iodo-propynyl-butyl carbamate and dichlorofluanide. 20
15. A timber preservative according to claim 13 wherein the secondary fungicide is a triazole fungicide.
16. A timber preservative according to claim 15 wherein the secondary fungicide is 25 selected from tebuconazole, propiconizole and azoconozole. 10 INTELLECTUAL PROPERTY OFFICE OF N.Z 1 4 FEB 2003 RECEIVED W\WEST-WALKER\EAW\SPECS\825907
17. A timber preservative according to claim 15 wherein the secondary fungicide is tebuconazole. 5
18. A timber preservative composition, substantially as herein described with reference to the accompanying example.
19. A method of preserving a timber product which comprises the step of treating the timber product with a preservative composition as defined in any one of claims 1 10 to 18.
20. A timber product which has been treated with a preservative composition as defined in any one of claims 1 to 18. 15
21. A timber product which has been treated by a method of claim 19. 11 intellectual property OFFICE OF N.Z 1 4 FEB 2003 RECEIVED
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ50465500A NZ504655A (en) | 2000-05-19 | 2000-05-19 | Timber preservative including a quaternary ammounium compound and a non-polar solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ50465500A NZ504655A (en) | 2000-05-19 | 2000-05-19 | Timber preservative including a quaternary ammounium compound and a non-polar solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ504655A true NZ504655A (en) | 2003-05-30 |
Family
ID=19927894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ50465500A NZ504655A (en) | 2000-05-19 | 2000-05-19 | Timber preservative including a quaternary ammounium compound and a non-polar solvent |
Country Status (1)
| Country | Link |
|---|---|
| NZ (1) | NZ504655A (en) |
-
2000
- 2000-05-19 NZ NZ50465500A patent/NZ504655A/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
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| RENW | Renewal (renewal fees accepted) | ||
| ASS | Change of ownership |
Owner name: TENON MANUFACTURING LIMITED, NZ Free format text: OLD OWNER(S): FLETCHER CHALLENGE FORESTS INDUSTRIES LIMITED |
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| RENW | Renewal (renewal fees accepted) | ||
| RENW | Renewal (renewal fees accepted) | ||
| ERR | Error or correction |
Free format text: THE AGENT HAS BEEN CORRECTED TO 600022, AJ PARK, STATE INSURANCE TOWER, LEVEL 22, 1 WILLIS STREET, WELLINGTON 6011, NZ; THE CONTACT HAS BEEN CORRECTED TO 600022, AJ PARK, STATE INSURANCE TOWER, LEVEL 22, 1 WILLIS STREET, WELLINGTON 6011, NZ Effective date: 20140226 |
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| RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 7 YEARS UNTIL 16 AUG 2021 BY AJ PARK Effective date: 20140716 |
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| ASS | Change of ownership |
Owner name: TENON CLEARWOOD LIMITED, NZ Effective date: 20170627 |
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| EXPY | Patent expired |