+

WO2006047819A1 - Impregnation de bois - Google Patents

Impregnation de bois Download PDF

Info

Publication number
WO2006047819A1
WO2006047819A1 PCT/AU2005/001680 AU2005001680W WO2006047819A1 WO 2006047819 A1 WO2006047819 A1 WO 2006047819A1 AU 2005001680 W AU2005001680 W AU 2005001680W WO 2006047819 A1 WO2006047819 A1 WO 2006047819A1
Authority
WO
WIPO (PCT)
Prior art keywords
copper
oil
composition according
biocide
carrier system
Prior art date
Application number
PCT/AU2005/001680
Other languages
English (en)
Inventor
Peter Raynor Soundy Cobham
Original Assignee
Koppers Arch Wood Protection (Aust) Pty Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2004906323A external-priority patent/AU2004906323A0/en
Application filed by Koppers Arch Wood Protection (Aust) Pty Limited filed Critical Koppers Arch Wood Protection (Aust) Pty Limited
Publication of WO2006047819A1 publication Critical patent/WO2006047819A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/44—Tar; Mineral oil
    • B27K3/48—Mineral oil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C08L91/005—Drying oils
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse

Definitions

  • the present invention relates to preservatives and particularly preservatives for wood materials.
  • Wood continues to be one of the most commonly used raw materials for Framing and exterior construction. Susceptibility to insect, termite and fungal attack in some countries has been overcome by treatment of wood. Application methods and approved chemicals vary dramatically throughout the world. Softwood timbers, including pinus radiata, pinus elliotti, and pinus carribea and hardwood timbers, including eucalyptus species are used as building timber in Australia. These species, along with others, are susceptible to insect, termite and fungal attack. Wood can be used as solid wood, either sawn or roundwood or be converted in engineered wood products like plywood, laminated veneer lumber (LVL) or oriented strand board (OSB). Wood from solid wood production and engineered wood products need protection from insects, termites and fungal attack.
  • LDL laminated veneer lumber
  • OSB oriented strand board
  • the penetration shall be not less than 8 mm from any surface. Where the lesser cross-sectional dimension is equal or less then 35 mm, the penetration shall be not less than 5 mm from any surface, (ii) Unpenetrated heartwood shall be permitted, provided that it comprises less than 20% of the cross-section of the piece and does not extend more than halfway through the piece from one surface to the opposite surface and does not exceed half the dimension of the side in the cross-section on which it occurs.”
  • a carrier In order to provide for penetration of the preservative, a carrier must be used. As shown in the Australian standard, the carriers currently available are waterborne or solvent borne systems.
  • Waterborne carriers swell wood and hence may need to be re-dried prior to use in service.
  • the process sequence is:
  • the process sequence is:
  • the invention provides a carrier system for impregnating wood which is capable of carrying an active ingredient throughout the wood.
  • the carrier system comprises 0.1-30% of a drying or semi-drying oil and 70-99.9% of an extender.
  • the invention provides a composition for treating wood comprising: an active agent or agents; and a carrier system which comprises 0.1-30% of a drying or semi-drying oil and 70-80% of an extender.
  • the active agent is present in an amount to achieve the desired treatment effect.
  • the active agent or agents is present in an amount up to 5 % mass/mass of the composition, more preferably an amount up to 2%, even more preferably in an amount up to 1%, even more preferably in an amount up to 0.5%.
  • the active agent or agents is present in a total amount of more than 0.001% of the composition, more preferably in a total amount greater than 0.01% and even more preferably in a total amount greater than 0.1% mass/mass of the composition.
  • the biocide is an IPBCs (3-iodo-2-propynyl- butylcarbamate) it is present in an amount of 0.01 to 0.05% mass/mass, more preferably 0.015% mass/mass to 0.03% mass/mass.
  • IBPCs may be present in the composition in an amount as high as 0.2 to 0.6% mass/mass of the composition.
  • the biocide is tebuconazole, it is present in an amount of from 0.001% to 0.05%, and more preferably 0.004 to 0.030%. However, azoles may be present in an amount as high as 0.8% mass/mass of the composition.
  • the biocide used is a copper biocide it is present in an amount 0.01 to 0.4%, and more preferably in an amount of from 0.04 to 4%. Other preferred ranges include 0.04%-0.4% and 0.01 to 4%.
  • CCA copper chrome arsenate
  • the extender is combustible.
  • the definition in Australia of combustible substance is one having a flash point above 60.5 0 C.
  • the extender has a flash point greater than 60.5 0 C.
  • the extender is flammable.
  • the extender has a flash point less than 60.5 0 C.
  • the drying oil is linseed oil. More preferably, the linseed oil is pale boiled linseed oil (PBLO)
  • PBLO pale boiled linseed oil
  • drying oil may be fish oil or any other drying oil or semi-drying oil may be used.
  • a drying oil is an oil which saturates in air.
  • linseed oil dries to form a water barrier and penetrates without the need for pressure and advantageously is low odour.
  • drying oils include tung oil, poppy oil, walnut oil, safflower oil and sunflower oil.
  • Semi-drying oils suitable include cottonseed oil, corn oil and soybean oil.
  • any oils having suitable quantities of linolenic and linoleic oil maybe used.
  • the drying oil is present in an amount of 0.1 to 30% mass/mass of the carrier system, more preferably about 10-30% of the carrier system, more preferably around 10-20% of the carrier system, and even more preferably around 10-15% of the carrier system.
  • the extender may be present in any amount to bring the drying oil and any active to 100% i.e. 70-99.9%.)
  • the extender is preferably present in an amount of about 80% of the carrier system.
  • the extender is combustible, having a flash point greater than 60.5 0 C. Extenders with high boiling point/flash point which reduce vapour emissions in production and use. Another surprising benefit of using a high boiling point carrier system is its advantageous effect on migration of the preservative. Without wishing to be bound by theory, it is believed that higher boiling point of the carrier/preservative mixture tends to allow the preservative to move inwards, as compared with more volatile solvents which migrate outwardly.
  • the extender is flammable, having a flash point less than 60.5 0 C. Any extenders with suitable solvency properties, even those having very low flash points, are suitable in the present invention.
  • the extender is heating oil.
  • Other light weight hydrocarbons such as white spirit, kerosene, high flash kerosene and oils such as diesel are suitable extenders.
  • extenders as used herein also encompasses mixtures of one or more extenders, for example, mixtures of diesel and white spirit.
  • Using a non-swelling drying carrier oil also has the advantage that the treated wood/timber does not need to be re-dried, i.e. treatment can be accomplished by simple dipping of the wood until the required level of uptake is achieved.
  • the treatments of the present invention can be applied both as an envelope, for example, to a depth of 5mm from the entire outside surface of the timber, or can be applied to a level of full penetration.
  • the active may be a biocide, insecticide, termicide, fungicide or the like.
  • preservatives may also be used in combination with the carrier system.
  • Various insecticides and therapeuticides known in the art may be mixed with the oil including synthetic pyrethroid, permethrin, cypermethrin, bifenthrin, imidachloprid etc.
  • Fungicides and mouldicides may also be used such as iodopropynylbutylcarbamate (IPBC), azoles, tributyltin naphthenate (TBTN) and the class of mouldicides known as isothiazolones.
  • Fungicides and mouldicides may also be used such as iodopropynylbutylcarbamate (IPBC), organic tin compounds such as tributyltin naphthenate, organic copper compounds such as copper 8 quinolinolate and copper naphthenate, organic zinc compounds, quaternary ammonium compounds, tertiary ammonium compounds, isothiazolones, triazoles such as tebuconazole, boron compounds such as trimethyl borate. Bethoguard is also particularly suitable. This would allow the formulation to be used as a permanent preservative as defined by Hazard classes 3,4 and 5 in Australian Standard AS 1604.1-2005 America Wood Preserves Association standards (USA) and MP 3640 (New Zealand).
  • the active may be a metallic biocide.
  • Metallic biocides are preferably copper or tin based compounds.
  • Preferred copper based actives include: alkaline (amine or ammonia) copper quats (ACQ), ammonium/copper, ammoniacal copper zinc arsenate (ACZA), bis(N- cyclohexyldiazeniumdioxy)copper, copper acetate, copper ammonium acetate complex, copper azole, copper borate, copper carbonate, copper citrate, copper/diethanolamine complex, copper/diethylamine complex, copper/ ethanolamine complex, copper/ethylene diamine complex, copper fluoride, copper fluoroborate, copper hydroxide, copper hydroxycarbonate, copper salt of 8-hydroxyquinoline, copper naphthenate, copper oxide, copper oxychloride, copper sulfate, copper/triethanolamine complex
  • the active is an organic biocide.
  • Preferred organic biocides include IPBC, azoles, mixed azoles bethoguard.
  • the active includes a combination of an organic biocide and a metallic biocide.
  • Another highly preferred active is a combination of copper naphthenate and mixed azoles.
  • One highly preferred active is a combination of IPBC, Azoles and bethoguard.
  • One particularly preferred composition is a combination of IPBC, Azoles and bethoguard in an 20:80 mixture of PBLO:heating oil. Drying agents such as cobalt, manganese, zirconium and copper naphthenate may be added to accelerate the drying of the drying oil.
  • the invention provides a method of treating wood including treating wood with a composition according to the first aspect.
  • the composition is allowed to fully penetrate the wood.
  • the wood is treated with a composition of the first aspect in an amount of between 20 and 60 litres of composition per cubic meter of wood.
  • the wood is treated with a composition of the first aspect in an amount of about 40 litres of composition per cubic meter of wood.
  • the invention provides treated wood, wherein the wood is impregnated throughout with a composition of the first aspect.
  • the composition is present in an amount of between 20 and 60 litres per cubic meter of wood.
  • the wood may be natural timber, or a composite product such as medium density fibreboard, plywood, laminated veneer lumber, medium density fibre board, particleboard, oriented strand board, agglomerated structural board, and structural members such as logs, poles posts, beams, sheets, mouldings.
  • the treatment step can be conducted using conventional pressure application techniques such as existing vacuum pressure systems known in light organic solvent plants (LOSP).
  • LOSP light organic solvent plants
  • the mixture of the present invention can be applied without the need for pressure application. Treatment can be accomplished by spraying, dipping etc which, unlike previous conventional batch systems, is ideal for use on continuous production line facilities such as saw mills and production plants for engineered wood products.
  • Figure 1 shows the effect of the ratio of extender to drying/semi drying oil on fungal activity.
  • Figure 2 shows the effect of carrier and uptake on fungal activity.
  • Figure 3 shows the set up of a test procedure of the present invention.
  • Figure 4 shows representative results in an untreated sample.
  • Figure 5 shows representative results in a sample treated with a composition of the present invention .
  • Tests were conducted to verify the efficacy of the above mentioned compositions in preventing attach by various fungal organisms. Experimental treatments were carried out by dipping wood wafers (Sutter blocks)
  • Table 1 shows the results of a number of different treatments conducted in relation to two different fungal species, Antrodia xantha and Paxillus panuoides.
  • kerosene and/or PBLO controls alone at these levels of uptake are not sufficient to prevent decay of the wood.
  • PBLO alone may have some minor effect, however PBLO alone did not lead to acceptable minimization of fungal loss.
  • PBLO in conjunction with IPBC provided some reduction in mass loss against Antrodia Xantha, but again paxillus panuoides was still highly damaging.
  • Figure 1 shows the results presented in a graphical format. It can clearly be seen that 80:20 Diesel PBLO outperformed solvent mixtures with either 100% diesel or with lower levels of diesel, for both fungi tested. Using 80:20 diesel:PBLO led to a level of loss around half that of the next best carrier tested, neat diesel. Clearly, where the drying oil is present in around 10-30%, more preferably 10-20% and even more preferably around 10-15% of the carrier (eg 80:20 diesel :PBLO) there appears to be a synergy which allows the biocide (eg 0.03%IPBC) to be more effective than in either extender or drying oil alone.
  • the carrier eg 80:20 diesel :PBLO
  • the impregnated timber still had good improved dimensional stability, water repellency and improved surface coating capability (paint adhesion), as well as improved handling properties, such as reduced splitting when nailing.
  • Optimal uptake was at around 4OL per cubic meter of wood. Increasing or decreasing uptake outside the range of about 20-60L per cubic meter led to decreased efficacy. For example, loading the formulations of the present invention onto wood at IOOL per cubic meter led to decreases in the efficacy of the formulation over the values at 4OL, even though two and a half times more biocide was being used.
  • Table 2 shows the effect of ratios of high flash solvent (kerosene) and pale boiled linseed oil (PBLO).
  • Table 3 shows the same combinations exposed to 3 other fungal species, C. olivacea, G. abietinum, and P. tephropor.
  • Table 5 shows the effect of high uptake of mixtures of kerosene and pale boiled linseed oil.
  • Figure 2 shows the effect of the carrier on the 5 fungi involved in the study. Only the 70:30 ratio of kerosene and pale boiled linseed oil treated at the very high uptake of 400 1/m 3 showed any effect on the fungi. All other carriers had similar weight loss due to fungal activity comparable with untreated timber, indicating that at the level of treatment preferred, the carrier system was not a significant contributor to wood protection. Carrier systems of the present invention, such as for example, the 70:30 ratio of kerosene and pale boiled linseed oil, maybe efficacious alone in preventing fungal decay if used at sufficient impregnation rates. Additional long term studies of decay resistance were carried out by Ensis Wood
  • Framecoat Blue is white spirit containing pale boiled linseed oil at the stated levels.
  • Tanalith T is a high flash solvent, such as heating or diesel oil, plus PBLO at the stated levels, and was applied as an envelope to a depth of approximately 5mm.
  • Framecoat F contained copper naphthenate as the biocide.
  • Framecoat green contained an azole biocide.
  • the stacks were uncovered after twelve weeks and the samples were removed, weighed and assessed for the spread of mycelium from the feeder blocks as follows:
  • each sample was tested with a blunt probe to determine whether the decay fungi were damaging the framing. Staples were removed from one side of the sample so that the end joints could be opened and the internal joint area could also be assessed for decay.
  • the decay rating system used was similar to ASTM D 1758, as follows:
  • the feeder blocks were positioned at the end of the main sample and touching the short end blocks. Mycelium from the feeder blocks had moved onto the surface of almost all treated samples. It had spread more than 5mm in many cases but seldom more than 50mm.
  • the fluffy white Auckland brown rot mycelium was often more prominent than the mycelium from Antrodia xantha and had spread slightly more than Antrodia xantha. Where mycelium was spreading on the surface it had usually penetrated the joint areas and was often accompanied by discolouration of the wood. There was little obvious difference between the preservatives. hi the untreated control samples the mycelium had frequently spread more than 50mm from the feeder blocks across fillets and sealed ends to treated samples.
  • IPBC + 18.8% PBLO IPBC + 18.8% PBLO
  • three in group 13 IPBC + 18.8% PBLO
  • the Framecoat green treated samples in group 14 (0.80% Azole + 9.4% PBLO) contained no decay but five samples in group 15 (0.80% Azole + 18.8% PBLO) contained decay.
  • the Framecoat F samples showed overall less resistance to decay due to the use of a copper resistant fungal strain. However, the degree of decay was still significantly below that seen in the untreated samples. For example, the joint decay score in untreated sample 27 was 7.4, compared to a joint decay score of 9.0 in the treated sample. In general, there appeared to be less decay in groups treated with a lower PBLO concentration.
  • test pieces were then returned to their original positions and left for a further interval of time, whereupon they were re assessed after 26 weeks.
  • Antrodia xantha particularly at the end nearest the wall. On samples where there had been extensive Auckland brown rot mycelium on the surface previously, much of this had degenerated into brown surface discolouration.
  • Figure 5 shows a sample treated with Tanalith T, 0.20% IPBC + 9.4% PBLO, 15 l/m3 after 26 weeks exposure.
  • Mycelium from the Auckland brown rot feeder block had spread onto the surface of the sample and caused some discolouration but there was no surface decay and only very minor decay in the joint.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Forests & Forestry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Cette invention concerne un système de support pour l’imprégnation du bois et l’acheminement d’un ingrédient actif à travers le bois ; le système de support comprend de 10 à 30 % d’une huile siccative ou semi-siccative (comme l’huile de poisson, l’huile de tung, l’huile d’œillette, l’huile de noix, l’huile de carthame et l’huile de tournesol ou, idéalement, l’huile de lin bouillie (PBLO)) et de 70 à 80 % d’une huile de dilution (comme le mazout domestique, le white spirit, le kérosène, le kérosène à point d’éclair élevé et le gazole). Le support peut être utilisé dans une composition comprenant en outre un ou plusieurs agents actifs, comme des insecticides, termicides, fongicides ou agents biocides contre les moisissures. L’invention concerne également un procédé de traitement du bois incluant l’étape de mise en contact du bois avec la composition, et le bois traité résultant.
PCT/AU2005/001680 2004-11-02 2005-11-01 Impregnation de bois WO2006047819A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2004906323 2004-11-02
AU2004906323A AU2004906323A0 (en) 2004-11-02 Timber impregnation

Publications (1)

Publication Number Publication Date
WO2006047819A1 true WO2006047819A1 (fr) 2006-05-11

Family

ID=36318818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2005/001680 WO2006047819A1 (fr) 2004-11-02 2005-11-01 Impregnation de bois

Country Status (1)

Country Link
WO (1) WO2006047819A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007055601A1 (fr) 2005-11-10 2007-05-18 Ivan Laurence Stanimiroff Traitement du bois
WO2009129587A1 (fr) * 2008-04-24 2009-10-29 Arch Wood Protection Pty Ltd Support, formulation et procédé pour le traitement de bois d'œuvre
CN103171007A (zh) * 2011-12-26 2013-06-26 福建省漳平木村林产有限公司 一种防裂防腐木的生产方法及浸注液

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355451A1 (fr) * 1976-02-20 1978-01-20 Sarpap Procede de preparation de compositions biocides pour la preservation des bois
US4814016A (en) * 1987-10-30 1989-03-21 The Clorox Company Waterborne penetrating coating composition and method
EP0227430B1 (fr) * 1985-12-17 1991-07-24 Koppers Australia Pty. Limited Compositions conservatrices
EP0451524A1 (fr) * 1990-04-06 1991-10-16 ACIMA, Aktiengesellschaft für Chemische Industrie Im Ochsensand Méthode de préparation des agents de préservation du bois
WO2002035932A1 (fr) * 2000-11-01 2002-05-10 Kemtek Ltda. Compositions de concentres colloides emulsionnables
WO2002047876A1 (fr) * 2000-12-15 2002-06-20 Koppers-Hickson Timber Protection Pty Limited Materiau et procede de traitement pour bois debite

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355451A1 (fr) * 1976-02-20 1978-01-20 Sarpap Procede de preparation de compositions biocides pour la preservation des bois
EP0227430B1 (fr) * 1985-12-17 1991-07-24 Koppers Australia Pty. Limited Compositions conservatrices
US4814016A (en) * 1987-10-30 1989-03-21 The Clorox Company Waterborne penetrating coating composition and method
EP0451524A1 (fr) * 1990-04-06 1991-10-16 ACIMA, Aktiengesellschaft für Chemische Industrie Im Ochsensand Méthode de préparation des agents de préservation du bois
WO2002035932A1 (fr) * 2000-11-01 2002-05-10 Kemtek Ltda. Compositions de concentres colloides emulsionnables
WO2002047876A1 (fr) * 2000-12-15 2002-06-20 Koppers-Hickson Timber Protection Pty Limited Materiau et procede de traitement pour bois debite

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007055601A1 (fr) 2005-11-10 2007-05-18 Ivan Laurence Stanimiroff Traitement du bois
AU2006312410B2 (en) * 2005-11-10 2010-10-28 Ivan Laurence Stanimiroff Wood treatment
WO2009129587A1 (fr) * 2008-04-24 2009-10-29 Arch Wood Protection Pty Ltd Support, formulation et procédé pour le traitement de bois d'œuvre
CN103171007A (zh) * 2011-12-26 2013-06-26 福建省漳平木村林产有限公司 一种防裂防腐木的生产方法及浸注液

Similar Documents

Publication Publication Date Title
US5462589A (en) Synergistic wood preservative compositions
US7959723B2 (en) Use of biocide compositions for wood preservation
CA2434038C (fr) Materiau et procede de traitement pour bois debite
US20110039031A1 (en) Carrier, formulation and method for the treatment of timber
US20050003190A1 (en) Reactive oil/copper preservative systems for wood products
GB2459691A (en) Antisapstain composition
AU764584B2 (en) Diffusable antisapstain method and compositions
AU2017202684B2 (en) Formulation and method for the treatment of timber
WO2006047819A1 (fr) Impregnation de bois
AU2008205451B2 (en) Material and method for treatment of timber
AU2002215690B2 (en) Material and method for treatment of timber
FI97707B (fi) Puunsuojausmenetelmä
AU2022221409A1 (en) Pyrethroid envelope timber treatment
AU2016219540A1 (en) Reduced drying carrier formulation
AU2016100445A4 (en) A method of treating wood
Melencion et al. Performance of antisapstain compounds on kiln-dried Douglas-fir and hem-fir lumber subjected to rewetting
AU2002215690A1 (en) Material and method for treatment of timber
AU2013202289B2 (en) A method of treating wood
Creffield Efficacy of didecyldimethylammonium chloride against subterranean termites (Isoptera) in Australia
AU2017248458A1 (en) A method of treating wood
Morrell et al. Performance of antisapstain compounds on kiln-dried Douglas-fir and hem-fir lumber subjected to rewetting

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05799205

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载