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
  • B27K3/34—Organic impregnating agents
  • B27K3/44—Tar; Mineral oil
  • B27K3/46—Coal tar
• • 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
  • B27K3/50—Mixtures of different organic impregnating agents

Definitions

• the present invention relates to means based on coal tar oil for the Protective treatment of wood. It also relates to a protective treatment procedure of wood using the agents according to the invention.
• coal tar oil to protect wood against rotting and insect attack has been known since the middle of the 19th century and has been known for Conservation of masts, fences, sleepers etc. in use.
• coal tar oil in the form of emulsions in water or aqueous Protective salt solutions (zinc salts, copper salts) apply. This form of application
• tar oils continued to be the majority were used in the undiluted state.
• homoogenization analogous to that in Milk
• dispersers e.g.
• a disadvantage of this known method is the fact that the emulsions are proportional are unstable and that the effective proportion of coal tar due to the emulsion is reduced by the proportion of water and the emulsifier (s), so that the The amount to be introduced must be increased in order to provide effective and lasting protection guarantee.
• JP-A-56072502 describes compositions for wood protection treatment the Coal tar oil, quaternary Ammonium compounds and Contain water.
• the object of the present invention was therefore the disadvantages of the known production processes and to eliminate or reduce applications of tar oil emulsions. According to the invention, this object is achieved by the means according to claim 1 and the Treatment method according to claim 6 solved.
• the pungent smell of coal tar oil is particularly evident in two- and three-core Aromatics, e.g. B. naphthalene and alkylnaphthalenes. Leave this only partially separate by distillation, since after their complete removal a tar oil If the viscosity is too high and cannot be handled even at 100-120 ° C.
• the Agents according to the invention also permit use by the nature of their preparation more viscous and thus highly deodorized tar oils, which is the use of coal tar oil also in sensitive areas, e.g. B. thresholds for subways, facilitated or makes it possible in the first place.
• the agents according to the invention preferably contain to improve the (storage) Stability up to 20 parts of a polyglycol compound.
• a polyglycol compound include, for example Polyethylene glycols and polypropylene glycols, as well as their alkyl and aryl ethers and esters.
• Polyethylene glycol compounds such as, for example, are particularly preferred Polyethylene glycol, ethoxylated phenols and diethylene glycol monobutyl ether.
• These preferably contain one or more constituents from the group of the resins, Binders, waxes, dyes and pigments.
• Particularly preferred binders are alkyd resins and similar resins based on natural oils such as linseed oil or soybean oil, especially those that are reacted with Ethylene oxide or propylene oxide are water-soluble or water-dilutable.
• the agents according to the invention contain to broaden the spectrum of action preferably additionally an effective amount of one or more insecticides, fungicides, Algicides or bactericides.
• binders such.
• B. drying alkyd resins, acrylates or others Polymers can improve the surfaces of the treated wood mechanically and optically, combined with a further reduction in mobility (leaching and Bleeding) of coal tar oil.
• the systems according to the invention can still be used in contrast to coal tar oil by adding dyes or pigments alone Modify in such a way that the treated wood can be colored can.
• By adding waxes it is possible to mattify the surfaces of the treated wood, combined with a strong water-repellent Effect that reduces the absorption of dripping water without the moisture exchange to hinder over the vapor phase.
• This preparation forms stable, milky (opaque) or clear mixtures with a low viscosity that can be introduced into the wood with good penetration and without penetration by means of a boiler pressure process (application of vacuum and pressure).
• a boiler pressure process application of vacuum and pressure.
• the amount required for comprehensive protection of the wood is 20-80 kg / m 3 wood.
• the agents according to the invention are preferably used in vacuum boiler pressure systems such that the means by means of pressure differences in the to be protected Wood.
• the process steps include a pre-vacuum phase, a Flood phase, while maintaining the vacuum, and a pressure phase. If necessary the process is completed with a final vacuum. Control of the brought in Protective agent mass is made by weighing. For easily soakable woods or types of wood the water content in the compositions can be increased even further compared to the examples become.
• the impregnation is preferably carried out without the addition of heat, that is to say approximately at ambient temperature. If necessary, the water introduced into the wood with the agents can be removed by heat treatment. If the preparations also contain polymers that are suitable for curing under the influence of elevated temperatures, the wood can be treated with superheated steam. This vaporization then leads to post-diffusion and more even distribution of the agents, combined with more effective fixation. Polyethylene glycols that may be present in the preparations give them a dimensionally stabilizing effect, combined with a significantly reduced tendency of the wood treated with them to crack.
• coal tar 8 parts N -Cocosalkyl- N, N -dimethyl- N -benzylammonium acetate 4 parts Nonylphenol ethoxylate (8-12 EO groups) 10 parts diethylene 38 pieces water
• coal tar 10 parts N- cocoalkyl- N, N -dimethyl- N -benzylammonium chloride 10 parts Polyethylene glycol (MW approx. 300) 30 parts water
• coal tar 8 parts N -Cocosalkyl- N, N -dimethyl- N -benzylammonium acetate 4 parts Nonylphenol ethoxylate (8-12 EO groups) 10 parts diethylene 8 parts binder 30 parts water
• coal tar 10 parts N- cocoalkyl- N, N -dimethyl- N -benzylammonium chloride 10 parts Polyethylene glycol (MW approx. 300) 2 parts wax 28 parts water
• a concentrate was produced according to the following recipe: 60 parts Coal tar oil, type B WEI 20 parts N, N -didecyl- N -methyl- N -poly (oxethyl) ammonium propionate 20 parts Binder prepared by heating 94 parts of linseed oil and 3 parts of maleic acid to 180 ° C and subsequent esterification with 3 parts of polyethylene glycol (10 EO groups) at 195 ° C
• the concentrate thus obtained was ready for use with water in a ratio of 1: 9 Diluted emulsion.
• a concentrate was produced according to the following recipe: 65 parts Coal tar oil, type B WEI 15 parts N, N -didecyl- N -methyl- N -poly (oxethyl) ammonium propionate 15 parts Binder made by heating 92 parts of soybean oil and 3 parts of maleic acid to 180 ° C and subsequent esterification with 5 parts of polypropylene glycol (12 PO groups) at 170 ° C 1st chapter Silicon defoamer 1st chapter propiconazole 3 parts water
• a concentrate was produced according to the following recipe: 70 parts Coal tar oil, type B WEI 10 parts N, N -didecyl- N -methyl- N -poly (oxethyl) ammonium propionate 19 parts Binder made by heating 85 parts of polybutadiene oil and 5 parts of maleic acid to 150 ° C and subsequent esterification with 10 parts of polyethylene glycol (10 EO groups) at 150 ° C 1st chapter oil-soluble dye
• the concentrate thus obtained was ready for use with water in a ratio of 1: 9 Diluted emulsion.
• a concentrate was produced according to the following recipe: 60 parts Coal tar oil, type B WEI 10 parts N, N -didecyl- N, N -dimethylammonium chloride, 80% in water 19 parts Binder made by heating 80 parts linseed oil and 12 parts neopentyl glycol to 170 ° C and then reacting with 8 parts ethylene oxide under pressure 10 parts diethylene
• the concentrate thus obtained was ready for use with water in a ratio of 1: 9 Diluted emulsion.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Forests & Forestry (AREA)
• Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Chemical And Physical Treatments For Wood And The Like (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)

Priority Applications (1)

Applications Claiming Priority (5)

Publications (2)

Family

ID=26047351

Family Applications (1)

Country Status (19)

Families Citing this family (6)

Family Cites Families (6)

• 1999
  • 1999-06-12 DE DE29923154U patent/DE29923154U1/de not_active Expired - Lifetime
  • 1999-07-02 EP EP99926219A patent/EP1097031B1/de not_active Expired - Lifetime
  • 1999-07-02 WO PCT/CH1999/000288 patent/WO2000002716A1/de active IP Right Grant
  • 1999-07-02 PT PT99926219T patent/PT1097031E/pt unknown
  • 1999-07-02 ES ES99926219T patent/ES2211097T3/es not_active Expired - Lifetime
  • 1999-07-02 NZ NZ509289A patent/NZ509289A/en not_active IP Right Cessation
  • 1999-07-02 CA CA002336931A patent/CA2336931C/en not_active Expired - Fee Related
  • 1999-07-02 DK DK99926219T patent/DK1097031T3/da active
  • 1999-07-02 BR BRPI9912049-6A patent/BR9912049B1/pt not_active IP Right Cessation
  • 1999-07-02 SK SK2035-2000A patent/SK285573B6/sk not_active IP Right Cessation
  • 1999-07-02 AU AU43566/99A patent/AU759694B2/en not_active Ceased
  • 1999-07-02 PL PL345611A patent/PL191467B1/pl unknown
  • 1999-07-02 TR TR2001/00041T patent/TR200100041T2/tr unknown
  • 1999-07-02 HU HU0102995A patent/HU229630B1/hu not_active IP Right Cessation
  • 1999-07-02 AT AT99926219T patent/ATE253438T1/de active
  • 1999-07-02 CZ CZ20010040A patent/CZ299917B6/cs not_active IP Right Cessation
  • 1999-07-02 EE EEP200100024A patent/EE04793B1/xx not_active IP Right Cessation
  • 1999-07-21 IL IL14066699A patent/IL140666A0/xx not_active IP Right Cessation
• 2001
  • 2001-01-11 NO NO20010183A patent/NO323895B1/no not_active IP Right Cessation

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