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US3247059A - Wood protection agents - Google Patents

Wood protection agents Download PDF

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Publication number
US3247059A
US3247059A US255093A US25509363A US3247059A US 3247059 A US3247059 A US 3247059A US 255093 A US255093 A US 255093A US 25509363 A US25509363 A US 25509363A US 3247059 A US3247059 A US 3247059A
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United States
Prior art keywords
wood
ammonium
group
boric acid
boron
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Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US255093A
Inventor
Bauer Dieter
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Bayer AG
Original Assignee
Bayer AG
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Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Priority to ES294126A priority Critical patent/ES294126A2/en
Priority to CH1553363A priority patent/CH468872A/en
Application granted granted Critical
Publication of US3247059A publication Critical patent/US3247059A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00—Boron; Compounds thereof
    • C01B35/06—Boron halogen compounds
    • 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
    • B27K3/16—Inorganic impregnating agents
    • B27K3/30—Compounds of fluorine
    • 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
    • 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
    • B27K3/36—Aliphatic compounds
    • 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
    • B27K3/38—Aromatic compounds
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D21J1/08—Impregnated or coated fibreboard

Definitions

  • the object of the present invention is a new wood protection agent which consists of liquid, water-contaning ammonium fluoroborates with an atomic ratio of boron to fluorine of about 1:1.
  • composition of these ammonium fluoroborates is not known but they may, perhaps, correspond to about the formula:
  • X X X and X may be H, CH C H and C H OH, X X and X may be H and X, may be OH, NHZ, CH3, C2H5, C3H7 and C2H4OH, X1 and X2 may be H and X3 and X4 may be CH3, C2H5, C3H7 and CZHQOH, X, may be H and X X and X, may be CH C H C H and C H OH, and X X and X, may be CH and These compounds are obtained by the mixing of, for example, 1 mol of ammonium bifluoride with 2 mols of boric acid with the addition of some water and possibly CROSS RE't'EiiEilCE nited States Patent 0 some excess of ammonia and/or excess of ammonium compound, such as hydroxyl amine, hydrazine, methyl, dimethyl or trimethyl amine, ethyl, diethyl of tri
  • ammonium bifluoride instead of ammonium bifluoride, it is also possible to start from ammonium fluoride or from mixtures of hydrofluoric acid with ammonia or ammonium bases and, instead of from boric acid, from partially anhydrous boric acid or boric anhydride. If desired, some urea can also be added.
  • ammonium fluoroborates are characterized by an exceptionally high solubility in water.
  • about 900 parts dissolve in 100 parts of water.
  • wood or wood-containing materials such as wood shavings which are to be worked up to chip boards, take up so much wood protection agent by a single treatment with the wood protection agent, for example, by a single dipping or by painting or spraying, that they become difficultly inflammable.
  • the wood protection agent for example, by a single dipping or by painting or spraying.
  • the fungicidal and insecticidal properties of the ammoniumfluoroborates the wood is also substantially protected against the attack by biological destructive agencies, such as fungi and insects.
  • the new wood protection agent also has the further advantage that it does not affect the ability to be glued of the wood treated therewith. A special drying of the wood or of the wood-containing materials before glueing is not necessary, because of the low water content of the new wood protection agent.
  • a good protection of the wood is obtained when about 50250 grams, and especially about 100*200 grams, of the wood protective agent (referred to the solid content of the agent) is applied to square meter of wood or with an addition of about 3-10 percent by weight of wood protective agent, referred to absolutely dry wood, in the case of wood materials.
  • the wood protective agent referred to the solid content of the agent
  • boronand fluorine-containing wood protection agents are known which correspond to the general formula:
  • boron fluorides of this type are less soluble than the ammonium fluoroborates. Therefore, their concentration in the wood is, as a rule, much too low to be able to make the wood diflicultly inflammable. Their importance lies, on the contrary, in the protection of the wood against biological destructive agencies, especially when they are used together with chromates and/or arsenates so that, by a suitable choice of the additional materials, well-fixed precipitates are formed in the wood.
  • the ammonium fluoroborates are, with regard to their solubility in water, also significantly superior to the known phosphate combination flame-proofing agents, which are mainly ammonium phosphates with an addition of fluorides or borates or boric acid.
  • the phosphate combinations dissolve in water at 20 C. only to an extent of about 70 parts in about 100 parts of water. In order to achieve a sufficiently difiicult inflammability of the wood with them, it is, consequently, necessary to apply several treatments of the wood with these agents. Furthermore, the wood treated with such phosphate combinations must be dried before glueing which, as mentioned, is not necessary in the case of the use of the ammonium fluoroborates according to the present invention.
  • Example 1 which contains 925 parts by weight, referred to the solid starting materials, in parts by weight of water.
  • Rough sawn pine planks of 20 millimeters thickness are impregnated with the solution by painting once with an amount of about grams/mi After drying, the so treated wood is difficultly inflammable and also protected against-wood-destroying fungi, such as Poria vaporaris, and against wood-destroying insects, such as the larvae of the death watch beetle.
  • Example 2 To a mixture of 6 mols of boric acid and 3 mols of ethanol amine there are dropped under cooling 6 mols of hydrofluoric acid as a 40 percent aqueous solution. There is obtained a highly concentrated aqueous solutionof the wood protection agent which is ready to be used for impregnating wood.
  • the aforesaid fluoroborate solution is mixed with an adhesive, for instance, an urea formaldehyde resin.
  • the working up of the wood shavings with said adhesive and protection composition to the chip board is carried out as known in the art. An interim drying of the shavings is not necessary.
  • a method for protecting wood against insects, fungus and fire which comprises treating wood with an effective amount of a wood protecting agent comprising ammonium fluoroborates containing nitrogen, fluorine and boron in an atomic ratio of about 1:2:2, obtained by mixing corresponding proportions of a fluoro compound states selected from the group consisting of hydrofluoric acid, ammonium bifluoride, and ammonium fluoride, a boron compound selected from the group consisting of boric acid and boric acid anhydride, and a nitrogen base selccted from the group consisting of ammonia, hydroXyl amine, hydrazine, amino alkane having up to 3 carbon atoms, amino toluene, and amino ethanol, in the presence of water.
  • a wood protecting agent comprising ammonium fluoroborates containing nitrogen, fluorine and boron in an atomic ratio of about 1:2:2, obtained by mixing corresponding proportions of a fluoro compound states selected from the group consisting of hydrofluoric

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

4 Claims. ci. 167-38.6)
The object of the present invention is a new wood protection agent which consists of liquid, water-contaning ammonium fluoroborates with an atomic ratio of boron to fluorine of about 1:1.
The precise "composition of these ammonium fluoroborates is not known but they may, perhaps, correspond to about the formula:
wherein X X X and X, may be H, CH C H and C H OH, X X and X may be H and X, may be OH, NHZ, CH3, C2H5, C3H7 and C2H4OH, X1 and X2 may be H and X3 and X4 may be CH3, C2H5, C3H7 and CZHQOH, X, may be H and X X and X, may be CH C H C H and C H OH, and X X and X, may be CH and These compounds are obtained by the mixing of, for example, 1 mol of ammonium bifluoride with 2 mols of boric acid with the addition of some water and possibly CROSS RE't'EiiEilCE nited States Patent 0 some excess of ammonia and/or excess of ammonium compound, such as hydroxyl amine, hydrazine, methyl, dimethyl or trimethyl amine, ethyl, diethyl of triethyl amine, propyl, dipropyl or tripropyl amine, ethanol amine, diethanol amine or triethanol amine or diethyl benzyl amine. Instead of ammonium bifluoride, it is also possible to start from ammonium fluoride or from mixtures of hydrofluoric acid with ammonia or ammonium bases and, instead of from boric acid, from partially anhydrous boric acid or boric anhydride. If desired, some urea can also be added.
In comparison with the known wood protection agents, the ammonium fluoroborates are characterized by an exceptionally high solubility in water. At 20 C., about 900 parts (referred to the solid starting materials) dissolve in 100 parts of water.
This has the result that wood or wood-containing materials, such as wood shavings which are to be worked up to chip boards, take up so much wood protection agent by a single treatment with the wood protection agent, for example, by a single dipping or by painting or spraying, that they become difficultly inflammable. As a result of the fungicidal and insecticidal properties of the ammoniumfluoroborates, the wood is also substantially protected against the attack by biological destructive agencies, such as fungi and insects.
The new wood protection agent also has the further advantage that it does not affect the ability to be glued of the wood treated therewith. A special drying of the wood or of the wood-containing materials before glueing is not necessary, because of the low water content of the new wood protection agent.
As a rule, a good protection of the wood is obtained when about 50250 grams, and especially about 100*200 grams, of the wood protective agent (referred to the solid content of the agent) is applied to square meter of wood or with an addition of about 3-10 percent by weight of wood protective agent, referred to absolutely dry wood, in the case of wood materials. I
3,247,059 Patented Apr. 19, 1966 2 If desired, other known flame-proofing materials i and' wood protecting agents, sucli ifs"ammoniumsulphatej can be added to the liquid, water-containing ammonium fluoroborates.
Admittedly, boronand fluorine-containing wood protection agents are known which correspond to the general formula:
in which, consequently, the atomic ratio boron to fluorine amounts to 1:2 to 1:4 and wherein Me(I) signifies a monovalent cation. However, boron fluorides of this type are less soluble than the ammonium fluoroborates. Therefore, their concentration in the wood is, as a rule, much too low to be able to make the wood diflicultly inflammable. Their importance lies, on the contrary, in the protection of the wood against biological destructive agencies, especially when they are used together with chromates and/or arsenates so that, by a suitable choice of the additional materials, well-fixed precipitates are formed in the wood.
The ammonium fluoroborates are, with regard to their solubility in water, also significantly superior to the known phosphate combination flame-proofing agents, which are mainly ammonium phosphates with an addition of fluorides or borates or boric acid. The phosphate combinations dissolve in water at 20 C. only to an extent of about 70 parts in about 100 parts of water. In order to achieve a sufficiently difiicult inflammability of the wood with them, it is, consequently, necessary to apply several treatments of the wood with these agents. Furthermore, the wood treated with such phosphate combinations must be dried before glueing which, as mentioned, is not necessary in the case of the use of the ammonium fluoroborates according to the present invention.
The following examples are given for the purpose of illustrating the present invention:
Example 1 which contains 925 parts by weight, referred to the solid starting materials, in parts by weight of water.
Rough sawn pine planks of 20 millimeters thickness are impregnated with the solution by painting once with an amount of about grams/mi After drying, the so treated wood is difficultly inflammable and also protected against-wood-destroying fungi, such as Poria vaporaris, and against wood-destroying insects, such as the larvae of the death watch beetle.
Example 2 To a mixture of 6 mols of boric acid and 3 mols of ethanol amine there are dropped under cooling 6 mols of hydrofluoric acid as a 40 percent aqueous solution. There is obtained a highly concentrated aqueous solutionof the wood protection agent which is ready to be used for impregnating wood. For the production of laminated wooden plates, for instance, chip boards, the aforesaid fluoroborate solution is mixed with an adhesive, for instance, an urea formaldehyde resin. The working up of the wood shavings with said adhesive and protection composition to the chip board is carried out as known in the art. An interim drying of the shavings is not necessary.
I claim:
1. A method for protecting wood against insects, fungus and fire which comprises treating wood with an effective amount of a wood protecting agent comprising ammonium fluoroborates containing nitrogen, fluorine and boron in an atomic ratio of about 1:2:2, obtained by mixing corresponding proportions of a fluoro compound states selected from the group consisting of hydrofluoric acid, ammonium bifluoride, and ammonium fluoride, a boron compound selected from the group consisting of boric acid and boric acid anhydride, and a nitrogen base selccted from the group consisting of ammonia, hydroXyl amine, hydrazine, amino alkane having up to 3 carbon atoms, amino toluene, and amino ethanol, in the presence of water.
2. The method of claim 1 wherein the Wood protecting agent is used in an amount of from 50 to 250 grams per square meter of wood.
3. Wood protected against insects, fungus and fire containing an eflective amount of a wood protecting agent comprising ammonium fluoroborates containing nitrogen, fluorine and boron in an atomic ratio of about 1:222, obtained by mixing corresponding proportions of a fluoro compound selectedvfrom the group consisting of hydrofluoric acid, ammonium bifluoride, and ammonium fluoride, a boron compound selected from the groupconsisting of boric acid and boric acid anhydride, and a nitrogen 20 base selected from the group consisting of ammonia, hy-
References Cited by the Examiner UNITED STATES PATENTS 2,395,311 2/1946 Woodhouse et a1. 117-147 2,726,189 12/1955 Cook 167--38.6 2,757,121 7/1956 Fahlstrom 16738.6 2,799,556 7/1957 Sullivan et a1. 2359 2,948,641 8/1960 McCluer 10615 3,071,618 1/1963 Pinson 260-567.6 3,076,835 2/1963 Kay et a1. 260462 3,119,654 1/1964 Cunningham 2359 3,169,983 2/1965 Hunter 260-462 JULIAN S. LEVITT, Primary Examiner.

Claims (1)

1. A METHOD FOR PROTECTING WOOD AGAINST INSECTS, FUNGUS AND FIRE WHICH COMPRISES TREATING WOOD WITH AN EFFECTIVE AMOUNT OF A WOOD PROTECTING AGENT COMPRISING AMMONIUM FLUOROBORATES CONTAINING NITROGEN, FLUORINE AND BORON IN AN ATOMIC RATIO OF ABOUT 1:2:2, OBTAINED BY MIXING CORRESPONDING PROPORTIONS OF A FLUROR COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROFLUORIC ACID, AMMONIUM BIFLUORIDE, AND AMMONIUM GLUORIDE, A BORON COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND BORIC ACID ANHYDRIDE, AND A NITROGEN BASE SELECTED FROM THE GROUP CONSISTING OF AMMONIA, HYDROXYL AMINE, HYDRAZINE, AMINO ALKANE HAVING UP TO 3 CARON ATOMS, AMINO TOLUENE, AND AMINO ETHANOL, IN THE PRESENCE OF WATER.
US255093A 1962-02-06 1963-01-30 Wood protection agents Expired - Lifetime US3247059A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES294126A ES294126A2 (en) 1962-02-06 1963-12-03 A procedure for the manufacture of a protective wood product (Machine-translation by Google Translate, not legally binding)
CH1553363A CH468872A (en) 1963-01-29 1963-12-17 Use of fluoborates as a wood preservative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF35944A DE1218136B (en) 1962-02-06 1962-02-06 Wood preservatives

Publications (1)

Publication Number Publication Date
US3247059A true US3247059A (en) 1966-04-19

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US255093A Expired - Lifetime US3247059A (en) 1962-02-06 1963-01-30 Wood protection agents

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US (1) US3247059A (en)
AT (1) AT248675B (en)
CH (1) CH437747A (en)
DE (1) DE1218136B (en)
ES (1) ES294126A2 (en)
FR (2) FR1340652A (en)
GB (2) GB1019041A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767458A (en) * 1986-09-15 1988-08-30 Desowag Materialschutz Gmbh Wood preservative composition and use thereof
US4824484A (en) * 1987-04-28 1989-04-25 Desowag Materialschutz Gmbh Agent for preserving wood or wood-based materials and method for preparation and use thereof
US5612046A (en) * 1991-04-12 1997-03-18 Saneish Pty Ltd. Production of shaped bodies which have fungicidal and insecticidal properties
CN106625948A (en) * 2016-12-02 2017-05-10 攀枝花学院 Soaking liquid for moth, crack and fire resistance of wood and preparation method of soaking liquid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2707455B1 (en) * 1993-06-30 2004-09-10 Lacaussade Andre Preventing the reproduction of xylophagous insects, means for the preventive treatment of the wood material used.
CN102755878B (en) * 2012-07-27 2014-04-09 福州赛孚玛尼环保科技有限公司 Chemical modification method for sawdust material used for purification
RU2726065C1 (en) * 2019-04-16 2020-07-08 Сергей Анатольевич Максименко Water-soluble flame-retardant compound

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395311A (en) * 1941-10-04 1946-02-19 Du Pont Treatment of wood
US2726189A (en) * 1951-06-19 1955-12-06 Hickson S Timber Impregnation Compositions and methods for the preservation of timber
US2757121A (en) * 1953-05-18 1956-07-31 Osmose Wood Preserving Co Fire retardant wood preserving composition
US2799556A (en) * 1954-02-01 1957-07-16 American Agricultural Chem Co Manufacture of ammonium fluoborate
US2948641A (en) * 1957-07-22 1960-08-09 Thermoid Company Flame retarding composition and fabric treated therewith
US3071618A (en) * 1956-02-02 1963-01-01 Pfizer & Co C Diquaternary ammonium salts of n, n, n', n'-tetra substituted alkylene diamines
US3076835A (en) * 1961-01-17 1963-02-05 Texaco Inc Amine salts of boron acids and esters
US3119654A (en) * 1961-05-02 1964-01-28 Grace W R & Co Production of alkali metal fluoborate
US3169983A (en) * 1962-06-11 1965-02-16 United States Borax Chem Quaternary ammonium glycol monoborate salts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE675400C (en) * 1934-09-16 1939-05-08 Chem Fab Gruenau Akt Ges Preservatives
DE1019817B (en) * 1955-09-02 1957-11-21 FIXABLE, FLUORINE COMPOUNDS, CHROMATES AND, IF APPLICABLE, ARSENIC COMPOUNDS CONTAINING WOOD PROTECTIVE AGENT
US2823145A (en) * 1956-03-21 1958-02-11 Du Pont Flameproofing with alkali metal fluoride and a member of the group consisting of boric acid and anhydride
DE1107923B (en) * 1957-10-15 1961-05-31 Wolman Gmbh Dr Wood preservatives

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395311A (en) * 1941-10-04 1946-02-19 Du Pont Treatment of wood
US2726189A (en) * 1951-06-19 1955-12-06 Hickson S Timber Impregnation Compositions and methods for the preservation of timber
US2757121A (en) * 1953-05-18 1956-07-31 Osmose Wood Preserving Co Fire retardant wood preserving composition
US2799556A (en) * 1954-02-01 1957-07-16 American Agricultural Chem Co Manufacture of ammonium fluoborate
US3071618A (en) * 1956-02-02 1963-01-01 Pfizer & Co C Diquaternary ammonium salts of n, n, n', n'-tetra substituted alkylene diamines
US2948641A (en) * 1957-07-22 1960-08-09 Thermoid Company Flame retarding composition and fabric treated therewith
US3076835A (en) * 1961-01-17 1963-02-05 Texaco Inc Amine salts of boron acids and esters
US3119654A (en) * 1961-05-02 1964-01-28 Grace W R & Co Production of alkali metal fluoborate
US3169983A (en) * 1962-06-11 1965-02-16 United States Borax Chem Quaternary ammonium glycol monoborate salts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767458A (en) * 1986-09-15 1988-08-30 Desowag Materialschutz Gmbh Wood preservative composition and use thereof
US4824484A (en) * 1987-04-28 1989-04-25 Desowag Materialschutz Gmbh Agent for preserving wood or wood-based materials and method for preparation and use thereof
US5612046A (en) * 1991-04-12 1997-03-18 Saneish Pty Ltd. Production of shaped bodies which have fungicidal and insecticidal properties
CN106625948A (en) * 2016-12-02 2017-05-10 攀枝花学院 Soaking liquid for moth, crack and fire resistance of wood and preparation method of soaking liquid

Also Published As

Publication number Publication date
AT248675B (en) 1966-08-10
FR1340652A (en) 1963-10-18
ES294126A2 (en) 1964-03-01
CH437747A (en) 1967-06-15
DE1218136B (en) 1966-06-02
GB1019041A (en) 1966-02-02
FR85049E (en) 1965-05-28
GB1019042A (en) 1966-02-02

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