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US4288249A Expired / Lapsed US ⏱️ 0.0 years remaining

Water soluble pentachlorophenol and tetrachlorophenol wood treating systems

Assignee: Reichhold Chemicals Inc
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Filing: 1980-08-11
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Granted: 1981-09-08
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Expires: 2000-08-11
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Abstract

Abstract This invention relates generally to water soluble wood treating compositions and methods for preservation of wood or products made from wood. In the general practice of this invention, wooden objects are treated with water soluble wood treating and preserving solutions consisting of blends of (A) from 0.1% to about 50% by weight of a chlorophenol selected from a group consisting of pentachlorophenol and tetrachlorophenol and mixtures thereof (B) from about 2% to about 98% by weight aliphatic alcohols selected from the group consisting of n-butyl alcohol, secondary butyl alcohol, isobutyl alcohol, tertiary butyl alcohol and isopropyl alcohol and mixtures thereof (C) from about 0.56% to about 45% of an amine selected from the group consisting of ammonium hydroxide, triethyl amine, trimethyl amine, methyl amine and methyldiethanolamine and mixtures thereof and (D) from about 1% to about 97% by weight water. In addition, these wood treating formulations may contain up to 10% by weight of added ingredients selected from the group of tetrasodium pyrophosphate, copper salts, sodium chromates, sodium gluconate, sodium citrate, sodium n-dihydroxyethylglycinate and/or up to 20% by weight ammonium or sodium lignin sulfonate.

Inventors

  • 👤 Joseph Amundsen
  • 👤 Robert J. Goodwin
  • 👤 William H. Wetzel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 00:26
CPC Classifications
A; A01; A01N; A01N31/00; A01N31/08; A01N31/10; B; B27; B27K; B27K3/00; B27K3/34; B27K3/36; B27K3/38; B27K3/40; B27K3/50; B27K3/52

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 110 words
Water soluble wood treating and preserving solutions consisting of blends of (A) from about 0.1% to about 50% by weight of a chlorophenol selected from a group consisting of pentachlorophenol and tetrachlorophenol and mixtures thereof (B) from about 2% to about 98% by weight aliphatic alcohols selected from the group consisting of N-butyl alcohol, secondary butyl alcohol, isobutyl alcohol, tertiary butyl alcohol and isopropyl alcohol and mixtures thereof (C) from about 0.56% to about 45% by weight of an amine selected from the group consisting of ammonium hydroxide, triethylamine, trimethyl amine, methyl amine and methyldiethanol amine and mixtures thereof and (D) from about 1% to about 97% by weight water.
Claim 2
Dependent Claim 110 words
Water soluble wood treating and preserving solutions consisting of blends of (A) from about 0.1% to about 50% by weight of a chlorophenol selected from a group consisting of pentachlorophenol and tetrachlorophenol and mixtures thereof (B) from about 2% to about 98% by weight aliphatic alcohols selected from the group consisting of N-butyl alcohol, secondary butyl alcohol, isobutyl alcohol, tertiary butyl alcohol and isopropyl alcohol and mixtures thereof (C) from about 0.56% to about 45% by weight of an amine selected from the group consisting of ammonium hydroxide, triethylamine, trimethyl amine, methyl amine and methyldiethanol amine and mixtures thereof and (D) from about 1% to about 97% by weight water.
Claim 3
Dependent Claim 39 words
The water soluble wood treating and preserving solutions according to claim 1 further containing at least one member selected from the group consisting of: tetrasodium pyrophosphate, copper salts, sodium citrate, sodium n-dihydroxyethylglycinate, ammonium lignin sulfonate and sodium lignin sulfonate.
Claim 4
Dependent Claim 122 words
Water soluble wood treating and preserving solutions consisting of blends of (A) from about 0.1% to about 50% by weight of a chlorophenol selected from a group consisting of pentachlorophenol and tetrachlorophenol and mixtures thereof (B) from about 2% to about 98% by weight aliphatic alcohols selected from the group consisting of N-butyl alcohol, secondary butyl alcohol, isobutyl alcohol, tertiary butyl alcohol and isopropyl alcohol and mixtures thereof (C) from about 0.56% to about 45% by weight of an amine selected from the group consisting of ammonium hydroxide, triethyl amine, trimethyl amine, methyl amine and methyldiethanol amine and mixtures thereof (D) from about 1% to about 97% by weight water and (E) and from 0.02% to about 20% by weight sodium hydroxide.
Claim 5
Dependent Claim 122 words
Water soluble wood treating and preserving solutions consisting of blends of (A) from about 0.1% to about 50% by weight of a chlorophenol selected from a group consisting of pentachlorophenol and tetrachlorophenol and mixtures thereof (B) from about 2% to about 98% by weight aliphatic alcohols selected from the group consisting of N-butyl alcohol, secondary butyl alcohol, isobutyl alcohol, tertiary butyl alcohol and isopropyl alcohol and mixtures thereof (C) from about 0.56% to about 45% by weight of an amine selected from the group consisting of ammonium hydroxide, triethyl amine, trimethyl amine, methyl amine and methyldiethanol amine and mixtures thereof (D) from about 1% to about 97% by weight water and (E) and from 0.02% to about 20% by weight sodium hydroxide.
Claim 6
Dependent Claim 39 words
The water soluble wood treating and preserving solutions according to claim 3 further containing at least one member selected from the group consisting of: tetrasodium pyrophosphate, copper salts, sodium citrate, sodium n-dihydroxyethylglycinate, ammonium lignin sulfonate and sodium lignin sulfonate.

References Cited (Backward Citations)

US1919298A Cited
US2322633A Cited
US2908607A Cited
US3281318A Cited
US3993752A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-09-07 1985-03-09 1985-09-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-09-07 1989-03-09 1989-09-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-09-07 1993-03-09 1993-09-08 $7700.00 Window Closed / Lapsed

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