US 4,379,810 A · Water soluble pentachlorophenol and tetrachlorophenol wood treating systems containing fatty acid amine oxides

Abstract

This invention relates to new and improved chlorinated phenol 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 from 0.1% to about 50% by weight of a chlorophenol selected from a group consisting of pentachlorophenol and tetrachlorophenol and mixtures thereof, from about 1% to about 97% by weight aliphatic alcohols having from 1 to 6 carbon atoms and mixtures thereof, from about 0.2% to about 35% of a fatty acid amine oxide or a mixture of fatty acid amine oxides and other amines, and 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. In practice of this invention, these compositions are incorporated into treating systems that adequately penetrate wood and deposit essentially non-leachable chlorophenols in the wooden objects.

Claims16

Dependent claims

A treated and preserved wooden object having a deposit within the wood fibers of an essentially non-leachable chlorophenol formed therein by

I. forming a wood treating and preserving solution by blending (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 1% to about 97% by weight of an aliphatic alcohol having from one to six carbon atoms and mixtures thereof, (C) from about 0.2% to about 35% by weight of a fatty acid amine oxide having from about 10 to about 32 carbon atoms, (D) from about 1% to about 97% by weight water, and (E) from about 0.2% to about 35% by weight of an amine selected from the group consisting of ammonium hydroxide, triethylamine, trimethylamine, methyl amine and methyldiethanol amine and mixtures thereof;
II. impregnating under heat and pressure the wooden object;
III. separating said wooden object from said solution;
and
IV. drying said treated wooden object.

2 more elements

A treated and preserved wooden object having deposited within the wood fibers an essentially non-leachable chlorophenol formed therein by

I. forming a wood treating and preserving solution by blending (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 1% to about 97% by weight of an aliphatic alcohol having from one to six carbon atoms and mixtures thereof, (C) from about 0.5% to about 35% by weight of a fatty acid amine oxide having from about 10 to about 20 carbon atoms, (D) from about 1% to about 97% by weight water, (E) from about 0.02% to about 20% by weight sodium hydroxide, and (F) from about 0.2% to about 35% by weight of an amine selected from the group consisting of ammonium hydroxide, triethylamine, trimethylamine, methyl amine, and methyldiethanol amine, and mixtures thereof;
II. impregnating under heat and pressure the wooden objects;
III. separating said wooden objects from said solution;
and
IV. drying said treated wooden objects.

2 more elements

Dependencies are inferred from the claim text.

Water soluble pentachlorophenol and tetrachlorophenol wood treating systems containing fatty acid amine oxides

Life of this patent

Water soluble pentachlorophenol and tetrachlorophenol wood treating systems containing fatty acid amine oxides

Life of this patent

Abstract

Claims16