Composition and process for coloring and preserving wood
AssigneeOsmose Wood Preserving Co. of America, Inc.
InventorRobert M. Leach
Life of this patent
Estimating the term…
Abstract
Method and composition for simultaneously coloring and preserving wood by a single application of a contacting solution comprising any one of several known water soluble chemical preservatives containing any or all of the following heavy metals: copper, chromium and zinc, to which preservative solution has been added one or more specific naphthalene or benzene derivative compounds having hydroxy, amino or sulfonic acid functional groups attached to a ring carbon atom. Without departing from the teachings of this invention the wood may first be treated with the preservative solution and then contacted with the benzene or naphthalene derivative compound. It is also possible to apply the benzene or naphthalene derivative to the wood initially, followed by the application of the preservative solution.
Claims41
A method for treating wood which simultaneously preserves the wood against wood destroying organisms and selectively colors the wood which comprises contacting the wood with an aqueous solution comprising:
- (a) a water soluble wood preservative containing any or all of the following heavy metals:
- copper, chromium, and zinc, and (b) one or more water soluble naphthalene derivatives having at least one sulfonyl group, at least one hydroxyl or amino group, and up to two additional groups selected from the group consisting of sulfonyl, hydroxyl and amino, wherein said groups are attached at any position around the naphthalene ring and the total number of said groups is not greater than 4.
A composition for simultaneously preserving wood against wood destroying organisms and selectively coloring the wood, which comprises an aqueous solution of:
- (a) a water soluble wood preservative containing any or all of the following heavy metals:
- copper, chromium, and zinc, and (b) one or more water soluble naphthalene derivatives having at least one sulfonyl group, at least one hydroxyl or amino group, and up to two additional groups selected from the group consisting of sulfonyl, hydroxyl and amino, wherein said groups are attached at any position around the naphthalene ring and the total number of said groups is not greater than 4.
A method for treating wood which imparts color to the wood and preserves the wood from wood destroying organisms, comprising:
- (a) first, contacting the wood surface with an aqueous derivative solution comprising one or more water soluble naphthalene derivatives having at least one sulfonyl group, at least one hydroxyl or amino group, and up to two additional groups selected from the group consisting of sulfonyl, hydroxyl and amino, wherein said groups are attached at any position around the naphthalene ring and the total number of said groups is not greater than 4, and
- (b) second, contacting the wood surface with an aqueous preservative solution comprising a water soluble preservative containing any or all of the following heavy metals:
- copper, chromium and zinc.
A method for treating wood which imparts color to the wood and preserves the wood from wood destroying organisms comprising:
- (a) first, contacting the wood surface with an aqueous preservative solution of a water soluble preservative containing any or all of the following heavy metals:
- copper, chromium and zinc, and
- (b) second, contacting the wood surface with an aqueous derivative solution of one or more water soluble naphthalene derivatives having at least one sulfonyl group, at least one hydroxyl or amino group, and up to two additional groups selected from the group consisting of sulfonyl, hydroxyl and amino, wherein said groups are attached at any position around the naphthalene ring and the total number of said groups is not greater than 4.
Dependencies are inferred from the claim text.