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US 4,379,073 AGranted
Composition for wood treatment
OwnerCharles J. Zimmermaninventor
Life of this patent
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Abstract
A chemical composition is provided for preservation of wood from rot and the elements whereby the final wood is finished to a brown color wherein said brown color is color fast for several years.
Claims3
A wood preservative for pressure treating wood, said wood preservative comprising:
- (a) chromated copper arsenate;
- (b) 1-amino-8-naphthol-3,6-disulfonic acid;
- (c) brown acid dye;
- and
- (d) mixing chromated copper arsenate, 1-amino-8-naphthol-3, 6-disulfonic acid and brown acid dye together in the following proportions:
- Three pounds of 1-amino-8-naphthol-3, 6-disulfonic acid with nine pounds of brown acid dye and 1,000 gallons of 2.5% or less of chromated copper acid.
3 more elements
Dependencies are inferred from the claim text.