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US 2019/0289851 A1Published application
Surface-treating wood to prevent discoloration
OwnerGeoffrey Vern Webbinventor
Life of this patent
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Abstract
An aqueous dispersion of octylisothiazolinone (“OIT”) has been found to be useful for delivering OIT to wood for protecting the wood from fungal discoloration. The OIT dispersion can be applied to the wood to develop a protective barrier of relatively preservative at or near the exterior surface of the wood piece.
Claims35
1-28:
- (canceled)
A process for increasing the resistance of wood to fungal discoloration, comprising:
- immersing wood in a two-phase composition, comprising:
- a disperse phase in the form of solid or liquid particles having a mean average size the range of about 5 to about 50 microns, wherein the disperse phase comprises an octylisothiazolinone and a surfactant;
- and
- a continuous liquid phase comprising water,
- under pressure in the range of about 125 psig to about 225 psig to cause the octylisothiazolinone to become concentrated within the cell voids of cells that are located at or near the exterior surface of the wood piece.
2 more elements
A process for creating a barrier at or near the exterior of a wood piece to increase the resistance of the wood piece to fungal discoloration, comprising:
- immersing a wood piece under pressure in the range of about 125 psig to about 225 psig in a two phase composition, comprising:
- a disperse phase in the form of solid or liquid particles having a mean average size in the range of about 5 to about 50 microns,
- wherein the disperse phase comprises an octylisothiazolinone and a surfactant;
- and
- a continuous liquid phase comprising water.
2 more elements
Dependencies are inferred from the claim text.