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US 8,603,576 B2Granted
Compositions and methods for treating cellulose based materials with micronized additives
AssigneeOsmose, Inc.
InventorsRobert M. Leach, Jun Zhang
Life of this patent
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Abstract
A composition for treating cellulosic materials is provided. The composition comprises a dispersion of micronized additives. The dispersion comprises additive particles with diameters in the range of 0.001 to 25 microns. Also provided is a method for the application of the additive-containing composition to wood, as well as wood products which have been treated with the composition.
Claims16
A process for treating wood, said process comprising the steps of:
- a) providing an aqueous composition comprising one or more solid particles of an additive dispersed in water having diameters in the range of 0.001 to 25 microns;
- b) applying said composition to wood such that at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood;
- wherein the additive is an iron oxide;
- greater than 80 weight percent of the particles have diameters less than 1 micron;
- and the additive is applied to the wood by pressure treatment, vacuum treatment or both.
2 more elements
Wood comprising:
- a) an aqueous composition comprising one or more solid particles of an additive dispersed in water having diameters in the range of 0.001 to 25 microns;
- b) wherein at least some of the particles penetrate the surface of the wood and are distributed throughout a cross section of the wood;
- c) wherein the additive is an iron oxide;
- and greater than 80 weight percent of the particles have diameters less than 1 micron.
1 more element
Dependencies are inferred from the claim text.