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Method for distributing chemicals through a fibrous material using low-headspace dielectric heating

United States Patent

August 20, 2002
View the Complete Patent at the US Patent & Trademark Office
System and method for diffusing chemicals rapidly and evenly into and through fibrous material, such as wood. Chemicals are introduced into the fibrous material by applying the chemicals to the fibrous material. After treating the fibrous material with the chemicals, the fibrous material is maintained under low-headspace conditions. Thermal energy or dielectric heating, such as microwave or radio frequency energy, is applied to the fibrous material. As a result, the chemicals are able to distribute evenly and quickly throughout the fibrous material.
Banerjee; Sujit (Marietta, GA), Malcolm; Earl (Bluffton, SC)
Institute of Paper Science and Technology, Inc. (Atlanta, GA)
09/ 570,309
May 12, 2000
GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-FC07-96IDI343, awarded by the U.S. Department of Energy. The Government has certain rights in this Invention.