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Flakeboard or particle board panels and other composite articles made from wood flakes or other particulate lignocellulosic materials having a relatively high internal bond and improved resistance to moisture are made from flakes or particles which have a moisture content of at least 15%. A catalyst capable of accelerating the reaction between the flakes or particles, the binder and water is applied to the flakes or particles prior to the addition of a moisture-tolerant particle board binder, such as an organic polyisocyanate. A mat of the resulting furnish is compression shaped under pressure and at a temperature less than 250° F. for a time period sufficient to form a composite article of the desired shape and/or dimensions.
Board of Control of Michigan Technological University, Houghton, Mich.
Certificate of Correction
Engineering | Materials Science and Engineering
Palardy, Robert D.; Haataja, Bruce A.; and Williams, Andrew D., "Method for compression molding articles from lignocellulosic materials" (1991). Michigan Tech Patents. 61.