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US 7,404,918 B1Granted
Wood-based product treated with silicone-containing material and dianion, and methods of making the same
AssigneePotlatch Corporation
InventorsDonald J. Hejna, Michael S. Urso
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Abstract
The present invention provides a product that includes (a) a wood-based product having a pair of outer surfaces; and (b) a silicone-containing material and a compound having a dianion each located on at least a portion of at least one outer surface, and the silicone-containing material at least partially penetrates at least a portion of at least one outer surface of the wood-based product. The invention also includes methods for manufacturing such product.
Claims31
A process for manufacturing an antifungal wood-based composite panel, the process comprising:
- (i) contacting, in any suitable order, flakes of wood with a first resin, an effective antifungal amount of a silicone containing material, and a compound having a dianion;
- (ii) orienting, in substantially alternate lengthwise and crosswise layers, the flakes of wood to provide a blanket of substantially oriented flakes;
- and
- (iii) curing the first resin by exposing the first resin to at least one of an elevated temperature, an elevated pressure, and radiant energy;
- for a sufficient period of time;
- to effectively cure the first resin.
3 more elements
Dependencies are inferred from the claim text.