Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature
Patent
1983-06-16
1985-01-08
Ives, Patricia C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Edge feature
428194, 428213, 428215, 428326, 428352, 428535, 428541, 428531, 156 622, B32B 2302
Patent
active
044927266
ABSTRACT:
A high wet strength waferboard panel is disclosed made from aspen species of wood flakes or equivalent with average specific gravity less than 0.6 and having wet strength equivalent to plywood. At least a portion of the wood wafers are oriented generally in a lengthwise direction such that the length to width strength ratio of the panel, measured as modulus of rupture, is in the range of about 1.3:1 to 2:1, the density of the waferboard panel being in the range of about 38 to 45 lb/ft.sup.3, the content of adhesive resin in the panel being in the range of about 4% to 10%, the content of wax in the panel being in the range of about 1% to 21/2% and the thickness of the panel being in the range of about 3/8 to 11/2 inches. The fully soaked panel having a moisture content of at least about 30% with an MOR lengthwise greater than about 2900 lb/in.sup.2 and an MOE lengthwise greater than about 0.9.times.10.sup.6 lb/in.sup.2.
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Ives Patricia C.
MacMillan Bloedel Limited
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