B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/78, 20/38.1
B32B 3/28 (2006.01) B27N 3/20 (2006.01) B32B 21/00 (2006.01) E04B 7/20 (2006.01) E04C 2/16 (2006.01)
Patent
CA 1178521
ABSTRACT OF THE DISCLOSURE . A waferboard panel is disclosed and a method of making the panel having a friction surface on at least one side. The friction surface retains the water resistant properties of the panel surface and allows a firm footing when the panel is used in sloped roofs. The waferboard panel has at least: one surface being a friction surface comprising a plurality of raised protrusions spaced apart in a predetermined pattern. The process of making the panel comprises the steps of assembling wood wafers coated with an adhesive binder into a mat with a plate, the plate having a surface adjacent the mat with a plurality of indentations or holes therein in a predetermined pattern, and pressing the mat in a press at a high temperature with the plate adjacent the mat to form the wafers into a waferboard panel such that the friction surface of the waferboard panel has a plurality of raised protrusions spaced apart in a predetermined pattern.
404659
Fetherstonhaugh & Co.
Macmillan Bloedel Limited
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