Flat oriented strand board-fiberboard composite structure and me

Details Flat oriented strand board-fiberboard composite structure and me Flat oriented strand board-fiberboard composite structure and me

1993-04-23

1995-11-28

Ahmad, Nasser

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

162131, 162132, 162133, 162225, 428106, 428109, 428165, 428170, 428171, 428218, 428219, 428220, 428337, 4285371, B32B 512

Patent

active

054706319

ABSTRACT:
An oriented strand board (OSB)-fiberboard composite structure is comprised of a baseboard having three wood strand layers, the wood strands being oriented in space with respect to a board forming machine such that a core layer is comprised of wood strands oriented generally in a random or cross-machine direction and each adjacent layer is comprised of coarse and fine wood strands oriented generally in the machine direction. In a preferred embodiment, the wood strands comprising each adjacent OSB layer are formed with the coarsest strands located nearest the core layer and the finest strands are located nearest the outer surfaces of each outer board layer. The OSB-fiberboard composite product is clad with a wood fiber overlay on one major surface of the baseboard. The composite board is manufactured without warping, by providing particular OSB layer thicknesses, such that the lower OSB layer is about 25% to about 35% thicker than the OSB layer bonded to the fiberboard.

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