Product containing high density skins on a low density core

Details Product containing high density skins on a low density core Product containing high density skins on a low density core

B - Operations, Transporting

27

N

154/75, 18/952

B27N 7/00 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1106568

ABSTRACT OF THE DISCLOSURE A fiberboard is manufactured having relatively high density skins on a relatively low density core by including urea in at least the surface fibers of a consoli- dated mat, having a density of less than 35 pounds per cubic foot, and then hot-pressing the consolidated mat at a temperature of at least 525° F. to form a board having high density surface skins.

288069

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