Patent ID: 7846536
Filing Date: 2010-12-07
Classification: B28B,B32B,E04C,Y10T

Abstract:
1. A building composite panel including at least one longitudinal edge face, comprising: a core of hydraulic material having a top major face and a bottom major face, each major face adjoining the longitudinal edge face; a slurry-permeable reinforcing material attached to one or more of said major faces; and, a multi-ply edge facing material, that is different from said reinforcing material, covering and attached without adhesives to said at least one longitudinal edge face and attached to only a portion of each of said major faces, said edge facing material overlapping said reinforcing material and said top major face and said bottom major face, and comprising at least a slurry-permeable first ply embedded in said longitudinal edge face and a second, slurry-impermeable ply bonded to said first ply, wherein between about 10% and about 50% of the width of the edge facing overlaps with the first reinforcing material.