Patent ID: 6565959
Filing Date: 2003-05-20
Classification: B32B,C09J,E04C,Y10S,Y10T

Abstract:
A reconstituted wood member for bearing sag-inducing large applied loads over a span by controlling dimensional change, the reconstituted wood member comprising:a beam comprising opposed flange members connected by a web member, wherein at least one of the opposed flanges and web member is a wood member comprising reconstituted wood particles in the form of an integral structure held together by a resin binder throughout which multiple high strength discontinuous fibers of a poly(paraphenylene terephthalamide) (PPTA) polymer type are mixed, the high strength fibers being of between about 50 microns and 600 microns in microfibril length and populating the resin binder in amounts that are effective to control dimensional change in the beam.