Oriented strand boards

Details Oriented strand boards Oriented strand boards

2004-06-28

2008-09-09

Edwards, N (Department: 1794)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

C428S297100, C156S296000, C264S113000

Reexamination Certificate

active

07422787

ABSTRACT:
Oriented strand board (OSB), comprising a core layer and two face layers, whereby the face layers comprise an adhesive composition, wherein the adhesive composition in at least one of the face layers comprises a resin composition comprising melamine, formaldehyde, optionally urea and aromatic hydroxyl compounds, wherein the molar ratio of melamine to formaldehyde is 1:0.8-4.0, the molar ratio of melamine to urea is 1:0-2.0 and the molar ratio of melamine to aromatic hydroxyl compounds is 1:0-2.0. In a preferred embodiment, both the face layers and the core layer comprise the said adhesive composition. The OSB's according to the invention can meet the OSB/3 and even the OSB/4 requirements in the EN 300 standards.

REFERENCES:
patent: 5047275 (1991-09-01), Chiu
patent: 6379814 (2002-04-01), Dupre et al.
patent: 6399719 (2002-06-01), Dopico et al.
patent: 7345136 (2008-03-01), Wescott et al.
patent: 2002/0054994 (2002-05-01), Dupre et al.
patent: 2006/0157183 (2006-07-01), Evers et al.
patent: 200 14 859 (2001-01-01), None

Affiliated with

Also associated with

Rating

Oriented strand boards does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oriented strand boards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oriented strand boards will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3989653