C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 97/02 (2006.01) B27N 3/06 (2006.01) B27N 7/00 (2006.01) B32B 9/02 (2006.01) B32B 21/02 (2006.01) B32B 21/08 (2006.01) B32B 37/22 (2006.01) C08L 1/08 (2006.01)
Patent
CA 2369783
22 A method for manufacturing a dimensionally stable composite cellulosic product having side and edge surfaces involves applying a sheet of thermoplastic material to at least one side surface of the composite product. Pressure and heat are applied for a pre-determined period via a heated press to melt the thermoplastic material to bond to and coat the at least one side surface of the product. The resulting product enjoys significantly improved dimensionally stability when exposed to water. Thickness swelling of the coated product is reduced by over 70% as compared to a conventional composite cellulosic product without the coating. In the case of oriented strand board (OSB) manufactured according to the method of the present invention, thickness swell of 2-5% after 24 hour water soaking is observed as compared to 10-15% swell with conventional OSB.
Dai Chunping
Ens Peter
Fetherstonhaugh & Co.
Forintek Canada Corp.
LandOfFree
Method of manufacturing dimensionally stable cellulosic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing dimensionally stable cellulosic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing dimensionally stable cellulosic... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1933889