US 11,872,720 B2
Microstrand interface layer for improved engineered wood products
Gareth Paul Merrick, Gig Harbor, WA (US); and Brian St. Germain, Mt. Juliet, TN (US)
Assigned to LOUISIANA-PACIFIC CORP., Nashville, TN (US)
Filed by LOUISIANA-PACIFIC CORPORATION, Nashville, TN (US)
Filed on Nov. 8, 2022, as Appl. No. 17/983,118.
Claims priority of provisional application 63/276,913, filed on Nov. 8, 2021.
Prior Publication US 2023/0143301 A1, May 11, 2023
Int. Cl. B32B 21/02 (2006.01); B27N 3/14 (2006.01); B27N 3/24 (2006.01)
CPC B27N 3/143 (2013.01) [B27N 3/24 (2013.01); B32B 21/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A improved method of producing an engineered wood product, comprising the steps of:
forming a multi-layer strand matrix on a production line, said strand matrix comprising a top surface with strands of an average first length and an average first width;
applying a microstrand interface layer on the top surface of the strand matrix, said microstrand interface layer comprising microstrands with a second length and second width, wherein the second length is less than or equal to one-half of the average first length, said microstrand interface layer further comprise an upper surface opposite the strand matrix;
applying a fines layer on the upper surface of the microstrand interface layer;
consolidating and bonding the strand matrix, the microstrand interface layer, and the fines layer together using heat and/or pressure.