US 12,447,646 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 Dec. 14, 2023, as Appl. No. 18/539,775.
Application 18/539,775 is a continuation of application No. 17/983,118, filed on Nov. 8, 2022, granted, now 11,872,720.
Claims priority of provisional application 63/276,913, filed on Nov. 8, 2021.
Prior Publication US 2024/0116212 A1, Apr. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B27N 3/14 (2006.01); B27N 3/24 (2006.01); B32B 21/02 (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 method of producing an engineered wood product, comprising the steps of:
forming a 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 an average second length and an average second width, wherein the average second length is less than the average first length, said microstrand interface layer further comprising an upper surface opposite the strand matrix;
applying a fines layer on the upper surface of the microstrand interface layer; and
consolidating and bonding the strand matrix, the microstrand interface layer, and the fines layer together.