US 12,285,882 B2
Strong and tough structural wood materials, and methods for fabricating and use thereof
Liangbing Hu, Potomac, MD (US); Mingwei Zhu, Nanjing (CN); and Jianwei Song, College Park, MD (US)
Assigned to UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US)
Filed by UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US)
Filed on Nov. 4, 2022, as Appl. No. 17/980,702.
Application 17/980,702 is a continuation of application No. 17/408,695, filed on Aug. 23, 2021, granted, now 11,554,514.
Application 17/408,695 is a continuation of application No. 16/604,005, granted, now 11,130,256, issued on Sep. 28, 2021, previously published as PCT/US2018/026742, filed on Apr. 9, 2018.
Claims priority of provisional application 62/627,600, filed on Feb. 7, 2018.
Claims priority of provisional application 62/483,828, filed on Apr. 10, 2017.
Prior Publication US 2023/0166427 A1, Jun. 1, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 21/13 (2006.01); B01D 11/02 (2006.01); B27K 3/02 (2006.01); B27K 3/16 (2006.01); B27K 3/20 (2006.01); B27K 3/36 (2006.01); B27K 3/38 (2006.01); B27K 3/48 (2006.01); B27K 5/06 (2006.01); B32B 7/12 (2006.01); D21C 3/02 (2006.01); D21C 3/12 (2006.01); D21C 9/00 (2006.01)
CPC B27K 5/065 (2013.01) [B01D 11/0288 (2013.01); B27K 3/0278 (2013.01); B27K 3/16 (2013.01); B27K 3/20 (2013.01); B27K 3/36 (2013.01); B27K 3/38 (2013.01); B27K 3/48 (2013.01); B32B 7/12 (2013.01); B32B 21/13 (2013.01); D21C 3/022 (2013.01); D21C 3/12 (2013.01); D21C 9/005 (2013.01); D21C 9/007 (2013.01); B27K 2240/10 (2013.01); B27K 2240/30 (2013.01); B27K 2240/70 (2013.01); B32B 2419/00 (2013.01); B32B 2479/00 (2013.01); B32B 2571/00 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A structure comprising:
a first piece of natural fibrous plant that has been chemically treated to remove between 5% and 95% of lignin therein while substantially preserving a structure of cellulose-based lumina and further subjected to pressing in a first direction crossing a direction of extension of the lumina such that the lumina collapse,
wherein facing portions of the collapsed lumina in the first piece are in contact with each other.