US 11,932,706 B2
Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom
Kimberly Nelson, Atlanta, GA (US); Theodora Retsina, Atlanta, GA (US); Vesa Pylkkanen, Atlanta, GA (US); and Ryan O'Connor, Minnetrista, MN (US)
Assigned to GranBio Intellectual Property Holdings, LLC, Thomaston, GA (US)
Filed by GranBio Intellectual Property Holdings, LLC, Minnetrista, MN (US)
Filed on Feb. 1, 2021, as Appl. No. 17/163,738.
Application 17/163,738 is a continuation of application No. 16/152,133, filed on Oct. 4, 2018, granted, now 10,906,994, issued on Feb. 2, 2021.
Application 16/152,133 is a continuation of application No. 15/281,277, filed on Sep. 30, 2016, granted, now 10,093,748, issued on Oct. 9, 2018.
Application 15/281,277 is a continuation of application No. 14/092,908, filed on Nov. 27, 2013, abandoned.
Claims priority of provisional application 61/897,156, filed on Oct. 29, 2013.
Claims priority of provisional application 61/838,985, filed on Jun. 25, 2013.
Claims priority of provisional application 61/732,047, filed on Nov. 30, 2012.
Prior Publication US 2021/0284757 A1, Sep. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C08B 15/08 (2006.01); C07G 1/00 (2011.01); C08B 15/00 (2006.01); C08B 15/02 (2006.01); C08B 37/00 (2006.01); C08H 8/00 (2010.01); C08L 1/02 (2006.01); C12P 7/04 (2006.01); C12P 7/10 (2006.01); C12P 7/14 (2006.01); C12P 7/16 (2006.01); C12P 7/28 (2006.01); C12P 7/46 (2006.01); C12P 7/56 (2006.01); C12P 19/02 (2006.01); C12P 19/14 (2006.01); C13K 1/02 (2006.01); D21C 3/04 (2006.01); D21C 3/06 (2006.01); D21C 3/20 (2006.01); D21C 5/00 (2006.01); D21C 9/00 (2006.01); D21C 9/10 (2006.01); D21C 11/00 (2006.01); D21H 11/18 (2006.01)
CPC C08B 15/08 (2013.01) [C07G 1/00 (2013.01); C08B 15/00 (2013.01); C08B 15/02 (2013.01); C08B 37/0057 (2013.01); C08H 8/00 (2013.01); C08L 1/02 (2013.01); C12P 7/04 (2013.01); C12P 7/10 (2013.01); C12P 7/14 (2013.01); C12P 7/16 (2013.01); C12P 7/28 (2013.01); C12P 7/46 (2013.01); C12P 7/56 (2013.01); C12P 19/02 (2013.01); C12P 19/14 (2013.01); C13K 1/02 (2013.01); D21C 3/04 (2013.01); D21C 3/06 (2013.01); D21C 3/20 (2013.01); D21C 5/00 (2013.01); D21C 5/005 (2013.01); D21C 9/002 (2013.01); D21C 9/007 (2013.01); D21C 9/10 (2013.01); D21C 11/0007 (2013.01); D21H 11/18 (2013.01); C12P 2201/00 (2013.01); C12P 2203/00 (2013.01); Y02E 50/10 (2013.01); Y02P 40/40 (2015.11)] 10 Claims
 
1. A nanocellulose composition comprising nanocrystalline cellulose with a cellulose crystallinity of about 80% or greater, wherein said nanocellulose composition contains nanocellulose particles having a surface concentration of lignin that is greater than a bulk concentration of lignin, and wherein said nanocrystalline cellulose is characterized by a nanometer-sized average nanocrystal particle width.