US 12,325,841 B2
Articles of manufacture comprising nanocellulose elements
David S. Soane, Coral Gables, FL (US); Allison Hope Greene, Reno, NV (US); and Juan Sebastian Colmenares, Reno, NV (US)
Assigned to Soane Materials LLC, Miami, FL (US)
Filed by Soane Materials LLC, Miami, FL (US)
Filed on Sep. 5, 2024, as Appl. No. 18/825,369.
Application 18/825,369 is a continuation of application No. 18/588,964, filed on Feb. 27, 2024.
Application 18/588,964 is a continuation of application No. 18/123,476, filed on Mar. 20, 2023, granted, now 11,932,829, issued on Mar. 19, 2024.
Application 18/123,476 is a continuation of application No. 17/834,521, filed on Jun. 7, 2022, granted, now 12,122,980.
Claims priority of provisional application 63/309,730, filed on Feb. 14, 2022.
Claims priority of provisional application 63/219,686, filed on Jul. 8, 2021.
Claims priority of provisional application 63/208,577, filed on Jun. 9, 2021.
Prior Publication US 2025/0066699 A1, Feb. 27, 2025
Int. Cl. C11D 17/04 (2006.01); C11D 11/00 (2006.01); D21H 11/12 (2006.01); D21H 11/14 (2006.01); D21H 11/18 (2006.01); D21H 17/06 (2006.01); D21H 17/07 (2006.01); D21H 17/09 (2006.01); D21H 17/14 (2006.01); D21H 17/20 (2006.01); D21H 17/26 (2006.01); D21H 17/34 (2006.01); D21H 17/36 (2006.01); D21H 21/08 (2006.01); D21H 21/10 (2006.01)
CPC C11D 17/042 (2013.01) [C11D 17/045 (2013.01); D21H 11/12 (2013.01); D21H 11/14 (2013.01); D21H 11/18 (2013.01); D21H 17/06 (2013.01); D21H 17/07 (2013.01); D21H 17/14 (2013.01); D21H 17/20 (2013.01); D21H 17/26 (2013.01); D21H 17/34 (2013.01); D21H 17/36 (2013.01); D21H 21/08 (2013.01); D21H 21/10 (2013.01); C11D 2111/12 (2024.01); C11D 2111/14 (2024.01)] 27 Claims
 
1. A method of producing an article of manufacture comprising a redispersible, dried nanocellulose (NC)-containing matrix with nanocellulose elements (NCEs) embedded therein and an active agent, wherein the active agent is a household product or a laundry product, the method comprising:
drying a liquid formulation to form the redispersible, dried NC-containing matrix, wherein the liquid formulation comprises a suspension of the nanocellulose elements (NCEs) in a liquid medium and a drying/dispersal additive, wherein the drying/dispersal additive is a volatile small molecule additive or a blocking agent and wherein the drying/dispersal additive disrupts hydrogen bonding between the nanocellulose elements during the drying;
wherein the redispersibility of the dried NC-containing matrix is greater than that of a dried control matrix prepared by drying a control suspension of the nanocellulose elements in the liquid medium, wherein the control suspension lacks the drying/dispersal additive, and
wherein the redispersible, dried NC-containing matrix comprises interstices and wherein the active agent is disposed within the interstices of the matrix, wherein the active agent is dispersed on the surface of the matrix, or
wherein the active agent is enclosed by the matrix;
wherein the volatile small molecule additive is selected from the group consisting of tri(propylene glycol) butyl ether, di(propylene glycol) propyl ether, propylene glycol butyl ether, propylene glycol propyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether acetate, propylene glycol diacetate, ethylene glycol diacetate, benzyl alcohol, 1-heptanol, 1-hexanol, ethylene diamine, diethylene triamine, tetraethylene pentaamine, 1,3-pentane diamine, piperazine, 1,2-cyclohexane diamine, aniline, pyridine, and piperazine; and
the blocking agent is selected from the group consisting of a purine, a pyrimidine, a humectant, and a fatty acid.