US 12,172,153 B2
Flocculant functionalized separation media
Andrew Tomlinson, Wells, ME (US); Matthew Buchanan, Atkinson, NH (US); Kelly Flook, Bedford, MA (US); and Kevin Galipeau, Westford, MA (US)
Assigned to LIFE TECHNOLOGIES CORPORATION, Carlsbad, CA (US)
Appl. No. 16/970,444
Filed by LIFE TECHNOLOGIES CORPORATION, Carlsbad, CA (US)
PCT Filed Feb. 27, 2019, PCT No. PCT/US2019/019902
§ 371(c)(1), (2) Date Aug. 17, 2020,
PCT Pub. No. WO2019/169040, PCT Pub. Date Sep. 6, 2019.
Claims priority of provisional application 62/756,479, filed on Nov. 6, 2018.
Claims priority of provisional application 62/635,947, filed on Feb. 27, 2018.
Prior Publication US 2021/0170389 A1, Jun. 10, 2021
Int. Cl. B01J 39/05 (2017.01); B01D 15/36 (2006.01); B01J 39/20 (2006.01); B01J 47/014 (2017.01); B01J 47/02 (2017.01); C07K 1/18 (2006.01)
CPC B01J 39/05 (2017.01) [B01D 15/362 (2013.01); B01J 39/20 (2013.01); B01J 47/014 (2017.01); B01J 47/02 (2013.01); C07K 1/18 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An anion exchange separation medium comprising:
a. a base surface; and
b. at least one cationic flocculant ligand covalently attached to the base surface, wherein the cationic flocculant ligand is an aliphatic, heterocyclic, or arylalkyl compound comprising at least one substituent group selected from hydrazide, an imidazole, an oxime, a hydrazine, hydrazone, N-vinylpyrrolidone, and piperidinium.