	US 12,290,794 B2
	Layered sorbent structures
Alan Bootland, Billingham (GB); David Davis, Billingham (GB); Jonathan Edgar, Billingham (GB); and Jonathon Higgins, Billingham (GB)
Assigned to Johnson Matthey Public Limited Company, London (GB)
Appl. No. 17/594,241
Filed by JOHNSON MATTHEY PUBLIC LIMITED COMPANY, London (GB)
PCT Filed Jun. 5, 2020, PCT No. PCT/GB2020/051359 § 371(c)(1), (2) Date Oct. 7, 2021, PCT Pub. No. WO2020/260855, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 1909269 (GB), filed on Jun. 27, 2019.
Prior Publication US 2022/0176345 A1, Jun. 9, 2022
Int. Cl. B01J 20/26 (2006.01); B01J 20/08 (2006.01); B01J 20/10 (2006.01); B01J 20/18 (2006.01); B01J 20/30 (2006.01); B29C 64/124 (2017.01); B29C 64/286 (2017.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B29K 33/00 (2006.01); B29K 105/00 (2006.01); B29L 31/00 (2006.01); B33Y 10/00 (2015.01)

CPC B01J 20/261 (2013.01) [B01J 20/08 (2013.01); B01J 20/103 (2013.01); B01J 20/18 (2013.01); B01J 20/30 (2013.01); B29C 64/124 (2017.08); B29C 64/286 (2017.08); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B29K 2033/08 (2013.01); B29K 2105/0002 (2013.01); B29K 2105/0094 (2013.01); B29K 2995/0097 (2013.01); B29L 2031/737 (2013.01); B33Y 10/00 (2014.12)]

15 Claims

1. A shaped sorbent comprising a plurality of layers of photopolymerised resin containing particles of a sorbent material, wherein the sorbent material comprises alumina, silica, carbon or a molecular sieve and the shaped sorbent is formed by additive layer photopolymerisation comprising digital light processing or continuous liquid interface production of a mixture of the sorbent material and a photopolymerisable resin, wherein each layer has a thickness in a range of from 10 to 300 μm and wherein the maximum particle size (Dv100) of the sorbent material in the shaped sorbent is less than the layer thickness.