US 11,692,071 B2
Agglomerating nanoparticles
Ian Carrick, Darlington (GB); and Paul Jonathan Laughlin, Houghton-le-Spring (GB)
Assigned to Peratech Holdco Limited, Richmond (GB)
Appl. No. 16/644,298
Filed by Peratech Holdco Limited, Richmond (GB)
PCT Filed Sep. 6, 2018, PCT No. PCT/GB2018/000119
§ 371(c)(1), (2) Date Mar. 4, 2020,
PCT Pub. No. WO2019/048809, PCT Pub. Date Mar. 14, 2019.
Claims priority of application No. 1714279 (GB), filed on Sep. 6, 2017.
Prior Publication US 2021/0061671 A1, Mar. 4, 2021
Int. Cl. B01J 8/00 (2006.01); C08J 3/12 (2006.01); C01G 30/00 (2006.01); B82B 3/00 (2006.01); B82Y 30/00 (2011.01)
CPC C08J 3/12 (2013.01) [B82B 3/008 (2013.01); C01G 30/00 (2013.01); B82Y 30/00 (2013.01); C01P 2002/52 (2013.01); C01P 2004/30 (2013.01); C01P 2004/64 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of agglomerating nanoparticles to form larger agglomerates, comprising the steps of:
mixing said nanoparticles with a resin to form a first mixture of agglomerates suspended in said resin, said first mixture comprising agglomerates having a largest dimension which is greater than a predetermined specified dimension;
bead milling said first mixture to produce a second mixture with a reduced number of agglomerates having said largest dimension greater than said predetermined specified dimension; and
filtering said second mixture to produce a third mixture of agglomerates suspended in said resin, wherein substantially none of said agglomerates have a largest dimension greater than said predetermined specified dimension; wherein said first mixture comprises a percentage by weight of nanoparticles to resin of substantially three percent.