US 11,972,886 B2
Magnetic nanoparticles embedded in polymer microparticles
Devendra Bajaj, Mt. Vernon, IN (US); and Viswanathan Kalyanaraman, Mt. Vernon, IN (US)
Assigned to SHPP Global Technologies B.V., Bergen op Zoom (NL)
Appl. No. 17/048,195
Filed by SHPP Global Technologies B.V., Bergen op Zoom (NL)
PCT Filed Apr. 17, 2019, PCT No. PCT/US2019/027904
§ 371(c)(1), (2) Date Oct. 16, 2020,
PCT Pub. No. WO2019/204468, PCT Pub. Date Oct. 24, 2019.
Claims priority of provisional application 62/659,441, filed on Apr. 18, 2018.
Prior Publication US 2021/0104343 A1, Apr. 8, 2021
Int. Cl. H01F 1/34 (2006.01); C08J 3/21 (2006.01); C08K 3/22 (2006.01)
CPC H01F 1/344 (2013.01) [C08J 3/212 (2013.01); C08K 3/22 (2013.01); C08K 2003/2272 (2013.01); C08K 2201/005 (2013.01); C08K 2201/01 (2013.01); C08K 2201/011 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A particle (P) comprising:
a plurality of magnetic inorganic or organic particles (P1) embedded in at least one microparticle (P2), the microparticle (P2) comprising at least one polymeric material, wherein
the magnetic inorganic or organic particles (P1) have an average size of from about 10 nm to about 5000 nm,
the polymeric material comprises a thermoplastic resin comprising a polyetherimide, polycarbonate, polyether ether ketone, polyethersulfone, or combinations thereof, and
the average size of the particle (P) is from about 0.25 μm to about 75 μm.