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US 6,797,782 B2Granted
Process for producing particles for diagnostic reagent
AssigneeJsr Corporation
InventorsIchiro Ozaki, Satoshi Katayose, Mikio Hikata, Kejun Fan, Mitsuhiro Murata
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Abstract
A process of producing particles for diagnostic reagent, including a step of polymerizing a polymerizable monomer in the presence of a matrix particle having a magnetic substance layer containing at least one of Fe2O3 and Fe3O4 on the surface thereof and having a mean particle size of 0.4-200 μm to form a polymer layer on the magnetic substance layer.
Claims12
A process for producing particles for diagnostic reagent, which comprises:
- forming a matrix particle by mixing a nuclear particle having a CV value of 20% or less and a magnetic substance containing at least one of Fe2O3 and Fe3O4 and giving a shear force to the mixture to adsorb the magnetic substance on the surface of the nuclear particle;
- and
- polymerizing a polymerizable monomer in the presence of said matrix particle having a mean particle size of 0.4-200 μm to form a polymer layer on the magnetic substance layer.
Dependencies are inferred from the claim text.