Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 9, 2007
Patent Application Number
11071720
Date Filed
March 3, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A process for the preparation of coated polymer particles containing superparamagnetic crystals, said process comprising reacting porous, surface-functionalized, superparamagnetic crystal-containing polymer particles of diameter 0.5 to 1.8 μm with at least one polyisocyanate and at least one diol or at least one epoxide.
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