ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,953, issued on Feb. 17, was assigned to Agfa NV (Mortsel, Belgium).
"Cationic polymer nanoparticles" was invented by Johan Loccufier (Mortsel, Belgium) and Luc Decoster (Mortsel, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cationic polymer nanoparticle, functionalized with primary amines, characterized in that said nanoparticle comprises a resin having at least a) a repeating unit selected from the group consisting of an allyl amine and a vinyl amine, b) an oxalyl amide crosslinking unit and c) a repeating unit according to general formula (I) and/or general formula (II); the particle can be dispersed in an aqueous vehicle to be used in...