<p>A method of preparing an aqueous dispersion comprising silver particles of mean diameter from 0.5 -25 nm by weight and an aqueous carrier liquid, including the steps of i) providing a mixture comprising at least one silver salt, aqueous carrier liquid and a stabilizer for the particles ii) contacting the mixture with a reducing agent to form a reaction mixture iii) causing the at least one silver salt to react with the reducing agent to form a dispersion comprising silver particles and acid wherein step iii) is partly or completely performed in the presence of anion exchange resin whereby the acid is exchanged for a hydroxide ion from the resin and/or is sorbed by the resin.</p>
申请公布号
EP2373449(B1)
申请公布日期
2013.05.01
申请号
EP20090795389
申请日期
2009.12.14
申请人
AKZO NOBEL COATINGS INTERNATIONAL B.V.
发明人
BUSCALL, RICHARD;GRAHAM, DEREK;ANDERSON, RORY;SCALES, PETER JOSEPH;MULVANEY, PAUL;ELDRIDGE, ROBERT JAMES