<p>The invention relates to sulphonated polymer resins, particularly polymer resins with a sulphonated shell layer, and the preparation thereof. Resins according to the invention are prepared by sulphonating a polymer in a non-swollen state with substantially pure gaseous sulphur trioxide substantially in the shell layer of the polymer particles. The polymer to be sulphonated can be for example a styrene-DVB copolymer. The resins according to the invention can be used for example as chromatographic resins, ion-exchange resins and catalyst resins.</p>
申请公布号
WO0064951(A1)
申请公布日期
2000.11.02
申请号
WO2000FI00350
申请日期
2000.04.20
申请人
DANISCO FINLAND OY;KAERKI, ARI;PAATERO, ERKKI;HEIKKILAE, HEIKKI;MONONEN, HEIKKI;PAANANEN, HANNU;TIIHONEN, JARI
发明人
KAERKI, ARI;PAATERO, ERKKI;HEIKKILAE, HEIKKI;MONONEN, HEIKKI;PAANANEN, HANNU;TIIHONEN, JARI