Patent ID: 7288599

Claim:
Modified polymers or polymer blends or polymer (blend) membranes or polymer moulded bodies, comprising a polymer containing at least sulfinate groups SO 2 M, a polymerblend containing at least sulfinate groups SO 2 M, a polymer(blend)membrane containing at least sulfinate groups SO 2 M or other moulded bodies containing at least sulfinate groups SO 2 M, wherein M represents 1-, 2- or 3-valent metal cation or ammonium ion NR 4 + , wherein R represents H and/or alkyl and/or Aryl or imidazolium ion or pyrazolium ion or pyridinium ion, wherein sulfinate groups are subjected to S-alkylation reactions of the sulfinate group, wherein ALK represents any alkylation agent or mixture of different alkylation agents, that react by S-Alkylation either by substitution or by addition (with olefins with electron-attracting groups) with the sulfinate group: thereby the alkylation agent shows 1 or 2 or >2 alkylation groups.