Patent ID: 11859026
Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 13:
14. The method of claim 1 wherein said monomer composition comprises one or more monomers selected form the group consisting of 8-(methallyloxy)-1,3,6-pyrene trisulfonic acid, methallyl-8-(hydroxy)-1,3,6-pyrene trisulfonic acid, 8-(allyloxy)-1,3,6-pyrene trisulfonic acid, vinyl benzyl-8-(hydroxy)-1,3,6-pyrene trisulfonic acid, allyl-8-(hydroxy)-1,3,6-pyrene trisulfonic acid, 2-(methallyl)-1,3,6-pyrene trisulfonic acid, 4-(methallyl)-1,3,6-pyrene trisulfonic acid, 5-(methallyl)-1,3,6-pyrene trisulfonic acid, 7-(methallyl)-1,3,6-pyrene trisulfonic acid; 9-(methallyl)-1,3,6-pyrene trisulfonic acid; 10-(methallyl)-1,3,6-pyrene trisulfonic acid; 2-(allyl)-1,3,6-pyrene trisulfonic acid, 4-(allyl)-1,3,6-pyrene trisulfonic acid, 5-(allyl)-1,3,6-pyrene trisulfonic acid, 7-(allyl)-1,3,6-pyrene trisulfonic acid; 9-(allyl)-1,3,6-pyrene trisulfonic acid; 10-(allyl)-1,3,6-pyrene trisulfonic acid, 2-vinyl benzyl-1,3,6-pyrene trisulfonic acid, 4-vinyl benzyl-1,3,6-pyrene trisulfonic acid, 5-vinyl benzyl-1,3,6-pyrene trisulfonic acid, 7-vinyl benzyl-1,3,6-pyrene trisulfonic acid, 9-vinyl benzyl-1,3,6-pyrene trisulfonic acid, 10 benzyl-1,3,6-pyrene trisulfonic acid; 8-(3-vinyl benzyloxy)-1,3,6-pyrene trisulfonic acid; 8-(4-vinyl benzyloxy)-1,3,6-pyrene trisulfonic acid; and the sodium, potassium, cesium, rubidium, lithium, ammonium, and tetralkylammonium salts thereof of any of the foregoing.