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

Claim 14:
15. A polymer composition comprising a water soluble polymer polymerized from a mixture of monomers comprising a monomer of formula (IIa):, wherein M is selected from the group consisting of hydrogen, sodium, potassium, cesium, rubidium, lithium, ammonium, and tetralkylammonium, and
R1 is selected from optionally substituted —C1-C10alkyl-, -aryl-C2-C10alkyl-, —C(O)—, —CH2NH—C(O)—, and —C(CH3)2—NH—C(O)—, and
R is H or optionally substituted C1-C10alkyl-;
wherein the sum of the mole percent of unfunctionalized pyranine compound and the mole percent of unpolymerized pyranine monomer is less than 5 mole percent of the total pyranine in the polymer composition.