Patent ID: 11866541
Assignee: KRATON CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  Y | IPC C

Claim 11:
12. The method of claim 1, wherein the polymer containing at least an impurity to be removed, is a styrenic block copolymer, and
wherein the styrenic block copolymer is selected from a styrene-butadiene-styrene (SBS), a styrene-isoprene (SI), a styrene-isoprene-styrene (SIS), a styrene-ethylene/butylene-styrene (SEBS), a styrene-ethylene/propylene-styrene (SEPS), a styrene-isoprene/butadiene-styrene (SIBS) or hydrogenated versions thereof, and a sulfonated block copolymer having a sulfonate group in acid or salt form.