Main > POLYMERS > Poly(EtherSulfone) > Co.: DE. By (Patent) > Patent > Claims Etc. > Claim 1 PolyEther Block CoPolySulfo > nes Mfg. Process Reacting by > TransEtherification A) > Aromatic Sulfone Polymer, with > B) Aliphatic PolyEther having > 1 > Terminal OH Function. Claim 2 > > 2 Terminal OH Functions. Claim 3 > Basic Catalyst. Claim 4 > DiPolar Aprotic Solvent. Claim 14 > Catalyst Lithium Carbonate Etc. > Claim 15 Solvent Selected from > DiMethyl SulfOxide Etc. Assignee
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DE. B