专利名称：Process for the preparation of an aqueous
emulsion of a midblock sulfonated blockcopolymer
发明人：Bert Krutzer,Coen De Oude申请号：US15300863申请日：20150401公开号：US09988500B2公开日：20180605
摘要：The present invention concerns aqueous emulsions and a process for preparingaqueous emulsions of a midblock sulfonated styrenic block copolymer comprising atleast two non-sulfonated polymer end-blocks A and at least one sulfonated block B,comprising the steps of providing a cement of a midblock sulfonated styrenic blockcopolymer in the apolar solvent, mixing the cement with a co-solvent to form a mixture,emulsifying the mixture in the absence of a surfactant with water to produce an emulsion,and removing the hydrocarbon solvent and any optional co-solvent from the emulsion toproduce the aqueous emulsion. The resulting emulsion of the midblock sulfonatedstyrenic block copolymer has relatively small particle diameters.
申请人：KRATON POLYMERS U.S. LLC
地址：Houston TX US
国籍：US
代理机构：Cantor Colburn LLP
代理人：Jessica Zimberlin Eastman
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