专利名称：PROCESS FOR THE PREPARATION OF AN
AQUEOUS EMULSION OF A MIDBLOCKSULFONATED BLOCK COPOLYMER
发明人：Bert KRUTZER,Coen DE OUDE申请号：US15300860申请日：20150401
公开号：US20170022328A1公开日：20170126
摘要：The present invention provides an aqueous emulsion and a process forpreparing an aqueous emulsion of a midblock sulfonated styrenic block copolymercomprising at least two non-sulfonated polymer end-blocks A and at least one 5sulfonated block B comprising the steps of providing a cement of a midblock sulfonatedstyrenic block copolymer in a non-polar solvent wherein the non-polar solvent is ahydrocarbon compound comprising from 5 to 12 carbon atoms with a boiling point ofless than 100 degree Celsius or mixture of such compounds, mixing the cement with a co-solvent to form a mixture, emulsifying the mixture optionally in the 10 presence of anemulsifier with water to produce an emulsion, and removing the hydrocarbon solvent andoptionally the co-solvent from the emulsion to produce the aqueous emulsion. Theresulting emulsion of the midblock sulfonated styrenic block copolymer has relativelysmall particle diameters.
申请人：KRATON POLYMERS U.S. LLC
地址：Houston TX US
国籍：US
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