发明人罗永刚,郑宇鹏,周伟. "Method for the Synthesis of 4,4-((Sulfonylbis(4,1-phenylene))-bis(oxy))dianiline" [P]. 中国发明专利, 专利号 CN 113417481 B, 授权公告日 2015-08-04.
发明人胡光,林芳,唐晓军. "A Process for Preparing High-Purity 4,4-((Sulfonylbis(4,1-phenylene))-bis(oxy))dianiline" [P]. 中国发明专利, 专利号 CN 116016928 A, 授权公告日 2019-12-28.
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