Invention Application
- Patent Title: Method of making sulfonic group-containing aromatic compound
- Patent Title (中): 制备含磺基芳族化合物的方法
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Application No.: PCT/CN2011/079958Application Date: 2011-09-21
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Publication No.: WO2013040768A1Publication Date: 2013-03-28
- Inventor: CHEN, Qiao , SHAO, Fangke , IZUHARA, Daisuke , WU, Gang
- Applicant: TORAY FIBERS & TEXTILES RESEARCH LABORATORIES (CHINA) CO., LTD. , CHEN, Qiao , SHAO, Fangke , IZUHARA, Daisuke , WU, Gang
- Applicant Address: 58 Xin Kai Road (South) Nantong Economic & Technological Development Zone Nantong, Jiangsu 226009 CN
- Assignee: TORAY FIBERS & TEXTILES RESEARCH LABORATORIES (CHINA) CO., LTD.,CHEN, Qiao,SHAO, Fangke,IZUHARA, Daisuke,WU, Gang
- Current Assignee: TORAY FIBERS & TEXTILES RESEARCH LABORATORIES (CHINA) CO., LTD.,CHEN, Qiao,SHAO, Fangke,IZUHARA, Daisuke,WU, Gang
- Current Assignee Address: 58 Xin Kai Road (South) Nantong Economic & Technological Development Zone Nantong, Jiangsu 226009 CN
- Agency: UNITALEN ATTORNEYS AT LAW
- Main IPC: C07C303/06
- IPC: C07C303/06
Abstract:
The invention provides a method of making a sulfonic group-containing aromatic compound. The multi-substituted sulfonated aromatic compounds can be obtained by reacting an aromatic compound with fuming sulfuric acid having a sulfur trioxide concentration of 20% to 65% by weight) at 120℃ to 250℃ in a closed system with pressure. The multi-substituted sulfonated aromatic compounds are the important monomers necessary for preparing sulfonated poly(ether ether ketone)s (SPEEKs) with higher sulfonation degree, which can be widely used in the field of fuel cell or water treatment.
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