Invention Grant
US09072983B2 Vinyl sulfonic acid, polymer thereof, and production method thereof
有权
乙烯基磺酸，其聚合物及其制备方法
- Patent Title: Vinyl sulfonic acid, polymer thereof, and production method thereof
- Patent Title (中): 乙烯基磺酸，其聚合物及其制备方法
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Application No.: US12933964Application Date: 2009-03-27
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Publication No.: US09072983B2Publication Date: 2015-07-07
- Inventor: Hiroshi Akikaze , Takehiko Miyai , Kazuhiko Isshiki
- Applicant: Hiroshi Akikaze , Takehiko Miyai , Kazuhiko Isshiki
- Applicant Address: JP Osaka
- Assignee: Asahi Kasei Finechem Co., Ltd.
- Current Assignee: Asahi Kasei Finechem Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2008-085670 20080328; JP2008-085693 20080328; JP2008-143072 20080530; JP2008-143400 20080530; JP2008-167810 20080626
- International Application: PCT/JP2009/056286 WO 20090327
- International Announcement: WO2009/119806 WO 20091001
- Main IPC: H01B1/12
- IPC: H01B1/12 ; B01D1/06 ; B01D3/02 ; C07C309/20 ; C08F220/44 ; C08F228/02 ; H01M8/10
Abstract:
(1) A vinyl sulfonic acid, having a double bond content of 95 wt. % or more, and (i) a sodium (Na) content of 1 ppm or less, and (ii) a content of at least one metal selected from the group consisting of alkali earth metal and first row transition metal of 1 ppm or less. Alternatively, (2) a vinyl sulfonic acid, having a double bond content of 95 wt. % or more, and (i) a sodium (Na) content of 100 ppb or less, and (ii) a content of at least one metal selected from the group consisting of alkali earth metal and first row transition metal of 100 ppb or less. Further, a homopolymer or copolymer thereof, a production method thereof, or a thin-film distillation apparatus suited for the production thereof.
Public/Granted literature
- US20110017954A1 VINYL SULFONIC ACID, POLYMER THEREOF, AND PRODUCTION METHOD THEREOF Public/Granted day:2011-01-27
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