Invention Grant
- Patent Title: Polyvinyl sulfonic acid, production method thereof, and use thereof
- Patent Title (中): 聚乙烯磺酸,其制备方法及其用途
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Application No.: US14113604Application Date: 2012-04-26
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Publication No.: US09321863B2Publication Date: 2016-04-26
- Inventor: Hiroshi Akikaze , Hidenobu Higashi , Hidenori Okuzaki
- Applicant: Hiroshi Akikaze , Hidenobu Higashi , Hidenori Okuzaki
- Applicant Address: JP Osaka JP Yamanashi
- Assignee: Asahi Kasei Finechem Co., Ltd.,University of Yamanashi
- Current Assignee: Asahi Kasei Finechem Co., Ltd.,University of Yamanashi
- Current Assignee Address: JP Osaka JP Yamanashi
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2011-101850 20110428
- International Application: PCT/JP2012/061264 WO 20120426
- International Announcement: WO2012/147872 WO 20121101
- Main IPC: C08F28/02
- IPC: C08F28/02 ; H01B1/12 ; C08L41/00 ; C08L65/00 ; H01G9/042 ; C09D141/00 ; H01G9/00 ; H01G9/028

Abstract:
The present invention relates to polyvinyl sulfonic acid comprising a vinyl sulfonic acid unit represented by a specific general formula (1), wherein the molar amount of sulfonic acid groups derived from vinyl sulfonic acid monomers with respect to the molar amount of total monomer units is 50.0 to 98.0 mol %, and the polyvinyl sulfonic acid has an absorbance of 0.1 or greater (aqueous solution: 0.2 mass %, cell length: 10 mm) in a wavelength range of 255 to 800 nm.
Public/Granted literature
- US20140091263A1 Novel Polyvinyl Sulfonic Acid, Production Method Thereof, and Use Thereof Public/Granted day:2014-04-03
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