Invention Grant
- Patent Title: Method for producing the 2-acrylamido-2-methylpropane sulfonic acid monomer and polymer comprising said monomer
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Application No.: US15753577Application Date: 2016-09-16
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Publication No.: US10662149B2Publication Date: 2020-05-26
- Inventor: Cédrick Favero , Johann Kieffer
- Applicant: S.P.C.M. SA
- Applicant Address: FR Andrezieux Boutheon
- Assignee: S.P.C.M. SA
- Current Assignee: S.P.C.M. SA
- Current Assignee Address: FR Andrezieux Boutheon
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@49b79096
- International Application: PCT/FR2016/052359 WO 20160916
- International Announcement: WO2017/046546 WO 20170323
- Main IPC: C07C303/00
- IPC: C07C303/00 ; C07C303/02 ; C07C303/20 ; C07C303/22 ; C08F20/58
Abstract:
The invention relates to a method for producing 2-acrylamido-2-methylpropane sulfonic acid. Said method consists in reacting together acrylonitrile, fuming sulfuric acid and isobutylene. It is characterized in that the isobutylene contains less than 1000 ppm of butadiene and less than 1000 ppm of butene.
Public/Granted literature
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