Invention Grant
US07956156B2 Method for the removal of isobutene oligomers from an isobutene polymer
失效
从异丁烯聚合物中除去异丁烯低聚物的方法
- Patent Title: Method for the removal of isobutene oligomers from an isobutene polymer
- Patent Title (中): 从异丁烯聚合物中除去异丁烯低聚物的方法
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Application No.: US12514899Application Date: 2007-11-13
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Publication No.: US07956156B2Publication Date: 2011-06-07
- Inventor: Hans Peter Rath , Phillip Hanefeld , Helmut Mach
- Applicant: Hans Peter Rath , Phillip Hanefeld , Helmut Mach
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP06124070 20061114
- International Application: PCT/EP2007/062286 WO 20071113
- International Announcement: WO2008/058970 WO 20080522
- Main IPC: C08G63/02
- IPC: C08G63/02 ; C08G63/00
Abstract:
A process is described for removing isobutene oligomers from an isobutene polymer by stripping the isobutene polymer with vapors of a saturated hydrocarbon having at least 8 carbon atoms and at least partly driving out the isobutene oligomers. Troublesome isobutene oligomers are substantially removed without impairing the reactivity of the isobutene polymer (expressed as the content of the methylidene double bonds).
Public/Granted literature
- US20100004427A1 METHOD FOR THE REMOVAL OF ISOBUTENE OLIGOMERS FROM AN ISOBUTENE POLYMER Public/Granted day:2010-01-07
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