Invention Grant
- Patent Title: Process for preparing a macromonomer
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Application No.: US14652244Application Date: 2013-12-13
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Publication No.: US09657137B2Publication Date: 2017-05-23
- Inventor: Christian Bittner , Björn Langlotz , Benjamin Wenzke , Christian Spindler , Roland Reichenbach-Klinke , Markus Klumpe , Nicole Meier , Ulrich Annen , Thomas Ostrowski
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Drinker Biddle & Reath LLP
- Priority: EP12197538 20121217
- International Application: PCT/EP2013/076499 WO 20131213
- International Announcement: WO2014/095608 WO 20140626
- Main IPC: C08G65/26
- IPC: C08G65/26 ; C08F216/14 ; C08F290/06

Abstract:
The present invention relates to a process for preparing hydrophobically associating macromonomers M and to the novel macromonomers prepared by means of the process according to the invention. The macromonomers M comprise a copolymerizable, ethylenically unsaturated group and a polyether structure in block form, the latter consisting of a polyethyleneoxy block and a hydrophobic polyalkyleneoxy block consisting of alkyleneoxy units having at least 4 carbon atoms. Optionally, the macromonomers M may have a terminal polyethyleneoxy block. The macromonomers prepared by the process according to the invention are suitable for reaction with further monomers, especially with acrylamide, to give a water-soluble, hydrophobically associating copolymer.
Public/Granted literature
- US20150329669A1 PROCESS FOR PREPARING A MACROMONOMER Public/Granted day:2015-11-19
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