Invention Grant
- Patent Title: Water-soluble, hydrophobically associating copolymers having novel hydrophobically associating monomers
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Application No.: US14652648Application Date: 2013-12-13
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Publication No.: US09777094B2Publication Date: 2017-10-03
- Inventor: Christian Bittner , Björn Langlotz , Benjamin Wenzke , Christian Spindler , Roland Reichenbach-Klinke
- 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: EP12197504 20121217
- International Application: PCT/EP2013/076523 WO 20131213
- International Announcement: WO2014/095621 WO 20140626
- Main IPC: C08F220/56
- IPC: C08F220/56 ; C09K8/588 ; E21B43/20 ; C08F216/14

Abstract:
The present invention relates to water-soluble hydrophobically associating copolymers which are obtained in the presence of a nonpolymerizable surface-active compound and which comprise novel hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether block, the polyether block comprising a hydrophilic polyethyleneoxy block and a hydrophobic polyalkyleneoxy block consisting of alkyleneoxy units having at least 4 carbon atoms. The monomers may optionally have a terminal polyethyleneoxy block. The invention further relates to processes for preparing the copolymers and to the use thereof.
Public/Granted literature
- US20150329660A1 WATER-SOLUBLE, HYDROPHOBICALLY ASSOCIATING COPOLYMERS HAVING NOVEL HYDROPHOBICALLY ASSOCIATING MONOMERS Public/Granted day:2015-11-19
Information query
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