Invention Grant
US07847044B2 Method of producing water-soluble nonturbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer by polymerization under increased pressure
有权
通过在增加的压力下聚合制备至少一种水溶性N-乙烯基内酰胺和至少一种疏水性共聚单体的水溶性非混浊共聚物的方法
- Patent Title: Method of producing water-soluble nonturbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer by polymerization under increased pressure
- Patent Title (中): 通过在增加的压力下聚合制备至少一种水溶性N-乙烯基内酰胺和至少一种疏水性共聚单体的水溶性非混浊共聚物的方法
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Application No.: US11643222Application Date: 2006-12-21
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Publication No.: US07847044B2Publication Date: 2010-12-07
- Inventor: Rainer Dobrawa , Ralf Widmaier , Eberhard Schupp , Klaus Schnell , Karl-Hermann Strube , Ulrich Filges , Jürgen Nieberle , Josef Neutzner , Reinhold Dieing , Andreas Gruber , Wolfgang Bouquet
- Applicant: Rainer Dobrawa , Ralf Widmaier , Eberhard Schupp , Klaus Schnell , Karl-Hermann Strube , Ulrich Filges , Jürgen Nieberle , Josef Neutzner , Reinhold Dieing , Andreas Gruber , Wolfgang Bouquet
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Connolly Bove Lodge & Hutz LLP
- Priority: DE102005062355 20051223
- Main IPC: C08F26/10
- IPC: C08F26/10 ; C08F218/08
Abstract:
Method of producing copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator, where the polymerization is carried out under a gauge pressure such that evaporation of the components is avoided.
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