Invention Grant
US07868093B2 Method for producing blends consisting of polystyrene and of a cross-linked polyvinyl pyrrolidone having a reduced styrene residual monomer content
有权
用于生产由聚苯乙烯和具有降低的苯乙烯残留单体含量的交联聚乙烯吡咯烷酮组成的共混物的方法
- Patent Title: Method for producing blends consisting of polystyrene and of a cross-linked polyvinyl pyrrolidone having a reduced styrene residual monomer content
- Patent Title (中): 用于生产由聚苯乙烯和具有降低的苯乙烯残留单体含量的交联聚乙烯吡咯烷酮组成的共混物的方法
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Application No.: US11908643Application Date: 2006-03-14
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Publication No.: US07868093B2Publication Date: 2011-01-11
- Inventor: Klemens Mathauer , Marianna Pierobon , Tobias Petsch , Karl-Otto Heilmann , Michael Kerber , Robert Bayer
- Applicant: Klemens Mathauer , Marianna Pierobon , Tobias Petsch , Karl-Otto Heilmann , Michael Kerber , Robert Bayer
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Connolly Bove Lodge & Hutz LLP
- Priority: DE102005012484 20050316
- International Application: PCT/EP2006/060703 WO 20060314
- International Announcement: WO2006/097470 WO 20060921
- Main IPC: C08L25/02
- IPC: C08L25/02 ; C08L33/00 ; C08L35/00 ; C08L39/00
Abstract:
Process for removal of residual styrene monomers from polystyrene and from blends comprising water-insoluble, crosslinked polyvinylpyrrolidone, via treatment with water, which comprises carrying out the treatment on a particulate solid blend.
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