Invention Grant
- Patent Title: Method for producing polymer blends suited for use as filters
- Patent Title (中): 适用于过滤器的聚合物共混物的制备方法
-
Application No.: US11908633Application Date: 2006-03-14
-
Publication No.: US07767125B2Publication Date: 2010-08-03
- Inventor: Klemens Mathauer , Marianna Pierobon , Tobias Petsch , Simone Schillo , Michael Kerber , Frank Müller
- Applicant: Klemens Mathauer , Marianna Pierobon , Tobias Petsch , Simone Schillo , Michael Kerber , Frank Müller
- Applicant Address: DE
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE
- Agency: Connolly Bove Lodge & Hutz LLP
- Priority: DE102005012483 20050316
- International Application: PCT/EP2006/060702 WO 20060314
- International Announcement: WO2006/097469 WO 20060921
- Main IPC: D01F1/02
- IPC: D01F1/02 ; B01D37/02
Abstract:
Process for production of polymer blends which are suitable as filter aids and are composed of polystyrene and of crosslinked water-insoluble polyvinylpyrrolidones via processing of the two components in an extruder, which comprises melting polystyrene in an extruder and then treating it with the polyvinylpyrrolidone, and adding, to the mixture of the components, from 0.1 to 10% by weight of water, based on the total amount of polystyrene and popcorn polymer, and extruding and comminuting the mixture.
Public/Granted literature
- US20080146741A1 Method for Producing Polymer Blends Suited for Use as Filters Public/Granted day:2008-06-19
Information query
