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    Solid dispersions made of thermoplastic polymers and suitable as filter aids
    14.
    发明专利
    Solid dispersions made of thermoplastic polymers and suitable as filter aids 未知

    公开(公告)号：ZA200904604B

    公开(公告)日：2010-09-29

    申请号：ZA200904604

    申请日：2009-07-01

    Applicant: BASF SE

    Inventor： MATHAUER KLEMENS ,  PIEROBON MARIANNA ,  SCHILLO SIMONE ,  WIDMAIER RALF

    IPC: B01D20060101 ,  B01J20060101 ,  C12H20060101

    Abstract: Solid dispersions of thermoplastic polymers and a crosslinked water-insoluble polymer, which solid dispersions are suitable as filter aids, wherein the solid dispersions comprise 20 to 95% by weight of at least one thermoplastic polymer (component A) and 5 to 80% by weight of at least one crosslinked water-insoluble polymer selected from the group consisting of homopolymers of N-vinylformamide, N-vinylcaprolactam, N-vinylpiperidone, N-vinylpyridines, N-vinylimidazoles, styrene monomers, acrylates and methacrylates and also copolymers of basic N-vinyl compounds, styrene monomers, acrylates and methacrylates (component B).

    16.
    发明专利
    未知

    公开(公告)号：DE102007052412A1

    公开(公告)日：2008-06-05

    申请号：DE102007052412

    申请日：2007-11-02

    Applicant: BASF SE

    Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  SCHNELL KLAUS ,  STRUBE KARL-HERMANN ,  NIEBERLE JUERGEN ,  DIEING REINHOLD ,  POTZOLLI BERND DE ,  GRUBER ANDREAS ,  FILGES ULRICH ,  MEISTER MARTIN ,  NEUTZNER JOSEF ,  BOUQUET WOLFGANG ,  SCHUPP EBERHARD

    IPC: C08F2/06 ,  C08F218/08 ,  C08F226/10

    Abstract: Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein: (A) comprises (i) polymerization under reflux, and at least two of (ii), (iii), (iv), (v), (vi), and (vii), wherein (ii) comprises an addition of at least 5 mol % of N-vinyllactam to the polymerization mixture if at least 70 mol % of the total amount of hydrophobic monomer used have completely reacted, (iii) comprises return of condensate formed in the reflux from below to the polymerization mixture, (iv) comprises introduction of the initiator in the form of a solution in an organic solvent from below into the polymerization mixture, (v) comprises addition of N-vinyllactam to the reflux, (vi) comprises distilling off a portion of the organic solvent and continuing the polymerization following conversion of 70 to 99% by weight of the N-vinyllactam used, and (vii) comprises introduction of at least one monomer from below into the polymerization mixture; and wherein (B) comprises (viii) polymerization under a superatmospheric pressure such that vaporization of the polymerization components is avoided, and at least one of (i), (ii), (iii), (iv), (v), (vi), and (vii), with the proviso that a combination of (viii) with any of (i), (iii) or (v) is carried out sequentially.

    17.
    发明专利
    未知

    公开(公告)号：BRPI0717304A2

    公开(公告)日：2013-10-15

    申请号：BRPI0717304

    申请日：2007-12-03

    Applicant: BASF SE

    Inventor： MATHAUER KLEMENS ,  PIEROBON MARIANNA ,  SCHILLO SIMONE ,  WIDMAIER RALF

    IPC: B01D37/02 ,  B01J20/26 ,  C12H1/04

    Abstract: Solid dispersions of thermoplastic polymers and a crosslinked water-insoluble polymer, which solid dispersions are suitable as filter aids, wherein the solid dispersions comprise 20 to 95% by weight of at least one thermoplastic polymer (component A) and 5 to 80% by weight of at least one crosslinked water-insoluble polymer selected from the group consisting of homopolymers of N-vinylformamide, N-vinylcaprolactam, N-vinylpiperidone, N-vinylpyridines, N-vinylimidazoles, styrene monomers, acrylates and methacrylates and also copolymers of basic N-vinyl compounds, styrene monomers, acrylates and methacrylates (component B).

    DISPERSIONES SOLIDAS HECHAS DE POLIMEROS TERMOPLASTICOS Y ADECUADAS COMO AUXILIARES DE FILTROS.
    19.
    发明专利
    DISPERSIONES SOLIDAS HECHAS DE POLIMEROS TERMOPLASTICOS Y ADECUADAS COMO AUXILIARES DE FILTROS. 未知

    公开(公告)号：MX2009004195A

    公开(公告)日：2009-04-30

    申请号：MX2009004195

    申请日：2007-12-03

    Applicant: BASF SE

    Inventor： MATHAUER KLEMENS ,  PIEROBON MARIANNA ,  SCHILLO SIMONE ,  WIDMAIER RALF

    IPC: B01D37/02 ,  B01J20/26 ,  C12H1/04

    Abstract: Dispersiones sólidas adecuadas para auxiliares de filtro y hechas de polímeros termoplásticos y un polímero soluble no en agua entrelazado, en donde las dispersiones sólidas consisten de 20 a 95% en peso de por lo menos un polímero termoplástico (componente A) y de 5 a 80% en peso de por lo menos un polímero no soluble en agua entrelazado del grupo que consiste de homopolímeros de N-vinol formamida, N-vinil caprolactama, N-vinil piperidona, N-vinil imidazoles, monómeros de estireno, acrilatos y acrilatos de metilo y copolímeros de compuestos N-vinilo, monómeros de estireno, acrilatos y acrilatos de metilo componente B).

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