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    VERWENDUNG VON 2-HYDROXY-2-SULFINATOESSIGSÄURE ODER DEREN SALZEN ALS INITIATOR IN W/O-EMULSIONEN
    1.
    发明授权
    VERWENDUNG VON 2-HYDROXY-2-SULFINATOESSIGSÄURE ODER DEREN SALZEN ALS INITIATOR IN W/O-EMULSIONEN 有权
    使用2-羟基-2-亚磺酸基或他们作为引发剂盐的W / O乳液

    公开(公告)号：EP1658314B1

    公开(公告)日：2007-09-12

    申请号：EP04764341.6

    申请日：2004-08-20

    申请人： BASF Aktiengesellschaft

    发明人： FRANK, Jürgen ,  RENZ, Günter ,  SCHUPP, Eberhard ,  STEINMETZ, Bernhard ,  MOLTER, Stefan ,  BAYER, Karl

    IPC分类号： C08F4/40 ,  C08F20/00

    CPC分类号： C08F4/40 ,  C08F2/32

    摘要： The invention relates to a method for producing homopolymers or copolymers by the homopolymerization or copolymerization of radically polymerizable water-soluble and/or water-dispersible monomers, optionally with additional comonomers and optionally with at least one cross-linking agent, in an inverse emulsion polymerization in the presence of at least one redox initiator pair comprising an oxidant and a reductant, said reductant being 2-hydroxy-2-sulfinato acetic acid and/or the salt thereof. The invention also relates to: homopolymers or copolymers that can be produced according to said method; water-in-oil emulsions containing at least one inventive homopolymer or copolymer; solid compositions containing at least one inventive homopolymer or copolymer; the use of 2-hydroxy-2-sulfinato acetic acid and/or the salt thereof as a reductant in a method for producing homopolymers or copolymers; the use of the water-in-oil emulsion containing at least one inventive homopolymer or copolymer for thickening aqueous solutions; and the use of 2-hydroxy-2-sulfinato acetic acid and/or the salt thereof as a reduction component in a redox initiator pair comprising an oxidant and a reductant, to avoid induction periods in the inverse emulsion polymerization.

    VERWENDUNG VON 2-HYDROXY-2-SULFINATOESSIGSÄURE ODER DEREN SALZEN ALS INITIATOR IN W/O-EMULSIONEN
    6.
    发明公开
    VERWENDUNG VON 2-HYDROXY-2-SULFINATOESSIGSÄURE ODER DEREN SALZEN ALS INITIATOR IN W/O-EMULSIONEN 有权
    使用2-羟基-2-亚磺酸基或他们作为引发剂盐的W / O乳液

    公开(公告)号：EP1658314A1

    公开(公告)日：2006-05-24

    申请号：EP04764341.6

    申请日：2004-08-20

    申请人： BASF Aktiengesellschaft

    发明人： FRANK, Jürgen ,  RENZ, Günter ,  SCHUPP, Eberhard ,  STEINMETZ, Bernhard ,  MOLTER, Stefan ,  BAYER, Karl

    IPC分类号： C08F4/40 ,  C08F20/00

    CPC分类号： C08F4/40 ,  C08F2/32

    摘要： The invention relates to a method for producing homopolymers or copolymers by the homopolymerization or copolymerization of radically polymerizable water-soluble and/or water-dispersible monomers, optionally with additional comonomers and optionally with at least one cross-linking agent, in an inverse emulsion polymerization in the presence of at least one redox initiator pair comprising an oxidant and a reductant, said reductant being 2-hydroxy-2-sulfinato acetic acid and/or the salt thereof. The invention also relates to: homopolymers or copolymers that can be produced according to said method; water-in-oil emulsions containing at least one inventive homopolymer or copolymer; solid compositions containing at least one inventive homopolymer or copolymer; the use of 2-hydroxy-2-sulfinato acetic acid and/or the salt thereof as a reductant in a method for producing homopolymers or copolymers; the use of the water-in-oil emulsion containing at least one inventive homopolymer or copolymer for thickening aqueous solutions; and the use of 2-hydroxy-2-sulfinato acetic acid and/or the salt thereof as a reduction component in a redox initiator pair comprising an oxidant and a reductant, to avoid induction periods in the inverse emulsion polymerization.

    VERFAHREN ZUR HERSTELLUNG EINES PARTIKELFÖRMIGEN POLYMERISATES
    8.
    发明授权
    VERFAHREN ZUR HERSTELLUNG EINES PARTIKELFÖRMIGEN POLYMERISATES 失效
    用于生产粒状聚合物

    公开(公告)号：EP0920454B1

    公开(公告)日：2002-07-10

    申请号：EP97937551.6

    申请日：1997-08-05

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： MC KEE, Graham, Edmund ,  RENZ, Günter ,  JAHNS, Ekkehard ,  KASTENHUBER, Walter

    IPC分类号： C08F2/22

    CPC分类号： G03G9/0806 ,  C08F291/00 ,  C08F2/22

    摘要： In a process for producing a particulate polymer P with a mean particle diameter d50 from 0.1 to 50 νm, an emulsion E is produced from one or more monomers M which can be polymerised into the polymer P by radical polymerisation, water and at least one protective colloid SK under high shearing forces, and the emulsion E is polymerised in a reactor by using a radical polymerisation initiator RI. The process is characterised in that maximum 75 wt % of the emulsion E ('initial proportion of E') are initially fed into the reactor before polymerisation begins, and in that at least 25 wt % of the emulsion E ('added proportion of E') are only fed into the reactor after the polymerisation begins.

    VERFAHREN ZUR HERSTELLUNG EINES PARTIKELFÖRMIGEN POLYMERISATES
    10.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINES PARTIKELFÖRMIGEN POLYMERISATES 失效
    用于生产粒状聚合物

    公开(公告)号：EP0920454A1

    公开(公告)日：1999-06-09

    申请号：EP97937551.0

    申请日：1997-08-05

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： MC KEE, Graham, Edmund ,  RENZ, Günter ,  JAHNS, Ekkehard ,  KASTENHUBER, Walter

    IPC分类号： C08F2 ,  C08F20 ,  C08F265 ,  C08F291 ,  G03G9

    CPC分类号： G03G9/0806 ,  C08F291/00 ,  C08F2/22

    摘要： In a process for producing a particulate polymer P with a mean particle diameter d50 from 0.1 to 50 νm, an emulsion E is produced from one or more monomers M which can be polymerised into the polymer P by radical polymerisation, water and at least one protective colloid SK under high shearing forces, and the emulsion E is polymerised in a reactor by using a radical polymerisation initiator RI. The process is characterised in that maximum 75 wt % of the emulsion E ('initial proportion of E') are initially fed into the reactor before polymerisation begins, and in that at least 25 wt % of the emulsion E ('added proportion of E') are only fed into the reactor after the polymerisation begins.