利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.026 秒)

    FINELY DIVIDED, CATIONIC POLYMER DISPERSIONS
    2.
    发明申请
    FINELY DIVIDED, CATIONIC POLYMER DISPERSIONS 审中-公开

    公开(公告)号：US20100022701A1

    公开(公告)日：2010-01-28

    申请号：US12519001

    申请日：2007-12-11

    申请人： Andreas Brockmeyer ,  Titus Leman ,  Roland Ettl

    发明人： Andreas Brockmeyer ,  Titus Leman ,  Roland Ettl

    IPC分类号： C08L33/08 ,  C08L33/10

    CPC分类号： C08F20/44 ,  C08F2/10 ,  C08F2/22 ,  C08F2/28 ,  C08F220/18 ,  C08F220/34 ,  C08F220/44 ,  C08F220/60 ,  C08F257/02 ,  C08F265/00 ,  C08F265/04 ,  C08F265/06 ,  C08F265/10 ,  C08L51/003 ,  C09D133/24 ,  C09D151/003 ,  D21H17/37 ,  D21H17/375 ,  D21H17/44 ,  D21H17/45 ,  D21H21/16 ,  C08L2666/04 ,  C08L2666/02

    摘要： Finely divided, cationic polymer dispersions which are obtainable by emulsion polymerization of ethylenically unsaturated monomers in an aqueous solution of a cationic prepolymer as a dispersant, wherein a cationic prepolymer is first prepared by polymerization of (a) from 10 to 45% by weight of at least one (meth)acrylate which has an amino group and/or a quaternary ammonium group, and/or one (meth)acrylamide which carries an amino group and/or a quaternary ammonium group, (b) from 40 to 85% by weight of at least one optionally substituted styrene, (c) from 0 to 20% by weight of acrylonitrile or methacrylonitrile, (d) from 1 to 15% by weight of at least one ethylenically unsaturated carboxylic acid or one ethylenically unsaturated carboxylic anhydride and (e) from 0 to 20% by weight of at least one nonionic, ethylenically unsaturated monomer differing from the monomers (b) and (c), the sum of (a)+(b)+(c)+(d)+(e) being 100% by weight, in a solution polymerization in a water-miscible organic solvent, and the solution of prepolymer thus prepared is diluted with water, and wherein an emulsion polymerization of a monomer mixture comprising (i) from 30 to 80% by weight of acrylonitrile and/or methacrylonitrile, (ii) from 5 to 50% by weight of at least one C1- to C4-alkyl acrylate or at least one C1- to C4-alkyl methacrylate, (iii) from 5 to 50% by weight of at least one C6- to C14-alkyl acrylate or at least one C6- to C14-alkyl methacrylate and (iv) from 0 to 20% by weight of a nonionic monomer differing from the monomers (i), (ii) and (iii), the sum (i)+(ii)+(iii)+(iv) being 100% by weight, is then carried out in the aqueous solution of the prepolymer in the presence of water-soluble polymerization initiators, and the use of the finely divided, cationic polymer dispersions thus obtainable as engine sizes and surface sizes for paper, board and cardboard.

    FINELY DIVIDED, STARCH-CONTAINING POLYMER DISPERSIONS
    4.
    发明申请
    FINELY DIVIDED, STARCH-CONTAINING POLYMER DISPERSIONS 审中-公开
    精细分散，含淀粉的聚合物分散体

    公开(公告)号：US20100324178A1

    公开(公告)日：2010-12-23

    申请号：US12518002

    申请日：2007-12-11

    申请人： Andreas Brockmeyer ,  Titus Leman ,  Roland Ettl

    发明人： Andreas Brockmeyer ,  Titus Leman ,  Roland Ettl

    IPC分类号： C08L3/02 ,  C01B25/18

    CPC分类号： C08F2/24 ,  C08F4/40 ,  D21H17/28

    摘要： Finely divided starch-containing polymer dispersions which are obtainable by free radical emulsion copolymerization of ethylenically unsaturated monomers in the presence of a redox initiator and an enzymatically degraded starch, the enzymatic starch degradation being stopped by adding an acid comprising at least one phosphorus atom to the reaction mixture, use of an acid comprising at least one phosphorus atom for stopping the enzymatic degradation of starch and use of the finely divided, starch-containing polymer dispersions of emulsion polymers as size for paper and paper products, in particular as surface size.

    摘要翻译： 通过在氧化还原引发剂和酶促降解的淀粉的存在下通过烯键式不饱和单体的自由基乳液共聚获得的细分散的含淀粉聚合物分散体，通过向至少一个磷原子加入包含至少一个磷原子的酸来停止酶淀粉降解 反应混合物，使用包含至少一个磷原子的酸来停止淀粉的酶促降解，并且使用乳状聚合物的细分散的含淀粉聚合物分散体作为纸和纸产品的尺寸，特别是作为表面尺寸。