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    Fine cationic polymer dispersions
    4.
    发明专利
    Fine cationic polymer dispersions 有权

    公开(公告)号：JP5328668B2

    公开(公告)日：2013-10-30

    申请号：JP2009540748

    申请日：2007-12-11

    Applicant: ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

    Inventor： ブロックマイアー アンドレアス ,  レーマン ティートゥス ,  エトル ローラント

    IPC: C08F2/28 ,  C08F220/00

    CPC classification number: 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

    Abstract: 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.

    Graft copolymer, its preparation, and its use in capillary electrophoresis
    10.
    发明专利
    Graft copolymer, its preparation, and its use in capillary electrophoresis 有权
    GRAFT共聚物，其制备及其在毛细管电泳中的用途

    公开(公告)号：JP2009046686A

    公开(公告)日：2009-03-05

    申请号：JP2008241864

    申请日：2008-09-19

    Applicant: Applera Corp ,  アプレラ コーポレイション

    Inventor： LAU ALDRICH N K

    IPC: C08L51/00 ,  C08F2/32 ,  C08F265/10 ,  C08K5/09 ,  C08K5/42 ,  C08L1/00 ,  C08L33/26 ,  C12Q1/68 ,  G01N27/447

    CPC classification number: C08L51/003 ,  C08F2/32 ,  C08F120/54 ,  C08F120/56 ,  C08F220/54 ,  C08F265/10 ,  C08F267/10 ,  C08L33/24 ,  C08L33/26 ,  C12Q1/6806 ,  G01N27/44747 ,  G01N27/44791 ,  C08F220/52 ,  C08L2666/24 ,  C08L2666/04 ,  C08L2666/02 ,  C08F220/56

    Abstract: PROBLEM TO BE SOLVED: To provide a graft copolymer, its preparation, and a composition (such as separation medium for electrophoresis) containing the same. SOLUTION: The present invention relates to an ultrahigh molecular weight poly(N,N-dimethylacrylamide) ("poly(DMA)")polymer, its preparation, and composition (such as a separation medium for electrophoresis) containing it, and, more specifically, to a method wherein supporters (such as capillaries) containing the polymers and capillary electrophoresis are used to separate a biomolecule (particularly a polynucleotide). The graft copolymer can be prepared by grafting of polyacrylamide units onto poly(DMA) skeletals. Such a graft-copolymer or an ultrahigh molecular weight poly(DMA) polymer can be separated, to provide performances which is excellent in analysis and separation of the biomolecule by capillary electrophoresis. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 待解决的问题：提供接枝共聚物，其制备方法和含有它的组合物（如电泳用分离介质）。 解决方案：本发明涉及超高分子量聚（N，N-二甲基丙烯酰胺）（“聚（DMA）”）聚合物，其制备方法和组合物（如用于电泳的分离介质），含有它 更具体地，涉及一种其中使用含有聚合物和毛细管电泳的支持体（如毛细血管）分离生物分子（特别是多核苷酸）的方法。 接枝共聚物可以通过将聚丙烯酰胺单元接枝到聚（DMA）骨架上来制备。 可以分离这种接枝共聚物或超高分子量聚（DMA）聚合物，以提供通过毛细管电泳分析和分离生物分子的优异性能。 版权所有（C）2009，JPO＆INPIT

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