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115 条记录 (耗时 0.029 秒)

    Method for producing paper, paperboard and cardboard using an uncrosslinked fixing agent during paper stock draining
    41.
    发明授权
    Method for producing paper, paperboard and cardboard using an uncrosslinked fixing agent during paper stock draining 有权
    纸张排水期间使用未交联固定剂生产纸，纸板和纸板的方法

    公开(公告)号：US06576086B1

    公开(公告)日：2003-06-10

    申请号：US09403769

    申请日：1999-11-02

    申请人： Roland Ettl ,  Hubert Meixner ,  Anton Esser ,  Rainer Scholz ,  Norbert Mahr ,  Ulrich Steuerle ,  Matthias Höne ,  Klaus Lorenz

    发明人： Roland Ettl ,  Hubert Meixner ,  Anton Esser ,  Rainer Scholz ,  Norbert Mahr ,  Ulrich Steuerle ,  Matthias Höne ,  Klaus Lorenz

    IPC分类号： D21C2110

    CPC分类号： C08G73/0206 ,  C08F8/32 ,  C08F8/44 ,  C08G73/028 ,  D21H17/08 ,  D21H17/14 ,  D21H17/17 ,  D21H17/37 ,  D21H17/38 ,  D21H17/49 ,  D21H17/55 ,  D21H17/56 ,  D21H21/10 ,  D21H21/16

    摘要： Paper, board and cardboard are produced by draining paper stock containing interfering substances in the presence of fixing agents by a process in which the fixing agents used are reaction products which are obtainable by reacting amino- and/or ammonium-containing polymers selected from the group consisting of the polymers containing vinylamine units polyalkylene polyamines polyamidoamines ethyleneimine-grafted polyamidoamines which may be crosslinked, polydiallyldimethylammonium chlorides polymers containing dialkylaminoalkylacrylamide units or dialkylaminoalkylmethacrylamide units and polyallylamines and dicyandiamide and formaldehyde condensates with reactive sizes for paper in a weight ratio of polymer to reactive size of from 15,000:1 to 1:1, and the reaction products thus obtainable are used as fixing agents for water-soluble and for water-insoluble interfering substances in the production of paper, board and cardboard from paper stocks containing interfering substances.

    摘要翻译： 纸，纸板和纸板是通过在固定剂存在下排出含有干扰物质的纸原料而制备的，其中所用的固定剂是通过使选自下组的氨基和/或含铵聚合物反应获得的反应产物 由聚合物单体聚亚烷基多胺聚酰氨基亚胺亚甲基亚胺接枝的聚酰氨基胺，其可以是交联的，含二烷基氨基烷基丙烯酰胺单元或二烷基氨基烷基甲基丙烯酰胺单元的聚二烯丙基二甲基氯化铵聚合物和聚烯丙基胺和双氰胺和甲醛缩合物，聚合物与反应性大小的重量比为15,000:1至1:1 ，由此可得到的反应产物用作纸，纸板和纸板的水溶性固定剂和含有干扰物质的纸料的水不溶性干扰物质。

    Method for producing polyols
    45.
    发明授权
    Method for producing polyols 有权
    生产多元醇的方法

    公开(公告)号：US08501904B2

    公开(公告)日：2013-08-06

    申请号：US12999362

    申请日：2009-04-06

    申请人： Klaus Lorenz ,  Arnulf Werner ,  Marcus Eichmann

    发明人： Klaus Lorenz ,  Arnulf Werner ,  Marcus Eichmann

    IPC分类号： C08G59/14 ,  C08G59/18 ,  C08G59/20 ,  C08G59/00 ,  C08G65/00

    CPC分类号： C08G65/30 ,  C08G65/2621 ,  C08G65/2624 ,  C08G65/2648

    摘要： A process for the preparation of a polyol which includes reacting an amino-group-containing starter compound with an alkylene oxide in the presence of a catalyst to form a polyol, wherein the catalyst is based on a compound selected from the group consisting of alkali metal hydroxides, alkali, alkaline earth metal hydrides, alkaline earth metal carboxylates, and alkaline earth hydroxides, and wherein the catalyst is present in an amount of from 0.004 to 0.1 wt. % based on the amount of polyol; and neutralizing the polyol with from 0.75 to 1 mol of sulfuric acid per mol of catalyst used.

    摘要翻译： 一种制备多元醇的方法，其包括在催化剂存在下使含氨基的起始化合物与烯化氧反应以形成多元醇，其中所述催化剂基于选自碱金属 氢氧化物，碱金属，碱土金属氢化物，碱土金属羧酸盐和碱土金属氢氧化物，其中催化剂的存在量为0.004至0.1wt。 基于多元醇的量％ 并用每摩尔催化剂使用0.75至1摩尔硫酸中和多元醇。

    PROCESS FOR PRODUCING POLYESTER POLYOLS HAVING SECONDARY OH END GROUPS
    47.
    发明申请
    PROCESS FOR PRODUCING POLYESTER POLYOLS HAVING SECONDARY OH END GROUPS 有权
    生产具有二级OH末端组的聚酯多元醇的方法

    公开(公告)号：US20120116114A1

    公开(公告)日：2012-05-10

    申请号：US13318157

    申请日：2010-05-04

    申请人： Hartmut Nefzger ,  Erika Bauer ,  Jörg Hofmann ,  Klaus Lorenz ,  Bert Klesczewski

    发明人： Hartmut Nefzger ,  Erika Bauer ,  Jörg Hofmann ,  Klaus Lorenz ,  Bert Klesczewski

    IPC分类号： C07C271/22 ,  C07C69/708 ,  C09K3/00 ,  C07C67/343

    CPC分类号： C08G63/914 ,  C08G18/4261 ,  C08G63/87

    摘要： The invention relates to a process for producing polyester polyols with secondary hydroxyl end groups, including the step of the reaction of a polyester including carboxyl end groups with an epoxide of the general formula (1): wherein R1 stands for an alkyl residue or an aryl residue and the reaction is carried out in the presence of a catalyst that includes at least one nitrogen atom per molecule. The process is distinguished in that the polyester including carboxyl end groups exhibits an acid value from ≧25 mg KOH/g to ≦400 mg KOH/g and a hydroxyl value from ≦5 mg KOH/g and in that the polyester including carboxyl end groups is produced by ≧1.03 mol to ≦1.90 mol carboxyl groups or carboxyl-group equivalents of an acid component being employed per mol hydroxyl groups of an alcohol. The polyester polyols obtained, including secondary hydroxyl end groups, can be used for the purpose of producing polyurethane polymers.

    摘要翻译： 本发明涉及一种生产具有仲羟基端基的聚酯多元醇的方法，包括包括羧基端基的聚酯与通式（1）的环氧化物反应的步骤：其中R1代表烷基或芳基 残基，反应在每分子包含至少一个氮原子的催化剂存在下进行。 该方法的区别在于包括羧基端基的聚酯显示出≥25mgKOH / g至≥1000的KOH值，400mg KOH / g的酸值和来自＆lt; NEE的5K KOH / g的羟值，并且包括羧基的聚酯 端基是由醇的每摩尔羟基使用的≥1.03摩尔至1升; 1.90摩尔羧基或酸组分的羧基当量。 得到的聚酯多元醇（包括仲羟基端基）可用于制备聚氨酯聚合物。

    PROCESS FOR THE PREPARATION OF POLYETHER POLYOLS
    48.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYETHER POLYOLS 有权
    制备聚醚多元醇的方法

    公开(公告)号：US20100125126A1

    公开(公告)日：2010-05-20

    申请号：US12693477

    申请日：2010-01-26

    申请人： Klaus Lorenz ,  Jörg Hofmann

    发明人： Klaus Lorenz ,  Jörg Hofmann

    IPC分类号： C08G18/00 ,  C07C43/00 ,  B01J31/00

    CPC分类号： B01J27/26 ,  C08G18/36 ,  C08G18/4866 ,  C08G65/2663 ,  C08G2190/00 ,  Y10S521/914

    摘要： The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned catalysts and the use of the polyether polyols prepared in this way for the preparation of polyurethane materials.

    摘要翻译： 本发明提供了一种调节双金属氰化物（DMC）催化剂的方法，其用于制备基于具有活性氢原子的起始化合物的聚醚多元醇，使用经调节的催化剂制备聚醚多元醇以及使用聚醚多元醇 以这种方式制备用于制备聚氨酯材料。

    AQUEOUS ALKYLKETENE DIMER DISPERSIONS
    50.
    发明申请
    AQUEOUS ALKYLKETENE DIMER DISPERSIONS 有权
    水性阿尔茨海默分散剂

    公开(公告)号：US20090139677A1

    公开(公告)日：2009-06-04

    申请号：US12303253

    申请日：2007-06-01

    申请人： Christoph Hamers ,  Andreas Brockmeyer ,  Markus Schmid ,  Klaus Lorenz ,  Ulrich Riebeling

    发明人： Christoph Hamers ,  Andreas Brockmeyer ,  Markus Schmid ,  Klaus Lorenz ,  Ulrich Riebeling

    IPC分类号： D21H17/28 ,  C09K3/00

    CPC分类号： D21H17/17 ,  D21H17/23 ,  D21H17/29 ,  D21H17/66 ,  D21H21/16 ,  D21H27/10

    摘要： Aqueous alkyl ketene dimer dispersions which comprise at least 15% by weight of an alkyl ketene dimer and at least one water-soluble cationic starch, aluminum sulfate and at least one condensate of naphthalenesulfonic acid and formaldehyde or lignin sulfonic acid or in each case salts thereof, the dispersions comprising, based in each case on alkyl ketene dimer, from 2 to 50% by weight of aluminum sulfate, and in which the dispersions additionally comprise from 0.1 to 5% by weight of a saturated carboxylic acid having 1 to 10 carbon atoms, benzenesulfonic acid, p-toluenesulfonic acid and/or a mineral acid at an aluminum sulfate content of from 2 to 15% by weight, and the use of the dispersions as engine size and surface size for paper and paper products.

    摘要翻译： 包含烷基烯酮二聚体和至少一种水溶性阳离子淀粉，硫酸铝和至少一种萘磺酸和甲醛或木质素磺酸的缩合物的至少15重量％的烷基乙烯酮二聚物分散体，或者在其每种情况下都是其盐 ，基于烷基烯酮二聚体，基于烷基烯酮二聚体的分散体含有2-50重量％的硫酸铝，其中分散体另外包含0.1-5重量％的具有1-10个碳原子的饱和羧酸 ，苯磺酸，对甲苯磺酸和/或无机酸，硫酸铝含量为2〜15重量％，分散体用作纸和纸制品的发动机尺寸和表面尺寸。