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115 条记录 (耗时 0.033 秒)

    Semi continuous operational method for producing copolymers
    23.
    发明授权
    Semi continuous operational method for producing copolymers 有权
    用于生产共聚物的半连续操作方法

    公开(公告)号：US08541518B2

    公开(公告)日：2013-09-24

    申请号：US12920143

    申请日：2009-02-10

    申请人： Gerhard Albrecht ,  Klaus Lorenz ,  Christian Scholz ,  Petra Wagner

    发明人： Gerhard Albrecht ,  Klaus Lorenz ,  Christian Scholz ,  Petra Wagner

    IPC分类号： C08F2/04 ,  C08F224/00 ,  C08F2/10 ,  C04B28/28

    CPC分类号： C08F220/04 ,  C08F220/26

    摘要： A process for the preparation of a copolymer in a semicontinuous mode of operation in a polymerization apparatus containing a polymerization reactor connected to a metering device, in each case acid monomer being initially introduced into the metering device and polyether macromonomer and water into the polymerization reactor, acid monomer being metered from the metering device into the polymerization reactor, the metering of the acid monomer into the polymerization reactor being effected in such a way that first a polymerization pH is established in the aqueous medium and then, until the conversion of 70 mol % of the polyether macromonomer initially introduced into the polymerization reactor, acid monomer is passed into the polymerization reactor in an amount per unit time such that the pH in the aqueous medium deviates by not more than ±0.3 from the initially established polymerization pH.

    摘要翻译： 在含有连接到计量装置的聚合反应器的聚合装置中制备半连续操作模式的共聚物的方法，每种情况下，酸性单体最初引入计量装置和聚醚大分子单体和水进入聚合反应器， 酸性单体从计量装置计量到聚合反应器中，酸性单体计量到聚合反应器中的方式是首先在水性介质中建立聚合pH，然后直到70mol％ 的最初引入聚合反应器的聚醚大分子单体，酸单体以每单位时间的量进入聚合反应器，使得水介质中的pH从最初建立的聚合pH偏离不大于±0.3。

    Method for producing polyols
    25.
    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
    27.
    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
    28.
    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
    30.
    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。