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    Process for the preparation of polyacetal copolymers
    2.
    发明授权
    Process for the preparation of polyacetal copolymers 有权
    制备聚缩醛共聚物的方法

    公开(公告)号：US5962623A

    公开(公告)日：1999-10-05

    申请号：US149581

    申请日：1998-09-08

    申请人： Peter Eckardt ,  Michael Hoffmockel ,  Karl-Friedrich Muck ,  Gerhard Reuschel ,  Satyajit Verma ,  Michael G. Yearwood

    发明人： Peter Eckardt ,  Michael Hoffmockel ,  Karl-Friedrich Muck ,  Gerhard Reuschel ,  Satyajit Verma ,  Michael G. Yearwood

    IPC分类号： C08G2/18 ,  C08G2/00 ,  C08G2/06 ,  C08G2/28 ,  C08G4/00

    CPC分类号： C08G4/00 ,  C08G2/00 ,  C08G2/06

    摘要： A continuous process for the preparation of polyacetal copolymers from 1,3,5-trioxane and the comonomers known for this purpose using strong protic acids as an initiator, in which the initiator is added in an amount of 0.01 to 0.6 ppm, based on the total amount of monomers, in finely divided form to the monomer mixture, after the polymerization step the crude polymer is transferred from the polymerization reactor to a mixing unit without further intermediate steps, excess monomer is removed from the crude polymer in the mixing unit or between polymerization reactor and mixing unit by applying reduced pressure and, if desired, generally customary stabilizers, assistants, fillers, reinforcing materials and/or colorants are incorporated into the polymer in the mixing unit.

    摘要翻译： 以1,3,5-三恶烷和为此目的已知的共聚单体使用强质子酸作为引发剂制备聚缩醛共聚物的连续方法，其中引发剂的添加量为0.01至0.6ppm，基于 在聚合步骤之后，粗聚合物从聚合反应器转移到混合单元而没有进一步的中间步骤，在混合单元中从粗聚合物中除去过量的单体，或在混合单元之间 聚合反应器和混合单元，并且如果需要，通常将常规稳定剂，助剂，填料，增强材料和/或着色剂并入混合单元中的聚合物中。

    Polyoxymethylene copolymers, their preparation and use
    3.
    发明授权
    Polyoxymethylene copolymers, their preparation and use 失效
    聚甲醛共聚物，其制备和用途

    公开(公告)号：US07001959B2

    公开(公告)日：2006-02-21

    申请号：US10700195

    申请日：2003-11-03

    申请人： Karl-Friedrich Mück ,  Klaus Kurz ,  Michael Hoffmockel

    发明人： Karl-Friedrich Mück ,  Klaus Kurz ,  Michael Hoffmockel

    IPC分类号： C08G65/00

    CPC分类号： C08G2/38

    摘要： Copolymers are described containing blocks of the structural repeat units of the formula I and blocks containing structural units of the formula II [—O—CH2—]x,  (I) [—O—R1—],  (II) where R1 is a divalent radical derived from a hydroxy-terminated aliphatic or cycloaliphatic oligomer or polymer which, where appropriate, has ether groups and/or carbonyloxy groups in the chain, and x is a whole number, at least 10. The copolymers may be used for producing moldings.

    摘要翻译： 描述了包含式I的结构重复单元的嵌段和含有结构单元的嵌段的共聚物

    Process for preparation of polymer blends composed of polyoxymethylenes and of thermoplastic elastomers
    4.
    发明授权
    Process for preparation of polymer blends composed of polyoxymethylenes and of thermoplastic elastomers 失效
    由聚甲醛和热塑性弹性体组成的聚合物共混物的制备方法

    公开(公告)号：US07906594B2

    公开(公告)日：2011-03-15

    申请号：US11520415

    申请日：2006-09-13

    申请人： Karl-Friedrich Mück ,  Ernst Hofmann ,  Michael Hoffmockel

    发明人： Karl-Friedrich Mück ,  Ernst Hofmann ,  Michael Hoffmockel

    IPC分类号： C08L61/02

    CPC分类号： C08L59/00 ,  C08L75/04 ,  Y10T428/31942 ,  C08L2666/20

    摘要： The invention relates to a process for preparation of polymer blends comprising at least one polyoxymethylene and at least one thermoplastic elastomer, where the thermoplastic elastomer is micropelletized by a pelletizing process and the pellets obtained in a) are dispersed in the polyoxymethylene matrix via melting of the components and mixing of these at low shear forces, and also to the use of micropelletized thermoplastic elastomers for preparation of polyoxymethylenes with low formaldehyde emission.

    摘要翻译： 本发明涉及一种制备包含至少一种聚甲醛和至少一种热塑性弹性体的聚合物共混物的方法，其中热塑性弹性体通过造粒工艺进行微胶体化，并且将a）中获得的颗粒分散在聚甲醛基体中， 组分和这些在低剪切力下的混合，以及使用微胶体化热塑性弹性体制备低甲醛释放的聚甲醛。

    POLYOXYMETHYLENE COPOLYMERS, THEIR PREPARATION AND USE
    5.
    发明申请
    POLYOXYMETHYLENE COPOLYMERS, THEIR PREPARATION AND USE 审中-公开
    聚甲基乙烯共聚物，其制备和使用

    公开(公告)号：US20080182966A1

    公开(公告)日：2008-07-31

    申请号：US12058197

    申请日：2008-03-28

    申请人： Karl-Friedrich Mück ,  Klaus Kurz ,  Michael Hoffmockel

    发明人： Karl-Friedrich Mück ,  Klaus Kurz ,  Michael Hoffmockel

    IPC分类号： C08G65/34

    CPC分类号： C08G2/38

    摘要： Copolymers are described containing blocks of the structural repeat units of the formula I and blocks containing structural units of the formula II [—O—CH2—]x,   (I) [—O—R1—],   (II) where R1 is a divalent radical derived from a hydroxy-terminated aliphatic or cycloaliphatic oligomer or polymer which, where appropriate, has ether groups and/or carbonyloxy groups in the chain, and x is a whole number, at least 10.The copolymers may be used for producing moldings.

    摘要翻译： 描述共聚物，其包含式I的结构重复单元的嵌段和含有式II的结构单元的嵌段<？in-line-formula description =“In-line Formulas”end =“lead”→[ - O-CH （I）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula- 公式描述=“在线公式”end =“lead”？> [ - OR 1 - ]，（II）<？in-line-formula description =“In-line Formulas”end = 其中R 1是衍生自羟基封端的脂族或脂环族低聚物或聚合物的二价基团，其在适当的情况下在链中具有醚基和/或羰氧基，x 是整数，至少为10.共聚物可用于生产模制品。

    Processes for the manufacture of acetals
    7.
    发明授权
    Processes for the manufacture of acetals 有权
    制造缩醛的方法

    公开(公告)号：US07534922B2

    公开(公告)日：2009-05-19

    申请号：US11302290

    申请日：2005-12-13

    申请人： Matthias Göring ,  Michael Hoffmockel ,  Jürgen Lingnau ,  Karl-Friedrich Mück

    发明人： Matthias Göring ,  Michael Hoffmockel ,  Jürgen Lingnau ,  Karl-Friedrich Mück

    IPC分类号： C07C41/56 ,  B01J8/02

    CPC分类号： C07C41/56 ,  C07C41/58 ,  Y02P20/127 ,  C07C43/303

    摘要： A process for preparing acetals from aldehydes and alcohols is carried out by generating a reaction/distillation zone charged with an acidic fixed bed catalyst in a distillation column, feeding the aldehyde and the alcohol to the reaction/distillatlon zone and at least partly converting them to the acetal, heating the column bottom disposed below the reaction/distillation zone in order to at least partly evaporate the bottom's mixture and to establish a defined temperature in the reaction/distillation zone, feeding an extractant into a rectifying section of the column, disposed above the reaction/distillation zone and condensing a product having more than 90% by weight of acetal at the top of the column.

    摘要翻译： 通过在蒸馏塔中生成装有酸性固定床催化剂的反应/蒸馏区，将醛和醇进料至反应/蒸馏区，并将其至少部分转化为 缩醛，加热设置在反应/蒸馏区下方的塔底，以便至少部分地蒸发底部的混合物并在反应/蒸馏区中建立限定的温度，将萃取剂进料到柱的精馏段中，其设置在 反应/蒸馏区，并将在塔顶部具有超过90重量％缩醛的产物冷凝。

    Oxymethylene copolymers and the use thereof and process for the preparation of oxymethylene copolymers
    9.
    发明授权
    Oxymethylene copolymers and the use thereof and process for the preparation of oxymethylene copolymers 失效
    甲醛共聚物及其用途和制备甲醛共聚物的方法

    公开(公告)号：US08133966B2

    公开(公告)日：2012-03-13

    申请号：US12423625

    申请日：2009-04-14

    申请人： Michael Haubs ,  Michael Hoffmockel ,  Jürgen Lingnau ,  Robert Gronner ,  Michael Gene Yearwood

    发明人： Michael Haubs ,  Michael Hoffmockel ,  Jürgen Lingnau ,  Robert Gronner ,  Michael Gene Yearwood

    IPC分类号： C08G12/00

    CPC分类号： C08G2/24 ,  C08G2/04 ,  C08G2/34

    摘要： Oxymethylene copolymers having a high proportion of terminal alkyl ether groups and having terminal hydroxyalkylene groups are described. These polymers are distinguished by high thermal stability and high hot water resistance. Furthermore, a process for the preparation of oxymethylene copolymers is described in which the polymerization of at least one monomer forming —CH2—O— units is effected in the presence of at least one acetal of formaldehyde and of at least one initiator of cationic polymerization and the initiator of cationic polymerization is used in an amount of less than or equal to 10−4 mol %, based on the amount of the monomers present at the beginning of the polymerization and forming —CH2—O— units, in which starting materials of the polymerization are used such that the content of water and formic acid at the beginning of the polymerization is less than or equal to 40 ppm, and in which the initiator and/or the active polymer chains are deactivated by treatment of the prepared polymer with a base-containing protic solvent.

    摘要翻译： 描述了具有高比例的末端烷基醚基团并具有末端羟基亚烷基的甲醛共聚物。 这些聚合物的特征在于高热稳定性和高耐热水性。 此外，描述了制备甲醛共聚物的方法，其中形成-CH 2 -O-单元的至少一种单体的聚合在至少一种甲醛缩醛和至少一种阳离子聚合引发剂的存在下进行，并且 基于聚合开始时存在的单体的量和形成-CH 2 -O-单元，阳离子聚合引发剂的用量小于或等于10-4mol％，其中起始原料为 使用聚合，使得聚合开始时的水和甲酸的含量小于或等于40ppm，并且其中引发剂和/或活性聚合物链通过用制备的聚合物处理而失活 含碱性质子溶剂。