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    Polymer and its preparation and use
    3.
    发明授权
    Polymer and its preparation and use 有权

    公开(公告)号：US09869060B2

    公开(公告)日：2018-01-16

    申请号：US14646026

    申请日：2013-11-20

    申请人： KEMIRA OYJ

    发明人： Ulf Jonas Anders Engstrom ,  Per Anders Restorp

    IPC分类号： D21H17/37 ,  C08F220/56 ,  C08F220/58 ,  D21H21/18 ,  D21H17/34

    CPC分类号： D21H17/37 ,  C08F220/56 ,  C08F220/58 ,  D21H17/34 ,  D21H17/375 ,  D21H21/18

    摘要： The present invention relates to a water-soluble cationic acrylamide-based polymer having one or more acetoacetate groups. The invention also relates to a method for producing the water-soluble polymer which comprises polymerizing ethylenically unsaturated monomers in an aqueous phase, wherein the monomers comprise (a) (meth)acrylamide, (b) ethylenically unsaturated cationic monomer, (c) ethylenically unsaturated monomer having one or more acetoacetate groups, and (d) optionally other ethylenically unsaturated monomer. The invention further relates to the use of the water-soluble polymer as a strength agent in the production of paper and board. The invention further relates to a process for producing paper and board which comprises providing an aqueous cellulosic suspension, adding to the suspension water-soluble polymer having one or more ketone groups, and dewatering the obtained suspension. The invention further relates to paper and board comprising the water-soluble polymer of the invention, as well as paper and board produced by the process of the invention.

    FINELY DIVIDED, STARCH-CONTAINING POLYMER DISPERSIONS, PROCESSES FOR THEIR PREPARATION AND USE AS SIZES IN PAPERMAKING
    6.
    发明申请
    FINELY DIVIDED, STARCH-CONTAINING POLYMER DISPERSIONS, PROCESSES FOR THEIR PREPARATION AND USE AS SIZES IN PAPERMAKING 审中-公开
    精细分散，含淀粉的聚合物分散体，其制备方法和用于造纸中的尺寸

    公开(公告)号：US20160083909A1

    公开(公告)日：2016-03-24

    申请号：US14959118

    申请日：2015-12-04

    申请人： BASF SE

    发明人： Carmen-Elena Cimpeanu ,  Holger Kern ,  Petra Arnold ,  Christoph Hamers

    IPC分类号： D21H21/16 ,  D21H19/20

    CPC分类号： D21H21/16 ,  C08F2/24 ,  C08F2/26 ,  C08F212/08 ,  C08F220/18 ,  C08F251/00 ,  D21H17/28 ,  D21H17/34 ,  D21H19/20 ,  C08F2220/1825 ,  C08F236/20 ,  C08F2/44

    摘要： A finely divided, starch-containing polymer dispersion which is obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, wherein (a) from 0 to less than 40% by weight of at least one optionally substituted styrene, (b) from greater than 60 to 100% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, are used as the ethylenically unsaturated monomers, the sum (a)−(b)+(c) being 100% and being based on the active monomer content and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mw of from 1000 to 65 000 g/mol, based on the total weight of solids content of components (a)+(b)+(c)+(d), are used as the starch, and the polymerization being carried out in the presence of at least 0.01% by weight, based on the monomers used, of at least one terpene containing chain-transfer agent, and in which the polymer dispersion optionally comprises an aluminium compound. The use of the finely divided, starch-containing polymer dispersions as sizes for paper, board and cardboard is also claimed.

    摘要翻译： 一种细分散的含淀粉的聚合物分散体，其可通过烯属不饱和单体在至少一种氧化还原引发剂和淀粉的存在下的自由基乳液聚合而获得，其中（a）0至小于40重量％的至少一种 任选取代的苯乙烯，（b）大于60至100重量％的至少一种丙烯酸C1-C12烷基酯和/或甲基丙烯酸C1-C12-烷基酯，（c）0至10重量％的至少一种 其他烯键式不饱和可共聚单体用作烯键式不饱和单体，总和（a） - （b）+（c）为100％，基于活性单体含量，（d）15至40重量％ 使用基于组分（a）+（b）+（c）+（d）的固体含量的总重量，摩尔质量Mw为1000至65000g / mol的至少一种降解淀粉用作 淀粉，并且所述聚合在至少基于所用单体的至少0.01重量％的存在下进行 一种含萜烯的链转移剂，其中聚合物分散体任选地包含铝化合物。 还要求使用细碎的含淀粉聚合物分散体作为纸，纸板和纸板的尺寸。

    Aldehyde-functionalized polymers with enhanced stability
    9.
    发明授权
    Aldehyde-functionalized polymers with enhanced stability 有权
    具有增强稳定性的醛官能化聚合物

    公开(公告)号：US08753480B2

    公开(公告)日：2014-06-17

    申请号：US13650686

    申请日：2012-10-12

    申请人： Nalco Company

    发明人： Heinrich E. Bode ,  Michael R. St. John ,  Mei Liu ,  Robert M. Lowe

    IPC分类号： D21H21/10 ,  D21H21/20 ,  D21H23/02 ,  D21H17/49 ,  C08G69/50

    CPC分类号： D21H21/18 ,  C08L33/26 ,  C08L97/00 ,  D21H17/34 ,  D21H17/375 ,  D21H17/47 ,  D21H17/66 ,  D21H19/56

    摘要： The current invention includes a composition having stability additives of selected inorganic salts and/or organic incorporated into an aldehyde-functionalized polymer product. The stability additive can be post added to the finished polymer product, added to the reaction vessel prior to inducing functionalization of the non-functionalized polymer, or added at any stage during the functionalization reaction. Methods for forming the composition and using the composition to produce a cellulosic fiber-based medium are also disclosed.

    摘要翻译： 本发明包括具有选定的无机盐和/或有机掺入到醛官能化聚合物产品中的稳定添加剂的组合物。 稳定性添加剂可以在添加到成品聚合物产物中后，在引入非官能化聚合物的官能化之前添加到反应容器中，或者在官能化反应期间的任何阶段加入。 还公开了形成组合物和使用该组合物生产纤维素纤维基培养基的方法。

    Finely divided starch-containing polymer dispersions, method for the production thereof and use thereof as sizing agent in paper manufacturing
    10.
    发明授权
    Finely divided starch-containing polymer dispersions, method for the production thereof and use thereof as sizing agent in paper manufacturing 有权
    精细分散的含淀粉聚合物分散体，其制造方法和用作造纸剂中的上浆剂

    公开(公告)号：US08685207B2

    公开(公告)日：2014-04-01

    申请号：US13498734

    申请日：2010-09-28

    申请人： Anja Song ,  Holger Kern ,  Petra Arnold

    发明人： Anja Song ,  Holger Kern ,  Petra Arnold

    IPC分类号： D21H17/28 ,  D21H19/54 ,  D21H17/37 ,  D21H19/20 ,  D21H19/56 ,  D21H17/35 ,  C08F212/08 ,  C08F2/22 ,  C08F251/00

    CPC分类号： C08F2/24 ,  C08F220/16 ,  D21H17/34 ,  D21H21/16 ,  C08F212/08 ,  C08F2220/1825 ,  C08F220/06 ,  C08F2220/1858

    摘要： Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, (a) from 30 to 60% by weight of at least one optionally substituted styrene, (b) from 1 to 60% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, being used as ethylenically unsaturated monomers and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mw of from 1000 to 65 000 g/mol being used as the starch, the sum (a)+(b)+(c)+(d) being 100% and being based on the total solids content, and the polymerization being carried out in the presence of at least 0.01% by weight, based on the monomers used, of at least one terpene-containing chain-transfer agent, processes for the preparation of the finely divided, starch-containing polymer dispersions by emulsion polymerization of the monomers (a), (b) and (c) with redox initiators in the presence of (d) degraded starch and at least 0.01% by weight, based on the monomers used, of at least one terpene-containing chain-transfer agent, and use of the finely divided, starch-containing polymer dispersions as sizes for paper, board and cardboard.

    摘要翻译： 在至少一种氧化还原引发剂和淀粉的存在下，通过烯键式不饱和单体的自由基乳液聚合可获得的细分散的含淀粉聚合物分散体，（a）30至60重量％的至少一种任选取代的苯乙烯， （b）1至60重量％的至少一种丙烯酸C1-C12烷基酯和/或甲基丙烯酸C1-C12烷基酯，（c）0至10重量％的至少一种其它烯属不饱和可共聚单体， 用作烯键式不饱和单体和（d）15-40％重量的至少一种使用摩尔质量分数为1000至65000g / mol的降解淀粉作淀粉，总和（a）+ （b）+（c）+（d）为100％，基于总固体含量，并且基于所使用的单体至少为0.01重量％存在下进行聚合的至少一种 含萜烯的链转移剂，制备细碎淀粉的转化剂的方法 通过在（d）降解淀粉存在下，使用氧化还原引发剂将单体（a），（b）和（c）乳化聚合并基于所使用的单体至少为0.01重量％ 含萜烯的链转移剂，以及使用细碎的含淀粉聚合物分散体作为纸，纸板和纸板的尺寸。