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    CELLULOSE ETHER COMPOSITIONS WITH IMPROVED WORKABILITY FOR USE IN GYPSUM SMOOTHING MORTAR AND JOINT FILLER APPLICATIONS
    2.
    发明申请
    CELLULOSE ETHER COMPOSITIONS WITH IMPROVED WORKABILITY FOR USE IN GYPSUM SMOOTHING MORTAR AND JOINT FILLER APPLICATIONS 审中-公开
    纤维素醚组合物具有改善的可用性，用于石膏光滑砂浆和接头填料应用

    公开(公告)号：WO2017091403A1

    公开(公告)日：2017-06-01

    申请号：PCT/US2016/062198

    申请日：2016-11-16

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： NEUBAUER, Joerg ,  WAGNER, Anette ,  MENZ, Sonja

    IPC: C04B28/14 ,  C04B40/00 ,  C04B20/10

    CPC classification number: C04B28/14 ,  C04B20/1033 ,  C04B40/0042 ,  C04B20/008 ,  C04B24/2641 ,  C04B24/2652 ,  C04B24/383 ,  C04B40/0608 ,  C04B2103/406 ,  C04B20/026 ,  C04B2103/44

    Abstract: The present invention provides additives for dry mix or tape joint compound compositions comprising one or more cellulose ether powders containing on its surface one or more hydrophobic alkali swellable emulsion polymer (HASE), preferably, one that is not crosslinked or which comprises, in copolymerized form, no multi-ethylenically unsaturated monomer, and, optionally, an inorganic basic filler. The present invention also provides methods to make the additive comprising kneading at from 50 to 120°C a wet cellulose ether mixture containing from 50 to 80 wt.% of water with from 0.5 to 25 wt.%, based on total cellulose ether solids, of the hydrophobic alkali swellable emulsion polymer; if desired, adding an inorganic basic filler, and drying and grinding. The additive can be combined with 0.1 to 20 wt.%, based on total cellulose ether solids, of a dry polyacrylamide.

    Abstract translation: 本发明提供用于干混合物或带接合化合物组合物的添加剂，其包含一种或多种纤维素醚粉末，所述纤维素醚粉末在其表面上含有一种或多种疏水性碱性可溶胀乳液聚合物（HASE），优选不含 交联的或者以共聚形式包含不含多烯属不饱和单体和任选的无机碱性填料。 本发明还提供了制备添加剂的方法，其包括在50-120℃下捏合含有50-80重量％的水和基于纤维素醚固体总量为0.5-25重量％的水的湿纤维素醚混合物， 的疏水性碱性可溶胀乳液聚合物; 如果需要，加入无机碱性填料，并干燥和研磨。 基于总纤维素醚固体，该添加剂可以与0.1至20重量％的干聚丙烯酰胺组合。

    A METHOD FOR REDUCING AGGLOMERATION IN GYPSUM PLASTER OR FILLING COMPOSITIONS COMPRISING CELLULOSE ETHER
    4.
    发明申请
    A METHOD FOR REDUCING AGGLOMERATION IN GYPSUM PLASTER OR FILLING COMPOSITIONS COMPRISING CELLULOSE ETHER 审中-公开
    用于减少包含纤维素醚的胶囊中的聚集或填充组合物的方法

    公开(公告)号：WO2013085897A2

    公开(公告)日：2013-06-13

    申请号：PCT/US2012/067752

    申请日：2012-12-04

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： NEUBAUER, Joerg ,  SCHARLEMANN, Sonja

    IPC: C04B24/38

    CPC classification number: C04B11/00 ,  C04B16/02 ,  C04B16/04 ,  C04B28/14 ,  C04B40/0039 ,  C04B2111/00198 ,  C04B24/14 ,  C04B24/383 ,  C04B40/0608

    Abstract: The present invention relates to a method for providing modified gypsum plaster or filling compositions having reduced agglomeration in comparison to gypsum plaster or filling compositions comprising cellulose ether in a specific amount from 0.1 to 1.0 weight percent, based on the total dry weight of said composition. Also provided are dry mortars comprising cellulose ether, gelatin and gypsum for use in such methods, and gypsum-free mixtures comprising cellulose ether and gelatin which may be added to gypsum binder for use in such methods.

    Abstract translation: 本发明涉及一种提供改性石膏膏或填充组合物的方法，其与基于所述组合物的总干重的0.1至1.0重量％的特定量的石膏膏或填充组合物相比具有减少的团聚。 还提供了包括用于这种方法的纤维素醚，明胶和石膏的干砂浆和包含纤维素醚和明胶的不含石膏的混合物，其可以加入石膏粘合剂中以用于这些方法。

    CEMENTITIOUS TILE ADHESIVE COMPOSITIONS CONTAINING CROSSLINKED CELLULOSE ETHERS FOR MORTARS WITH ENHANCED GEL-STRENGTH
    5.
    发明申请
    CEMENTITIOUS TILE ADHESIVE COMPOSITIONS CONTAINING CROSSLINKED CELLULOSE ETHERS FOR MORTARS WITH ENHANCED GEL-STRENGTH 审中-公开
    含有交联纤维素的纤维素组合物，具有增强凝胶强度的麦芽糖

    公开(公告)号：WO2017004119A1

    公开(公告)日：2017-01-05

    申请号：PCT/US2016/039956

    申请日：2016-06-29

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： HILD, Alexandra ,  NEUBAUER, Joerg ,  BRECKWOLDT, Joern

    IPC: C04B28/04 ,  C08B11/08 ,  C04B111/00

    CPC classification number: C04B28/04 ,  C04B14/06 ,  C04B24/386 ,  C04B40/0608 ,  C04B2111/00646 ,  C04B2111/00689 ,  C04B2201/00 ,  C08B11/08 ,  C08B15/005 ,  C04B14/28 ,  C04B24/383

    Abstract: The present invention provides cementitious tile adhesives comprising ordinary Portland cement, sand or another inorganic filler, and from 0.12 to 0.6 wt.% of total solids of one or more polyether group containing crosslinked cellulose ethers. The present invention also provides methods of making the polyether group containing crosslinked cellulose ethers comprising crosslinking a cellulose ether at 90 °C or less, in an inert atmosphere, e.g. nitrogen, in the presence of a polyether group containing crosslinking agent and in the presence of alkali; the process may comprise part of a stepwise addition process of making of a cellulose ether itself in which the crosslinking of the cellulose ethers precedes at least one addition of alkyl halide or alkylene oxide to form, respectively, alkyl or hydroxyalkyl groups on the cellulose.

    Abstract translation: 本发明提供了包含普通硅酸盐水泥，砂或其他无机填料的水泥瓦片粘合剂和含有交联纤维素醚的一种或多种聚醚基团的总固体的0.12至0.6重量％。 本发明还提供了制备含有交联纤维素醚的聚醚基团的方法，该方法包括在惰性气氛例如90℃或更低温度下使纤维素醚交联。 在含有聚醚基团的交联剂存在下，在碱的存在下， 该方法可以包括制备纤维素醚本身的逐步加成方法的一部分，其中纤维素醚的交联在至少一种烷基卤化物或烯化氧的加成之前分别在纤维素上形成烷基或羟烷基。

    DRY-MIX COMPOSITIONS COMPRISING GYPSUM AND CELLULOSE ETHER AGGLOMERATES
    6.
    发明申请
    DRY-MIX COMPOSITIONS COMPRISING GYPSUM AND CELLULOSE ETHER AGGLOMERATES 审中-公开
    包含甘油和纤维素的干混合物组合物

    公开(公告)号：WO2014043168A2

    公开(公告)日：2014-03-20

    申请号：PCT/US2013/059146

    申请日：2013-09-11

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： NEUBAUER, Joerg ,  ADDEN, Roland ,  BAUMANN, Robert

    IPC: B32B17/06

    CPC classification number: C04B18/022 ,  C04B28/14 ,  C04B2103/44 ,  C04B2103/46 ,  C04B20/008 ,  C04B24/383 ,  C04B40/0608

    Abstract: A dry-mix composition containing (a) gypsum powder, and (b) cellulose ether agglomerates, wherein the cellulose ether is methylcellulose, hydroxyethyl methylcellulose, hydroxypropyl methylcellulose, hydroxypropyl cellulose, hydroxyethyl cellulose or mixtures thereof; and a method for using cellulose ether agglomerates in a dry-mix composition to cause thickening and water retention with little clumping upon hydration of the dry-mix composition to a mortar, the method comprising including cellulose ether agglomerates in a dry-mix composition comprising gypsum powder.

    Abstract translation: 一种含有（a）石膏粉末和（b）纤维素醚附聚物的干混组合物，其中纤维素醚是甲基纤维素，羟乙基甲基纤维素，羟丙基甲基纤维素，羟丙基纤维素，羟乙基纤维素或其混合物; 以及在干混组合物中使用纤维素醚附聚物以在干混合组合物水合至研钵时几乎没有结块的情况下使用纤维素醚附聚物的方法，该方法包括将纤维素醚附聚物包含在包含石膏的干混组合物中 粉末。

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