Aqueous silica-containing composition
    1.
    发明申请
    Aqueous silica-containing composition 审中-公开
    含水二氧化硅的组合物

    公开(公告)号:US20050061462A1

    公开(公告)日:2005-03-24

    申请号:US10990219

    申请日:2004-11-16

    Abstract: The present invention relates to an aqueous silica-containing composition comprising an anionic organic polymer having at least one aromatic group and anionic silica-based particles. The aqueous silica-containing composition contains the anionic organic polymer having at least one aromatic group and the anionic silica-based particles in an amount of at least 0.01% by weight of the total weight of the aqueous silica-containing composition. The aqueous silica-containing composition contains substantially no cellulose-reactive sizing agent and the anionic organic polymer having at least one aromatic group is not an anionic naphthalene sulphonate formaldehyde condensate. The invention further relates to methods for the preparation of the aqueous silica-containing composition and the use of the aqueous silica-composition as a drainage and retention aid in a process for the production of paper. The invention also relates to a process for the production of paper from an aqueous suspension containing cellulosic fibres, and optionally filler, in which the aqueous silica-containing composition and at least one charged organic polymer are added to the cellulosic suspension.

    Abstract translation: 本发明涉及包含具有至少一个芳族基团的阴离子有机聚合物和阴离子二氧化硅基颗粒的含水二氧化硅的组合物。 含水二氧化硅的组合物含有至少一种芳族基团的阴离子有机聚合物和阴离子二氧化硅基颗粒,其量为含二氧化硅含水组合物总重量的至少0.01重量%。 含水二氧化硅的组合物基本上不含纤维素反应性施胶剂,并且具有至少一个芳族基团的阴离子有机聚合物不是阴离子萘磺酸盐甲醛缩合物。 本发明还涉及制备含水二氧化硅的组合物的方法以及二氧化硅水溶液作为生产纸的方法中的排水和助留剂的用途。 本发明还涉及从含有纤维素纤维和任选填料的含水悬浮液生产纸的方法,其中将含水二氧化硅的组合物和至少一种带电有机聚合物加入到纤维素悬浮液中。

    Papermaking process using a specified NSF to silica-based particle ratio
    2.
    发明授权
    Papermaking process using a specified NSF to silica-based particle ratio 有权
    造纸工艺使用指定的NSF对二氧化硅基颗粒的比例

    公开(公告)号:US07156955B2

    公开(公告)日:2007-01-02

    申请号:US10326316

    申请日:2002-12-20

    CPC classification number: D21H17/74 D21H17/47 D21H17/68 D21H21/10 D21H23/765

    Abstract: The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition comprising an anionic naphthalene sulphonate formaldehyde condensate and anionic silica-based particles, the composition having a weight ratio of naphthalene sulphonate formaldehyde condensate to silica-based particles within the range of from 0.2:1 to 99:1, and containing naphthalene sulphonate formaldehyde condensate and silica-based particles in an amount of at least 0.01% by weight, based on the total weight of the aqueous silica-containing composition, and with the proviso that the composition contains substantially no cellulose-reactive sizing agent. The invention also encompasses an aqueous silica-containing composition and a method for preparation of an aqueous silica-containing compound.

    Abstract translation: 本发明涉及一种由含有纤维素纤维和任选的填料的悬浮液生产纸的方法,包括向悬浮液中加入至少一种阳离子有机聚合物和含二氧化硅的含水组合物,其中包含阴离子萘磺酸甲醛缩合物和阴离子 二氧化硅基颗粒,该组合物具有萘磺酸甲醛缩合物与二氧化硅基颗粒的重量比在0.2:1至99:1的范围内,并且含有萘磺酸甲醛缩合物和二氧化硅基颗粒的量为 至少0.01重量%,基于含水二氧化硅的组合物的总重量,条件是该组合物基本上不含纤维素反应性上浆剂。 本发明还包括含水二氧化硅的组合物和含水二氧化硅的化合物的制备方法。

    Aqueous silica-containing composition
    3.
    发明授权
    Aqueous silica-containing composition 有权
    含水二氧化硅的组合物

    公开(公告)号:US07608644B2

    公开(公告)日:2009-10-27

    申请号:US11129251

    申请日:2005-05-13

    CPC classification number: D21H17/74 D21H17/47 D21H17/68 D21H21/10 D21H23/765

    Abstract: The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition comprising an anionic naphthalene sulphonate formaldehyde condensate and anionic silica-based particles, the composition having a weight ratio of naphthalene sulphonate formaldehyde condensate to silica-based particles within the range of from 0.2:1 to 99:1, and containing naphthalene sulphonate formaldehyde condensate and silica-based particles in an amount of at least 0.01% by weight, based on the total weight of the aqueous silica-containing composition, and with the proviso that the composition contains substantially no cellulose-reactive sizing agent. The invention also encompasses an aqueous silica-containing composition and a method for preparation of an aqueous silica-containing compound.

    Abstract translation: 本发明涉及一种由含有纤维素纤维和任选的填料的悬浮液生产纸的方法,包括向悬浮液中加入至少一种阳离子有机聚合物和含二氧化硅的含水组合物,其中包含阴离子萘磺酸甲醛缩合物和阴离子 二氧化硅基颗粒,该组合物具有萘磺酸甲醛缩合物与二氧化硅基颗粒的重量比在0.2:1至99:1的范围内,并且含有萘磺酸甲醛缩合物和二氧化硅基颗粒的量为 至少0.01重量%,基于含水二氧化硅的组合物的总重量,条件是该组合物基本上不含纤维素反应性上浆剂。 本发明还包括含水二氧化硅的组合物和含水二氧化硅的化合物的制备方法。

    Aqueous silica-containing composition
    4.
    发明申请
    Aqueous silica-containing composition 有权
    含水二氧化硅的组合物

    公开(公告)号:US20050209389A1

    公开(公告)日:2005-09-22

    申请号:US11129251

    申请日:2005-05-13

    CPC classification number: D21H17/74 D21H17/47 D21H17/68 D21H21/10 D21H23/765

    Abstract: The present invention refers to a process for the production of paper from a suspension containing cellulosic fibres, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition comprising an anionic naphthalene sulphonate formaldehyde condensate and anionic silica-based particles, the composition having a weight ratio of naphthalene sulphonate formaldehyde condensate to silica-based particles within the range of from 0.2:1 to 99:1, and containing naphthalene sulphonate formaldehyde condensate and silica-based particles in an amount of at least 0.01% by weight, based on the total weight of the aqueous silica-containing composition, and with the proviso that the composition contains substantially no cellulose-reactive sizing agent. The invention also encompasses an aqueous silica-containing composition and a method for preparation of an aqueous silica-containing compound.

    Abstract translation: 本发明涉及一种由含有纤维素纤维和任选的填料的悬浮液生产纸的方法,包括向悬浮液中加入至少一种阳离子有机聚合物和含二氧化硅的含水组合物,其中包含阴离子萘磺酸甲醛缩合物和阴离子 二氧化硅基颗粒,该组合物具有萘磺酸甲醛缩合物与二氧化硅基颗粒的重量比在0.2:1至99:1的范围内,并且含有萘磺酸甲醛缩合物和二氧化硅基颗粒的量为 至少0.01重量%,基于含水二氧化硅的组合物的总重量,条件是该组合物基本上不含纤维素反应性上浆剂。 本发明还包括含水二氧化硅的组合物和含水二氧化硅的化合物的制备方法。

    Process for production of paper
    5.
    发明申请
    Process for production of paper 有权
    纸张生产流程

    公开(公告)号:US20050236126A1

    公开(公告)日:2005-10-27

    申请号:US11149879

    申请日:2005-06-10

    CPC classification number: D21H17/17 D21H17/24 D21H21/16

    Abstract: The invention related to process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional fillers, which comprises adding to the suspension (i) a cationic vinyl addition polymer prepared by polymerizing one or more ethylenically unsaturated monomers comprising a cationic monomer; (ii) an anionic polymer having one or more aromatic groups selected from the group consisting of polymers obtained by condensation of formaldehyde with benzene-based and naphthalene-based compounds, polyurethanes, polysaccharides, and lignin-based polymers; wherein (i) and (ii) are separately added to the suspension; and (iii) a low molecular weight cationic organic polymer having a molecular weight in the range of from 2,000 to about 700,000; or an anionic microparticulate material; and forming and draining the obtained suspension on a wire.

    Abstract translation: 本发明涉及从含有纤维素纤维的水悬浮液和任选的填料生产纸的方法,其包括向悬浮液中加入(i)通过聚合一种或多种包含阳离子单体的烯属不饱和单体制备的阳离子乙烯基加成聚合物; (ii)具有一个或多个芳族基团的阴离子聚合物,所述芳族基团选自甲醛与苯基和萘基化合物缩合得到的聚合物,聚氨酯,多糖和木质素基聚合物; 其中(i)和(ii)分别加入悬浮液中; 和(iii)分子量在2,000至约700,000范围内的低分子量阳离子有机聚合物; 或阴离子微粒材料; 并将得到的悬浮液在线上形成和排出。

    Process for the production of a cellulosic product
    6.
    发明授权
    Process for the production of a cellulosic product 失效
    生产纤维素产品的方法

    公开(公告)号:US08118976B2

    公开(公告)日:2012-02-21

    申请号:US12600139

    申请日:2008-04-28

    Abstract: The present invention concerns a process for the production of a cellulosic product comprising providing a fiber-containing suspension, wherein at least about 60% by weight of the fibers are cellulosic fibers, and dewatering the suspension on a wire to form a cellulosic fiber web, the process further comprising adding silica-based particles to the formed web and a wet strength agent to the suspension and/or to the formed web. The invention also concerns a product obtainable by the process. The invention further concerns a dispersion comprising silica-based particles and a substantially aldehyde-free wet strength agent. A further aspect of the invention concerns a dispersion comprising silica-based particles having a specific surface area ranging from about 1000 to about 1700 m2/g and a wet strength agent. Still another aspect of the invention concerns the use of the dispersion as an additive in a papermaking process.

    Abstract translation: 本发明涉及一种生产纤维素产品的方法,包括提供含纤维悬浮液,其中至少约60重量%的纤维是纤维素纤维,并将悬浮液脱水以形成纤维素纤维网, 该方法还包括将二氧化硅基颗粒加入到所形成的纤维网中,并将湿强度剂加入到悬浮液和/或形成的纤维网中。 本发明还涉及通过该方法可获得的产品。 本发明还涉及包含二氧化硅基颗粒和基本上无醛的湿强度剂的分散体。 本发明的另一方面涉及包含比表面积为约1000至约1700m 2 / g的二氧化硅基颗粒和湿强度剂的分散体。 本发明的另一方面涉及在造纸方法中使用该分散体作为添加剂。

    Sizing of paper
    7.
    发明授权
    Sizing of paper 有权
    纸张尺寸

    公开(公告)号:US07892398B2

    公开(公告)日:2011-02-22

    申请号:US11638108

    申请日:2006-12-13

    CPC classification number: D21H21/16 D21H17/07 D21H17/16 D21H17/68 D21H23/04

    Abstract: The invention relates to an aqueous dispersion of cellulose-reactive sizing agent containing an acid anhydride, an anionic polyelectrolyte and a nitrogen-containing organic compound which is an amine or quaternary ammonium thereof having a molecular weight less than 180 and/or having one or more hydroxyl groups. The invention further relates to a process for the production of paper which comprises adding the aqueous dispersion of cellulose-reactive sizing agent to an aqueous cellulosic suspension.

    Abstract translation: 本发明涉及含有酸酐,阴离子聚电解质和含氮有机化合物的纤维素反应性施胶剂的水性分散体,其是分子量小于180的胺或季铵盐和/或具有一种或多种 羟基。 本发明还涉及一种用于生产纸的方法,该方法包括将纤维素反应性施胶剂的水分散体加入纤维素悬浮液中。

    Silica-based sols
    9.
    发明授权
    Silica-based sols 有权
    二氧化硅溶胶

    公开(公告)号:US07919535B2

    公开(公告)日:2011-04-05

    申请号:US10999867

    申请日:2005-01-08

    Abstract: The invention relates to an aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface area of at least 550 m2/g and less than 1000 m2/g SiO2. The invention further relates to processes for the production of said aqueous sol and the use of the aqueous sol containing silica-based particles as a drainage and retention aid in the production of paper as well as a process for the production of paper from an aqueous suspension containing cellulosic fibres, and optional filler, in which silica-based particles and at least one charged organic polymer are added to the cellulosic suspension.

    Abstract translation: 本发明涉及含有二氧化硅基颗粒的水性溶胶,其溶胶的比表面积为至少115m 2 / g水溶胶,S值在10至45%范围内,或含有二氧化硅基颗粒,其具有 比表面积至少为550m2 / g且小于1000m2 / gSiO 2。 本发明还涉及生产所述水性溶胶的方法以及含有二氧化硅基颗粒的水性溶胶作为纸的生产中的排水和助留剂以及由水悬浮液生产纸的方法的用途 含有纤维素纤维和任选的填料,其中将二氧化硅基颗粒和至少一种带电有机聚合物加入到纤维素悬浮液中。

    Sizing of paper
    10.
    发明申请
    Sizing of paper 有权
    纸张尺寸

    公开(公告)号:US20070137523A1

    公开(公告)日:2007-06-21

    申请号:US11638108

    申请日:2006-12-13

    CPC classification number: D21H21/16 D21H17/07 D21H17/16 D21H17/68 D21H23/04

    Abstract: The invention relates to an aqueous dispersion of cellulose-reactive sizing agent containing an acid anhydride, an anionic polyelectrolyte and a nitrogen-containing organic compound which is an amine or quaternary ammonium thereof having a molecular weight less than 180 and/or having one or more hydroxyl groups. The invention further relates to a process for the production of paper which comprises adding the aqueous dispersion of cellulose-reactive sizing agent to an aqueous cellulosic suspension.

    Abstract translation: 本发明涉及含有酸酐,阴离子聚电解质和含氮有机化合物的纤维素反应性施胶剂的水性分散体,其是分子量小于180的胺或季铵盐和/或具有一种或多种 羟基。 本发明还涉及一种用于生产纸的方法,该方法包括将纤维素反应性施胶剂的水分散体加入纤维素悬浮液中。

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