Process for the production of paper
    11.
    发明授权
    Process for the production of paper 有权
    生产纸张的过程

    公开(公告)号:US08613832B2

    公开(公告)日:2013-12-24

    申请号:US13397293

    申请日:2012-02-15

    Abstract: The present invention relates to a drainage and retention aid composition which comprises: (d) a first anionic component which is a water-soluble anionic organic polymer; (e) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (f) a third anionic component which is an anionic siliceous material; wherein the first, second and third anionic components are present in a dry matter content of from 0.01 to 50% by weight.

    Abstract translation: 本发明涉及排水和助留剂组合物,其包括:(d)第一阴离子组分,其为水溶性阴离子有机聚合物; (e)第二阴离子组分,其为水分散性或支链阴离子有机聚合物; 和(f)第三阴离子组分,其为阴离子硅质材料; 其中所述第一,第二和第三阴离子组分以干物质含量为0.01至50重量%存在。

    Silica-based sols and their production and use
    12.
    发明授权
    Silica-based sols and their production and use 有权
    二氧化硅溶胶及其生产和使用

    公开(公告)号:US07851513B2

    公开(公告)日:2010-12-14

    申请号:US12622985

    申请日:2009-11-20

    CPC classification number: C01B33/1435 D21H17/68 D21H21/10 Y10S516/928

    Abstract: A process for producing aqueous silica-based sols, having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, are disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminium compound; and separating the resin from the slurry. Further, the use of such silica-based sols in producing paper is disclosed.

    Abstract translation: 一种水溶性二氧化硅基溶胶的制造方法,S值为15〜25%,Si:Al摩尔比为20:1〜50:1,Si:X,其中X =碱金属的摩尔比为5:1 至17:1,SiO 2含量为至少5重量%,并且含有比表面积至少为300m 2 / g的二氧化硅基颗粒,其中具有在氢气中具有部分离子交换容量的阳离子离子交换树脂 形式与碱金属硅酸盐水溶液接触以形成pH为5.0-11.5和/或具有对应于高达45%的S值的颗粒聚集或微凝胶形成的浆料; 使用包含铝化合物的材料调节pH; 并从浆料中分离树脂。 此外,公开了在制造纸中使用这种二氧化硅基溶胶。

    Silica-based sols and their production and use
    13.
    发明授权
    Silica-based sols and their production and use 有权
    二氧化硅溶胶及其生产和使用

    公开(公告)号:US07629392B2

    公开(公告)日:2009-12-08

    申请号:US11100683

    申请日:2005-04-07

    CPC classification number: C01B33/1435 D21H17/68 D21H21/10 Y10S516/928

    Abstract: A process for producing an aqueous silica-based soils disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminum compound; and separating the resin from the slurry.Silica-based sols having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, as well as the use of such silica-based sols in producing paper are also disclosed.

    Abstract translation: 公开了一种生产水性二氧化硅基污垢的方法,其中具有部分其氢离子交换能力的阳离子交换树脂与碱金属硅酸盐水溶液接触以形成pH为5.0至11.5的浆料和/或具有 对应于高达45%的S值的颗粒聚集或微凝胶形成; 使用包含铝化合物的材料调节pH; 并从浆料中分离树脂。 二氧化硅溶胶的S值为15〜25%,摩尔比Si:Al为20:1〜50:1,摩尔比Si:X,其中X =碱金属为5:1〜17:1,SiO2 还公开了至少5重量%的含量和含有比表面积至少为300m 2 / g的二氧化硅基颗粒以及这种二氧化硅基溶胶在生产纸中的用途。

    Aqueous silica-containing composition
    14.
    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。

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