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23 条记录 (耗时 0.025 秒)

    Cellulosic product and process for its production
    11.
    发明授权
    Cellulosic product and process for its production 失效
    纤维素产品及其生产工艺

    公开(公告)号：US07303654B2

    公开(公告)日：2007-12-04

    申请号：US10717276

    申请日：2003-11-18

    申请人： Marek Tokarz ,  Jerker Nilsson

    发明人： Marek Tokarz ,  Jerker Nilsson

    IPC分类号： D21H11/00

    CPC分类号： D21H17/68 ,  Y10T428/24455

    摘要： The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. The invention also relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a cationic clay; (iii) adding to the suspension one or more drainage and retention aids comprising at least one cationic polymer; and (iv) dewatering the obtained suspension. The invention further relates to a cellulosic product comprising clay having 3R2 stacking.

    摘要翻译： 本发明涉及一种生产纤维素产品的方法，其包括（i）提供水性纤维素悬浮液; （ii）向悬浮液中加入具有3R 2 N 2堆叠的粘土; 和（iii）对获得的悬浮液进行脱水。 本发明还涉及一种生产纤维素产品的方法，其包括（i）提供水性纤维素悬浮液; （ii）向悬浮液中加入阳离子粘土; （iii）向悬浮液中加入一种或多种包含至少一种阳离子聚合物的排水和助留剂; 和（iv）使得到的悬浮液脱水。 本发明还涉及包含具有3R 2层叠的粘土的纤维素产品。

    Process for the production of cellulosic product
    13.
    发明授权
    Process for the production of cellulosic product 失效
    生产纤维素产品的方法

    公开(公告)号：US08157962B2

    公开(公告)日：2012-04-17

    申请号：US12520638

    申请日：2007-12-18

    申请人： Patrik Simonson ,  Marek Tokarz ,  Katarina Gutke

    发明人： Patrik Simonson ,  Marek Tokarz ,  Katarina Gutke

    IPC分类号： D21H11/00

    CPC分类号： D21H17/65 ,  D21H17/66 ,  D21H17/67 ,  D21H21/10

    摘要： The present invention relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight; adding to the thick suspension an aluminum compound, alkaline earth metal salt and acid; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention further relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight and an alkaline earth metal ion concentration of at least about 100 mg/l; adding to the thick suspension an aluminum compound and optionally an acid to obtain a pH of from about 4 to about 5.5; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention also relates to an aqueous composition comprising a mixture of an aluminum compound, alkaline earth metal salt and acid and the use of the composition.

    摘要翻译： 本发明涉及一种生产纤维素产品的方法，该方法包括提供含有纤维浓度至少约2重量％的纤维素纤维的水性浓悬浮液; 向厚悬浮液中加入铝化合物，碱土金属盐和酸; 稀释所得稠悬浮液以形成薄悬浮液; 向薄悬浮液中加入一种或多种排水和助留剂; 并将得到的薄悬浮液脱水。 本发明还涉及一种生产纤维素产品的方法，该方法包括提供含有纤维素浓度至少为约2重量％且碱土金属离子浓度为至少约100mg / l; 向厚悬浮液中加入铝化合物和任选的酸以获得约4至约5.5的pH; 稀释所得稠悬浮液以形成薄悬浮液; 向薄悬浮液中加入一种或多种排水和助留剂; 并将得到的薄悬浮液脱水。 本发明还涉及包含铝化合物，碱土金属盐和酸的混合物的水性组合物和组合物的用途。

    Silica-based sols
    14.
    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

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    IPC分类号： B01F3/12 ,  C01B33/113 ,  C01B33/20

    CPC分类号： C01B33/146 ,  C01B33/141 ,  C01B33/143 ,  C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10

    摘要： 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.

    摘要翻译： 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。

    Silica-based sols
    15.
    发明申请
    Silica-based sols 有权
    二氧化硅溶胶

    公开(公告)号：US20050113462A1

    公开(公告)日：2005-05-26

    申请号：US10999867

    申请日：2005-01-08

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    IPC分类号： B01J13/00 ,  C01B33/14 ,  C01B33/141 ,  C01B33/143 ,  C01B33/146 ,  D21H17/29 ,  D21H17/37 ,  D21H17/45 ,  D21H17/68 ,  D21H21/10 ,  B01F3/12

    CPC分类号： C01B33/146 ,  C01B33/141 ,  C01B33/143 ,  C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10

    摘要： A process for the production of an aqueous sol containing silica-based particles which comprises (a) acidifying an aqueous silicate solution to a pH of from 1 to 4 to form an acid sol; (b) alkalising the acid sol at an SiO2 content within the range of from 4.5 to 8% by weight; (c) allowing particle growth of the alkalised sol for at least 10 minutes; or heat-treating the alkalised sol at a temperature of a least 30° C.; (d) alkalising the obtained sol to a pH of at least 10.0; and (e) optionally concentrating the sol obtained according to (b), (c) or (d) to provide an aqueous sol containing silica-based particles and having a specific surface area of at least 90 m2/g aqueous sol; as well as an aqueous sol containing silica-based particles obtainable by the process. The invention also 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 and less than 1000 m2/g SiO2. The invention further relates to 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.

    摘要翻译： 一种制备含有二氧化硅基颗粒的水性溶胶的方法，其包括（a）将硅酸盐水溶液酸化至1至4的pH以形成酸性溶胶; （b）在4.5〜8重量％的SiO 2含量范围内碱化酸性溶胶; （c）允许碱化溶胶的颗粒生长至少10分钟; 或在至少30℃的温度下热处理碱化溶胶。 （d）将所得溶胶碱化至至少10.0的pH; 和（e）任选地浓缩根据（b），（c）或（d）获得的溶胶，以提供含有二氧化硅基颗粒并且比表面积为至少90m 2 / > / g水溶胶; 以及含有可通过该方法获得的二氧化硅基颗粒的含水溶胶。 本发明还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 ％或含有比表面积至少为550且小于1000m 2 / g SiO 2的二氧化硅基颗粒。 本发明还涉及含有二氧化硅基颗粒的水性溶胶作为生产纸的排水和助留剂的用途以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 将这种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。

    Silica-based sols
    18.
    发明授权
    Silica-based sols 有权
    二氧化硅溶胶

    公开(公告)号：US08568565B2

    公开(公告)日：2013-10-29

    申请号：US13054219

    申请日：2009-07-10

    申请人： Marek Tokarz ,  Hans-Åke Baltsen

    发明人： Marek Tokarz ,  Hans-Åke Baltsen

    IPC分类号： D21H17/68 ,  D21H21/10 ,  C01B33/14

    CPC分类号： C01B33/141 ,  D21H17/68

    摘要： The present invention relates to a silica-based sol having a concentration of soluble silica of less than about 1000 mg SiO2/l, conductivity of at least about 2.0 mS/cm and S-value below about 50%. The invention further relates to a method of producing a silica-based sol comprising subjecting an aqueous alkali metal silicate solution to electrodialysis to form an electrodialyzed sol, and acidifying the electrodialyzed sol to form an acidified sol having a pH in the range of from about 5.0 to about 10. The invention further relates to silica-based sol obtainable by the process and to the use of the silica-based sol as a flocculating agent. The invention further relates to a process for producing paper which comprises providing an aqueous suspension comprising cellulosic fibers, adding to the suspension one or more drainage and retention aids comprising a silica-based sol according to the invention, and dewatering the obtained suspension to provide a sheet or web of paper.

    摘要翻译： 本发明涉及二氧化硅基溶胶，其溶解二氧化硅的浓度小于约1000mg SiO 2 / l，电导率为至少约2.0mS / cm，S值低于约50％。 本发明还涉及二氧化硅系溶胶的制造方法，其特征在于，使碱金属硅酸盐水溶液进行电渗析，形成电渗析溶胶，酸化所述电渗析溶胶，形成pH为约5.0的酸化溶胶 本发明还涉及通过该方法获得的二氧化硅基溶胶，以及二氧化硅基溶胶作为絮凝剂的用途。 本发明还涉及一种生产纸的方法，其包括提供包含纤维素纤维的水性悬浮液，向悬浮液中加入一种或多种包含根据本发明的基于二氧化硅的溶胶的引流和助留助剂，并将获得的悬浮液脱水以提供 纸张或纸张。

    Production of paper using slica-based-sols
    19.
    发明授权
    Production of paper using slica-based-sols 有权
    使用二氧化硅基溶胶生产纸张

    公开(公告)号：US07670460B2

    公开(公告)日：2010-03-02

    申请号：US11642391

    申请日：2006-12-20

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    IPC分类号： D21H11/00

    CPC分类号： C01B33/1435 ,  C01B33/141 ,  C01B33/146

    摘要： A process for the production of paper which includes the steps of providing an aqueous suspension containing cellulosic fibers, and optional fillers; adding to the suspension: (a) at least one charged organic polymer; and (b) an aqueous sol containing silica-based particles; wherein the sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (III) forming and draining the suspension on a wire. The invention is further directed to processes for making paper wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a silica content of at least 10% by weight, or wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 7 to 25 cP; (iii) a silica content of at least 10% by weight; (iv) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (v) a pH of at least 10.6. The invention is further directed to a process for making paper wherein the added sol is modified by an aluminum-containing compound, a boron-containing compound or a mixture thereof and has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; (iii) a silica content of at least 10% by weight; and (iv) a molar ratio of SiO2 to M2O, where M being alkali metal or ammonium, within the range of from 10:1 to 40:1.

    摘要翻译： 一种生产纸的方法，包括提供含有纤维素纤维的水性悬浮液和任选的填料的步骤; 向悬浮液中加入：（a）至少一种带电荷的有机聚合物; 和（b）含有二氧化硅基颗粒的水性溶胶; 其中所述溶胶具有：（i）在10至45％范围内的S值; （ii）粘度在5至40cP的范围内; 和（iii）SiO 2与M 2 O的摩尔比，其中M是碱金属或铵，在10:1至40:1的范围内; 和（III）在线上形成和排出悬浮液。 本发明进一步涉及制备纸的方法，其中所添加的溶胶具有：（i）S值在10至45％的范围内; （ii）粘度在5至40cP的范围内; 和（iii）至少10重量％的二氧化硅含量，或其中所添加的溶胶具有：（i）在10至45％范围内的S值; （ii）在7至25cP范围内的粘度; （iii）二氧化硅含量为至少10重量％; （iv）SiO 2与M 2 O的摩尔比，其中M为碱金属或铵，为10：1至40：1; 和（v）至少10.6的pH。 本发明还涉及一种制造纸的方法，其中添加的溶胶被含铝化合物，含硼化合物或其混合物改性，并具有：（i）S值在10〜 45％; （ii）粘度在5至40cP的范围内; （iii）二氧化硅含量为至少10重量％; 和（iv）SiO 2与M 2 O的摩尔比，其中M为碱金属或铵，为10：1至40：1。

    Production of paper using slica-based-sols
    20.
    发明申请
    Production of paper using slica-based-sols 有权
    使用二氧化硅基溶胶生产纸张

    公开(公告)号：US20070095493A1

    公开(公告)日：2007-05-03

    申请号：US11642391

    申请日：2006-12-20

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    IPC分类号： D21H21/10

    CPC分类号： C01B33/1435 ,  C01B33/141 ,  C01B33/146

    摘要： A process for the production of paper which includes the steps of providing an aqueous suspension containing cellulosic fibers, and optional fillers; adding to the suspension: (a) at least one charged organic polymer; and (b) an aqueous sol containing silica-based particles; wherein the sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (III) forming and draining the suspension on a wire. The invention is further directed to processes for making paper wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a silica content of at least 10% by weight, or wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 7 to 25 cP; (iii) a silica content of at least 10% by weight; (iv) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (v) a pH of at least 10.6. The invention is further directed to a process for making paper wherein the added sol is modified by an aluminum-containing compound, a boron-containing compound or a mixture thereof and has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; (iii) a silica content of at least 10% by weight; and (iv) a molar ratio of SiO2 to M2O, where M being alkali metal or ammonium, within the range of from 10:1 to 40:1.

    摘要翻译： 一种生产纸的方法，包括提供含有纤维素纤维的水性悬浮液和任选的填料的步骤; 向悬浮液中加入：（a）至少一种带电荷的有机聚合物; 和（b）含有二氧化硅基颗粒的水性溶胶; 其中所述溶胶具有：（i）在10至45％范围内的S值; （ii）粘度在5至40cP的范围内; 和（iii）SiO 2与M 2 O的摩尔比，其中M是碱金属或铵，在10:1至40:1的范围内; 和（III）在线上形成和排出悬浮液。 本发明进一步涉及制备纸的方法，其中所添加的溶胶具有：（i）S值在10至45％的范围内; （ii）粘度在5至40cP的范围内; 和（iii）至少10重量％的二氧化硅含量，或其中所添加的溶胶具有：（i）在10至45％范围内的S值; （ii）在7至25cP范围内的粘度; （iii）二氧化硅含量为至少10重量％; （iv）SiO 2与M 2 O的摩尔比，其中M是碱金属或铵，在10:1至40:1的范围内; 和（v）至少10.6的pH。 本发明还涉及一种制造纸的方法，其中添加的溶胶被含铝化合物，含硼化合物或其混合物改性，并具有：（i）S值在10〜 45％; （ii）粘度在5至40cP的范围内; （iii）二氧化硅含量为至少10重量％; 和（iv）SiO 2与M 2 O的摩尔比，其中M为碱金属或铵，为10：1至40：1。