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    Kaolin pigment having high brightness and narrow particle size distribution and method of preparation therefor
    61.
    发明申请
    Kaolin pigment having high brightness and narrow particle size distribution and method of preparation therefor 有权
    具有高亮度和窄粒度分布的高岭土颜料及其制备方法

    公开(公告)号：US20050178514A1

    公开(公告)日：2005-08-18

    申请号：US10508831

    申请日：2003-01-29

    申请人： Graham Pring ,  Christopher Golley

    发明人： Graham Pring ,  Christopher Golley

    IPC分类号： C04B14/04 ,  C09C1/42 ,  D21H17/68 ,  D21H19/00 ,  D21H19/40 ,  D21H21/52

    CPC分类号： D21H19/40 ,  C01P2004/62 ,  C01P2006/60 ,  C09C1/42 ,  D21H17/68 ,  D21H21/52

    摘要： The present invention provides high brightness kaolins exhibiting a Brightness (GE) of at least about 90.0. The hydrous kaolin pigments of the present invention may also have, inter alia, a steepness index (d30/d70×100) of at least about 39 and/or a titania concentration less than or equal to about 0.40% by weight of the pigment on a dry basis. (062) The hydrous kaolin pigment is produced by a process comprising: a) forming an aqueous suspension of a hydrous kaolin clay; b) forming a primary product by subjecting the suspension to classification or a combination of classification and griding; c), separating the kaolin from impurities by selective flocculation; and d) defining the separated kaolin. (063) The hydrous kaolins of the present invention allow coated papers to be produced at high brightness while maintaining acidic conditions on a paper machine. The invention pigmets exhibit brightness levels unexpectedly higher, e.g., about 2 to about 2.5 or more (GE) units brighter, than exhibited by previous high brightness hydrous kaolin pigments, without sacrificing other important paper properties. Paper coated with the inventive pigmants have high brightness, high whiteness, and high fluorescence levels. The present invention encompasses these pigments, compositions comprising them, and any application in which they are used.

    摘要翻译： 本发明提供了表现出至少约90.0的亮度（GE）的高亮度高岭土。 本发明的含水高岭土颜料还可以具有至少约39的陡度指数（d 30 30/100×100）和/或二氧化钛 浓度小于或等于约0.40重量％的颜料。 （062）含水高岭土颜料通过以下方法制备，所述方法包括：a）形成含水高岭土的水悬浮液; b）通过对悬浮液进行分级或分级和研磨的组合来形成初级产品; c）通过选择性絮凝将高岭土与杂质分离; 和d）限定分离的高岭土。 （063）本发明的含水高岭土使得可以在造纸机上保持酸性条件下以高亮度生产涂布纸。 本发明的清洁料具有比以前的高亮度含水高岭土颜料表现出的亮度高出意料之高，例如约2至约2.5或更多（GE）单元更亮，而不牺牲其它重要的纸张性能。 用本发明的染色剂涂布的纸具有高亮度，高白度和高荧光水平。 本发明包括这些颜料，包含它们的组合物以及使用它们的任何应用。

    Fluff pulp for absorption products
    62.
    发明授权
    Fluff pulp for absorption products 失效
    绒毛浆用于吸收产品

    公开(公告)号：US06918992B1

    公开(公告)日：2005-07-19

    申请号：US09926340

    申请日：2000-04-14

    申请人： Annica Strandberg ,  Stefan Hogman ,  Helena Tufvesson

    发明人： Annica Strandberg ,  Stefan Hogman ,  Helena Tufvesson

    IPC分类号： A61L15/18 ,  A61L15/28 ,  A61L15/60 ,  D21C9/00 ,  D21H17/68

    CPC分类号： D21H17/68 ,  A61L15/18 ,  A61L15/28 ,  A61L15/60 ,  D21C9/004 ,  C08L1/00

    摘要： A method of making a dry defibered fluff pulp suitable for absorption products is described. In the making of fluff pulp bentonite (montmorillonite), and optionally an additional inorganic particle compound, such as a synthetic silicate compound, is added to the pulp in an amount that in the final fluff pulp yields an amount of bentonite of 0.2 to 7 kg per ton fluff pulp and optionally an amount of the additional inorganic particle compound of 0.2 to 7 kg per ton fluff pulp, the total amount of retained particle additives amounting to no more than 8 kg per ton fluff pulp. Moreover, a thus made fluff pulp for absorption products, an absorption core for absorption products comprising such dry defibered fluff pulp and optionally a superabsorbent, and an absorption product comprising such a dry defibered fluff pulp and/or an absorption core are described. Moreover the use of such a dry defibered fluff pulp and/or absorption product for production of hygiene products, such as diapers, incontinent pads, sanitary napkins and wiper cloths are described.

    摘要翻译： 描述了制备适于吸收产品的干燥脱纤绒毛浆的方法。 在制造绒毛纸浆膨润土（蒙脱石）时，和任选的另外的无机颗粒化合物如合成硅酸盐化合物加入到纸浆中，其量在最终绒毛浆中产生0.2至7kg的膨润土量 每吨绒毛浆和任选的一定量的额外的无机颗粒化合物为0.2至7kg /吨绒毛浆，剩余颗粒添加剂的总量不超过8kg /吨绒毛浆。 此外，由此制造用于吸收产品的由此制成的绒毛浆，包含这种干脱纤绒毛浆和任选的超吸收剂的吸收产品的吸收芯，以及包含这种干脱纤绒毛浆和/或吸收芯的吸收产品。 此外，描述了使用这种干燥脱纤维绒毛浆和/或吸收产品来生产卫生用品，例如尿布，失禁垫，卫生巾和擦拭布。

    Paper and paper coating products produced using multi-phase calcium silicate hydrates
    63.
    发明申请
    Paper and paper coating products produced using multi-phase calcium silicate hydrates 审中-公开
    使用多相硅酸钙水合物生产的纸和纸涂层产品

    公开(公告)号：US20050103459A1

    公开(公告)日：2005-05-19

    申请号：US10831526

    申请日：2004-04-23

    申请人： Vijay Mathur

    发明人： Vijay Mathur

    IPC分类号： D21H17/68 ,  D21H19/40 ,  D21H19/54 ,  D21H21/28 ,  D21H11/00

    CPC分类号： D21H21/285 ,  D21H17/68 ,  D21H19/40 ,  D21H19/54

    摘要： A paper composition including multiphasic calcium silicate hydrate fillers. Multi-phase calcium silicate hydrates, having unique physical and chemical properties, are prepared by hydrothermal reaction of specified ratios of CaO and SiO2, normally starting from slurries of slaked lime and from fluxed calcined diatomaceous earth, each of which is at about the atmospheric boiling point before being mixed and charged to a reactor, and pressurized. The hydrothermal reaction is carried out while maintaining the initial dilution for a preselected reaction time at a preselected reaction temperature. The calcium silicate hydrates have high water absorption and light scattering power, and have optical and physical properties making them highly desirable as a filler in papermaking.

    摘要翻译： 包括多相硅酸钙水合物填料的纸组合物。 具有独特物理和化学性质的多相硅酸钙水合物通过CaO和SiO 2的特定比例的水热反应制备，通常从消石灰的浆料和来自经过煅烧的煅烧硅藻土开始，每个沸石处于大气沸点 然后混合并加入反应器中并加压。 在预选反应温度下保持预选反应时间的初始稀释进行水热反应。 硅酸钙水合物具有高吸水性和光散射能力，并且具有光学和物理性质，使得它们作为造纸中的填料非常需要。

    Papermaking process
    67.
    发明授权
    Papermaking process 有权
    造纸过程

    公开(公告)号：US6007679A

    公开(公告)日：1999-12-28

    申请号：US172568

    申请日：1998-10-14

    申请人： R. Nagarajan ,  Jane B. Wong Shing

    发明人： R. Nagarajan ,  Jane B. Wong Shing

    IPC分类号： D21H17/37 ,  D21H17/45 ,  D21H17/68 ,  D21H21/10 ,  D21H23/14

    CPC分类号： D21H23/14 ,  D21H21/10 ,  D21H17/37 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68

    摘要： The invention relates to a paper making process in which improved drainage and retention is obtained by the addition of an effective amount of a cationic dispersion polymer to an aqueous cellulosic paper making slurry prior to shearing the slurry; which cationic dispersion polymer is selected from a group of copolymers consisting of:i) a copolymer of about 10 mole % DMAEA.BCQ and about 90 mole % AcAm;ii) a copolymer of about 10 mole % DMAEA.MCQ and about 90 mole % AcAm; andiii) a copolymer of about 20 mole % DMAEA.MCQ and about 80 mole % AcAm; andadding to the slurry, after said cationic dispersion polymer is added and the slurry is sheared,a microparticle selected from the group consisting ofa) copolymers of acrylic acid and acrylamide;b) bentonite; andc) dispersed silica.

    摘要翻译： 本发明涉及一种造纸工艺，其中通过在剪切浆料之前将有效量的阳离子分散体聚合物加入到纤维素水性造纸浆料中获得改进的排水和保留性; 该阳离子分散聚合物选自以下组成的共聚物：i）约10摩尔％DMAEA.BCQ和约90摩尔％AcAm的共聚物; ii）约10摩尔％DMAEA.MCQ和约90摩尔％AcAm的共聚物; 和iii）约20摩尔％DMAEA.MCQ和约80摩尔％AcAm的共聚物; 并加入到浆料中，在加入所述阳离子分散体聚合物并将浆料剪切后，选自a）丙烯酸和丙烯酰胺的共聚物的微粒; b）膨润土 和c）分散二氧化硅。

    Sizing dispersions
    69.
    发明授权
    Sizing dispersions 失效
    调整分散体

    公开(公告)号：US5876562A

    公开(公告)日：1999-03-02

    申请号：US849180

    申请日：1997-05-28

    申请人： Hans Johansson

    发明人： Hans Johansson

    IPC分类号： D21H17/17 ,  D21H17/68 ,  D21H21/16

    CPC分类号： D21H17/68 ,  D21H17/17 ,  D21H21/16

    摘要： An aqueous anionic sizing dispersion which comprises an anionic dispersion of a cellulose-reactive sizing agent and colloidal anionic aluminum modified silica-based particles. The dispersion is used in the production of paper, board or cardboard whereby the dispersion is either added to the stock or applied as a surface size.

    摘要翻译： PCT No.PCT / SE95 / 01446 Sec。 371日期1997年5月28日 102（e）日期1997年5月28日PCT提交1995年12月1日PCT公布。 公开号WO96 / 17127 日期1996年6月6日一种含水阴离子上浆分散体，其包含纤维素反应性施胶剂和胶态阴离子铝改性二氧化硅基颗粒的阴离子分散体。 分散体用于生产纸张，纸板或纸板，由此将分散体添加到原料中或作为表面尺寸施加。