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    Engineered kaolin pigment composition for paper coating
    1.
    发明授权
    Engineered kaolin pigment composition for paper coating 有权
    用于纸张涂层的工程高岭土颜料组合物

    公开(公告)号：US06468343B1

    公开(公告)日：2002-10-22

    申请号：US09717802

    申请日：2000-11-21

    申请人： Robert J. Pruett ,  David O. Cummings ,  Anthony V. Lyons ,  Steven M. Fortier ,  William L. Garforth ,  Daniel J. Panfil ,  Jun Yuan

    发明人： Robert J. Pruett ,  David O. Cummings ,  Anthony V. Lyons ,  Steven M. Fortier ,  William L. Garforth ,  Daniel J. Panfil ,  Jun Yuan

    IPC分类号： C04B1410

    CPC分类号： C09C1/42 ,  C01P2004/20 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/86 ,  C01P2006/22 ,  C01P2006/60 ,  D21H19/40 ,  D21H21/52

    摘要： Paper coating composition comprising an engineered kaolin pigment containing stacks and platelets of unground coarse particles where greater than 96% by weight is less than 5 microns, of which some kaolinite books or stacks are concentrated in the greater than 1 micron size fraction; 88% to 95% by weight is less than 2 microns; 65% to 85% by weight is less than 1 micron; and 15% to 25% by weight is less than 0.25 micron. A first embodiment comprises particles with a shape factor Ad between 7 and 9 which represents a significant number of stacks and some platelets. A second embodiment comprises particles with a shape factor of 11 or 12 which represents the presence of some stacks with a majority of platelets. The kaolin clay pigments form clay-water slurries of 69% solids or greater. As a coating, the composition gives a G. E. brightness between 88 and 94. The engineered pigment is processed so that the desired shape factor is met, which shape factor is equated to the aspect ratio or morphology of the pigment.

    摘要翻译： 纸涂层组合物包含工程高岭土颜料，其含有大于96重量％的小于5微米的未研磨粗颗粒的叠层和血小板，其中一些高岭土书籍或叠层集中在大于1微米尺寸的分数中; 88％至95％重量小于2微米; 65％至85％重量小于1微米; 并且15％至25％重量小于0.25微米。 第一实施方案包括形状因子Ad在7和9之间的颗粒，其表示大量的堆叠和一些血小板。 第二个实施方案包括形状因子为11或12的颗粒，其表示存在一些具有大多数血小板的叠层。 高岭土颜料形成69％固体或更高的粘土水浆。 作为涂层，组合物在88和94之间提供G.E亮度。处理工程颜料以使满足所需的形状因子，该形状因子等于颜料的纵横比或形态。

    Engineered kaolin pigment composition for paper coating
    2.
    发明授权
    Engineered kaolin pigment composition for paper coating 有权
    用于纸张涂层的工程高岭土颜料组合物

    公开(公告)号：US6149723A

    公开(公告)日：2000-11-21

    申请号：US359532

    申请日：1999-07-22

    申请人： Robert J. Pruett ,  Anthony V. Lyons ,  David O. Cummings ,  Steven M. Fortier ,  William L. Garforth ,  Jun Yuan ,  Daniel J. Panfil

    发明人： Robert J. Pruett ,  Anthony V. Lyons ,  David O. Cummings ,  Steven M. Fortier ,  William L. Garforth ,  Jun Yuan ,  Daniel J. Panfil

    IPC分类号： C09C1/42 ,  D21H19/40 ,  D21H21/52 ,  C04B14/10

    CPC分类号： C09C1/42 ,  D21H19/40 ,  C01P2004/20 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/86 ,  C01P2006/22 ,  C01P2006/60 ,  D21H21/52

    摘要： Paper coating composition comprising an engineered kaolin pigment containing stacks and platelets of unground coarse particles where greater than 96% by weight is less than 5 microns, of which some kaolinite books or stacks are concentrated in the greater than 1 micron size fraction; 88% to 95% by weight is less than 2 microns; 65% to 85% by weight is less than 1 micron; and 15% to 25% by weight is less than 0.25 micron. A first embodiment comprises particles with a shape factor between 7 and 9 which represents a significant number of stacks and some platelets. A second embodiment comprises particles with a shape factor of 11 or 12 which represents the presence of some stacks with a majority of platelets. The kaolin clay pigments form clay-water slurries of 69% solids or greater. As a coating, the composition gives a G.E. brightness between 88 and 94. The engineered pigment is processed so that the desired shape factor is met, which shape factor is equated to the aspect ratio or morphology of the pigment.

    摘要翻译： 纸涂层组合物包含工程高岭土颜料，其含有大于96重量％的小于5微米的未研磨粗颗粒的叠层和血小板，其中一些高岭土书籍或叠层集中在大于1微米尺寸的分数中; 88％至95％重量小于2微米; 65％至85％重量小于1微米; 并且15％至25％重量小于0.25微米。 第一实施方案包括形状因子在7和9之间的颗粒，其代表大量的堆叠和一些血小板。 第二个实施方案包括形状因子为11或12的颗粒，其表示存在一些具有大多数血小板的叠层。 高岭土颜料形成69％固体或更高的粘土水浆。 作为涂层，组合物给出G.E. 亮度在88和94之间。对工程颜料进行处理，使得满足所需的形状因子，该形状因子等于颜料的纵横比或形态。

    Kaolin clay pigments, their preparation and use
    3.
    发明授权
    Kaolin clay pigments, their preparation and use 有权
    高岭土颜料，其制备及用途

    公开(公告)号：US06564199B1

    公开(公告)日：2003-05-13

    申请号：US09937671

    申请日：2001-12-20

    申请人： Robert J. Pruett ,  Jun Yuan ,  Harry Vincent Brown, Jr. ,  David O. Cummings

    发明人： Robert J. Pruett ,  Jun Yuan ,  Harry Vincent Brown, Jr. ,  David O. Cummings

    IPC分类号： C04B1404

    CPC分类号： C09C1/42 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  D21H19/40

    摘要： A paper coating pigment manufactured from kaolin crude containing minor amounts of minerals is used in lightweight coated and ultra-lightweight coated applications. The pigments comprise a phyllosilicate assemblage of minerals that yield a final pigment MgO content ranging between 0.04 to 0.3 weight percent and a K2O content ranging between 0.12 and 0.8 weight percent based on the dry weight of the kaolin crude. The mica in the pigment product is 1.0% to 6.7% by weight, and smectite is 1.2% to 9.1% by weight of the kaolin. The presence of these weight percentages can be identified by a shape factor of 15 or greater. The viscous clay content of the feed to produce the pigment product is between 70 and 100 weight percent based on the dry weight of the kaolin clay. The pigment has a shape factor ranging between 35 and 60 or greater, and greater than 80% by weight of the particle are less than 2 microns, and greater than 12% are less than 0.25 microns.

    摘要翻译： 由含有少量矿物质的高岭土原料制成的纸涂颜料用于轻质涂层和超轻质涂层应用。 颜料包括矿物的页硅酸盐组合物，其基于高岭土原油的干重，产生0.04-0.3重量％的最终颜料MgO含量和范围在0.12至0.8重量％之间的K 2 O含量。 颜料中的云母为1.0〜6.7重量％，绿土为高岭土的1.2〜9.1重量％。 这些重量百分比的存在可以通过15或更大的形状因子来识别。 用于生产颜料产品的进料的粘性粘土含量基于高岭土的干重为70-100重量％。 颜料具有35至60或更大的形状因子，并且大于80重量％的颗粒小于2微米，并且大于12重量％小于0.25微米。

    Paper coating pigments
    7.
    发明授权
    Paper coating pigments 有权
    纸张涂料颜料

    公开(公告)号：US07758690B2

    公开(公告)日：2010-07-20

    申请号：US10511203

    申请日：2003-01-29

    申请人： Christopher Nutbeem ,  David O. Cummings ,  John C. Husband ,  Dave R. Skuse

    发明人： Christopher Nutbeem ,  David O. Cummings ,  John C. Husband ,  Dave R. Skuse

    IPC分类号： C09D1/00 ,  C04B14/04 ,  C09C1/02 ,  D21H11/00

    CPC分类号： D21H19/40 ,  D21H17/67 ,  D21H19/38 ,  D21H21/52

    摘要： A coating composition for paper and other substrates, particularly mechanical papers such as lightweight coated (LWC) paper, comprises an aqueous suspension of a particulate pigment together with a binder, wherein the particulate pigment comprises: (a) a first component which is a precipitated calcium carbonate consisting predominantly of aragonitic or rhombohedral particle shapes or of aragonitic and rhombohedral particle shapes in a weight ratio of between around 40:60 and about 60:40 (e.g. about 50:50) aragonitic:rhombohedral, and a second component which is a processed particulate hydrous kaolin clay having a shape factor greater than or equal to about 25 and a steepness greater than or equal to about 20; or (b) a first component which is a fine particulate calcium carbonate consisting predominantly of particles having a generally spherical particle shape, and a second component which is a processed particulate hydrous kaolin clay having a shape factor greater than or equal to about 45 and a mean equivalent particle diameter (d50) less than about 0.5 μm; or (c) a first component which is a precipitated calcium carbonate consisting predominantly of aragonitic and rhombohedral particle shapes in a weight ratio of between about 40:60 and about 60:40 (e.g. about 50:50) aragonitic:rhombohedral, and a second component which is a processed particulate hydrous kaolin clay having a shape factor less than about 25.

    摘要翻译： 用于纸和其它基材的涂料组合物，特别是机械纸，例如轻质涂布纸（LWC）纸，包括颗粒状颜料与粘合剂的水性悬浮液，其中所述颗粒颜料包括：（a）第一组分，其为沉淀 主要由文石或菱面体颗粒形状组成的碳酸钙或重量比为约40:60至约60:40（例如约50:50）的文石和菱方体的颗粒形状，并且第二组分为 具有大于或等于约25的形状因数和大于或等于约20的陡度的处理过的颗粒状含水高岭土; 或（b）第一组分，其是主要由具有大致球形颗粒形状的颗粒组成的细颗粒碳酸钙，和第二组分，其为形状因子大于或等于约45的加工颗粒状含水高岭土，以及 平均当量粒径（d50）小于约0.5μm; 或（c）第一组分，其是主要由文石和菱方形颗粒形状组成的沉淀碳酸钙，其重量比为约40:60至约60:40（例如约50:50）文石：菱方，第二组分 组分，其是形状因子小于约25的加工颗粒水合高岭土。