公开(公告)号：US20050098283A1

公开(公告)日：2005-05-12

申请号：US10899315

申请日：2004-07-27

申请人： Christopher Golley ,  John Manasso

发明人： Christopher Golley ,  John Manasso

IPC分类号： B41M1/10 ,  B41M5/00 ,  B41M5/52 ,  C04B33/14 ,  C09C1/42 ,  C09D11/02 ,  D21H17/68 ,  D21H19/40 ,  C04B14/04

CPC分类号： B41M5/52 ,  B41M1/10 ,  B41M5/5218 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/22 ,  C04B33/14 ,  C04B33/36 ,  C04B35/6261 ,  C04B35/62625 ,  C04B35/6263 ,  C04B35/63 ,  C04B35/632 ,  C04B35/63424 ,  C04B2235/3201 ,  C04B2235/3217 ,  C04B2235/349 ,  C04B2235/447 ,  C04B2235/52 ,  C04B2235/5292 ,  C09C1/42 ,  C09D11/03 ,  D21H17/68 ,  D21H19/40 ,  Y10T428/31993

摘要： The present invention provides kaolin clay pigments having at least the following characteristics: Brightness (GE): at least about 89.0; Shape Factor: at least about 30; Brookfield viscosity, measured at 20 rpm and at less than or equal to about 65% solids: about 100 to about 700 centipoise; and Hercules viscosity, measured at 18 dynes and at less than or equal to about 65% solids: about 200 rpm to about 1000 rpm. Preferred kaolin sources include Brazilian kaolins, especially Rio Capim kaolins. The kaolin pigments of the present invention possess a combination of optical and physical properties, such as brightness, printability, and transfer efficiency, not previously seen in existing commercial products. They are useful, e.g., in paper filler and coating compositions, ink compositions, and printing applications, especially rotogravure printing.

摘要翻译： 本发明提供至少具有以下特征的高岭土颜料：亮度（GE）：至少约89.0; 形状因子：至少约30; 布鲁克菲尔德粘度，以20rpm和小于或等于约65％固体测量：约100至约700厘泊; 和Hercules粘度，以18达因和小于或等于约65％固体测量：约200rpm至约1000rpm。 优选的高岭土来源包括巴西高岭土，特别是Rio Capim高岭土。 本发明的高岭土颜料具有光学和物理性能的组合，例如亮度，可印刷性和转印效率，这在现有的商业产品中未见过。 它们是有用的，例如在纸填料和涂料组合物，油墨组合物和印刷应用中，特别是凹版印刷。

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。

公开(公告)号：US20060131243A1

公开(公告)日：2006-06-22

申请号：US10531470

申请日：2004-02-09

申请人： Michael Garska ,  Robert Pruett ,  Jun Yuan ,  Christopher Golley

发明人： Michael Garska ,  Robert Pruett ,  Jun Yuan ,  Christopher Golley

IPC分类号： C02F1/52

CPC分类号： C04B35/62635 ,  B01D21/01 ,  C02F1/56 ,  C02F1/66 ,  C04B33/04 ,  C04B33/10 ,  C04B35/62625 ,  C04B35/6263 ,  C04B35/63 ,  C04B35/632 ,  C04B35/63424 ,  C04B35/63444 ,  C04B2235/3201 ,  C04B2235/3217 ,  C04B2235/349 ,  C04B2235/447 ,  C04B2235/72 ,  C04B2235/727

摘要： A method for the treatment of kaolin particulate material comprising: providing a dispersed aqueous suspension comprising kaolin particulate material and having a pH of at least about 7.5; selecting at least one selective flocculation polymer, wherein said at least one selective flocculation polymer has a measured anionicity ranging from about 1% to about 12%, such as from about 4.5% to about 8%; selectively flocculating said suspension into a first layer and a second layer by adding to said suspension said at least one selective flocculation polymer, and separating said first layer from said second layer.

摘要翻译： 一种用于处理高岭土颗粒材料的方法，包括：提供包含高岭土颗粒材料并且具有至少约7.5的pH的分散的水性悬浮液; 选择至少一种选择性絮凝聚合物，其中所述至少一种选择性絮凝聚合物具有约1％至约12％，例如约4.5％至约8％的测量的阴离子度; 通过向所述悬浮液中加入所述至少一种选择性絮凝聚合物，并将所述第一层与所述第二层分离，将所述悬浮液选择性地絮凝成第一层和第二层。

公开(公告)号：US20060096501A1

公开(公告)日：2006-05-11

申请号：US10518338

申请日：2003-08-15

申请人： David Light ,  Christopher Golley ,  Ernest Gay ,  Milton Constantin

发明人： David Light ,  Christopher Golley ,  Ernest Gay ,  Milton Constantin

IPC分类号： C04B14/04

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

摘要： A pigment product for use in a coating composition to provide a gloss coating on paper, the pigment product comprising a processed particulate kaolin having a particle size distribution such that at least about 80% by weight of the particles have an equivalent spherical diameter less than about 2 p,m and in the range of from about 10% to about 20% by weight of the particles have an equivalent spherical diameter less than about 0.25 wm, the particles have a shape factor in the range of from about 20 to about 36 and the particles have a particle steepness in the range of about greater than about 35, more preferably in the range of about 35 to about 40, and wherein the kaolin is derived from a secondary kaolin source.