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    Formulation suitable for ink receptive coatings
    4.
    发明授权
    Formulation suitable for ink receptive coatings 有权
    适用于油墨接受涂料的配方

    公开(公告)号：US06780920B2

    公开(公告)日：2004-08-24

    申请号：US10305041

    申请日：2002-11-26

    申请人： David Monroe Chapman ,  Demetrius Michos

    发明人： David Monroe Chapman ,  Demetrius Michos

    IPC分类号： C08K336

    CPC分类号： B41M5/52 ,  B41M5/5218 ,  B41M5/5236 ,  B41M5/5245 ,  B41M5/5254 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/14 ,  C08K3/01 ,  C08K3/36 ,  C08K9/02 ,  Y10T428/249953 ,  Y10T428/249956 ,  Y10T428/253 ,  Y10T428/256 ,  Y10T428/2982 ,  C08L57/12 ,  C08L29/04 ,  C08L31/04

    摘要： Formulations comprising novel porous metal oxide particles and binder are particularly suitable for ink receptive coatings, e.g., for ink jet papers and films. The metal oxide particles used in this application have a porous structure that differs significantly from the nonporous silica colloids. The particles have a median particle size in the range of about 0.05 to about 3 microns and porosity such that when an aqueous dispersion of the particles is dried at least 0.5 cc/g of pore volume is from pores having a pore size of 600 Å or less. The particles also have a viscosity derived pore volume of at least 0.5 cc/g. Formulations comprising particles having a zeta potential of +20 mV are also disclosed.

    摘要翻译： 包含新型多孔金属氧化物颗粒和粘合剂的制剂特别适用于油墨接受涂层，例如用于喷墨纸和薄膜。 在本申请中使用的金属氧化物颗粒具有与无孔二氧化硅胶体显着不同的多孔结构。 颗粒具有在约0.05至约3微米范围内的中值粒度和孔隙率，使得当颗粒的水分散体干燥至少0.5cc / g的孔体积时，来自孔径为600埃的孔，或 减。 颗粒还具有至少0.5cc / g的粘度导出孔体积。还公开了包含ζ电位为+ 20mV的颗粒的模型。

    Chemically assisted milling of silicas
    6.
    发明申请
    Chemically assisted milling of silicas 审中-公开
    二氧化硅的化学辅助研磨

    公开(公告)号：US20110094418A1

    公开(公告)日：2011-04-28

    申请号：US11632610

    申请日：2005-06-15

    申请人： David Monroe Chapman

    发明人： David Monroe Chapman

    IPC分类号： C09D1/00

    CPC分类号： C01B33/149 ,  C01B33/1417 ,  C01P2006/22 ,  C08K3/36 ,  C08K7/26 ,  C09D7/62 ,  C09D7/67 ,  C09D7/68 ,  C09D7/69

    摘要： The present invention relates to a dispersion of porous surface modified silica particles including fluid and the porous particles, wherein the maximum fractional occupied volume (Φmax) of the particles in the dispersion is at least about 0.55 as determined from the relationship (I) wherein Φ is the fractional occupied volume of the solids in the fluid, Φmax is the asymptotic limit (maximum) of fractional occupied volume as the viscosity approaches infinity, b is the intrinsic viscosity, no is the viscosity of the fluid and n is the viscosity of the dispersion. η/η0=[1−(Φ/Φmax)]−[b]Φmax   (1)

    摘要翻译： 本发明涉及包含流体和多孔颗粒的多孔表面改性二氧化硅颗粒的分散体，其中根据关系式（I）确定分散体中颗粒的最大分数占有体积（Φmax）至少为约0.55，其中Φ 是流体中固体的分数占有体积，Φmax是粘度接近无穷大时分数占有体积的渐近极限（最大），b是特性粘度，不是流体的粘度，n是粘度 分散。 ＆eegr; /＆eegr; 0 = [1-（Φ/Φmax）] - [b]Φmax（1）

    Ink-receptive coatings and recording medium prepared therefrom
    7.
    发明授权
    Ink-receptive coatings and recording medium prepared therefrom 失效
    油墨接收涂料和由其制备的记录介质

    公开(公告)号：US06818685B1

    公开(公告)日：2004-11-16

    申请号：US09350060

    申请日：1999-07-08

    申请人： David Monroe Chapman

    发明人： David Monroe Chapman

    IPC分类号： C08K900

    CPC分类号： B41M5/52 ,  B41M5/5218 ,  B41M5/5236 ,  B41M5/5254 ,  C08L25/10 ,  C08L29/04 ,  C08L33/26 ,  C08L39/06 ,  C09D129/04 ,  C09D131/04 ,  D21H19/40 ,  D21H19/58 ,  C08L2666/04 ,  C08L2666/02

    摘要： The coating composition comprises inorganic oxide, e.g., silica, in combination with a binder system comprising a mixture of a water soluble polymer and non-ionic latex polymer. The composition may contain optional dye mordant (e.g., cationic polymer). It is found that the combinations of these components result in relatively high solids formulations (e.g., greater than 20% by weight) with relatively low viscosity (less than 5000 centipose), do not exhibit coating dusting, and give exceptional ink-jet printability. These formulations are especially suitable for preparing on-line formulations because they can be formulated to have a viscosity less than 2000 centipose. Preferable embodiments for online coatings have a viscosity less than 1000 centipose.

    摘要翻译： 涂料组合物包括无机氧化物，例如二氧化硅，与包含水溶性聚合物和非离子胶乳聚合物的混合物的粘合剂体系的组合。 组合物可以含有任选的染料媒染剂（例如阳离子聚合物）。 发现这些组分的组合导致相对高的固体制剂（例如，大于20重量％），具有相对低的粘度（小于5000厘泊），不表现出涂层粉尘，并且具有出色的喷墨印刷性。 这些制剂特别适用于制备在线制剂，因为它们可以配制成具有小于2000厘米的粘度。 在线涂料的优选实施方案具有小于1000厘泊的粘度。

    Dispersion of fine porous inorganic oxide particles and processes for preparing same
    10.
    发明授权
    Dispersion of fine porous inorganic oxide particles and processes for preparing same 有权
    细多孔无机氧化物颗粒的分散及其制备方法

    公开(公告)号：US06380265B1

    公开(公告)日：2002-04-30

    申请号：US09343842

    申请日：1999-06-30

    申请人： James Neil Pryor ,  David Monroe Chapman

    发明人： James Neil Pryor ,  David Monroe Chapman

    IPC分类号： B01F312

    CPC分类号： C01B33/141

    摘要： A dispersion comprising fine porous inorganic oxide particles, e.g., silica gel particles, wherein the particles have a median particle size below three microns. The dispersed particles have a porosity after drying in which at least about 0.50 cc/g of pore volume is from pores having a pore size of 600 Å or less as determined by nitrogen porosimetry. Embodiments prepared from silica gel have porosity after drying in which at least about 0.7 cc/g of pore volume is from pores having a diameter of 600 Å or smaller. The particles of the dispersion also can be described as having viscosity derived pore volume of at least about 0.5 g/cc. The dispersion is prepared by forming a dispersion from inorganic oxides having sufficient rigid structure to maintain porosity after milling and drying. After the inorganic oxide is selected, it is milled to have a median particle size of 0.05 to about 3 microns. In embodiments in which stable dispersions of fine porous particles are desired without the addition of substantial amounts of dispersant, or if dispersions having a median particle size less than one micron are desired, the dispersion is created by, for example, centrifuging the milled slurry to obtain a settled phase and a supernatant phase in which the median particle size is in the range of 0.05 to about 1 micron. The supernatant phase is then separated from the settled phase to create the final product.

    摘要翻译： 包含细小的多孔无机氧化物颗粒的分散体，例如硅胶颗粒，其中颗粒具有低于3微米的中值粒度。 分散的颗粒在干燥后具有孔隙率，其中孔体积至少约0.50cc / g来自通过氮气孔率法测定的孔径为600埃或更小的孔。 由硅胶制备的实施例在干燥后具有多孔性，其中至少约0.7cc / g的细孔体积是直径为600或更小的孔。 分散体的颗粒也​​可以被描述为具有至少约0.5g / cc的粘度导出孔体积。 通过从具有足够刚性结构的无机氧化物形成分散体以在研磨和干燥后保持孔隙率来制备分散体。 在选择无机氧化物之后，将其研磨成具有0.05至约3微米的中值粒度。 在不需要添加大量分散剂的情况下需要微细多孔颗粒的稳定分散的实施方案中，或者如果需要具有小于1微米的中值粒径的分散体，则通过例如将研磨的浆料离心至 获得沉淀相和上清液相，其中中值粒度在0.05至约1微米的范围内。 然后将上清液相从沉降相分离以产生最终产物。