利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

37 条记录 (耗时 0.027 秒)

    Structured boehmite pigment and method for making same
    1.
    发明授权
    Structured boehmite pigment and method for making same 失效
    结构勃姆石颜料及其制备方法

    公开(公告)号：US06413308B1

    公开(公告)日：2002-07-02

    申请号：US09419665

    申请日：1999-10-15

    申请人： Wen-Qing Xu ,  Gary M. Freeman

    发明人： Wen-Qing Xu ,  Gary M. Freeman

    IPC分类号： C01F702

    CPC分类号： C01F7/448 ,  C01F7/02 ,  C01P2004/03 ,  C01P2004/45 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/19 ,  C01P2006/60 ,  C09C1/407 ,  C09D7/42

    摘要： A structured boehmite pigment which comprises a plurality of alumina monohydrate particles. The pigment is particularly useful as a flatting pigment in paint and as an anti-block agent in plastic film. The boehmite pigment has an aggregate median particle size of about 8 to about 30 microns; a total pore volume of at least about 0.8 ml/g; a differential pore volume of less than about 0.3 ml/g; an oil absorption of about 70 to about 135 m/g; a BET surface area of about 3 to about 20 m2/g, and a TAPPI brightness of at least about 90.

    摘要翻译： 一种结构勃姆石颜料，其包含多个氧化铝一水合物颗粒。 该颜料特别可用作涂料中的平色颜料和塑料膜中的防粘连剂。 勃姆石颜料具有约8至约30微米的聚集体中值粒度; 总孔体积至少约0.8ml / g; 微孔容积小于约0.3ml / g; 油吸收约70至约135m 2 / g; 约3至约20m 2 / g的BET表面积和至少约90的TAPPI亮度。

    Processes for preparing precipitated calcium carbonate compositions and the products thereof
    2.
    发明授权
    Processes for preparing precipitated calcium carbonate compositions and the products thereof 失效
    沉淀碳酸钙组合物的制备方法及其制备方法

    公开(公告)号：US06402824B1

    公开(公告)日：2002-06-11

    申请号：US09578470

    申请日：2000-05-26

    申请人： Gary M. Freeman ,  Randal A. Moritz ,  William J. Jones ,  Kurt H. Moller

    发明人： Gary M. Freeman ,  Randal A. Moritz ,  William J. Jones ,  Kurt H. Moller

    IPC分类号： C09C102

    CPC分类号： B01F3/20 ,  B01F3/1207 ,  B01F3/1221 ,  B01F3/2071 ,  B01F7/164 ,  C01F11/18 ,  C01F11/185 ,  C01P2004/61 ,  C01P2004/62 ,  D21H19/385

    摘要： Processes for making high quality PCC compositions, and the resulting PCC products thereof. A precipitated calcium carbonate (PCC) composition is prepared by a process comprising the step of wet media mill grinding an aqueous slurry of PCC made by carbonation of lime milk, with the grinding being done at a low solids content in a plurality of separate grinding stages, which can done while essentially free of the presence of organic dispersant. After the multi-stage wet grinding step, the ground PCC slurry is partially dewatered in the presence of an organic dispersant in a solid bowl centrifuge. Then, the partially dewatered PCC slurry is subjected, in the presence of an organic dispersant, to fluid shearing forces created in a rotor/stator type mixer. While these three steps are advantageously used together within a single PCC process flow for optimal effect, the individual steps also can be incorporated singly or in lesser combinations thereof into different PCC manufacturing schemes to beneficial effect. The resulting PCC compositions are endowed with reduced high-shear viscosity in aqueous slurry form at high solids content and contain PCC particles of narrower particle size distribution. PCC slurries are provided that are particularly well-suited for paper coatings applications including medium and low coating weight, woodfree paper coatings, although it has wider applicability and is by no means limited thereto. As another aspect, the additional cost otherwise associated with the use of evaporative-based dehydration procedures to increase the PCC solids content in a PCC slurry or associated with the adding of dry CaCO3 pigment to build slurry solids can be reduced or even eliminated by a facile made in a decanting operation within the inventive process flow.

    摘要翻译： 制备高质量PCC组合物的方法及其所得的PCC产品。 沉淀碳酸钙（PCC）组合物通过包括以下步骤的方法制备，所述方法包括湿法研磨研磨由石灰乳碳酸化制备的PCC的含水浆料的步骤，其中在多个分开的研磨阶段以低固含量进行研磨 ，其可以在基本上不含有机分散剂的情况下完成。 在多阶段湿法研磨步骤之后，将研磨的PCC浆料在有机分散剂存在下在固体碗式离心机中部分脱水。 然后，将部分脱水的PCC浆料在有机分散剂存在下进行转子/定子式混合机中产生的流体剪切力。 尽管这三个步骤有利地在单个PCC工艺流程中一起使用以获得最佳效果，但是各个步骤也可以单独地或以较小的组合并入不同的PCC制造方案中以产生有益的作用。 得到的PCC组合物以高固体含量赋予水性浆料形式的降低的高剪切粘度，并且含有较窄粒度分布的PCC颗粒。 提供了PCC浆料，其特别适用于包括中等和低涂层重量的无纸纸涂料的纸张涂料应用，尽管它具有更广泛的适用性，并不限于此。 另一方面，与使用基于蒸发的脱水方法相关联的增加PCC浆料中的PCC固体含量或与添加干燥的CaCO 3颜料相关以构建浆料固体的附加成本可以通过简便的方式减少甚至消除 在本发明工艺流程内的倾析操作中制成。

    Polymer structured clay pigment and method of preparing the same
    3.
    发明授权
    Polymer structured clay pigment and method of preparing the same 有权
    聚合物结构粘土颜料及其制备方法

    公开(公告)号：US6156117A

    公开(公告)日：2000-12-05

    申请号：US144872

    申请日：1998-09-01

    申请人： Gary M. Freeman ,  Sung-Tsuen Liu

    发明人： Gary M. Freeman ,  Sung-Tsuen Liu

    IPC分类号： C09C1/42 ,  C09C3/10 ,  D21H19/40 ,  C09C1/00 ,  C09C1/40

    CPC分类号： D21H19/40 ,  C09C1/42 ,  C09C3/10 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/22 ,  C01P2006/60 ,  C01P2006/82

    摘要： A method of preparing a polymer structured pigment slurry which comprises providing an anionic, aqueous slurry including a plurality of solid mineral particles, adding a low molecular weight, cationic polymer in an amount of less than about 0.20% by weight to the slurry and then adding a small amount of an inorganic dispersant to the polymer treated pigment slurry. The Malvern median particle size of the mineral particles treated with the polycationic polymer is less than about 20% larger than the Malvern median particle size of the untreated mineral particles.

    摘要翻译： 一种制备聚合物结构颜料浆料的方法，其包括提供包含多个固体矿物颗粒的阴离子水性浆料，向所述浆料中加入少于约0.20重量％的低分子量阳离子聚合物，然后加入 少量的无机分散剂用于聚合物处理的颜料浆料。 用聚阳离子聚合物处理的矿物颗粒的Malvern中值粒径小于未处理矿物颗粒的Malvern中值粒度的约20％。

    LOW VISIBILITY LANDING SYSTEM AND METHOD
    6.
    发明申请
    LOW VISIBILITY LANDING SYSTEM AND METHOD 有权
    低可见性着陆系统和方法

    公开(公告)号：US20120065817A1

    公开(公告)日：2012-03-15

    申请号：US13243698

    申请日：2011-09-23

    申请人： Robert S. Takacs ,  Gary M. Freeman ,  Glenn L. Connor

    发明人： Robert S. Takacs ,  Gary M. Freeman ,  Glenn L. Connor

    IPC分类号： G08G5/02

    CPC分类号： G05D1/0676 ,  G08G5/0021 ,  G08G5/025

    摘要： A low visibility landing system is provided for guiding aircraft on landing approaches. The low visibility landing system may aid a pilot during landing in low visibility conditions such that an aircraft may descend to lower altitudes without visual contact with the runway than is possible with other landing systems. The system may use various navigational systems to produce a hybrid signal that may be more stable than individual signals of those navigational systems. The hybrid signal is compared to a predetermined landing approach plan to determine the deviation of the aircraft from the landing approach plan and to provide guidance to the pilot to get the aircraft back onto the landing approach plan. The system may also use multiple navigational systems to perform checks on an operation of a primary navigational system to ensure that the primary navigational system is operating accurately.

    摘要翻译： 提供低能见度的着陆系统，用于在着陆进近时引导飞机。 低能见度着陆系统可以在低能见度条件下着陆时帮助飞行员，使得飞行器可以下降到较低的高度，而不是与跑道的视觉接触，而不是与其他着陆系统相同。 该系统可以使用各种导航系统来产生可能比那些导航系统的单个信号更稳定的混合信号。 将混合信号与预定的着陆方法计划进行比较，以确定飞机与着陆进近计划的偏差，并向飞行员提供指导以使飞机返回到着陆进近计划。 该系统还可以使用多个导航系统对主导航系统的操作执行检查，以确保主导航系统准确地操作。

    Papermaking method using one or more quaternized dialkanolamine fatty acid ester compounds to control opacity and paper product made thereby
    7.
    发明授权
    Papermaking method using one or more quaternized dialkanolamine fatty acid ester compounds to control opacity and paper product made thereby 有权
    使用一种或多种季铵化二烷醇胺脂肪酸酯化合物来控制不透明度的纸造纸方法和由此制成的纸制品

    公开(公告)号：US07935222B2

    公开(公告)日：2011-05-03

    申请号：US11071329

    申请日：2005-03-04

    申请人： Brian N. Brogdon ,  Gary M. Freeman ,  Thomas C. Friel ,  Scott W. Rosencrance

    发明人： Brian N. Brogdon ,  Gary M. Freeman ,  Thomas C. Friel ,  Scott W. Rosencrance

    IPC分类号： D21H21/14 ,  D21H21/26 ,  D21H17/14

    CPC分类号： D21H17/07 ,  D21H17/14 ,  D21H17/67 ,  Y10T428/254

    摘要： A method for making an opacity relevant grade paper or paperboard product, such as a communication type paper used for printing and writing applications, utilizes an effective amount of quaternized alkanolamine fatty acid ester compounds as an opacification aid to control the optical properties of the paper or paperboard product as a wet-end additive to a papermaking operation. Using the quaternized alkanolamine fatty acid ester compound can improve the opacity of the paper or paperboard product, maintain the opacity of the paper while reducing the use of other opacification aids, such as inorganic fillers and/or pigments, and allow for a reduction in paper grammage without a compromise in opacity. The improvements in paper optical properties are achieved without adversely affecting other characteristics of the paper product such as bulk value, tensile strength, tear index, and the like.

    摘要翻译： 用于制造不透明度相关等级纸或纸板产品的方法，例如用于印刷和书写应用的通信型纸张，利用有效量的季铵化烷醇胺脂肪酸酯化合物作为不透明度辅助剂来控制纸张的光学性能或 纸板产品作为造纸作业的湿法添加剂。 使用季铵化烷醇胺脂肪酸酯化合物可以改善纸或纸板产品的不透明度，保持纸张的不透明度，同时减少使用其它不透明助剂如无机填料和/或颜料，并允许纸张的还原 克服不透明度的妥协。 实现纸张光学性能的改进，而不会不利地影响纸张产品的其它特性，例如体积值，拉伸强度，撕裂指数等。

    Hydrous clay slurry mixture containing a silane-treated clay
    9.
    发明授权
    Hydrous clay slurry mixture containing a silane-treated clay 有权
    含硅烷处理粘土的含水泥浆混合物

    公开(公告)号：US06197105B1

    公开(公告)日：2001-03-06

    申请号：US09466883

    申请日：1999-12-20

    申请人： Gary M. Freeman ,  Carl J. Marshall, Jr. ,  Walter O. Lackey ,  Masao Onizawa

    发明人： Gary M. Freeman ,  Carl J. Marshall, Jr. ,  Walter O. Lackey ,  Masao Onizawa

    IPC分类号： C04B1410

    CPC分类号： C09C1/42 ,  B60C1/00 ,  B60C1/0025 ,  B60C13/04 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/19 ,  C01P2006/22 ,  C01P2006/60 ,  C04B20/1051 ,  C08K9/06 ,  Y10S152/12 ,  C04B14/106

    摘要： An effective production method for silane-treated clays having exceptional reinforcing effects with respect to rubber, and compositions using these silane-treated clays are offered. With the silane-treated clay production method, a functional silane is predispersed or emulsified in water by means of a surfactant in order to mix the functional silane with kaolin clay and thereby uniformly surface-treat the kaolin clay with the functional silane. The surfactant should preferably be a non-ionic surfactant with an HLB value in the range of 8-18. The silane-treated clay formed by surface-treating kaolin clay by means of these functional silanes characteristically contains low residual levels of the non-ionic surfactants. The functional silanes can be either vinyl or sulfur functional silanes. The silane treated clays are useful as fillers or extenders in rubber compositions, particularly those employing silicas and/or carbon blacks.

    摘要翻译： 提供了对于橡胶具有优异的增强效果的硅烷处理粘土的有效制备方法，以及使用这些硅烷处理的粘土的组合物。 通过硅烷处理的粘土生产方法，通过表面活性剂将功能性硅烷预先分散或在水中乳化，以将功能性硅烷与高岭土混合，从而用功能性硅烷均匀地表面处理高岭土。 表面活性剂应优选为HLB值在8-18范围内的非离子表面活性剂。 通过这些功能性硅烷表面处理高岭土形成的硅烷处理粘土特征在于含有低残留水平的非离子表面活性剂。 功能硅烷可以是乙烯基或硫官能硅烷。 硅烷处理的粘土可用作橡胶组合物中的填料或增量剂，特别是使用二氧化硅和/或炭黑的那些。