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1. 发明授权

US06184408B2 Method for preparation of hydrophobic precipitated silica 有权
标题翻译：疏水性沉淀二氧化硅的制备方法
公开(公告)号：US06184408B2
公开(公告)日：2001-02-06
申请号：US09299863
申请日：1999-04-28
申请人： Gary Thomas Burns , Qin Deng , James Richard Hahn , Thomas G. Krivak , Timothy A. Okel , Clifford Carlton Reese
发明人： Gary Thomas Burns , Qin Deng , James Richard Hahn , Thomas G. Krivak , Timothy A. Okel , Clifford Carlton Reese
IPC分类号： C07F708
CPC分类号： C09C1/3081 , C01B33/193 , C01P2006/12 , C01P2006/90
摘要： A method for the preparation of hydrophobic precipitated silica. The method comprises contacting an aqueous suspension of a hydrophilic precipitated silica with (1) a catalytic amount of an acid and (2) an organosilicon compound in the presence of (3) a water-miscible organic solvent in an amount sufficient to facilitate reaction of the hydrophilic precipitated silica with the organosilicon compound to form a hydrophobic precipitated silica.
摘要翻译：疏水性沉淀二氧化硅的制备方法。该方法包括在（3）水混溶性有机溶剂存在下使亲水沉淀二氧化硅的水性悬浮液与（1）催化量的酸和（2）有机硅化合物接触，其量足以促进亲水沉淀二氧化硅与有机硅化合物形成疏水性沉淀二氧化硅。

2. 发明授权

US5412018A Silicone rubber reinforced with reinforced precipitated silica 失效
标题翻译：硅橡胶用增强沉淀二氧化硅增强
公开(公告)号：US5412018A
公开(公告)日：1995-05-02
申请号：US741921
申请日：1991-08-08
申请人： Thomas G. Krivak , Timothy A. Okel , Melvin P. Wagner
发明人： Thomas G. Krivak , Timothy A. Okel , Melvin P. Wagner
IPC分类号： C01B33/12 , C01B33/187 , C01B33/193 , C08K3/36 , C08L83/04 , C09C1/30 , C08J5/10 , C08K3/34
CPC分类号： B82Y30/00 , C01B33/193 , C08K3/36 , C09C1/30 , C09C1/3081 , C01P2002/02 , C01P2004/04 , C01P2004/50 , C01P2004/61 , C01P2004/64 , C01P2006/10 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/17 , C01P2006/80 , C01P2006/82 , C01P2006/90
摘要： Elastomeric compositions contain crosslinked poly(diorganosiloxane) and reinforced precipitated silica having, on a coating-free and impregnant-free basis, a surface area of from about 220 to about 340 square meters per gram, a pore diameter at the maximum of the volume pore size distribution function of from about 9 to about 20 nanometers, and a total intruded volume of from about 2.6 to about 4.4 cubic centimeters per gram.
摘要翻译：弹性组合物含有交联的聚（二有机硅氧烷）和增强的沉淀二氧化硅，其以无涂层和无浸剂的形式具有约220至约340平方米/克的表面积，体积孔的最大孔径尺寸分布函数为约9至约20纳米，总入侵体积为约2.6至约4.4立方厘米/克。

3. 发明授权

US5094829A Reinforced precipitated silica 失效
标题翻译：增强二氧化硅
公开(公告)号：US5094829A
公开(公告)日：1992-03-10
申请号：US541679
申请日：1990-06-21
申请人： Thomas G. Krivak , Timothy A. Okel , Melvin P. Wagner
发明人： Thomas G. Krivak , Timothy A. Okel , Melvin P. Wagner
IPC分类号： C01B33/12 , C01B33/187 , C01B33/193 , C08K3/36 , C08L83/04 , C09C1/30
CPC分类号： B82Y30/00 , C01B33/193 , C08K3/36 , C09C1/30 , C09C1/3081 , C01P2002/02 , C01P2004/04 , C01P2004/50 , C01P2004/61 , C01P2004/64 , C01P2006/10 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/17 , C01P2006/80 , C01P2006/82 , C01P2006/90
摘要： Reinforced precipitated silica having, on a coating-free and impregnant-free basis, a surface area of from about 220 to about 340 square meters per gram, a pore diameter at the maximum of the volume pore size distribution function of from about 9 to about 20 nanometers, and a total intruded volume of from about 2.6 to about 4.4 cubic centimeters per gram, is produced by a process wherein precipitated silica is heavily reinforced using a multiplicity of precipitation and aging steps.
摘要翻译：在无涂层和无浸剂的基础上，具有约220至约340平方米/克的表面积的增强沉淀二氧化硅，体积孔径分布函数的最大孔径为约9至约 20纳米，总入侵体积约为2.6至约4.4立方厘米/克，通过沉淀二氧化硅使用大量沉淀和老化步骤大量增强的方法生产。

4. 发明授权

US5888467A Amorphous precipitated silica characterized by high dispersion in cured organic rubber compositions 失效
标题翻译：其特征在于固化的有机橡胶组合物中分散性高的无定形沉淀二氧化硅
公开(公告)号：US5888467A
公开(公告)日：1999-03-30
申请号：US956504
申请日：1997-10-23
申请人： Harold E. Swift , Thomas G. Krivak , Laurence E. Jones
发明人： Harold E. Swift , Thomas G. Krivak , Laurence E. Jones
IPC分类号： C01B33/193 , C08K3/36 , C01B33/12
CPC分类号： C01B33/193 , C08K3/36 , C01P2002/02 , C01P2004/51 , C01P2004/61 , C01P2006/12 , C01P2006/14 , C01P2006/16
摘要： Amorphous precipitated silica is characterized by a standard white area of less than 0.8 percent. The low standard white area is a characteristic of the silica which is indicative of high (i.e., very effective) dispersion when the silica is incorporated into organic rubber compositions which are cured.Cured organic rubber compositions comprising amorphous precipitated silica exhibit low white areas which indicate high dispersion of the silica in the compositions.
摘要翻译：无定形沉淀二氧化硅的特征在于标准白色面积小于0.8％。低标准白色区域是二氧化硅的特征，当将二氧化硅掺入固化的有机橡胶组合物中时，其表现出高的（即非常有效的）分散体。包含无定形沉淀二氧化硅的固化有机橡胶组合物表现出低的白色区域，这表明二氧化硅在组合物中的高分散性。

5. 发明授权

US5605569A Precipitated silica having high sodium sulfate content 失效
标题翻译：具有高硫酸钠含量的沉淀二氧化硅
公开(公告)号：US5605569A
公开(公告)日：1997-02-25
申请号：US555552
申请日：1995-11-08
申请人： James L. Boyer , Thomas G. Krivak , Harold E. Swift , Robert C. Wang
发明人： James L. Boyer , Thomas G. Krivak , Harold E. Swift , Robert C. Wang
IPC分类号： H01M2/16 , H01M10/10 , C04B14/04 , C01B33/12
CPC分类号： H01M2/1653 , H01M10/10 , Y02P70/54
摘要： Particles comprising particulate amorphous precipitated silica in association with from 5 to 10 percent by weight sodium sulfate and less than 10 percent by weight water, wherein the percentages are based on the weight of the silica, the sodium sulfate, and the water, which particles have a BET surface area of from 100 to 300 m.sup.2 /g, a total intruded volume from 1.8 to 3.6 cm.sup.3 /g, and a DBP oil absorption of from 180 to 320 cm.sup.3 /100 g, may be employed in microporous battery separators to introduce all or a portion of the desired sodium sulfate to the battery electrolyte. Moreover the enhanced amount of sodium sulfate enhances silica characteristics and battery separator production.
摘要翻译：包含颗粒状无定形沉淀二氧化硅与5至10重量％硫酸钠和小于10重量％水的颗粒，其中百分比基于二氧化硅，硫酸钠和水的重量，该颗粒具有 100至300m2 / g的BET表面积，1.8至3.6cm3 / g的总入侵体积和180至320cm 3 / 100g的DBP吸油量可用于微孔电池隔板中以引入全部或一部分所需的硫酸钠至电池电解质。此外，硫酸钠的增加量增加了二氧化硅特性和电池隔膜的生产。

6. 发明授权

US4849297A Article having a corrosion inhibiting coating 失效
标题翻译：具有腐蚀抑制涂层的物品
公开(公告)号：US4849297A
公开(公告)日：1989-07-18
申请号：US304399
申请日：1989-01-30
申请人： J. Douglas Mansell , Laurence E. Jones , Harlan B. Johnson , Thomas G. Krivak , Dennis W. Carson
发明人： J. Douglas Mansell , Laurence E. Jones , Harlan B. Johnson , Thomas G. Krivak , Dennis W. Carson
IPC分类号： C09C1/28 , C09D5/08
CPC分类号： C09C1/28 , C09D5/084 , C01P2002/02 , C01P2004/50 , C01P2004/60 , C01P2004/61 , C01P2004/80 , C01P2006/12 , C01P2006/19 , C01P2006/40 , C01P2006/80 , C01P2006/90 , Y10T428/31678
摘要： Corrosion inhibiting calcium-containing amorphous precipitated silica is described. The silica is prepared by admixing simultaneously in a reactor aqueous alkali metal silicate, e.g., sodium silicate, acidifying agent, e.g., hydrochloric acid, and a water-soluble source of calcium, e.g., calcium chloride. The product contains from 6 to 9 weight percent calcium (as CaO). The silica product may be incorporated into a coating composition used for corrodible metallic surfaces.
摘要翻译：描述了抑制腐蚀性钙的无定形沉淀二氧化硅。二氧化硅通过在反应器中碱金属硅酸盐例如硅酸钠，酸化剂，例如盐酸和钙的水溶性来源例如氯化钙同时混合来制备。该产品含有6至9重量％的钙（如CaO）。二氧化硅产品可以掺入用于可腐蚀金属表面的涂料组合物中。

7. 发明授权

US07135429B2 Attrition resistant carrier product 失效
公开(公告)号：US07135429B2
公开(公告)日：2006-11-14
申请号：US10155446
申请日：2002-05-24
申请人： Narayan K. Raman , Thomas G. Krivak , Robert C. Dilmore , Paul A. Beauregard
发明人： Narayan K. Raman , Thomas G. Krivak , Robert C. Dilmore , Paul A. Beauregard
IPC分类号： B01J21/08 , B01J21/12 , B01J21/14
CPC分类号： B01J20/28016 , B01J20/103 , B01J20/28004 , B01J20/2803 , B01J20/28057 , B01J21/08 , B01J37/0009
摘要： The present invention is directed to an attrition resistant carrier product such as silica. Further, this invention is directed to the use of a binder to improve the attrition resistance or reduce the friability of a carrier product such as silica. In an embodiment, the median particle size is from 125 to 300 microns. Selection of the binder is such that the presence and/or addition of the binder does not result in substantial modification of the physical properties of the silica. Suitable binders include Group I and Group II silicates, Group I and Group II aluminates, and mixtures thereof, as identified by the Period Table of Elements.

8. 发明授权

US5911963A Amorphous precipitated silica having a low proportion of small pores 失效
标题翻译：具有低比例小孔的无定形沉淀二氧化硅
公开(公告)号：US5911963A
公开(公告)日：1999-06-15
申请号：US439731
申请日：1995-05-12
申请人： Thomas G. Krivak , Larry E. Jones
发明人： Thomas G. Krivak , Larry E. Jones
IPC分类号： C01B33/193 , C08K3/36 , C01B33/143 , C01B33/14
CPC分类号： C01B33/193 , C08K3/36 , C01P2002/02 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/17 , C01P2006/20
摘要： Amorphous precipitated silica having a low proportion of small pores as evidenced by low Sears surface areas are useful as reinforcing pigments for various rubbers.
摘要翻译：具有低比例小孔的无定形沉淀二氧化硅，由低Sears表面积证明可用作各种橡胶的增强颜料。

9. 发明授权

US5030286A High solids aqueous silica slurry 失效
标题翻译：高固体含水二氧化硅浆液
公开(公告)号：US5030286A
公开(公告)日：1991-07-09
申请号：US396402
申请日：1989-08-14
申请人： Roger A. Crawford , Thomas G. Krivak , Patrick G. Malloy , Da-Hung Yang
发明人： Roger A. Crawford , Thomas G. Krivak , Patrick G. Malloy , Da-Hung Yang
IPC分类号： C01B33/14 , C01B33/141 , C01B33/187 , C08K3/36 , C08L33/04 , C08L33/06 , D21H19/40
CPC分类号： C01B33/1417 , D21H19/40 , Y10S423/15
摘要： Described are high solids aqueous slurries of amorphous precipitated hydrated silica, which slurries are of relatively low viscosity. The slurry typically contains from about 40 to about 60 weight percent of hydrated precipitated high structure silica. The viscosity of the high solids slurry is less than about 1000 centipoises. Processes for producing the aqueous high solids silica slurry are disclosed. In one embodiment, a wet cake of amorphous precipitated hydrated silica is liquified and the liquified wet cake charged to a high intensity mill wherein the silica is wet milled until the median agglomerate particle size of the silica is between about 0.3 and about 3 microns. In a further embodiment, finely-divided dry amorphous precipitated silica is slurried in a dispersion mill to the desired solids level and this slurry charged to a high-intensity mill and wet milled therein until the aforesaid agglomerate particle size range is attained. The resulting high solids slurry can be shipped in bulk with only mild agitation to prevent setting. A dispersant may also be added to the slurry prior to milling to retard settling of the silica.
摘要翻译：描述了无定形沉淀的水合二氧化硅的高固体含水浆料，其中浆料的粘度相对较低。浆料通常含有约40至约60重量％的水合沉淀高结构二氧化硅。高固体浆料的粘度小于约1000厘泊。公开了用于生产含水高固体二氧化硅浆料的方法。在一个实施方案中，将无定形沉淀的水合二氧化硅的湿滤饼液化并将液化的湿滤饼装入高强度研磨机中，其中二氧化硅被湿磨，直到二氧化硅的中值附聚物粒度在约0.3至约3微米之间。在另一个实施方案中，将细碎的干无定形沉淀二氧化硅在分散研磨机中浆化至所需的固体含量，并将该浆料装入高强度研磨机中并在其中湿磨，直到达到上述附聚物粒度范围。所得到的高固体浆料可以散装运输，只需轻微的搅拌即可防止固化。在研磨之前还可以将分散剂加入到浆料中以阻止二氧化硅沉降。

10. 发明授权

US4617294A Animal feed supplement 失效
标题翻译：动物饲料补充
公开(公告)号：US4617294A
公开(公告)日：1986-10-14
申请号：US725444
申请日：1985-04-22
申请人： Thomas G. Krivak , Stanley A. Heimburger , James T. Dew
发明人： Thomas G. Krivak , Stanley A. Heimburger , James T. Dew
IPC分类号： A01C5/06 , A23K1/16 , A23K1/175 , A61K9/14 , A61K9/16 , A61K31/355 , A61K31/455 , A61K31/68
CPC分类号： A01C5/068 , A23K20/174 , A23K20/28 , A61K9/143 , A61K9/1611
摘要： Free flowing, substantially dust-free, dense granular amorphous precipitated silica having a principal particle size of between about 0.14 millimeters and about 0.84 millimeters are described. This material is particularly suitable as an inert carrier for water-soluble and fat soluble nutritional supplements, e.g., vitamins, which are added to feeds for livestock.
摘要翻译：描述了主要颗粒尺寸在约0.14毫米至约0.84毫米之间的自由流动的，基本上无尘的，致密的颗粒状无定形沉淀二氧化硅。该材料特别适合作为水溶性和脂溶性营养补充剂（例如维生素）的惰性载体，其被添加到家畜饲料中。

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