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131. 发明授权

US4221771A Preparation of dawsonite 失效
标题翻译：片钠铝石的制备
公开(公告)号：US4221771A
公开(公告)日：1980-09-09
申请号：US32623
申请日：1979-04-23
申请人： Peter van der Heem
发明人： Peter van der Heem
IPC分类号： C01F7/00 , C01B31/24
CPC分类号： C01F7/004
摘要： Dawsonite is formed by reacting alumina trihydrate with sodium bicarbonate in a sodium carbonate solution under pressure at a temperature between 100.degree. and 200.degree. C. for 30 minutes to 4 hours. The alumina trihydrate concentration is no greater than 86 grams per liter. The sodium carbonate concentration is between 150 and 300 grams per liter. Sufficient sodium bicarbonate is added to react with all the alumina trihydrate according to the equation:2Al(OH).sub.3 +2NaHCO.sub.3 =Na.sub.2 O:Al.sub.2 O.sub.3 :2CO.sub. 2 :2H.sub.2 O+2H.sub.2 OThe resulting dawsonite is of high purity.
摘要翻译：片钠铝石是通过使三水合氧化铝与碳酸氢钠在碳酸钠溶液中在100-2200℃的压力下反应30分钟至4小时而形成的。三水合氧化铝浓度不大于86克/升。碳酸钠浓度为150-300克/升。加入足够的碳酸氢钠以与所有的三水合氧化铝反应，按照下列方程：2Al（OH）3 + 2NaHCO3 = Na2O :Al2O3:2CO2:H2O + 2H2O所得的片钠钙石具有高纯度。

132. 发明授权

US4191742A Amorphous precipitated siliceous pigments and methods for their production 失效
标题翻译：无定形沉淀硅质颜料及其制备方法
公开(公告)号：US4191742A
公开(公告)日：1980-03-04
申请号：US854165
申请日：1977-11-23
申请人： Satish K. Wason , Robert K. Mays
发明人： Satish K. Wason , Robert K. Mays
IPC分类号： A61K8/25 , A61Q11/00 , C01B33/193 , A61K7/16
CPC分类号： A61K8/25 , A61Q11/00 , C01B33/193 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/19
摘要： A method for producing precipitated silica products having a unique combination of physical and chemical properties is disclosed. The products are produced by acidulating a solution of an alkali metal silicate with an acid under carefully controlled precipitation conditions. In accordance with the method, at least a portion of the alkali metal silicate solution theoretically required to react with said acid is initially charged to the reaction vessel. Thereafter, the remaining silicate solution and the acid are simultaneously added to the reaction vessel in a manner to control the alkalinity of the reaction medium. By controlling the percent of the silicate solution initially charged to the reaction vessel, silicas having predetermined properties can be obtained. Properties of the products include low wet cake moisture content, low structure, low oil absorption, high abrasiveness, and low void volume. The products can be used as abrasive and polishing agents in dentifrice compositions. In one particular advantageous embodiment, an adduct material, such as aluminum, is added to control the refractive index of the product.
摘要翻译：公开了具有物理和化学特性的独特组合的沉淀二氧化硅产品的制造方法。产品是通过在精心控制的沉淀条件下用酸酸化碱金属硅酸盐的溶液来制备的。根据该方法，理论上要求与所述酸反应的至少一部分碱金属硅酸盐溶液最初被加入到反应容器中。此后，以控制反应介质的碱度的方式将剩余的硅酸盐溶液和酸同时加入到反应容器中。通过控制最初装入反应容器的硅酸盐溶液的百分比，可以获得具有预定特性的二氧化硅。产品性能包括湿滤饼含水率低，结构低，吸油量低，磨损性高，空隙体积小。该产品可用作洁牙剂组合物中的磨料和抛光剂。在一个特别有利的实施方案中，加入加合物材料，例如铝，以控制产品的折射率。

133. 发明授权

US4186224A Record member and encapsulated clay for use therein 失效
标题翻译：记录成分和胶囊粘土用于其中
公开(公告)号：US4186224A
公开(公告)日：1980-01-29
申请号：US809955
申请日：1977-06-27
申请人： Thomas A. Grillo
发明人： Thomas A. Grillo
IPC分类号： B41M5/155 , B41M5/22
CPC分类号： B41M5/155 , Y10T428/254 , Y10T428/2993 , Y10T428/2998
摘要： An improved record member is disclosed of the type having a sensitized surface including an oil soluble acid-reactant organic polymer and a colorless acid type mineral such as kaolin clay. Sensitized surfaces of the foregoing type develop distinctive colors when contacted with a normally colorless oil solution containing two chromogenic materials which react, respectively in different time sequence, with the polymer and acid mineral. In the improved member kaolin particles are encapsulated within the said polymer material, whereby said sensitized surface possesses better and more uniform marking qualities. A method for preparation of the coating composition utilized in the member is also set forth.
摘要翻译：公开了具有包含油溶性酸 - 反应物有机聚合物和无色酸型矿物如高岭土的致敏表面的类型的改进的记录构件。当与通常无色的含有两种显色材料的油溶液接触时，上述类型的敏化表面分别与聚合物和酸性矿物分别以不同的时间顺序反应。在改进的构件中，高岭土颗粒被包封在所述聚合物材料内，由此所述致敏表面具有更好和更均匀的标记品质。还阐述了用于制备在该构件中使用的涂料组合物的方法。

134. 发明授权

US4159296A Process for producing pelletized kaolin clay 失效
标题翻译：生产造粒高岭土的方法
公开(公告)号：US4159296A
公开(公告)日：1979-06-26
申请号：US852900
申请日：1977-11-18
申请人： Timothy G. Florea , Charles R. Price
发明人： Timothy G. Florea , Charles R. Price
IPC分类号： B01J2/10 , B28C1/00 , B01J2/12
CPC分类号： B01J2/10 , B28C1/003
摘要： A process for making densified kaolin clay pellets of high bulk density, good handling and bulk flow properties, and low moisture content is disclosed. The process consists essentially of mixing substantially dry kaolin clay with water to bring the total moisture content of the finely divided kaolin clay to from about 17% to about 26% by weight based on the weight of said dry kaolin clay during mixing in a first pin mixer, followed by micropulverization, and subsequent pelletization by pin mixing. The pellets are dried to 1% or less moisture content by weight based on the weight of dry kaolin clay.
摘要翻译：公开了一种制造高堆积密度，良好的操作性和体积流动特性以及低含水量的致密化高岭土颗粒的方法。该方法基本上包括将基本上干燥的高岭土与水混合以使细碎高岭土中的总水分含量为约17％至约26％（重量），基于所述干燥高岭土在混合过程中的重量在第一销混合器，随后进行微粉碎，然后通过针混合造粒。基于干高岭土的重量将颗粒干燥至1重量％或更少的水分含量。

135. 发明授权

US4159280A Therapeutic dentifrices in unlined container and methods 失效
公开(公告)号：US4159280A
公开(公告)日：1979-06-26
申请号：US826901
申请日：1977-08-24
申请人： Satish K. Wason
发明人： Satish K. Wason
IPC分类号： A61K8/21 , A61K20060101 , A61K8/19 , A61K8/23 , A61K8/25 , A61Q11/00 , C09C1/30 , C09K3/14 , C23F11/18 , A61K7/18 , B65D81/24 , B65D81/26 , B65D85/14
CPC分类号： A61Q11/00 , A61K8/19 , A61K8/21 , A61K8/25 , C09C1/30 , A61K2800/526 , C01P2002/02 , C01P2004/50 , C01P2004/61 , C01P2006/10 , C01P2006/12 , C01P2006/19 , C01P2006/80
摘要： The corrosion and staining of unlined aluminum tube surfaces by dentifrices such as toothpastes, particularly when the dentifrices contain therapeutic agents, is substantially prevented by incorporation into the dentifrice of a controlled amount of an alkaline earth metal ion such as calcium ion, in the range of 0.005-0.2 weight percent, and preferably in the range of 0.005-0.070 weight percent of the dentifrice. The alkaline earth metal may be provided from any water soluble alkaline earth metal salt or as a reaction product of the alkaline earth metal salt with an amorphous silica abrasive and/or thickener.

136. 发明授权

US4158690A Control of carbon black densification 失效
公开(公告)号：US4158690A
公开(公告)日：1979-06-19
申请号：US879321
申请日：1978-02-21
申请人： Charles R. Price , Jimmy J. Hines , Ronald L. Howell
发明人： Charles R. Price , Jimmy J. Hines , Ronald L. Howell
IPC分类号： C09C1/56 , C09C1/58 , B01J2/12
CPC分类号： C09C1/58 , C09C1/56 , C01P2006/19 , C01P2006/22
摘要： A method of controlling the bulk or pour density of carbon black without altering its rubber reinforcing properties, by wet micropulverizing prior to pin mixing.

137. 发明授权

US4158682A Control of carbon black densification 失效
标题翻译：控制炭黑致密化
公开(公告)号：US4158682A
公开(公告)日：1979-06-19
申请号：US834853
申请日：1977-09-19
申请人： Charles R. Price , Jimmy J. Hines , Ronald L. Howell
发明人： Charles R. Price , Jimmy J. Hines , Ronald L. Howell
IPC分类号： C09C1/56 , C09C1/58 , B01J2/10
CPC分类号： C09C1/56 , C09C1/58 , C01P2006/19
摘要： A method of controlling the bulk or pour density of carbon black without altering its rubber reinforcing properties, by wet micropulverizing prior to pin mixing.
摘要翻译：在引脚混合之前通过湿法微粉化来控制炭黑的体积或倾倒密度而不改变其橡胶增强性能的方法。

138. 发明授权

US4138471A Process for reducing the polycyclic aromatic hydrocarbon content of carbon black 失效
标题翻译：降低炭黑多环芳烃含量的方法
公开(公告)号：US4138471A
公开(公告)日：1979-02-06
申请号：US774091
申请日：1977-03-03
申请人： Trevor G. Lamond , John L. Wells
发明人： Trevor G. Lamond , John L. Wells
IPC分类号： C09C1/56 , C09C1/58 , C01B31/00 , C01B31/02
CPC分类号： C09C1/58 , C09C1/56 , C01P2006/12
摘要： The amount of polycyclic aromatic hydrocarbons on the surface of a carbon black can be reduced below 2 ppb by heat treating the carbon black in a fluidized bed. Dried furnace carbon black pellets are charged in a fluid bed unit and preheated. The pellets are then fluidized with air, with the temperature of the bed between 1150.degree. F and 1850.degree. F for 5 to 40 minutes. The carbon black is then quenched and recovered.
摘要翻译：通过在流化床中热处理炭黑，炭黑表面上的多环芳烃的量可以降低到低于2ppb。将干炉炭黑颗粒装入流化床单元并预热。然后将颗粒用空气流化，床的温度在1150°F至1850°F之间5至40分钟。然后将炭黑淬灭并回收。

139. 发明授权

US4088741A Carbon black process 失效
标题翻译：炭黑工艺
公开(公告)号：US4088741A
公开(公告)日：1978-05-09
申请号：US758895
申请日：1977-01-13
申请人： Robert B. Takewell
发明人： Robert B. Takewell
IPC分类号： C09C1/50 , C01B31/02 , C09C1/48
CPC分类号： C09C1/50
摘要： Methods are disclosed to produce carbon black by diluting the concentration of reactive species by the addition of substantially inert gases to the reactive gas stream prior to the termination of particle growth.
摘要翻译：公开了通过在颗粒生长终止之前通过向反应性气体流中加入基本惰性的气体来稀释反应性物质的浓度来产生炭黑的方法。

140. 发明授权

US4050869A Apparatus for agglomerating powders 失效
标题翻译：用于凝结粉末的装置
公开(公告)号：US4050869A
公开(公告)日：1977-09-27
申请号：US668120
申请日：1976-03-18
申请人： Robert B. Takewell , Paul W. Brandon , Paul R. Odom
发明人： Robert B. Takewell , Paul W. Brandon , Paul R. Odom
IPC分类号： B01J2/12 , B29B1/02
CPC分类号： B01J2/12
摘要： Apparatus for agglomerating powders and non-flowing fine particle minerals such as clay, silicas, and silicates involving means for establishing a minimum level of wetting agent content in the material to be agglomerated, a rotatably mounted motor driven drum for tumbling the material to be agglomerated over itself, spray nozzles located within the drum to add additional wetting liquid to the material within the drum, and conveying means for passing the material into the drum and discharge means for removing the agglomerated powder, which is now formed into pellets of an advantageous pellet size distribution, therefrom. The spray nozzles are situated to spray the wetting agent onto the material at the curl thereof. The establishing of a minimum level of wetting agent content in the powder, preferably in the range of 1-1/2% to 5%, is achieved either by incomplete drying of the material during wet processing or by the application of a wetting agent prior to introduction into the drum.
摘要翻译：用于凝结粉末和不流动的细颗粒矿物如粘土，二氧化硅和硅酸盐的装置，其涉及用于在待凝聚的材料中建立最低水平的润湿剂含量的装置，用于滚动待凝聚的材料的可旋转地安装的电动滚筒自身喷涂位于滚筒内的喷嘴，以向滚筒内的材料添加额外的润湿液体，以及用于将材料通入滚筒中的输送装置和用于除去附聚粉末的排出装置，该装配粉末现在形成为有利颗粒的颗粒尺寸分布。喷嘴位于将润湿剂在其卷曲上喷涂到材料上。优选在1-1 / 2％至5％的范围内建立粉末中最低水平的润湿剂含量，可以通过在湿法加工过程中材料的不完全干燥或通过在润湿剂之前施加润湿剂来实现引入滚筒。

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