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1.发明授权Production of vinyl halide polymers with dialkyl, hydroxy phenyl alkanoic ester of polyhydric alcohols 失效用多元醇的二烷基羟基苯基链烷酸酯生产卤代乙烯基聚合物
公开(公告)号：US4324874A
公开(公告)日：1982-04-13
申请号：US195275
申请日：1980-10-08
摘要： The polymerization of a monomer component that comprises vinyl chloride in an aqueous medium in the presence of a free radical generating polymerization initiator is terminated by introducing into the polymerization reaction mixture when from 70% to 95% of the monomer component has been polymerized from 0.01% to 0.10% by weight, based on the weight of the monomer component, of a chain-terminating agent that is a dialkylhydroxyphenylalkanoic acid ester of a neopentyl polyhydric alcohol, such as pentaerythritol tetrakis-[3-(3,5-di-tert.butyl-4-hydroxyphenyl)propionate].
摘要翻译： 在产生自由基的聚合引发剂的存在下，在含水介质中包含氯乙烯的单体组分的聚合通过在聚合反应混合物中引入70％至95％的单体组分从0.01％ 为单体成分重量的0.10重量％的作为新戊基多元醇的二烷基羟基苯基链烷酸酯的链终止剂，例如季戊四醇四[3-（3,5-二叔丁基-4-羟基苯基） 丁基-4-羟基苯基）丙酸酯]。
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2.发明授权Process for the removal of vinyl chloride from polyvinyl chloride dispersions and latexes 失效从聚氯乙烯分散体和胶乳中除去氯乙烯的方法
公开(公告)号：US4226975A
公开(公告)日：1980-10-07
申请号：US739919
申请日：1976-11-08
CPC分类号： C08F6/003 , Y10T428/31819 , Y10T428/31859
摘要： Vinyl chloride is removed from polyvinyl chloride dispersions and latexes by adding to them from 2% to 8% by weight of a polar water-soluble organic compound that has a boiling point between about 50.degree. C. and 150.degree. C. and sparging the resulting mixtures with a gas, such as nitrogen, while they are maintained at subatmospheric pressure.
摘要翻译： 从聚氯乙烯分散体和胶乳中除去氯乙烯，通过向其中加入2至8重量％的沸点在约50℃至150℃之间的极性水溶性有机化合物，并将所得的 与气体（如氮气）混合，同时保持低于大气压。
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3.发明授权Process for the removal of vinyl chloride from aqueous slurries of vinyl chloride polymers 失效从氯乙烯聚合物的水性浆料中除去氯乙烯的方法
公开(公告)号：US4229569A
公开(公告)日：1980-10-21
申请号：US9328
申请日：1979-02-05
CPC分类号： C08F6/003
摘要： Vinyl chloride is removed from aqueous slurries prepared by the suspension polymerization of a monomer component that comprises vinyl chloride by heating the slurries at a temperature between 70.degree. C. and the boiling point of water at a pressure in the range of 30 mm Hg absolute to 3 atmospheres and removing the evolved vinyl chloride until the aqueous slurry contains less than 50 ppm and preferably less than 0.1 ppm of vinyl chloride, based on the weight of polymer in the slurry. The polymers that are recovered from the purified aqueous slurries contain less than 10 ppm, and in most cases less than 0.1 ppm of vinyl chloride.
摘要翻译： 将氯乙烯从含有氯乙烯的单体组分的悬浮聚合制备的水性浆液中除去，该混合物在70℃至70℃的压力下，在30℃至2000℃绝对压力下，将浆料加热至70℃， 除去放出的氯乙烯，直到含水浆料含有少于50ppm，优选小于0.1ppm的氯乙烯，基于浆料中聚合物的重量。 从纯化的水浆中回收的聚合物含有小于10ppm，在大多数情况下小于0.1ppm的氯乙烯。
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4.发明授权Process for the removal of vinyl chloride from polyvinyl chloride latexes and slurries with hydrocarbon compounds 失效从聚氯乙烯胶乳和含烃化合物的浆料中除去氯乙烯的方法
公开(公告)号：US4226976A
公开(公告)日：1980-10-07
申请号：US724806
申请日：1976-09-20
CPC分类号： C08F6/003
摘要： Vinyl chloride is removed from polyvinyl chloride dispersions, latexes, and slurries by sparging them with a gaseous organic compound, such as methane, while they are maintained at subatmospheric pressure.
摘要翻译： 氯乙烯通过在气体有机化合物（例如甲烷）下喷洒而从聚氯乙烯分散体，胶乳和浆料中除去，同时保持在低于大气压的压力下。
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5.发明授权Process for the removal of vinyl chloride from polyvinyl chloride latexes and slurries 失效从聚氯乙烯胶乳和浆料中除去氯乙烯的方法
公开(公告)号：US4226974A
公开(公告)日：1980-10-07
申请号：US761109
申请日：1977-01-21
CPC分类号： C08F6/003
摘要： Vinyl chloride is removed from polyvinyl chloride dispersions, latexes, and slurries by sparging them with an inorganic gas, such as air or ammonia, while they are maintained at subatmospheric pressure.
摘要翻译： 氯乙烯通过在无机气体（如空气或氨）下喷射而从聚氯乙烯分散体，胶乳和浆料中除去，同时保持在低于大气压的压力下。
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6.发明授权Manufacture of polyvinyl chloride of low vinyl chloride monomer content by treatment of wet polyvinyl chloride 失效通过处理湿聚氯乙烯制造低氯乙烯单体含量的聚氯乙烯
公开(公告)号：US3956249A
公开(公告)日：1976-05-11
申请号：US482114
申请日：1974-06-24
IPC分类号： C08F14/00 , C08F6/00 , C08F6/06 , C08F214/06 , C08F220/40
CPC分类号： C08F6/005
摘要： Vinyl chloride is removed from wet cakes that comprise a vinyl chloride polymer, vinyl chloride, and water by contacting the wet cakes with steam, preferably at atmospheric pressure and at a temperature in the range of 100.degree. to 125.degree.C.
摘要翻译： 通过使湿饼与蒸汽接触，优选在大气压和100至125℃的温度下将氯乙烯从包含氯乙烯聚合物，氯乙烯和水的湿饼中除去。
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公开(公告)号：US08505459B2
公开(公告)日：2013-08-13
申请号：US12986286
申请日：2011-01-07
IPC分类号： E01B27/00
摘要： An exemplary apparatus and method for applying a force to rails of a track is disclosed. The apparatus has a device with at least one first weight and at least one second weight rotatably mounted about a horizontal shaft which has an axis which is essentially perpendicular to the longitudinal axis of the rails. A power source is provided to drive the rotation of the at least one first weight and the at least one second weight at different revolutions per second. The rotation of the at least one first weight and the at least one second weight creates a vertical force which has a larger downward component as compared to an upward component of the vertical force.
摘要翻译： 公开了一种用于向轨道的轨道施加力的示例性装置和方法。 该装置具有装置，该装置具有至少一个第一重量和至少一个第二重量，该第二重量可围绕水平轴可旋转地安装，该水平轴具有基本上垂直于轨道的纵向轴线的轴线。 提供电源以驱动所述至少一个第一重物和所述至少一个第二重量的旋转以不同的每秒转数。 所述至少一个第一重物和所述至少一个第二重物的旋转产生与垂直力的向上分量相比具有较大向下分量的垂直力。
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公开(公告)号：US08245646B1
公开(公告)日：2012-08-21
申请号：US12359742
申请日：2009-01-26
CPC分类号： E01B27/16
摘要： A dual tamper vehicle is provided. The dual tamper vehicle has a single articulated frame assembly having two sets of tampers. The articulated frame assembly is, essentially, a bifurcated vehicle having a forward, first vehicle and a trailing, second vehicle joined by a primary coupling having three axes of rotation. The primary coupling having three axes of rotation allows the two vehicles to roll, pitch, and yaw relative to each other thereby allowing the single, long rail bifurcated vehicle to travel over a railroad.
摘要翻译： 提供双重篡改车辆。 双重篡改车辆具有单个铰接框架组件，其具有两组篡改。 铰接框架组件基本上是分叉车辆，其具有通过具有三个旋转轴线的主联接器连接的前部，第一车辆和后部第二车辆。 具有三个旋转轴的主联轴器允许两个车辆相对于彼此滚动，俯仰和偏转，从而允许单个长的轨道分叉车辆在铁路上行驶。
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公开(公告)号：US6088426A
公开(公告)日：2000-07-11
申请号：US85485
申请日：1998-05-27
申请人： Robert S. Miller
发明人： Robert S. Miller
IPC分类号： H01J35/10
CPC分类号： H01J35/10 , H01J2235/1013
摘要： An x-ray target assembly is formed by passing a rotary shaft through the center hole of a graphite disk such that the back surface of the disk rests on a flange part of the rotary shaft and the front surface is contacted by a nut which engages with the tip of the rotary shaft. Annular brazing materials are placed adjacent contact areas where the disk contacts the rotary shaft and the nut such that braze joints are made to secure the disk with the nut and the rotary shaft. Grooves may be formed on the surfaces of the nut and the flange part of the rotary shaft which contact the disk such that the brazing material can more efficiently fill the gaps between contacting surfaces.
摘要翻译： 通过使旋转轴通过石墨盘的中心孔而形成x射线靶组件，使得盘的后表面位于旋转轴的凸缘部分上，并且前表面由与螺钉啮合的螺母接触 旋转轴的尖端。 环形钎焊材料放置在与盘接触旋转轴和螺母的接触区域附近，使得钎焊接头被固定在具有螺母和旋转轴的盘上。 沟槽可以形成在螺母的表面上，并且与旋转轴的凸缘部分接触，使得钎焊材料可以更有效地填充接触表面之间的间隙。
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公开(公告)号：US08433462B2
公开(公告)日：2013-04-30
申请号：US12827596
申请日：2010-06-30
IPC分类号： G05D1/00
摘要： A drone vehicle for performing maintenance on a railway system is provided. A drone vehicle control system is structured to utilize tie position data to position a drone vehicle workhead over at least a portion of a respective tie. The drone vehicle control system is further structured to actuate the drone vehicle workhead. The drone vehicle may be controlled by a drone vehicle control system linked, preferably by wireless communications, to a lead vehicle and a lead vehicle control system. The lead vehicle control system and the drone vehicle control system are structured to communicate with each other, with the lead vehicle control system providing the tie position data to the drone vehicle control system.
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