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公开(公告)号：US4038259A
公开(公告)日：1977-07-26
申请号：US581332
申请日：1975-05-27
CPC分类号： C08G75/0254
摘要： A method is provided for producing p-phenylene sulfide polymers by contacting a p-dihalobenzene, an alkali metal sulfide, an alkali metal carboxylate, an organic amide, and an alkali metal carbonate at polymerization conditions. The use of an alkali metal carbonate in addition to the other compounds contacted to form a composition results in p-phenylene sulfide polymers of higher molecular weight than produced without the alkali metal carbonate, as evidenced by higher inherent viscosity and lower melt flow of the polymer than produced by compared methods.
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公开(公告)号：US4089847A
公开(公告)日：1978-05-16
申请号：US671773
申请日：1976-03-30
CPC分类号： C08G75/0254
摘要： A method is provided in the production of an arylene sulfide polymer by employing a p-dihalobenzene, optionally together with a minor amount of a polyhalo aromatic compound having more than two halogen substituents per molecule; an alkali metal sulfide; an alkali metal carboxylate; a base selected from alkali metal hydroxides and alkali metal carbonates; and an organic amide using a profile of selected temperature ranges within the range of polymerization reaction temperature for the process which results in a polymer of lower melt flow than that of the polymer produced when one polymerization temperature is used throughout the polymerization stage.
摘要翻译： 提供了通过使用对二卤代苯，任选地与少量每分子具有多于两个卤素取代基的多卤代芳族化合物一起生产亚芳基硫醚聚合物的方法; 碱金属硫化物; 碱金属羧酸盐; 选自碱金属氢氧化物和碱金属碳酸盐的碱; 和使用在聚合反应温度范围内的选定温度范围的有机酰胺，该聚合反应温度导致聚合物的熔体流动性低于在整个聚合阶段使用一个聚合温度时产生的聚合物。
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公开(公告)号：US4038263A
公开(公告)日：1977-07-26
申请号：US581343
申请日：1975-05-27
CPC分类号： C08G75/0254
摘要： A method by which p-phenylene sulfide polymers are produced by admixing p-dihalobenzene, an alkali metal sulfide, an organic amide, a lithium halide, and optionally, a base, at polymerization conditions thereby producing a polymer of higher molecular weight as evidenced by lower melt flow and higher inherent viscosity than is obtained without the addition of the lithium halide.
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公开(公告)号：US5766032A
公开(公告)日：1998-06-16
申请号：US780907
申请日：1997-01-09
CPC分类号： H01R33/971 , F21V19/0095 , F21Y2103/37 , H01R33/0809
摘要： A theft-resistant assembly for screw base compact fluorescent lamps of the type having at least one U-tube integrated with and extending from an adapter member. The adapter member has a threaded portion for engagement with a lamp socket. The assembly includes a ring for disposition around a protrusion of the lamp socket protrusion, arms upstanding from the ring with each of the arms having an arm connector thereon, a collar for disposition around the U-tube and for engagement with a top surface of the adapter member, and legs depending from the collar with each of the legs having a leg connector thereon. The leg connectors are lockingly engageable with the arm connectors, respectively, to lock the collar to the ring, whereby to lock the adapter member to the socket.
摘要翻译： 用于具有与适配器构件一体并且从适配器构件延伸的至少一个U形管的螺钉底座紧凑型荧光灯的防盗组件。 适配器构件具有用于与灯插座接合的螺纹部分。 组件包括环，用于围绕灯插座突出部的突出部配置，臂从环上直立，其中每个臂具有臂连接器，用于围绕U形管设置并用于与所述U形管的顶表面接合的套环 适配器构件，以及从所述套环悬挂的腿，其中每个腿在其上具有腿连接器。 腿连接器分别与臂连接器可锁定地接合，以将套环锁定到环上，从而将适配器构件锁定到插座。
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公开(公告)号：US4780619A
公开(公告)日：1988-10-25
申请号：US050999
申请日：1987-05-15
CPC分类号： H02J7/1438 , Y10T307/718
摘要： A high DC voltage power supply includes a three-phase autotransformer and a three-phase full-wave rectifier applied to the usual motor vehicle electrical system of the low DC voltage type. The low three-phase AC voltage of the usual system is transformed by the autotransformer to obtain a high three-phase AC voltage which is then rectified by the rectifier to provide a high DC voltage. The load energized by the high DC voltage is ungrounded to reduce the voltage available for inadvertent discharge from either load terminal to ground. Switching apparatus is provided for selectively applying the low three-phase AC voltage to the autotransformer only when it is desired to energize the load thereby avoiding at all other times the energy losses that would otherwise be associated with energization of the autotransformer. In one embodiment, the load is a windshield heater element and the autotransformer has multiple sets of input taps to provide deice and defog modes of operation, respectively. The tapping of the autotransformer on the input or primary side yields efficiencies in the construction and operation of the autotransformer. The engine driven generator of the vehicle electrical system is excited from a voltage source independent of the low three-phase AC voltage put out by the generator, at least during any period that the generator is overloaded, thereby to prevent a degenerative collapse in the generator output voltage.
摘要翻译： 高直流电压电源包括三相自耦变压器和三相全波整流器，其应用于低直流电压型的通常机动车辆电气系统。 通常系统的低三相交流电压由自耦变压器变换，以获得高三相交流电压，然后由整流器进行整流，以提供高直流电压。 由高直流电压供电的负载不接地，以降低可用于从负载端子到接地的无意放电的电压。 提供开关装置，用于仅当需要对负载通电时选择性地将低三相AC电压施加到自耦变压器，从而在所有其他时间避免否则将与自耦变压器的通电相关联的能量损失。 在一个实施例中，负载是挡风玻璃加热器元件，并且自耦变压器分别具有多组输入抽头以提供操作模式和除雾模式。 自耦变压器在输入或初级端的开关在自耦变压器的结构和运行方面产生效率。 至少在发电机过载的任何时间段内，车载电气系统的发动机驱动发电机从电压源被激励，独立于由发电机输出的低三相交流电压，从而防止发电机的退化崩溃 输出电压。
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6.发明授权
公开(公告)号：US4376830A
公开(公告)日：1983-03-15
申请号：US291587
申请日：1981-08-10
CPC分类号： C04B28/36
摘要： Sulfur cement-aggregate compositions comprising a sulfur cement and an aggregate containing an expansive clay and processes for preparing such compositions. The processes, and resulting compositions, are characterized by the addition of certain organosilanes in the composition prior to solidifying (cooling) the composition. The resulting solidified composition has improved water stability.The compositions can be used as mortars or concretes depending on the particle size of the principal aggregate component.
摘要翻译： 包含硫磺水泥和含有膨胀粘土的骨料的硫磺水泥 - 骨料组合物和制备这种组合物的方法。 方法和所得组合物的特征在于在组合物凝固（冷却）之前在组合物中加入某些有机硅烷。 得到的固化组合物具有改善的水稳定性。 根据主要聚集体组分的粒径，组合物可用作砂浆或混凝土。
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公开(公告)号：US4301274A
公开(公告)日：1981-11-17
申请号：US116434
申请日：1980-01-29
申请人： Robert W. Campbell
发明人： Robert W. Campbell
CPC分类号： C08G75/0236
摘要： Aromatic sulfide/sulfone polymers are prepared by initially contacting a dihaloaromatic sulfone, an alkali metal sulfide, an organic amide, and, optionally, an alkali metal carboxylate under polymerization conditions and subsequently at or near completion of the polymerization reaction, adding an end-capping agent comprising additional dihaloaromatic sulfone to the reaction mixture producing a polymer exhibiting improved physical properties including melt flow stability. The resulting polymers have utility as coatings, films, molded objects, filaments, fibers, and the like.
摘要翻译： 芳族硫化物/砜聚合物通过在聚合反应条件下，随后在聚合反应或接近完成时首先使二卤代芳砜，碱金属硫化物，有机酰胺和任选的碱金属羧酸盐接触来制备，加入封端 其包含额外的二卤代芳砜到反应混合物中，产生显示出改善的物理性质（包括熔体流动稳定性）的聚合物。 所得到的聚合物具有作为涂料，薄膜，成型体，长丝，纤维等的用途。
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公开(公告)号：US4198245A
公开(公告)日：1980-04-15
申请号：US938666
申请日：1978-08-31
CPC分类号： C04B22/14
摘要： The strength of portland cement concrete structures which incorporate alkali metal or alkaline earth polysulfides is increased by heating the structures at temperatures above 110.degree. C.
摘要翻译： 通过在110℃以上的温度下加热结构，增加掺入碱金属或碱土金属多硫化物的波特兰水泥混凝土结构的强度。
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公开(公告)号：US4139663A
公开(公告)日：1979-02-13
申请号：US823808
申请日：1977-08-11
申请人： Robert W. Campbell
发明人： Robert W. Campbell
CPC分类号： B05B7/0416
摘要： A process for applying a smooth coating of a plasticized-sulfur composition which comprises:(1) conducting a continuous stream of a molten plasticized-sulfur coating composition through a flexible conduit to a spray nozzle;(2) injecting a substantially inert pressurized gas into the conduit proximate to the nozzle at a flow rate such that the ratio of the flow rate of the coating composition in cubic feet per minute to the flow rate of the gas in cubic feet per minute is about 0.02/1 to about 1/1; and(3) spraying the coating composition and the gas from the conduit through the nozzle onto the surface to be coated.
摘要翻译： 一种应用光滑涂层的增塑硫组合物的方法，其包括：
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公开(公告)号：US4051087A
公开(公告)日：1977-09-27
申请号：US687973
申请日：1976-05-20
IPC分类号： C08G69/26
CPC分类号： C08G69/265 , Y10T428/31739
摘要： Normally solid, moldable polyamides having diamine-derived structural units of the formula ##STR1## wherein each A is individually selected from the group consisting of 5-methylnonamethylene, 2,4-dimethyloctamethylene, 2,4,6-trimethylheptamethylene, and 4-isopropylheptamethylene; first diacid-derived structural units of the formula ##STR2## and second diacid-derived structural units of the formula ##STR3## wherein X is a divalent aliphatic hydrocarbon radical containing from 14 to 46 carbon atoms. Minor amounts of other polyamide-forming materials can be included in the copolyamide to provide up to 30 percent of the nitrogen atoms and up to 30 percent of the carbonyl groups. When used as adhesives, these copolyamides possess very good initial T-peel strength.
摘要翻译： 通常为具有式“IMAGE”的具有二胺衍生的结构单元的固体可成型聚酰胺，其中每个A各自选自5-甲基亚麻基，2,4-二甲基八亚甲基，2,4,6-三甲基亚庚基和4-异丙基亚庚基 ; 具有式“IMAGE”的第一二酸衍生的结构单元和式IMAMA的第二二酸衍生的结构单元，其中X是含有14至46个碳原子的二价脂族烃基。 可以在共聚酰胺中包含少量的其它聚酰胺形成材料，以提供高达30％的氮原子和至多30％的羰基。 当用作粘合剂时，这些共聚酰胺具有非常好的初始T剥离强度。
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