-
公开(公告)号：US5283045A
公开(公告)日：1994-02-01
申请号：US004248
申请日：1993-01-14
CPC分类号： C10C1/00 , C04B35/528
摘要： A carbon powder is disclosed with 40 to 75% by weight QI or more than 90% by weight TI, an optical anisotropy of less than 50% by volume, a start of softening between 200.degree. and 300.degree. C., and an oxygen content of more than 2% by weight, and which can be used for without binding agent the production of shaped carbon bodies. The carbon powder is produced by means of distillation from bituminous product at a maximum of 5 mbars and a final temperature of at least 400.degree. C., grinding of the distillation residue to a particle size of less than 30 .mu.m, and oxidation of the powder into the particle core.
摘要翻译： 公开了一种碳粉，其具有40至75重量％的QI或大于90重量％的TI，光学各向异性小于50体积％，软化开始在200摄氏度至300摄氏度之间，氧含量 超过2重量％，可用于无粘结剂生产成型碳体。 碳粉通过最大5m巴的沥青产物蒸馏生成，最终温度至少为400摄氏度，蒸馏残渣研磨至小于30（m）的粒度，氧化 的粉末进入颗粒核心。
-
公开(公告)号：US5262043A
公开(公告)日：1993-11-16
申请号：US869936
申请日：1992-04-17
摘要： An isotropic coal tar pitch having a low content of carcinogenic compounds is prepared by distilling a coal tar pitch in an evaporator having a specific evaporator surface of from 330 to 10,000 m.sup.2 /m.sup.3, at a temperature in the range of from 300.degree. to 380.degree. C., under a pressure not exceeding 1 mbar, whereby the average stay period is from 2 to 10 minutes. The isotropic pitch thus obtained contains less that 50 ppm of benzo[a]pyrene and is suitable, optionally after adding an oil, resin or other modifying agents having a low benzo[a]pyrene content, for use as binding and impregnating agent and also as protecting agent in construction materials or as varnish (painting agent).
摘要翻译： 具有低含量致癌化合物的各向同性煤焦油沥青通过在具有330至10,000m 2 / m 3的特定蒸发器表面的蒸发器中蒸馏煤焦油沥青而制备，温度范围为300-380℃ C.在不超过1毫巴的压力下，平均逗留时间为2至10分钟。 由此获得的各向同性沥青包含少于50ppm的苯并[a]芘，并且任选地在加入具有低苯并[a]芘含量的油，树脂或其它改性剂之后，适合用作结合和浸渍剂，并且还 作为建筑材料中的保护剂或清漆（涂漆剂）。
-
公开(公告)号：US5075416A
公开(公告)日：1991-12-24
申请号：US647607
申请日：1991-01-29
IPC分类号： C08F2/18 , C08F2/44 , C08F212/00 , C08F212/06 , C08F240/00
CPC分类号： C08F240/00
摘要： A process for the preparation of an aromatic hydrocarbon resin modified with aromatic carboxylic acids comprising suspending methane sulfonic acid and at least one aromatic carboxylic acid in an aliphatic solvent and slowly proportioning at least one unsaturated aromatic hydrocarbon into the suspension under polymerization conditions and their salts.
摘要翻译： 一种制备用芳族羧酸改性的芳族烃树脂的方法，包括将甲磺酸和至少一种芳族羧酸悬浮在脂族溶剂中，并在聚合条件下缓慢配比至少一种不饱和芳烃至悬浮液及其盐。
-
公开(公告)号：US5621185A
公开(公告)日：1997-04-15
申请号：US118299
申请日：1987-10-01
申请人： Hans Spengler , Georg Schrodl
发明人： Hans Spengler , Georg Schrodl
CPC分类号： F42B12/16
摘要： The warhead comprises a preliminary shaped charge, a coaxial main shaped charge which is arranged at a distance from the latter, and an arrangement for increasing the axial distance between the preliminary shaped charge and the main shaped charge, which arrangement consists of a tube, in which the preliminary shaped charge is supported, a propelling charge, which is arranged behind the preliminary shaped charge, and a supporting device for the tube. The preliminary shaped charge is held in the tube by means of one or more shearing pins, wherein both the tube and the supporting device are provided in the ogive portion of the warhead with a cooperating catch device, so that the tube can be moved from the moved-in rest position into a moved-out working position after the ignition of the propelling charge for the preliminary shaped charge and can be caught in that position.
摘要翻译： 弹头包括预备成形装料，与后者相距一定距离的同轴主体装料，以及用于增加预成型装料与主成形装料之间的轴向距离的装置，该装置由管组成， 其中预备成形的电荷被支撑，布置在预成型电荷后面的推进电荷和用于管的支撑装置。 预成型装料通过一个或多个剪切销保持在管中，其中管和支撑装置都在配合的捕获装置中设置在弹头的主要部分中，使得管可以从 在预备成型装置的推进装药点火之后，将其移入静止位置并移动到该位置。
-
公开(公告)号：US4113931A
公开(公告)日：1978-09-12
申请号：US704600
申请日：1976-07-12
IPC分类号： C08F240/00 , C08F244/00
CPC分类号： C08F240/00 , C08F244/00
摘要： A process for the continuous production of indene resins comprising the steps of continuously pre-heating an indene-containing hydrocarbon mixture, continuously adding a boron trifluoride-adduct catalyst and the pre-heated indene-containing mixture to a reaction tube, continuously isothermally reacting the indene-containing mixture with the catalyst at the temperature of the pre-heated mixture to form an indene-containing resin, continuously decomposing the catalyst, and continuously separating the indene-containing resin from the decomposed catalyst and unreacted substances.
-
公开(公告)号：US6021703A
公开(公告)日：2000-02-08
申请号：US172209
申请日：1988-03-16
申请人： Klaus Peter Geiss , Hans Spengler
发明人： Klaus Peter Geiss , Hans Spengler
CPC分类号： F41H5/007
摘要： An active armor for protection against shaped or hollow charge projectiles (1) is formed by a front and a rear sandwich arrangement (2) and (3). The front sandwich arrangement (2) has a splinter jacket as a front outer layer (5), in order to render the main shaped charge of a twin shaped charge ineffective. The rear sandwich arrangement (3) serves in cooperation with the front sandwich arrangement (2) for rendering single shaped charges ineffective.
摘要翻译： 用于防止形状或中空的投弹（1）的主动装甲由前后三明治布置（2）和（3）形成。 前夹层结构（2）具有作为前外层（5）的碎片护套，以使得双成形电荷的主要成形电荷无效。 后夹心装置（3）与前三明治装置（2）协同工作，以使单形电荷无效。
-
公开(公告)号：US4795847A
公开(公告)日：1989-01-03
申请号：US151697
申请日：1988-02-02
申请人： Jens Weitkamp , Marita Neuber , Wilhelm Holtmann , Gerd Collin , Hans Spengler
发明人： Jens Weitkamp , Marita Neuber , Wilhelm Holtmann , Gerd Collin , Hans Spengler
IPC分类号： B01J29/06 , B01J29/40 , C07B61/00 , C07C1/00 , C07C2/66 , C07C2/86 , C07C15/24 , C07C67/00 , C07C2/68
CPC分类号： C07C2/66 , B01J29/40 , C07C2/864 , C07C2529/40
摘要： A process for the preparation of 2,6-dialkyl-naphthalenes comprising selectively alkylating naphthalene or 2-alkyl-naphthalene with alkylating agent in the presence of a zeolite catalyst at 250.degree. to 345.degree. C. which dialkyl-naphthalenes are useful for the preparation of naphthalene 2,6-dicarboxylic acid used to produce high-quality polyesters or polyamides.
摘要翻译： 一种制备2,6-二烷基萘的方法，包括在250至345℃的沸石催化剂存在下，用烷基化剂选择性地烷基化萘或2-烷基萘，该二烷基萘可用于制备 用于生产高品质聚酯或聚酰胺的萘2,6-二羧酸。
-
公开(公告)号：US4274803A
公开(公告)日：1981-06-23
申请号：US37022
申请日：1979-05-08
申请人： Hans Spengler , Klaus Stoof
发明人： Hans Spengler , Klaus Stoof
CPC分类号： F04D13/14
摘要： A high feed centrifugal pump has a housing, a low-speed suction stage arranged in the housing and having an axis, at least one high-speed high pressure stage also arranged in the housing and axially displaced from the low speed suction stage, so that the housing has a suction side and a pressure side, and a drive operative for driving the stages independently of each other and including a first prime mover operative for driving the low speed-suction stage and a second prime mover operative for driving the high-speed high-pressure stage. One of the prime movers which is operative for driving a respective one of the stages is flanged to the housing at a respective one of the sides, whereas the other of the prime movers is flanged to the one prime mover in tandem arrangement.
摘要翻译： 高进料离心泵具有壳体，布置在壳体中并且具有轴线的低速抽吸级，还具有至少一个高速高压级，其也布置在壳体中并且从低速抽吸级轴向移位，使得 壳体具有吸入侧和压力侧，以及用于独立于彼此驱动级的驱动器，并且包括用于驱动低速吸入级的第一原动机和用于驱动高速吸入级的第二原动机 高压阶段。 用于驱动相应一个级的原动机中的一个在相应的一个侧面处被凸缘连接到壳体，而另一个原动机以串联布置法兰连接到一个原动机。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.018 秒)