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1. 发明授权

US4772665A Heat- and oxidation-resistant polyurethane coatings 失效
标题翻译：耐热和耐氧化聚氨酯涂料
公开(公告)号：US4772665A
公开(公告)日：1988-09-20
申请号：US454563
申请日：1982-12-30
申请人： Josef Disteldorf , Werner Flakus
发明人： Josef Disteldorf , Werner Flakus
IPC分类号： C08G18/00 , C08G18/79 , C09D175/00 , C09D175/04 , C08L75/04 , C08L75/06
CPC分类号： C08G18/792
摘要： A polyurethane coating composition comprising:(a) a synthetic organic polymer containing at least two hydroxyl groups,(b) a polyisocyanatoisocyanurate having the formula: ##STR1## wherein the R groups may be the same or different and are selected from the group consisting of divalent hydrocarbon radicals having the formulas: ##STR2## and n represents a whole or a fractional number from 1 to 5, and (c) optionally, conventional auxiliary agents selected from the group consisting of solvents, dispersing agents, pigments, fillers, and spreading agents, can be subjected to cold or hot curing, and provides a cured coating composition having good resistance to thermal oxidation, good solvent resistance and good mechanical film properties.
摘要翻译：一种聚氨酯涂料组合物，其包含：（a）含有至少两个羟基的合成有机聚合物，（b）具有下式的聚异氰酸酯基异氰脲酸酯：其中R基团可以相同或不同，并且选自具有下式的二价烃基：＆lt; IMAGE＆gt; n表示1〜5的全部或分数，（c）任选地，选自溶剂，分散剂，颜料，填料和扩散剂的常规助剂试剂可以进行冷或热固化，并提供具有良好的耐热氧化性，良好的耐溶剂性和良好的机械膜性能的固化涂料组合物。

2. 发明授权

US4562264A Process for the recovery of five-membered ring dicarboxylic acid anhydrides 失效
标题翻译：回收五元环二羧酸酐的方法
公开(公告)号：US4562264A
公开(公告)日：1985-12-31
申请号：US646073
申请日：1984-08-31
申请人： Fritz Gude , Ferdinand von Praun
发明人： Fritz Gude , Ferdinand von Praun
IPC分类号： C07C51/573 , C07D307/60 , C07D307/89
CPC分类号： C07C51/573
摘要： A process for the recovery of five-membered ring dicarboxylic acid anhydrides from aqueous solutions of the corresponding dicarboxylic acids which entails (a) washing the aqueous solution of the dicarboxylic acid with a water-insoluble tertiary amine, and separating the resulting amine-acid salt from the water layer; and (b) adding an aromatic hydrocarbon entrainer for the water, removing the entrainer/water azeotrope by distillation and separating the five-membered ring dicarboxylic acid anhydride after phase separation; or adding an aliphatic hydrocarbon entrainer for the water, removing a ternary azeotropic mixture consisting of a hydrolytically stable anhydride, water and entrainer by distillation and separating the five-membered ring dicarboxylic acid anhydride after phase separation.
摘要翻译：从相应的二羧酸的水溶液中回收五元环二羧酸酐的方法，其中（a）用水不溶性叔胺洗涤二羧酸的水溶液，并分离所得的胺酸盐从水层; 和（b）向水中加入芳族烃夹带剂，通过蒸馏除去夹带剂/水共沸物，并在相分离后分离五元环二羧酸酐; 或者向水中加入脂族烃夹带剂，通过蒸馏除去由水解稳定的酸酐，水和夹带剂组成的三元共沸混合物，并在相分离后分离五元环二羧酸酐。

3. 发明授权

US4540439A Process for preparation of gypsum shapes 失效
标题翻译：石膏形状的制备工艺
公开(公告)号：US4540439A
公开(公告)日：1985-09-10
申请号：US375709
申请日：1982-05-06
申请人： Hans-Friedrich Kurandt
发明人： Hans-Friedrich Kurandt
IPC分类号： C04B28/14 , C04B11/00 , C01F11/46 , C04B11/10
CPC分类号： C04B28/143
摘要： A process for preparing shaped articles from waste gypsum from wet-process phosphoric acid production comprises:(1) mixing wet calcium sulfate hemihydrate with 0.5-20% by wt. of calcium hydroxide or calcium oxide,(2) adjusting the total water content of said mixture to 20-40% by wt., if necessary, and(3) molding shaped articles from said mixture by compression molding.The shaped objects so prepared have a low density and relatively high compressive strength.
摘要翻译：从湿式磷酸生产废弃石膏制备成型制品的方法包括：（1）将湿硫酸钙半水合物与0.5-20重量％的氢氧化钙或氧化钙，（2）如果需要，将所述混合物的总含水量调节至20-40重量％，和（3）通过压塑成型从所述混合物成型成型制品。如此制备的成形物体具有低密度和相对高的抗压强度。

4. 发明授权

US4475985A Process for the production of a diaphragm for electrolytic cells 失效
标题翻译：用于生产电解槽隔膜的方法
公开(公告)号：US4475985A
公开(公告)日：1984-10-09
申请号：US435551
申请日：1982-10-21
申请人： Werner Kleinloh , Werner Thronberens
发明人： Werner Kleinloh , Werner Thronberens
IPC分类号： C25B13/00 , C25B13/06 , B29J5/00
CPC分类号： C25B13/06 , C25B13/00
摘要： The process relates to the formation of diaphragms, for example those used for alkali chloride electrolysis in an aqueous solution. The formation of a layer-type diaphragm, accreted on a hollow diaphragm support from a slurry having a high solids content of diaphragm material, is made uniform.During the accretion step, the diaphragm support is periodically lifted and lowered in the slurry (frequency 0.1-10 min.sup.-1 ; amplitude 10-100 cm; velocity 2-20 cm/sec); its topside, at the upper reversal point of the oscillating motion, has a certain spacing (10-25 cm) from the constantly measured height of the level of slurry in the accretion tank and its underside cannot reach below a minimum distance (30 cm) from the bottom of the basin. The suction pressure of the slurry through the hollow diaphragm support is maintained at a constant value and is controlled (10-500 mbar below the atmospheric pressure of the surroundings).The accretion step can be subdivided into time intervals between which the frequency and the suction pressure are increased stepwise.The electrolysis process becomes more economical with the use of the diaphragm produced according to this invention.
摘要翻译：该方法涉及隔膜的形成，例如用于在水溶液中碱性氯化物电解的膜。由具有高固体含量的隔膜材料的浆料形成的中空隔膜支架上的层状隔膜的形成是均匀的。在积垢步骤中，隔膜支撑件在浆料中周期性地升高和降低（频率0.1-10分钟-1;振幅10-100厘米;速度2-20厘米/秒）; 其上部位于振荡运动的上部反转点处，与吸入池中浆料水平的不断测量的高度具有一定的间隔（10-25厘米），其下侧不能达到最小距离（30厘米）从盆地的底部。通过中空隔膜支撑件的浆料的吸入压力保持在恒定值，并被控制（低于环境的大气压力10-500mbar）。吸积步骤可以细分为频率和吸入压力逐步增加的时间间隔。通过使用根据本发明制造的隔膜，电解过程变得更加经济。

5. 发明授权

US4403098A Process for producing a 3,3-dimethyl-2-alkoxyoxirane from a 1-alkoxy-2-methylpropene 失效
标题翻译：由1-烷氧基-2-甲基丙烯制备3,3-二甲基-2-烷氧基环氧乙烷的方法
公开(公告)号：US4403098A
公开(公告)日：1983-09-06
申请号：US357126
申请日：1982-03-11
申请人： Rudolf Brockhaus , Hans-Jurgen Franke
发明人： Rudolf Brockhaus , Hans-Jurgen Franke
IPC分类号： B01J23/00 , C07B61/00 , C07D303/48 , C07D301/06
CPC分类号： C07D303/48
摘要： A process for producing a 3,3-dimethyl-2-alkoxyoxirane comprises oxidizing a 1-alkoxy-2-methylpropene with molecular oxygen in the liquid phase, at a temperature of 25.degree.-70.degree. C., optionally in the presence of an alkaline compound.
摘要翻译：制备3,3-二甲基-2-烷氧基环氧乙烷的方法包括在25-70℃的温度下，在液相中用分子氧氧化1-烷氧基-2-甲基丙烯，任选在碱性化合物。

6. 发明授权

US4399110A Process for reducing the radioactivity of calcium sulfate prepared from phosphate rock 失效
标题翻译：降低由磷酸盐岩制备的硫酸钙的放射性的方法
公开(公告)号：US4399110A
公开(公告)日：1983-08-16
申请号：US272681
申请日：1981-06-11
申请人： Hans-Friedrich Kurandt
发明人： Hans-Friedrich Kurandt
IPC分类号： C01F11/46 , G21F9/10 , C01B25/16 , C01F5/12 , C01G43/00
CPC分类号： C01F11/46 , G21F9/10 , C01P2006/42
摘要： The level of radioactivity in gypsum produced from phosphate rock can be reduced by adding to the slurry of acid and phosphate rock in the conventional process for producing phosphoric acid a combination of concentrated nitric acid or hydrochloric acid and an ammonium salt, especially ammonium nitrate or ammonium phosphate, before the precipitation of the calcium sulfate.
摘要翻译：在磷酸的浓缩硝酸或盐酸与铵盐，特别是硝酸铵或铵盐的组合的常规生产方法中，通过添加酸和磷酸盐岩的浆料可以减少由磷酸盐岩产生的石膏中的放射性水平磷酸盐，然后沉淀硫酸钙。

7. 发明授权

US4351654A Process for the removal of precipitates in heat exchangers of low temperature installations 失效
标题翻译：在低温设备换热器中除去沉淀物的方法
公开(公告)号：US4351654A
公开(公告)日：1982-09-28
申请号：US217222
申请日：1980-12-17
申请人： Waldemar Krebs , Hermann Bromme
发明人： Waldemar Krebs , Hermann Bromme
IPC分类号： F25J3/00 , F28G9/00
CPC分类号： F25J5/002 , F28G9/00 , F25J2205/24 , F25J2280/20 , Y10S62/909
摘要： A process for removing troublesome precipitates of condensable gases in a heat exchanger of a continuously operated low temperature installation in which gas to be cooled, such as air, which contains condensable gases at ambient temperature is passed from a warm end to a cold end of the exchanger through a storage material and over heat exchange surfaces--maintained at a temperature ranging from -165.degree. C. to -160.degree. C. at the cold end--and cold regenerator gas free of condensable gases is alternately passed from the cold end to the warm end over the storage material and heat exchanger surfaces to remove precipitates of the condensable gases therefrom in a cyclic operation, without total shut-down of the installation, involves the further step of introducing warm gas which is at a temperature of between 0.degree. C. and +110.degree. C. and which does not contain any condensable gases briefly at the cold end of the heat exchanger so as to remove precipitates remaining within the heat exchanger after a continuous period of the cyclic operation.
摘要翻译：一种在连续操作的低温设备的热交换器中除去可冷凝气体的麻烦的沉淀物的方法，其中待冷却的气体，例如在环境温度下含有可冷凝气体的空气，从热端到冷端交换器通过储存材料和过热交换表面 - 在冷端保持在-165℃至-160℃的温度，而不含可冷凝气体的冷再生器气体从冷端交替传递到在储存材料和热交换器表面上温暖地结束以在循环操作中除去其中的可冷凝气体的沉淀物，而不完全关闭设备，包括引入温度在0℃之间的温暖气体的进一步步骤和+110℃，并且在热交换器的冷端处不短暂地含有任何可冷凝气体，以除去残留在热交换器内的沉淀物经过连续周期的循环操作。

8. 发明授权

US4332645A Process for the separation of methanol from mixtures of tetrahydrofuran with methanol and water 失效
标题翻译：从四氢呋喃与甲醇和水的混合物中分离甲醇的方法
公开(公告)号：US4332645A
公开(公告)日：1982-06-01
申请号：US167443
申请日：1980-07-10
申请人： Wolfgang H. E. Muller , Michael Zolffel
发明人： Wolfgang H. E. Muller , Michael Zolffel
IPC分类号： C07C29/80 , C02F1/04 , C07C27/00 , C07C31/04 , C07C67/00 , C07D307/08 , B01D3/00 , C07D307/00
CPC分类号： C07D307/08 , Y10S203/20
摘要： A process for the continuous separation of methanol and water from a feed mixture containing predominantly tetrahydrofuran admixed with water, methanol and small amounts of additional compounds, in a rectifying apparatus having at last two rectifying columns, of which two are operated at different pressures which involves feeding the raw material into a first column operated under lower pressure, and introducing the distillate from the column operated under a lower pressure to a second column operated under a higher pressure, while a product stream from the second column operated under a higher pressure is reintroduced into the first column operated under a lower pressure. In this process the product stream withdrawn from the second column operated under a higher pressure is withdrawn as a side stream from the stripping or enrichment section of the second column and is returned into the first column operated under a lower pressure, while a methanol-enriched product stream containing practically all of the methanol introduced with the raw material into the rectifying apparatus is withdrawn from the head of the second column operated under a higher pressure. The first column is operated for example at atmospheric pressure and the second column is operated at a pressure of from 1 to 25 bar.
摘要翻译：在最后两个精馏塔的精馏装置中，甲醇和水从主要包含四氢呋喃混合的进料混合物中连续分离出来的方法，其中两个精馏塔在不同的压力下操作，将原料进料到在较低压力下操作的第一塔中，并将来自在较低压力下操作的塔的馏出物引入到在较高压力下操作的第二塔中，同时再次引入来自第二塔的产物流进入在较低压力下运行的第一列。在该方法中，从较高压力下运行的第二塔排出的产物流作为来自第二塔的汽提或富集段的侧流排出，并返回到在较低压力下运行的第一塔中，同时富含甲醇将从原料中引入的几乎所有的甲醇的整个装入整流装置的产物流从高压运转的第二塔的头部取出。第一列例如在大气压下操作，第二列在1至25巴的压力下操作。

9. 发明授权

US4302351A Compounds containing isocyanuric groups and terminally blocked isocyanate groups 失效
标题翻译：含有异氰脲酸基团和末端封端异氰酸酯基团的化合物
公开(公告)号：US4302351A
公开(公告)日：1981-11-24
申请号：US139399
申请日：1980-04-11
申请人： Rainer Gras , Elmar Wolf
发明人： Rainer Gras , Elmar Wolf
IPC分类号： C07D251/34 , C08G18/00 , C08G18/79 , C08G18/80 , C08G69/20 , C09K3/00
CPC分类号： C07D251/34 , C08G18/792 , C08G18/8061 , C08G69/20
摘要： Method for the preparation of compounds containing isocyanuric groups and blocked isocyanate groups from aliphatic and/or cycloaliphatic polyisocyanates; wherein the starting polyisocyanate is first transformed by a known method into a mixture containing an isocyanurate containing at least two free isocyanate groups; and this intermediate product is reacted with monofunctional acidic-hydrogen containing blocking agents; wherein the blocking agent is added in an amount such that one equivalent of agent is added for every equivalent of NCO-group equivalent.
摘要翻译：从脂族和/或脂环族多异氰酸酯制备含有异氰脲酸基团和封端异氰酸酯基团的化合物的方法; 其中起始多异氰酸酯首先通过已知方法转化成含有至少两个游离异氰酸酯基的异氰脲酸酯的混合物; 并使该中间产物与单官能含酸性氢的封闭剂反应; 其中所述封闭剂的加入量使得为每当量的NCO-基团当量加入一当量的试剂。

10. 发明授权

US4299730A Process for the production of a catalyst for the hydration of olefins into alcohols 失效
标题翻译：制备用于将烯烃水合成醇的催化剂的方法
公开(公告)号：US4299730A
公开(公告)日：1981-11-10
申请号：US124758
申请日：1980-02-26
申请人： August Sommer , Rainer Brucker
发明人： August Sommer , Rainer Brucker
IPC分类号： B01J21/16 , B01J27/16 , C07C27/00 , C07C29/04 , C07C29/08 , C07C31/02 , C07C67/00 , B01J27/14 , B01J29/06
CPC分类号： B01J27/16 , B01J21/16 , C07C29/04
摘要： A process for producing a clay-containing catalyst for the hydration of olefins having 2-3 carbon atoms into alcohols, which comprises: (A) acid-treating a montmorillonite-containing clay which is contaminated by not more than 3% of quartz, feldspar or mica, and which may contain up to 0.5% of K.sub.2 O, until the clay has an Al.sub.2 O.sub.3 content of 13-18% by weight, thereby obtaining a surface area of 200-400 m.sup.2 /g; (B) molding the clay at a total water content of 20-35%; (C) calcining at 500.degree.-800.degree. C.; (D) acid-treating the molded and calcined clay to an Al.sub.2 O.sub.3 content of 1-5% by weight, thereby obtaining a surface area of 150-250 m.sup.2 /g; and (E) impregnating said material with phosphoric acid.
摘要翻译：一种制备用于使具有2-3个碳原子的烯烃水合成醇的含粘土催化剂的方法，其包括：（A）酸性处理被不超过3％的石英，长石污染的含蒙脱石的粘土或云母，并且其可以含有高达0.5％的K 2 O，直到粘土具有13-18重量％的Al 2 O 3含量，从而获得200-400m 2 / g的表面积; （B）以20-35％的总含水量成型粘土; （C）在500〜800℃下煅烧。（D）将成型和煅烧的粘土酸化至1-5重量％的Al 2 O 3含量，从而获得150-250m2 / g的表面积; 和（E）用磷酸浸渍所述材料。

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