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1. 发明授权

US4788265A Preparation of copolmers of ethylene with acrylic acid esters in a tubular reactor at above 500 bar 失效
标题翻译：在500巴以上的管式反应器中制备乙烯与丙烯酸酯的共聚物
公开(公告)号：US4788265A
公开(公告)日：1988-11-29
申请号：US41232
申请日：1987-04-22
申请人： Klaus Pfleger , Klaus Boettcher , Oskar Buechner , Friedrich Kanne , Siegfried Kursawe , Wieland Zacher
发明人： Klaus Pfleger , Klaus Boettcher , Oskar Buechner , Friedrich Kanne , Siegfried Kursawe , Wieland Zacher
IPC分类号： C08F2/00 , C08F2/02 , C08F2/38 , C08F210/00 , C08F210/02 , C08F220/02 , C08F220/10
CPC分类号： C08F210/02
摘要： Copolymers of ethylene with acrylates or solutions of free acrylic acid in acrylates are prepared in a continuously operated tubular polymerization system at high pressures and temperatures by feeding a mixture of ethylene, acrylate, initiator and, if appropriate, regulant into the polymerization system in the form of a main stream at the inlet point thereof and at the same time through two or more secondary streams, secondary streams (I) being metered in at points where the reaction temperature has just exceeded a maximum temperature due to the heat of polymerization and secondary streams (II) at points which, relative to the direction of flow of the ethylene, are upstream of the feed points of secondary streams (I) and upstream of the respective maximum temperature.
摘要翻译：乙烯与丙烯酸酯或游离丙烯酸溶液在丙烯酸酯中的共聚物在连续操作的管式聚合体系中在高压和高温下通过将乙烯，丙烯酸酯，引发剂和（如果合适的话）调节剂的混合物以形式的主流，并且同时通过两个或更多个二次流，在由于聚合热和二次流引起的反应温度刚刚超过最大温度的点处计量二次流（I）（II）在相对于乙烯流动方向的点处在次级流（I）的进料点的上游和相应的最高温度的上游。

2. 发明授权

US4217431A Manufacture of ethylene copolymers 失效
标题翻译：乙烯共聚物的制造
公开(公告)号：US4217431A
公开(公告)日：1980-08-12
申请号：US2330
申请日：1979-01-10
申请人： Wieland Zacher , Klaus Pfleger , Klaus Boettcher , Ronald Skorczyk , Oskar Buechner
发明人： Wieland Zacher , Klaus Pfleger , Klaus Boettcher , Ronald Skorczyk , Oskar Buechner
IPC分类号： C08F10/00 , C08F2/34 , C08F210/02 , C08F6/00
CPC分类号： C08F210/02
摘要： A continuous process for the manufacture of ethylene copolymers under high pressure and at high temperature in a polymerization zone, with transfer of the reaction mixture into a high pressure product isolation zone and from there into a low pressure product isolation zone, and recycling of the unconverted gas from the high pressure product isolation zone into the polymerization zone and from the low pressure product isolation zone into a low temperature separator, from where the comonomer separated off is recycled to the polymerization process, while the ethylene is discharged as off-gas. The gas taken off the low pressure product isolation zone is preferably compressed to from 10 to 20 bar and cooled to from -10.degree. to -30.degree. C. before it is fed into the low temperature separator. There is a substantial improvement in the efficiency of separating off the comonomer.
摘要翻译：在高压和高温下在聚合区中制造乙烯共聚物的连续方法，将反应混合物转移到高压产物隔离区，并从那里转移到低压产物隔离区，并将未转化的气体从高压产物隔离区进入聚合区，从低压产物隔离区进入低温分离器，从分离出的共聚单体再循环到聚合过程中，而乙烯作为废气排出。从低压产品隔离区取出的气体优选压缩至10〜20巴，冷却至-10〜-30℃，然后送入低温分离器。分离共聚单体的效率有显着改善。

3. 发明授权

US4260722A Production of ethylene copolymers 失效
标题翻译：乙烯共聚物的生产
公开(公告)号：US4260722A
公开(公告)日：1981-04-07
申请号：US97838
申请日：1979-11-27
申请人： Klaus Pfleger , Wieland Zacher , Klaus Boettcher , Ronald Skorczyk , Oskar Buechner , Franz G. Mietzner
发明人： Klaus Pfleger , Wieland Zacher , Klaus Boettcher , Ronald Skorczyk , Oskar Buechner , Franz G. Mietzner
IPC分类号： C08F2/00 , C08F2/02 , C08F8/00 , C08F10/00 , C08F210/02
CPC分类号： C08F210/02
摘要： A process for the continuous production of an ethylene copolymer by compressing a mixture of ethylene and comonomer in a pre-compressor and a post-compressor, copolymerizing the mixture in a polymerization zone at a high temperature and high pressure, transferring the reaction mixture into a high pressure product isolation zone, from there into a low pressure product isolation zone and thereafter into a discharge extruder, and recycling the greater part of the unconverted monomer into the polymerization process and passing a small part of the unconverted gas into a low temperature isolation zone, in which process a small part of the gas recycled from the high pressure product isolation zone is passed into the low temperature isolation zone, which is preferably under a pressure of from 10 to 30 bar and at from -10.degree. to -50.degree. C., and all the gas taken off the low pressure product isolation zone is fed to the pre-compressor. Using the novel process, the separating-off of the comonomer which has remained unconverted in the polymerization process can be improved.
摘要翻译：通过在预压缩机和后压缩机中压缩乙烯和共聚单体的混合物来连续生产乙烯共聚物的方法，在高温高压下将混合物在聚合区中共聚，将反应混合物转移到高压产品隔离区，从那里进入低压产品隔离区，然后进入排出挤出机，并将大部分未转化的单体再循环到聚合过程中，并将未转化的气体的一小部分通入低温隔离区在该方法中，将从高压产物隔离区再循环的少量气体通入低温隔离区，优选在10〜30巴的压力和-10℃〜-50℃ 将从低压产品隔离区取出的全部气体送入预压缩机。使用该新方法，可以提高在聚合过程中保持未转化的共聚单体的分离。

4. 发明授权

US4153774A Manufacture of high pressure polyethylene 失效
标题翻译：制造高压聚乙烯
公开(公告)号：US4153774A
公开(公告)日：1979-05-08
申请号：US850398
申请日：1977-11-10
申请人： Klaus Boettcher , Heinrich G. Hoerdt , Wieland Zacher , Oskar Buechner
发明人： Klaus Boettcher , Heinrich G. Hoerdt , Wieland Zacher , Oskar Buechner
IPC分类号： C08F6/26 , C08F6/00 , C08F10/02
CPC分类号： C08F6/26 , Y10S526/921
摘要： A process for the high pressure polymerization of ethylene at elevated temperatures in a polymerization zone followed by transfer of the reaction mixture, through a cooling zone, into the separation zone. In this process, the pressure at the cooling zone outlet is periodically reduced briefly, at recurring intervals, these brief pressure reductions being independent of the pressure reductions in the polymerization zone. Using this process, the conversion in the polymerization unit can be increased and a more homogeneous ethylene polymer can be obtained.
摘要翻译：在聚合区域中在高温下高压聚合乙烯的方法，然后将反应混合物通过冷却区转移到分离区中。在此过程中，冷却区出口处的压力周期性地以重复的间隔周期性地减小，这些简单的压力降低与聚合区域中的压力降低无关。使用该方法可以提高聚合单元中的转化率，并可获得更均匀的乙烯聚合物。

5. 发明授权

US4087601A Manufacture of ethylene/n-butyl acrylate copolymers 失效
标题翻译：乙烯/丙烯酸正丁酯共聚物的制造
公开(公告)号：US4087601A
公开(公告)日：1978-05-02
申请号：US786406
申请日：1977-04-11
申请人： Klaus Pfleger , Wieland Zacher , Klaus Boettcher , Ronald Skorczyk , Oskar Buechner , Franz Georg Mietzner
发明人： Klaus Pfleger , Wieland Zacher , Klaus Boettcher , Ronald Skorczyk , Oskar Buechner , Franz Georg Mietzner
IPC分类号： G03C1/00 , C08F6/00 , C08F6/06 , C08F6/26 , C08F10/00 , C08F210/00 , C08F210/02 , C08F210/12 , G03F7/004
CPC分类号： C08F210/02 , C08F210/12
摘要： A process for the manufacture of copolymers of ethylene with n-butyl acrylate in a polymerization zone at pressures above 800 atmospheres and at from 150.degree. to 350.degree. C, wherein the reaction mixture obtained is transferred, via a cooling zone which is at a pressure below 500 atmospheres and at from 150.degree. to 250.degree. C, into the high pressure product isolation zone, the mean residence time of the reaction mixture in the two zones being from 2 to 10 minutes. A copolymer which gives good films is obtained.
摘要翻译：一种在高于800大气压和150-350℃的压力下在聚合区中制造乙烯与丙烯酸正丁酯的共聚物的方法，其中所获得的反应混合物通过冷却区转移，该冷却区处于压力低于500个大气压和150℃至250℃进入高压产物分离区，反应混合物在两个区域中的平均停留时间为2至10分钟。得到得到良好膜的共聚物。

6. 发明授权

US4048411A Manufacture of copolymers of ethylene 失效
标题翻译：乙烯共聚物的制造
公开(公告)号：US4048411A
公开(公告)日：1977-09-13
申请号：US687868
申请日：1976-05-19
申请人： Franz Georg Mietzner , Klaus Pfleger , Hans Gropper , Oskar Buechner , Klaus Boettcher , Wieland Zacher
发明人： Franz Georg Mietzner , Klaus Pfleger , Hans Gropper , Oskar Buechner , Klaus Boettcher , Wieland Zacher
IPC分类号： C08F6/00 , C08F6/06 , C08F6/26 , C08F10/00 , C08F210/00 , C08F210/02 , C08F218/00 , C08F218/02
CPC分类号： C08F210/02 , C08F6/26
摘要： A process for the manufacture of copolymers of ethylene with vinyl acetate at pressures above 800 atmospheres and at from 150.degree. to 350.degree. C, using mean residence times of up to at most 100 seconds. The reaction mixture obtained from the polymerization is kept for from 2 to 10 minutes at from 150.degree. to 250.degree. C under a pressure below 500 atmospheres. Homogeneous ethylene/vinyl acetate copolymers are obtained without the formation of substantial amounts of free acetic acid by decomposition of the vinyl acetate.
摘要翻译：使用平均停留时间最多至100秒制备乙烯与乙酸乙烯酯在高于800大气压和150至350℃的压力下的共聚物的方法。将聚合得到的反应混合物在150-250℃，压力低于500大气压下保持2至10分钟。获得均匀的乙烯/乙酸乙烯酯共聚物，而不会通过乙酸乙烯酯的分解形成大量的游离乙酸。

7. 发明授权

US4177340A Manufacture of high-pressure polyethylene 失效
标题翻译：制造高压聚乙烯
公开(公告)号：US4177340A
公开(公告)日：1979-12-04
申请号：US855896
申请日：1977-11-30
申请人： Klaus Boettcher , Heinrich G. Hoerdt , Klaus Pfleger , Wieland Zacher , Hans Gropper
发明人： Klaus Boettcher , Heinrich G. Hoerdt , Klaus Pfleger , Wieland Zacher , Hans Gropper
IPC分类号： C08F2/00 , C08F2/02 , C08F2/34 , C08F2/38 , C08F10/00 , C08F110/02 , C08F210/02
CPC分类号： C08F110/02
摘要： A process for the manufacture of ethylene polymers by polymerizing ethylene under high pressures and at high temperatures in the presence of from 0.01 to 0.5 percent by weight of an alkyl ester (alkyl being of 1 to 8 carbon atoms) of an alkenemonocarboxylic acid of 3 or 4 carbon atoms. n-Butyl acrylate is a particularly suitable polymerization activator. Although the start temperature of the ethylene polymerization is relatively low, there is no difference in mechanical and optical properties of a blown film manufactured from the resulting ethylene polymer and of a blown film of pure polyethylene.
摘要翻译：在高压和高温下，在0.01至0.5重量％的烷基酯（烷基为1至8个碳原子）存在下，通过在乙烯聚合乙烯聚合乙烯的方法 4个碳原子。丙烯酸正丁酯是特别合适的聚合活化剂。尽管乙烯聚合的起始温度相对较低，但由所得乙烯聚合物和纯聚乙烯吹塑薄膜制成的吹塑薄膜的机械和光学性能没有差别。

8. 发明授权

US4122248A Manufacture of homogeneous ethylene/tert-butyl acrylate/acrylic acid terpolymers 失效
标题翻译：均匀乙烯/丙烯酸叔丁酯/丙烯酸三元共聚物的制造
公开(公告)号：US4122248A
公开(公告)日：1978-10-24
申请号：US737719
申请日：1976-11-01
申请人： Klaus Pfleger , Klaus Boettcher , Wieland Zacher , Dirk Juza
发明人： Klaus Pfleger , Klaus Boettcher , Wieland Zacher , Dirk Juza
IPC分类号： C08F210/02 , C08F8/00 , C08F8/06
CPC分类号： C08F210/02 , Y10S526/914
摘要： A process for the manufacture of copolymers of ethylene with tert-butyl acrylate and acrylic acid at from 200.degree. to 350.degree. C under pressures above 800 atmospheres using mean residence times of up to at most 100 seconds, in which the reaction mixture obtained from the polymerization is kept for from 2 to 10 minutes at from 200.degree. to 250.degree. C under a pressure of not more than 500 atmospheres. Terpolymers are obtained which may be used as hot-melt adhesives in the form of thin and extremely homogeneous films.
摘要翻译：在高于800大气压的压力下，在200至350℃下使用平均停留时间至多100秒制备乙烯与丙烯酸叔丁酯和丙烯酸的共聚物的方法，其中从在不超过500个大气压的压力下，在200-250℃下聚合保持2至10分钟。获得的三元共聚物可用作薄且非常均匀的薄膜形式的热熔粘合剂。

9. 发明授权

US4093703A Removal of ethylene from gases 失效
标题翻译：从气体中除去乙烯
公开(公告)号：US4093703A
公开(公告)日：1978-06-06
申请号：US763927
申请日：1977-01-31
申请人： Oskar Buechner , Herbert Geierhaas , Volker Gierth , Siegfried Mueller , Wieland Zacher
发明人： Oskar Buechner , Herbert Geierhaas , Volker Gierth , Siegfried Mueller , Wieland Zacher
IPC分类号： B01D53/46 , B01D53/72 , B01J23/44 , C01B3/02 , B01D53/34
CPC分类号： B01J23/44 , B01D53/46 , B01D53/72 , C01B3/025
摘要： The removal of ethylene from gases which contain the ethylene in a concentration of not more than 1.8% by volume by means of a supported palladium catalyst which contains from 0.05 to 10 g of palladium per liter of an inert inorganic carrier, the oxidation reaction being started at a temperature of from 180.degree. to 200.degree. C.
摘要翻译：通过负载的钯催化剂，其中含有不超过1.8体积％的乙烯的气体中的乙烯从每升惰性无机载体中含有0.05至10g钯，从而开始氧化反应温度为180〜200℃。

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