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1. 发明授权

US07737229B2 Continuous preparation of ethylene homopolymers or copolymers 有权
标题翻译：连续制备乙烯均聚物或共聚物
公开(公告)号：US07737229B2
公开(公告)日：2010-06-15
申请号：US10577695
申请日：2004-10-27
申请人： Andrei Gonioukh , Gernot Köhler , Theo Teuber , Thomas Dröge
发明人： Andrei Gonioukh , Gernot Köhler , Theo Teuber , Thomas Dröge
IPC分类号： C08F2/00 , C08F10/14
CPC分类号： C08F10/02 , C08F10/00 , C08F110/02 , C08F2/06 , C08F4/32 , C08F2/00 , C08F4/34 , C08F2/38 , C08F2500/12
摘要： The invention relates to a process for the continuous preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiators and, if desired, molecular weight regulators at from 120° C. to 350° C. and pressures in the range from 100 to 4000 bar, in which the polymer is separated from unpolymerized ethylene in a high-pressure stage at a pressure of from 100 to 500 bar and at least one low-pressure stage at a pressure of from 1 to 100 bar and the ethylene separated off in the high-pressure stage is separated from remaining monomeric, oligomeric and/or polymeric constituents and recirculated to the inlet of the tube reactor in a high-pressure circuit and the ethylene separated off in the low-pressure stage is separated from remaining monomeric, oligomeric and/or polymeric constituents and recirculated to the inlet of the tube reactor in a low-pressure circuit. The initiator is used as a solution in an isoparaffinic solvent having a boiling point of not more than 160° C. and the solvent is separated from the other monomeric, oligomeric and/or polymeric constituents in the low-pressure circuit. The solvent is then, if appropriate after being admixed with fresh solvent, reused for dissolving initiator.
摘要翻译：本发明涉及一种在自由基聚合引发剂存在下连续制备乙烯均聚物或共聚物的方法，如果需要，本发明涉及120℃至350℃的分子量调节剂，并且在100 至4000巴，其中聚合物在100至500巴的压力和至少一个压力为1至100巴的压力下的高压阶段中与未聚合的乙烯分离，乙烯分离在高压阶段与剩余的单体，低聚物和/或聚合物组分分离，并在高压回路中再循环到管式反应器的入口，并将在低压级分离的乙烯与剩余的单体，低聚物和/或聚合物组分，并在低压回路中再循环到管式反应器的入口。引发剂用作沸点不超过160℃的异链烷烃溶剂中的溶液，并将溶剂与低压回路中的其它单体，低聚物和/或聚合物成分分离。如果在与新鲜溶剂混合后适当，溶剂再次用于溶解引发剂。

2. 发明授权

US06844408B2 Preparation of polyethylene 有权
标题翻译：聚乙烯的制备
公开(公告)号：US06844408B2
公开(公告)日：2005-01-18
申请号：US10221202
申请日：2001-03-13
申请人： Andrei Gonioukh , Lars Wittkowski , Thomas Dröge , Ernst Fischer , Roger Klimesch , Philipp Rosendorfer , Gernot Köhler , Dieter Littmann
发明人： Andrei Gonioukh , Lars Wittkowski , Thomas Dröge , Ernst Fischer , Roger Klimesch , Philipp Rosendorfer , Gernot Köhler , Dieter Littmann
IPC分类号： C08F4/38 , C08F10/00 , C08F10/02 , C08F110/02
CPC分类号： C08F10/02 , C08F110/02 , C08F4/38 , C08F4/36 , C08F2/00 , C08F2500/12 , C08F2500/26
摘要： Ethylene homopolymers and copolymers are prepared in a tube reactor at from 160° C. to 350° C. and pressures in the range from 500 to 5000 bar, with or without use of molar mass regulators, using a peroxide mixture comprising from 1 to 95 mol %, based on the total amount of the peroxide mixture, of at least one cyclic peroxide of the formula I, where the radicals R are identical or different and are selected from among alkyl groups and aryl groups, as polymerization initiator.
摘要翻译：乙烯均聚物和共聚物在管式反应器中在160℃至350℃下制备，压力范围为500至5000巴，使用或不使用摩尔质量调节剂，使用包含1至95的过氧化物混合物摩尔％，基于过氧化物混合物的总量，至少一种式I的环状过氧化物，其中基团R相同或不同，并且选自烷基和芳基，作为聚合引发剂。

3. 发明授权

US06815571B1 Method for producing ethylene polymers in a high-pressure process 有权
标题翻译：在高压工艺中生产乙烯聚合物的方法
公开(公告)号：US06815571B1
公开(公告)日：2004-11-09
申请号：US10466117
申请日：2003-07-23
申请人： Lars Wittkowski , Andreas Deckers , Wilhelm Weber , Thomas Dröge , Andrei Gonioukh , Frank-Olaf Mähling
发明人： Lars Wittkowski , Andreas Deckers , Wilhelm Weber , Thomas Dröge , Andrei Gonioukh , Frank-Olaf Mähling
IPC分类号： C07C202
CPC分类号： A61Q1/06 , A61K8/8111 , A61Q1/02 , A61Q1/10 , C08F10/02 , C08F110/02 , C08K5/07 , C08K5/14 , Y10S585/946 , C08F4/36 , C08F2/00
摘要： A process for preparing ethylene polymers by the high-pressure method comprises dissolving one or more free-radical initiators in one or more ketones of the formula I where R1 and R2 are identical or different and are selected from among C1-C6-alkyl and C3-C12-cycloalkyl and R1 and R2 may also be covalently linked to one another to form a 4- to 13-membered ring, prior to the polymerization, compressing the solution, metering it into the polymerization reactor at one or more points and subsequently carrying out the polymerization at from 150 to 380° C. and from 500 to 4500 bar.
摘要翻译：通过高压法制备乙烯聚合物的方法包括将一种或多种自由基引发剂溶解在一种或多种式I的酮中，其中R 1和R 2相同或不同，并且选自C1- C6-烷基和C3-C12-环烷基，并且R 1和R 2也可以彼此共价连接以形成4-至13-元环，在聚合之前，将溶液压缩，将其计量聚合反应器在一个或多个点处，随后在150至380℃和500至4500巴下进行聚合反应。

4. 发明授权

US06949611B2 Preparation of ethylene polymers by the high-pressure method 失效
标题翻译：通过高压法制备乙烯聚合物
公开(公告)号：US06949611B2
公开(公告)日：2005-09-27
申请号：US10845396
申请日：2004-05-14
申请人： Lars Wittkowski , Andreas Deckers , Wilhelm Weber , Thomas Dröge , Andrei Gonioukh , Frank-Olaf Mähling
发明人： Lars Wittkowski , Andreas Deckers , Wilhelm Weber , Thomas Dröge , Andrei Gonioukh , Frank-Olaf Mähling
IPC分类号： C08F2/00 , C08F2/38 , C08F10/00 , C08F10/02 , C08F110/02 , C08K5/07 , C08K5/14 , C08F2/02
CPC分类号： A61Q1/06 , A61K8/8111 , A61Q1/02 , A61Q1/10 , C08F10/02 , C08F110/02 , C08K5/07 , C08K5/14 , Y10S585/946 , C08F4/36 , C08F2/00
摘要： A process for preparing ethylene polymers by the high-pressure method comprises dissolving one or more free-radical initiators in one or more ketones of the formula I where R1 and R2 are identical or different and are selected from among C1-C6-alkyl and C3-C12-cycloalkyl and R1 and R2 may also be covalently linked to one another to form a 4- to 13-membered ring, prior to the polymerization, compressing the solution, metering it into the polymerization reactor at one or more points and subsequently carrying out the polymerization at from 150 to 380° C. and from 500 to 4500 bar.
摘要翻译：通过高压法制备乙烯聚合物的方法包括将一种或多种自由基引发剂溶解在式I中的一种或多种酮中，其中R 1和R 2，相同或不同，并且选自C 1 -C 6 - C 6 - 烷基和C 3 -C 12 - 环烷基和R 1和R 2可以在聚合之前彼此共价连接以形成4-至13-元环，压缩溶液，在一个或多个点将其计量到聚合反应器中，随后在150至380℃和500至4500巴下进行聚合。

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