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公开(公告)号：US5587423A
公开(公告)日：1996-12-24
申请号：US135406
申请日：1993-10-13
IPC分类号： C08F297/04
CPC分类号： C08F297/04
摘要： In a process for preparing block copolymers of styrene or its equivalents on the one hand and of butadiene or its equivalents on the other hand by sequential anionic polymerization, in which a first monomer and the organometallic compound serving as initiator are first of all combined to form a reaction mixture and the reaction is continued until at least part of the first monomer has been consumed, and then at least one further monomer is added and is in each case partially or completely reacted, the polymerization is carried out continuously in a conventional manner in a tubular reactor, the reaction of in each case one monomer being carried out in each case in one reactor section and at least two reactor sections being separated by a mixing stretch.
摘要翻译： 在一方面通过连续阴离子聚合制备苯乙烯或其等同物的丁二烯或其等同物的嵌段共聚物的方法，其中第一单体和用作引发剂的有机金属化合物首先组合形成 反应混合物并继续反应直到至少部分第一单体已被消耗，然后加入至少一种其它单体，并且在每种情况下部分或完全反应，聚合以常规方式在 管状反应器，在每种情况下的反应中，一种单体在每种情况下在一个反应器部分中进行，并且至少两个反应器部分通过混合拉伸分离。
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公开(公告)号：US5391655A
公开(公告)日：1995-02-21
申请号：US136931
申请日：1993-10-19
CPC分类号： B01J19/242 , C08F12/04 , B01J2219/00103
摘要： A process is described for preparing styrene polymers by continuous anionic polymerization, the monomer or monomers and the organometallic compound serving as starter (initiator) being added in solution to a tubular reactor operating essentially without backmixing and being left in the reactor until the monomer has been consumed, wherein the polymerization is carried out in at least two successive tubular reactor sections operating in each case essentially adiabatically, with in each case at least one heat exchanger arranged between the sections. If desired a proportion of the starter and/or of the monomer is added to at least one reactor connected downstream of the first reactor.
摘要翻译： 描述了通过连续阴离子聚合制备苯乙烯聚合物的方法，将单体或单体和用作起始物的有机金属化合物（引发剂）加入到基本上不进行回混的管式反应器中，并保留在反应器中，直到单体已经 消耗，其中聚合在至少两个连续的管式反应器段中进行，每个反应器段在每种情况下基本上绝热地进行，在每种情况下，至少一个热交换器布置在两部分之间。 如果需要，将起始物和/或单体的一部分加入到连接在第一反应器下游的至少一个反应器中。
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3.发明授权Continuous process for polymerizing anionically polymerizable vinyl compounds 失效用于聚合阴离子聚合的乙烯基化合物的连续方法
公开(公告)号：US5717040A
公开(公告)日：1998-02-10
申请号：US859235
申请日：1997-05-20
摘要： Anionically (co)polymerizable vinyl or diene compounds are polymerized in solution and in a reaction zone in the form of a flow tube, using an organometallic initiator, by a continuous process in which the reaction takes place essentially without heat exchange with the environment, the residence time is less than 5 minutes and the reaction zone contains no moving parts.
摘要翻译： 阴离子（共）可聚合的乙烯基或二烯化合物在溶液中和在流动管的形式的反应区中使用有机金属引发剂通过其中反应基本上与环境没有热交换的连续方法聚合， 停留时间小于5分钟，反应区不含运动部件。
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公开(公告)号：US5902865A
公开(公告)日：1999-05-11
申请号：US851353
申请日：1997-05-06
CPC分类号： B01J19/2435 , C08F12/04 , B01J2219/00094
摘要： In a process for preparing polystyrene by continuous anionic polymerization of styrene monomer by means of a catalyst based on a metal alkyl preferably in the presence of a solvent at a temperature in the range from 30 to 70.degree. C., the styrene monomer is fed to an essentially isothermally operated circulation reactor configured as a closed tube loop which has, for example, a specific cooling area of at least 50 m.sup.2 per m.sup.3 of reactor volume, with the circulation velocity of the reaction mixture and the residence time being set such that the monomer conversion reaches at least 50% and the polymerization is completed in an essentially backmixing-free tube reactor.
摘要翻译： 在通过苯乙烯单体通过基于金属烷基的催化剂的连续阴离子聚合制备聚苯乙烯的方法中，优选在溶剂存在下，在30至70℃的温度下，将苯乙烯单体进料至 基本上是等温操作的循环反应器，其构造为封闭管回路，其具有例如每立方米反应器体积至少50m 2的比冷却面积，反应混合物的循环速度和停留时间被设定为使得 单体转化率达到至少50％，并且在基本上无回混的管式反应器中完成聚合。
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公开(公告)号：US5766288A
公开(公告)日：1998-06-16
申请号：US505278
申请日：1995-10-06
申请人： Reiner Thiele , Henrik Badt
发明人： Reiner Thiele , Henrik Badt
CPC分类号： B32B7/02 , B01D39/1623 , B01D69/12 , B32B27/02 , B32B27/32 , B32B5/10 , B32B5/26 , D04H13/00 , B01D2239/0622 , B01D2239/064 , B01D2239/065 , B01D2239/1233 , B01D2239/1291
摘要： Multilayered filter material is provided with at least two layers having different filter properties (coarse filter layer and fine filter layer), for which the separation ratio of the coarse filter layer is selected depending on the number of layers of the filter material as well as the total separation ratio of the complete filter material. The separation ratio of the first layer is proportioned such that at least 20% of the total particles are filtered out by it. The first layer has a porosity of at least 95%. For the remaining filtration of the fine particles, at least one fine filter layer is present, which has a porosity of somewhat greater than 85%.
摘要翻译： PCT No.PCT / DE94 / 01552 Sec。 371日期1995年10月6日 102（e）日期1995年10月6日PCT 1994年12月28日PCT公布。 第WO95 / 17946号公报 日期1995年8月25日多层过滤材料具有至少两层具有不同过滤性能（粗过滤层和精细过滤层），根据过滤层的层数选择粗过滤层的分离比 材料以及完全过滤材料的总分离比。 第一层的分离比例成比例，使得至少20％的总颗粒被其过滤掉。 第一层具有至少95％的孔隙率。 对于细颗粒的剩余过滤，存在至少一个精细过滤层，其具有稍大于85％的孔隙率。
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