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    • 9. 发明申请
    • Production of 1-butene
    • 1-丁烯的生产
    • US20040181111A1
    • 2004-09-16
    • US10773169
    • 2004-02-09
    • BASF Akiengesellschaft
    • Marcus SiglChristoph Ubler
    • C07C005/13
    • C07C5/2518C07C5/2512C07C6/04C07C2521/04C07C2523/04C07C2529/40C07C11/08
    • Process for producing a 1-butene-containing C4-hydrocarbon stream (1-C4null stream) from a 1-butene- and 2-butene-containing C4-hydrocarbon stream (1- and 2-C4null feed stream) whose 1-butene content is lower than that of the 1-C4null stream, by a) feeding the 1- and 2-C4null feed stream and a 1-butene- and 2-butene-containing C4-hydrocarbon stream (1- and 2-C4null recycle stream) whose 1-butene content is lower than that of the 1-C4null stream and which has been produced by means of step (b) below into a distillation column and taking off the 1-C4null stream and a 2-butene-containing C4-hydrocarbon stream (2-C4null stream) whose 1-butene content is lower than that of the 1- and 2-C4null feed stream and of the 1- and 2-C4null recycle stream from the distillation column (step a) and b) producing the 1 - and 2-C4null recycle stream from the 2-C4null stream by bringing the 2-C4null stream into contact with an isomerization catalyst which catalyzes the conversion of 2-butenes into 1-butene in a reaction zone (step b).
    • 用于从含1-丁烯和2-丁烯的C 4烃流(1-和2- C4 <=>进料流)中生产含1-丁烯的C 4烃流(1-C4 < ),其1-丁烯含量低于1-C4 流的1-丁烯含量,通过a)将1-和2- C4 <=>进料流和含1-丁烯和2-丁烯的C4- 其1-丁烯含量低于1-C4 流的烃流(1-和2-C4 <=>循环料流),并且其已经通过下面的步骤(b)生产进入蒸馏塔 并取出其1-丁烯含量低于1-和2- C4 <= 1的C4-C4流和含2-丁烯的C4-烃流(2-C4 < 进料流和来自蒸馏塔的1和2-C4 <=>循环流(步骤a)和b)从2-C4 <=>流产生1和2-C4 <=>循环流 通过使2-C4 <=>流与异构化催化剂接触,所述异构化催化剂催化将2-丁烯转化为1-丁烯在反应中 n区(步骤b)。
    • 10. 发明申请
    • Aqueous polymer dispersions, their preparation and use
    • 水性聚合物分散体,其制备和用途
    • US20030125459A1
    • 2003-07-03
    • US10316914
    • 2002-12-12
    • BASF Akiengesellschaft
    • Dirk WulffAlexander CentnerGerhard Auchter
    • C08K003/00C08K003/20
    • C08F265/06C08F2/22C08F285/00C08F220/10
    • Described is a process for preparing aqueous polymer dispersions by at least two-stage free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers, comprising: 1. a first polymerization stage, 1, in which a first monomer composition M(1) is polymerized in accordance with a monomer feed technique by adding a free-radical polymerization initiator I(1), giving an aqueous dispersion of a polymer P(1), and 2. a further polymerization stage, 2, in which 2a. a monomer composition M(2) whose makeup is different than that of the monomer composition M(1) is added in undiluted form to the aqueous dispersion of the polymer P(1), and 2b. the monomer composition M(2) is polymerized, and 3. if desired, steps 2a and 2b are repeated to carry out further polymerization stages, i, the total amounts of the monomer M(2) making up from 0.1 to 20% by weight of the monomers M(1) polymerized in stage 1 and the addition of the monomer mixture M(2) not taking place before the end of the addition of the monomer mixture M(1), wherein the polymerization in polymerization stage 2 and any further polymerization stages takes place in the presence of residual amounts of the initiator I(1) added in the 1st stage or by adding further initiator I(1) and from the beginning of step 1 to the end of step 2b in the last polymerization stage the temperature in the reaction vessel is at least 70null C., and also the use of these polymer dispersions for preparing pressure sensitive adhesives.
    • 描述了通过烯键式不饱和单体的至少两步自由基水性乳液聚合制备含水聚合物分散体的方法,其包括:1.第一聚合阶段,其中第一单体组合物M(1)在 根据单体进料技术,通过添加自由基聚合引发剂I(1),得到聚合物P(1)的水分散体,和2.另外的聚合反应阶段,其中2a。 将组成不同于单体组合物M(1)的单体组合物M(2)以未稀释的形式加入到聚合物P(1)和2b的水分散体中。 聚合单体组合物M(2),如果需要,重复步骤2a和2b进行进一步的聚合反应,即,单体M(2)的总量为0.1-20重量% 的单体M(1)在单体混合物M(1)的加入之前没有发生单体混合物M(2)的添加,其中聚合阶段2中的聚合和任何进一步的 聚合阶段在剩余量的第一阶段添加的引发剂I(1)存在下或通过在最后一个聚合阶段再加入引发剂I(1)和从步骤1开始到步骤2b的末端进行, 反应容器中的温度至少为70℃,并且还使用这些聚合物分散体来制备压敏粘合剂。