公开(公告)号：US06384154B1

公开(公告)日：2002-05-07

申请号：US09744256

申请日：2001-01-31

申请人： Christoph Sigwart ,  Thomas Narbeshuber ,  Eugen Gehrer ,  Rolf Fischer ,  Ulrich Steinbrenner ,  Shelue Liang

发明人： Christoph Sigwart ,  Thomas Narbeshuber ,  Eugen Gehrer ,  Rolf Fischer ,  Ulrich Steinbrenner ,  Shelue Liang

IPC分类号： C08F11010

CPC分类号： C08F110/10 ,  C08F2/00 ,  C08F4/10 ,  C08F4/26 ,  C08F4/24 ,  C08F4/12 ,  C08F4/06 ,  C08F4/18 ,  C08F4/22

摘要： A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 60 mol % and an average molecular weight Mn of 800-3000 dalton by cationic polymerization in the liquid phase of isobutene over an acidic, essentially halogen-free heterogeneous catalyst, where a) a hydrocarbon mixture of essentially C4-hydrocarbons comprising isobutene in an amount of from 10 to 80% by weight is used as the starting material and b) polymerization is carried out continuously at from −30 to 0° C. with average starting material residence times of one hour or less, where the temperature and the residence time are selected such that the isobutene conversion is less than 60% and, after separation from the resulting polyisobutene, the isobutene is either enriched in the partially converted hydrocarbon mixture and returned to the polymerization or passed to another isobutene reaction coupled with the polymerization.

摘要翻译： 一种通过阳离子聚合在异丁烯液相中酸性，基本上不含卤素的方式制备末端双键含量大于60mol％，平均分子量Mn为800-3000道尔顿的无卤素的活性聚异丁烯的方法 非均相催化剂，其中将基本上含有10-80重量％异丁烯的C 4烃的烃混合物用作原料，和b）在-30℃至0℃下连续进行聚合，平均 起始材料停留时间为1小时或更短，其中选择温度和停留时间使得异丁烯转化率小于60％，并且在从所得聚异丁烯分离后，异丁烯富含部分转化的烃混合物， 返回聚合反应或通过与聚合偶联的另一异丁烯反应。

公开(公告)号：US06642329B1

公开(公告)日：2003-11-04

申请号：US10089724

申请日：2002-04-04

申请人： Hans Peter Rath

发明人： Hans Peter Rath

IPC分类号： C08F11010

CPC分类号： C08F110/10 ,  C08F2/00 ,  C08F4/14 ,  C08F2500/02 ,  C08F2500/17

摘要： A process for the continuous preparation of polyisobutene having a number-average molecular weight {overscore (M)}N of from 500 to 50,000 and containing at least 50 mol % of terminal double bonds by one-stage or multistage, continuous polymerization of isobutene in the liquid phase in the presence of a catalyst comprising boron trifluoride and at least one oxygen-containing compound at below +40° C., wherein the liquid reaction phase has a viscosity of from 6 to 20 mm2/s (determined according to DIN 51562), at least in the first polymerization stage, is described.

摘要翻译： 一种连续制备具有数均分子量（超核（MN为500〜50,000，通过一级或多级含有至少50mol％的末端双键）的聚异丁烯的方法，在液相中连续聚合异丁烯 在包含三氟化硼和至少一种含氧化合物在+ 40℃以下的催化剂存在下，其中液体反应相的粘度为6至20mm 2 / s（根据DIN 51562测定 ），至少在第一聚合阶段中。