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    • 8. 发明授权
    • Process for producing high vinylidene polyisobutylene
    • 制备高亚乙烯基聚异丁烯的方法
    • US06683138B2
    • 2004-01-27
    • US10334639
    • 2002-12-31
    • C. Edward Baxter, Jr.Gilbert ValdezChristopher LobueTimothy Lowry
    • C. Edward Baxter, Jr.Gilbert ValdezChristopher LobueTimothy Lowry
    • C08F414
    • B01J19/2425B01J19/243B01J19/2465B01J2219/00063B01J2219/00065B01J2219/00069B01J2219/00099B01J2219/00114B01J2219/00166C08F10/00C08F10/10C08F110/10C08F110/14C08F210/10C08F4/14C08F2500/20C08F2500/02C08F210/08
    • A liquid phase polymerization process for preparing low molecular weight, highly reactive polyisobutylene. The process includes the steps of providing a feedstock containing isobutylene and a catalyst composition made up of a complex of BF3 and a complexing agent. The feedstock and the catalyst composition are introduced into a residual reaction mixture in a reaction zone where the residual reaction mixture, the feedstock and the catalyst composition are intimately intermixed so as to present an intimately intermixed reaction admixture in said reaction zone. The intimately intermixed reaction admixture is maintained in its intimately intermixed condition and kept at a temperature of at least about 0° C. while the same is in the reaction zone, whereby the isobutylene therein is polymerized to form polyisobutylene having a high degree of terminal unsaturation. A product stream is withdrawn from the reaction zone. The introduction of feedstock into the reaction zone and the withdrawal of the product stream from the reaction zone are controlled such that the residence time of the isobutylene undergoing polymerization in the reaction zone is no greater than about 4 minutes whereby the product stream contains a low molecular weight, highly reactive polyisobutylene product. Preferably the reaction may be conducted on the tube side of a shell-and-tube exchanger in which a coolant is circulated on the shell side.
    • 一种用于制备低分子量,高反应性聚异丁烯的液相聚合方法。 该方法包括提供含有异丁烯的原料和由BF 3的络合物和络合剂组成的催化剂组合物的步骤。 将原料和催化剂组合物引入到反应区中的残余反应混合物中,其中残余反应混合物,原料和催化剂组合物紧密混合,以便在所述反应区中呈现紧密混合的反应混合物。 将紧密混合的反应混合物保持在其紧密混合的状态,并保持在至少约0℃的温度,同时在反应区中,由此其中的异丁烯聚合形成具有高度末端不饱和度的聚异丁烯 。 产物流从反应区中取出。 控制将原料引入反应区和从反应区抽出产物流,使得在反应区中进行聚合的异丁烯的停留时间不大于约4分钟,由此产物流含有低分子量 重量,高反应性聚异丁烯产物。 优选地,反应可以在其中冷却剂在壳侧循环的管壳式换热器的管侧进行。
    • 9. 发明授权
    • Process for producing high vinylidene polyisobutylene
    • 制备高亚乙烯基聚异丁烯的方法
    • US06562913B1
    • 2003-05-13
    • US09515790
    • 2000-02-29
    • C. Edward Baxter, Jr.Gilbert ValdezChristopher LobueTimothy Lowry
    • C. Edward Baxter, Jr.Gilbert ValdezChristopher LobueTimothy Lowry
    • C08F414
    • B01J19/2425B01J19/243B01J19/2465B01J2219/00063B01J2219/00065B01J2219/00069B01J2219/00099B01J2219/00114B01J2219/00166C08F10/00C08F10/10C08F110/10C08F110/14C08F210/10C08F4/14C08F2500/20C08F2500/02C08F210/08
    • A liquid phase polymerization process for preparing low molecular weight, highly reactive polyisobutylene. The process includes the steps of providing a feedstock containing isobutylene and a catalyst composition made up of a complex of BF3 and a complexing agent. The feedstock and the catalyst composition are introduced into a residual reaction mixture in a reaction zone where the residual reaction mixture, the feedstock and the catalyst composition are intimately intermixed so as to present an intimately intermixed reaction admixture in said reaction zone. The intimately intermixed reaction admixture is maintained in its intimately intermixed condition and kept at a temperature of at least about 0° C. while the same is in the reaction zone, whereby the isobutylene therein is polymerized to form polyisobutylene having a high degree of terminal unsaturation. A product stream is withdrawn from the reaction zone. The introduction of feedstock into the reaction zone and the withdrawal of the product stream from the reaction zone are controlled such that the residence time of the isobutylene undergoing polymerization in the reaction zone is no greater than about 4 minutes whereby the product stream contains a low molecular weight, highly reactive polyisobutylene product. Preferably the reaction may be conducted on the tube side of a shell-and-tube exchanger in which a coolant is circulated on the shell side.
    • 一种用于制备低分子量,高反应性聚异丁烯的液相聚合方法。 该方法包括提供含有异丁烯的原料和由BF 3的络合物和络合剂组成的催化剂组合物的步骤。 将原料和催化剂组合物引入到反应区中的残余反应混合物中,其中残余反应混合物,原料和催化剂组合物紧密混合,以便在所述反应区中呈现紧密混合的反应混合物。 将紧密混合的反应混合物保持在其紧密混合的状态,并保持在至少约0℃的温度,同时在反应区中,由此其中的异丁烯聚合形成具有高度末端不饱和度的聚异丁烯 。 产物流从反应区中取出。 控制将原料引入反应区和从反应区抽出产物流,使得在反应区中进行聚合的异丁烯的停留时间不大于约4分钟,由此产物流含有低分子量 重量,高反应性聚异丁烯产物。 优选地,反应可以在其中冷却剂在壳侧循环的管壳式换热器的管侧进行。