公开(公告)号：US3896097A

公开(公告)日：1975-07-22

申请号：US35208473

申请日：1973-04-17

申请人： SNAM PROGETTI

发明人： PRIOLA ALDO ,  CESCA SEBASTIANO ,  FERRARIS GIUSEPPE

IPC分类号： C08F4/00 ,  C08F4/24 ,  C08F4/42 ,  C08F10/00 ,  C08F210/12 ,  C08D1/26 ,  C08D3/04 ,  C08F3/14

CPC分类号： C08F10/00 ,  C08F4/14

摘要： A method is disclosed for the polymerization of isobutylene and, in particular, the copolymerization of isobutylene and isoprene, by contacting the monomers with a catalyst system constituted by (a) an organoaluminum compound (e.g., Al(C2H5)2Cl) and (b) an oxide or anhydride of an element belonging to Group VI B or VII B of the periodic system (e.g., SO2), in a liquid reaction medium, wherein the molar ratio of compound (b) to compound (a) is less than 1, at a temperature in the range of about -40* to +15*C.

公开(公告)号：US3872069A

公开(公告)日：1975-03-18

申请号：US33994073

申请日：1973-03-09

申请人： SNAM PROGETTI

发明人： PRIOLA ALDO ,  CESCA SEBASTIANO ,  FERRARIS GIUSEPPE

IPC分类号： C08F4/00 ,  C08F4/06 ,  C08F4/42 ,  C08F10/00 ,  C08F210/12 ,  C08D1/26 ,  C08D3/10

CPC分类号： C08F10/00 ,  C08F4/14

摘要： A process is disclosed whereby butyl rubber of high molecular weight and excellent physical characteristics is readily prepared by copolymerizing isobutylene and isoprene in the presence of a catalyst system consisting of: A. A METALORGANIC COMPOUND (E.G., Al Et2 Cl); and B. AN ORGANIC COMPOUND HAVING FROM 1 TO 24 CARBON ATOMS AND AN ELECTRON AFFINITY VALUE IN THE RANGE FROM 0.3 TO 2 ELECTRON VOLTS (E.G., 1.3.5.-TRINITROBENZENE).

摘要翻译： 公开了一种方法，其中通过在由以下组成的催化剂体系的存在下异丁烯和异戊二烯共聚来容易地制备高分子量和优异物理特性的丁基橡胶：