发明名称 |
PROCESS FOR MAKING A DILITHIUM INITIATOR, AND THE USE THEROF |
摘要 |
This invention concerns a process for making a dilithium initiator which comprises mixing together a di(1-{alkyl or aryl}ethylene)arene compound and diethylether and then adding the mixture to (a) a secondary lithium alkyl and/or (b) a tertiary lithium alkyl to allow the same to react at a temperature of from (a) 40 to 50 DEG C or (b) 25 to 50 DEG C such that the molar ratio of diethylether to lithium alkyl is from 0.1:1 to (a) 1.5:1 or (b) 2:1 and the molar ratio of di(1-{alkyl or aryl}ethylene)arene compound to lithium alkyl is from 0.4:1 to 0.6:1. It also concerns the use thereof in the preparation of anionically polymerized polymers.
|
申请公布号 |
WO0022004(A1) |
申请公布日期 |
2000.04.20 |
申请号 |
WO1999EP07758 |
申请日期 |
1999.10.07 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
HADDIX, GRANT, WESLEY;SCHISLA, DAVID, KARL;WILLIS, CARL, LESLEY |
分类号 |
C07C2/88;C07B61/00;C07C15/113;C07C15/12;C07F1/02;C08F4/48;C08F36/04;(IPC1-7):C08F4/48 |
主分类号 |
C07C2/88 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|