申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0675153A1
公开(公告)日:1995-10-04
The present invention provides star-shaped polymers comprising cores of polymerised diisopropenylbenzene and at least three polymeric arms connected to each core, the polymeric arms comprising polyisobutylene; a process for their preparation; and lubricating oil compositions containing them.
Scope and limitations of aliphatic Friedel-Crafts alkylations. Lewis acid catalyzed addition reactions of alkyl chlorides to carbon-carbon double bonds
作者:Herbert Mayr、Wilhelm Striepe
DOI:10.1021/jo00156a003
日期:1983.4
Process for the preparation of star-shaped polymers
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0675153B1
公开(公告)日:2001-06-13
US5458796A
申请人:——
公开号:US5458796A
公开(公告)日:1995-10-17
Penultimate Effect in the Initiation of the Cationic Polymerization of Isobutylene: Kinetic Study of Initiation with (3-Chloro-1,1,3-trimethylbutyl)benzene