06103842 is referenced by 30 patents and cites 7 patents.

The process and catalyst system of this invention can be utilized to synthesize a highly random styrene-butadiene rubber having a high trans content by solution polymerization. The styrene-butadiene rubber made by the process of this invention can be utilized in tire tread rubbers that exhibit improved wear characteristics. This invention more specifically reveals a catalyst system for use in exothermal polymerizations which consists essentially of (a) an organolithium compound, (b) a barium alkoxide and (c) a lithium alkoxide. The subject invention further discloses a process for synthesizing a random styrene-butadiene rubber having a low vinyl content by a process which comprises copolymerizing styrene and 1,3-butadiene under isothermal conditions in an organic solvent in the presence of a catalyst system which consists essentially of (a) an organolithium compound, (b) a barium alkoxide and (c) a lithium alkoxide.

Title
Process and catalyst system for synthesizing random trans SBR with low vinyl microstructure
Application Number
9/72492
Publication Number
6103842
Application Date
May 4, 1998
Publication Date
August 15, 2000
Inventor
Laurie Elizabeth Austin
Hartville
OH, US
Wen Liang Hsu
Cuyahoga Falls
OH, US
Adel Farhan Halasa
Bath
OH, US
Agent
Alvin T Rockhill
Assignee
The Goodyear Tire & Rubber Company
OH, US
IPC
C08F 36/06
C08F 4/50
View Original Source