Kraton Polymers U.S. LLC

Joy P Cocchiara

Carl Lesley Willis

Daniel Earl Goodwin

Craig A Stevens

Harvey E Atwood

Pierre Nazareth Tutunjian

Grant W Haddix

Daniel E Goodwin

Pierre N Tutunjian

Disclosed is an anionic diinitiator prepared using a diisopropenyl benzene compound and an organo lithium compound having primary polymerization sites. The anionic diinitiators are prepared by admixing a diisopropenyl benzene compound with diethyl ether, ethylene, an organo lithium compound, and a solvent under reaction conditions sufficient to prepare a diinitiator having primary lithium alkyl reactive sites. The diinitiators are particularly useful in preparing block copolymers.

Organo-dilithium compound and process for preparing the same

Anionic polymerization diinitiator and process for preparing same

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Houston, TX, United States of America

Joy P Cocchiara