Aged lanthanide-based catalyst systems and their use in the preparation of cis-1,4-polydienes

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United States of America Patent

PATENT NO 10774162
APP PUB NO 20180009918A1
SERIAL NO

15546957

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Abstract

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A method for preparing cis-1,4-polydienes, the method comprising the steps of preparing a preformed, active lanthanide-based catalyst, aging the active lanthanide-based catalyst for more than 5 days to thereby formed an aged catalyst, and introducing the aged catalyst and conjugated diene monomer to be polymerized to thereby form an active polymerization mixture in which the conjugated diene monomer is polymerized to form a polydiene having a reactive chain end.

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Patent Owner(s)

  • BRIDGESTONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abell, Joshua Franklin, US 19 58
Dickstein, Joshua S Copley, US 16 21
Kocsis, Laura S Copley, US 12 3
Luo, Steven - 142 1541
McCauley, Kevin Akron, US 9 63

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