Methods for producing polydienes

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United States of America Patent

PATENT NO 11084892
APP PUB NO 20190276570A1
SERIAL NO

16345861

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Abstract

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Methods are described for the preparation of polymers using a lanthanide-based coordination catalyst and arresting polymerization using a reduced amount of a Lewis base while retaining the reactivity of the polymer chain ends toward functionalization agents. The Lewis base is a meso-enriched oxolanyl Lewis base. The resulting functionalized polymer has a higher level of purity and can be used in products such as tires.

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Patent Owner(s)

Patent OwnerAddress
BRIDGESTONE CORPORATIONCHUO-KU TOKYO 104-8340

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hogan, Terrence E Uniontown, US 128 1032
McCauley, Kevin M Akron, US 33 214

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