USE OF A Mo-BASED CATALYST COMPOSITION TO CONTROL THE CHARACTERISTICS OF CONJUGATED DIENE POLYMERS

Title:

USE OF A Mo-BASED CATALYST COMPOSITION TO CONTROL THE CHARACTERISTICS OF CONJUGATED DIENE POLYMERS

Document Type and Number:

WIPO Patent Application WO2001079470

Kind Code:

A3

Abstract:

A catalyst composition that is the combination of or the reaction product of ingredients including (a) a molybdenum-containing compound, (b) a hydrogen phosphite, and (c) a blend of two or more sterically distinct organoaluminum compounds is particularly useful for polymerizing conjugated dienes. When polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene, the ratio of the organoaluminum compounds can be adjusted to vary the melting temperature and molecular weight of the polymer product.

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Inventors:

LUO STEVEN (US)

Application Number:

PCT/US2001/012059

Publication Date:

February 28, 2002

Filing Date:

April 12, 2001

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)
LUO STEVEN (US)

International Classes:

C08F4/69; C08F4/78; C08F36/00; C08F136/06; (IPC1-7): C08F136/06; C08F4/69

Foreign References:

US5548045A	1996-08-20
US4168374A	1979-09-18
US5919875A	1999-07-06

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