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US 6,610,804 B2Granted
Iron-based catalyst composition for the manufacture of syndiotactic 1, 2-polybutadiene
AssigneeBridgestone Corporation
InventorsSteven Luo, David E. Zak
Life of this patent
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Abstract
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an iron-containing compound, (b) an α-acylphosphonate diester, and (c) an organoaluminum compound.
Claims20
A catalyst composition that is the combination of or the reaction product of ingredients comprising:
- (a) an iron-containing compound;
- (b) an α-acylphosphonate diester;
- and
- (c) an organoaluminum compound.
1 more element
A catalyst composition formed by a process comprising the step of combining:
- (a) an iron-containing compound;
- (b) an α-acylphosphonate diester;
- and
- (c) an organoaluminum compound.
1 more element
A process for forming conjugated diene polymers comprising the step of:
- polymerizing conjugated diene monomers in the presence of a catalytically effective amount of a catalyst composition formed by combining:
- (a) an iron-containing compound;
- (b) an α-acylphosphonate diester;
- and
- (c) an organoaluminum compound.
2 more elements
Dependencies are inferred from the claim text.