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US 6,320,004 B1Granted
Manufacture of conjugated diene polymers by using an iron-based catalyst composition
AssigneeBridgestone Corporation
InventorSteven Luo
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 iron-containing compound, an organomagnesium compound, and a silyl phosphonate.
Claims20
A catalyst composition that is the combination of or the reaction product of ingredients comprising:
- (a) a iron-containing compound;
- (b) an organomagnesium compound;
- and
- (c) a silyl phosphonate.
1 more element
A catalyst composition formed by a process comprising the steps of combining:
- (a) a iron-containing compound;
- (b) an organomagnesium compound;
- and
- (c) a silyl phosphonate.
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) a iron-containing compound;
- (b) an organomagnesium compound;
- and
- (c) a silyl phosphonate.
2 more elements
Dependencies are inferred from the claim text.