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US 2019/0169330 A1Published application
Process For Producing High Cis-1,4-Polydiene With Lanthanide-Based Catalyst Compositions
AssigneeBridgestone Corporation
InventorZengquan Qin
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Abstract
A method for producing a polydiene, the method comprising the step of: polymerizing conjugated diene monomer with a lanthanide-based catalyst system in the presence of a hydrocarbyloxysilane.
Claims21
A method for producing a polydiene, the method comprising the step of:
- polymerizing conjugated diene monomer with a lanthanide-based catalyst system in the presence of a hydrocarbyloxysilane.
(canceled)
A method for producing a polydiene, the method comprising the steps of:
- (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source;
- and
- (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and a hydrocarbyloxysilane compound.
Dependencies are inferred from the claim text.