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US 9,540,463 B2Granted
Method for producing polydienes and polydiene copolymers with reduced cold flow
AssigneeBridgestone Corporation
InventorSteven Luo
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Abstract
A method for preparing a coupled polymer, the method comprising the steps of (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imide compound containing an oxiranyl group.
Claims24
A method for preparing a coupled polymer, the method comprising the steps of:
- (i) polymerizing monomer to form a reactive polymer;
- and
- (ii) reacting the reactive polymer with an imide compound containing an oxiranyl group.
A method for preparing a coupled polymer, the method comprising the steps of:
- (i) polymerizing conjugated diene monomer, and optionally monomer copolymerizable therewith, to form polymer having a reactive chain end;
- and
- (ii) reacting the reactive chain end of the polymer with an imide compound containing an oxiranyl group.
A coupled polymer prepared by the steps of:
- (i) polymerizing monomer to form a reactive polymer;
- and
- (ii) reacting the reactive polymer with an imide compound containing an oxiranyl group.
Dependencies are inferred from the claim text.