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US 9,850,328 B2Granted
Polymers functionalized with heterocyclic imines
AssigneeBridgestone Corporation
InventorsSteven Luo, Joshua S. Dickstein, Joshua P. Abell
Life of this patent
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Abstract
A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group.
Claims24
A method for preparing a functionalized polymer, the method comprising the steps of:
- (i) polymerizing monomer to form a reactive polymer, and
- (ii) reacting the reactive polymer with an imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group;
- where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group is defined by the formula I:
- where Θ is a heterocyclic group, R1 is a bond or a divalent organic group, R2 is a hydrogen atom or a monovalent organic group, R3 is a bond or divalent organic group, each R4 is independently a hydrogen atom, a halogen atom, a monovalent organic group, a hydrocarbyloxy group, or a silyloxy group, or where two or more R4 groups join to form a divalent, trivalent or tetravalent organic group, with the proviso that at least one R4 is a hydrocarbyloxy or silyloxy group.
1 more element
A method for preparing a functionalized polymer, the method comprising the steps of:
- (i) polymerizing conjugated diene monomer, and optionally monomer copolymerizable therewith, to form a polymer having a reactive chain end;
- and
- (ii) reacting the reactive chain end of the polymer with an imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group;
- where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group is defined by the formula I:
- where Θ is a heterocyclic group, R1 is a bond or a divalent organic group, R2 is a hydrogen atom or a monovalent organic group, R3 is a bond or divalent organic group, each R4 is independently a hydrogen atom, a halogen atom, a monovalent organic group, a hydrocarbyloxy group, or a silyloxy group, or where two or more R4 groups join to form a divalent, trivalent or tetravalent organic group, with the proviso that at least one R4 is a hydrocarbyloxy or silyloxy group.
2 more elements
A functionalized polymer prepared by the steps of:
- (i) polymerizing conjugated diene monomer, and optionally monomer copolymerizable therewith, to form a polymer having a reactive chain end;
- and
- (ii) reacting the reactive chain end of the polymer with an imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group;
- where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group is defined by the formula I:
- where Θ is a heterocyclic group, R1 is a bond or a divalent organic group, R2 is a hydrogen atom or a monovalent organic group, R3 is a bond or divalent organic group, each R4 is independently a hydrogen atom, a halogen atom, a monovalent organic group, a hydrocarbyloxy group, or a silyloxy group, or where two or more R4 groups join to form a divalent, trivalent or tetravalent organic group, with the proviso that at least one R4 is a hydrocarbyloxy or silyloxy group.
2 more elements
A method for preparing a functionalized polymer, the method comprising the steps of:
- (i) polymerizing monomer to form a reactive polymer, and
- (ii) reacting the reactive polymer with an imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group;
- where the hydrocarbyloxy-substituted or silyloxy-substituted aryl group contains a hydrocarbyloxy or silyloxy substituent at the 2 position.
Dependencies are inferred from the claim text.