Self-healing rubber composition and tire
AssigneeThe Goodyear Tire & Rubber Company
InventorsRalf Mruk, Christian Jean-Marie Kaes, Robert Fokko Roskamp
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Abstract
The present invention is directed to a self-healing rubber composition comprising a functionalized elastomer comprising: a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion; and a partitioned metal ion. The invention is further directed to a pneumatic tire comprising the self-healing rubber composition.
Claims20
A self-healing rubber composition comprising
- a functionalized elastomer comprising:
- a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer;
- and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion;
- and
- a partitioned metal ion.
A self-healing rubber composition comprising
- a functionalized diene-based elastomer of formula I
- XY—Z]n (I)
- wherein X is a polymer derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer,
- Z comprises a multidentate ligand group capable of complexing with a metal ion,
- Y is a divalent group bonded to both X and Z,
- n is the number of Y—Z] groups bonded to X;
- and
- a partitioned metal ion.
Dependencies are inferred from the claim text.