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US 12,398,217 B2Granted
Rubber composition and pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorsRie Yasuda, Ryoji Matsui
Life of this patent
Estimating the term…
Abstract
Provided are a rubber composition which provides a self-healing rubber with improved strength and wet grip performance, and a pneumatic tire including the rubber composition. The present disclosure relates to a rubber composition containing a rubber component having a functional group containing a cationic functional group and/or an anionic functional group, a filler capable of generating a charge paired with the functional group, and sulfur.
Claims12
A rubber composition, comprising:
- a rubber component having a functional group containing at least one of a cationic functional group or an anionic functional group;
- a filler capable of generating a charge paired with the functional group;
- and
- sulfur;
- wherein the rubber component has:
- a cationic functional group content of 0.5 to 30% by mass, and the filler has an anionic functional group content of 5 to 70% by mass, or
- an anionic functional group content of 0.5 to 30% by mass, and the filler has a cationic functional group content of 10 to 70% by mass, or
- both.
5 more elements
Dependencies are inferred from the claim text.