Back to results
US 2010/0160489 A1Published application
Rubber composites for tire treads and tire
AssigneeHonda Motor Co., Ltd.
InventorsTakeshi Hotaka, Tetsuya Mizone, Emiko Mogi, Shinya Notomi
Life of this patent
Estimating the term…
Abstract
The rubber composites for tire treads include silica; carbon black; and oil constituents, wherein a ratio (A index) of silica contents, carbon black contents, and oil constituents contents is found by: A index=silica contents/(carbon black contents+silica contents+oil constituents contents)≧0.8 relational expression (1); and a ratio (B index) of a complex elastic modulus E* at 30° C. and a loss tangent tan δ at 60° C. is found by: B index=E*/tan δ≧120 relational expression (2).
Claims2
Rubber composites for tire treads comprising:
- silica;
- carbon black;
- and
- oil constituents,
- wherein a ratio (A index) of silica contents, carbon black contents, and oil constituents contents is found by:
- A index=silica contents/(carbon black contents+silica contents+oil constituents contents)≧0.8 relational expression (1);
- and a ratio (B index) of a complex elastic modulus E* at 30° C. and a loss tangent tan δ at 60° C. is found by:
- B index=E*/tan δ≧120 relational expression (2).
5 more elements
Dependencies are inferred from the claim text.