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US 11,299,605 B2Granted
Heavy duty pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorShingo Himeda
Life of this patent
Estimating the term…
Abstract
Provided is a heavy duty pneumatic tire having excellent abrasion resistance. The heavy duty pneumatic tire includes a tread portion including a rubber composition containing: an isoprene rubber; a butadiene rubber; a styrene-butadiene rubber; and a carbon black having an average particle size of 20 nm or less and/or a cetyltrimethylammonium bromide adsorption specific surface area of 130 m2/g or more, the tread portion having a land ratio of 81% or higher.
Claims5
A heavy duty pneumatic tire, comprising a tread portion,
- the tread portion comprising a rubber composition containing:
- an isoprene rubber;
- a butadiene rubber;
- a styrene-butadiene rubber;
- and
- a carbon black having at least one of
- an average particle size of 20 nm or less or
- a cetyltrimethylammonium bromide adsorption specific surface area of 130 m2/g or more,
- entire tread portion having a land ratio of 81% or higher;
- wherein the rubber composition has abrasion resistance index of 140 or higher.
7 more elements
Dependencies are inferred from the claim text.