Eco tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorsNaohiko Kikuchi, Kazuo Hochi, Takuya Horiguchi
Life of this patent
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Abstract
An earth-friendly tire using raw materials derived from non-petroleum resources instead of all or part of raw materials derived from petroleum resources currently used for tires. The tire is prepared by using a natural rubber instead of a synthetic rubber; an inorganic filler and/or a biofiller instead of carbon black; vegetable oil instead of petroleum oil; and natural fiber instead of synthetic fiber so that the tire comprises a non-petroleum raw material in an amount of at least 75% by weight based on the total weight of the tire.
Claims4
A tire comprising a raw material derived from a non-petroleum resource in an amount of at least 75% by weight based on the total weight of said tire;
- and
- at least 75% by weight of all of tread, sidewall, case topping, inner liner, breaker topping and bead members of said tire are composed of a raw material derived from a non-petroleum resource containing:
- a natural rubber,
- an inorganic filler and/or a biofiller, and
- a vegetable oil,
- wherein said biofiller is a vegetable polysaccharide or an animal polysaccharide, and
- a non-petroleum raw material is used instead of synthetic fiber and is used for a carcass cord of said tire.
A tire comprising raw materials derived from non-petroleum resources, wherein at least 75% by weight of all of a tread, sidewall, case topping, inner liner, breaker topping and bead members of said tire comprises a raw material derived from a non-petroleum resource containing:
- a natural rubber,
- an inorganic filler and/or a biofiller of a vegetable polysaccharide or an animal polysaccharide, and
- a vegetable oil;
- wherein a carcass cord of said tire comprises a raw material derived from a non-petroleum resource;
- and
- wherein at least 75% by weight based on the total weight of said tire has the raw materials derived from non-petroleum resources.
Dependencies are inferred from the claim text.