Compound for body ply skim
AssigneeBridgestone Europe NV/SA [BE/BE]
InventorPaolo Fiorenza
Life of this patent
Estimating the term…
Abstract
A rubber compound for body ply skim comprising: —a mix of rubber consisting of (i) Epoxidized Natural Rubber acting as polymer base with a cross-linkable unsaturated chain; (ii) Natural Rubber acting as polymer base with a cross-linkable unsaturated chain; (iii) Polyepihalohydrin rubber, —a filler material, and—a vulcanization system; The compound comprises: 70 to 90 phr of said Polyepihalohydrin rubber; 5 to 25 phr of said Epoxidized Natural Rubber (E-NR); and 5 to 25 phr of said Natural Rubber (NR); the phr ratio between E-NR and NR ranging from 0.2 to 5.0.
Claims20
1-9. (canceled)
A rubber compound for a body ply skim comprising:
- a mixture of rubber consisting of:
- Epoxidized Natural Rubber (E-NR) acting as polymer base with a cross-linkable unsaturated chain,
- Natural Rubber (NR) acting as polymer base with a cross-linkable unsaturated chain, and
- Polyepihalohydrin rubber;
- a filler material;
- a vulcanization system;
- and
- wherein the compound comprises 70 phr to 90 phr of the Polyepihalohydrin rubber, 5 phr to 25 phr of the E-NR, and 5 phr to 25 phr of the NR, with a phr ratio between the E-NR and the NR ranging from 0.2 to 5.0.
A body ply skim comprising a rubber compound, the rubber compound including:
- a mixture of rubber consisting of:
- Epoxidized Natural Rubber (E-NR) acting as a polymer base with a cross-linkable unsaturated chain,
- Natural Rubber (NR) acting as a polymer base with a cross-linkable unsaturated chain, and
- Polyepihalohydrin rubber;
- a filler material;
- and
- a vulcanization system,
- wherein the compound comprises 70 phr to 90 phr of the Polyepihalohydrin rubber, 5 phr to 25 phr of the E-NR, and 5 phr to 25 phr of the NR, with a phr ratio between the E-NR and the NR ranging from 0.2 to 5.0.
A tire comprising:
- a carcass located within the tire;
- an innerliner layer configured to contain air in the carcass such that the carcass remains under pressure;
- a body ply skim in contact with the innerliner layer and configured to provide support to the carcass;
- the body ply skim comprising a rubber compound, the rubber compound including:
- a mixture of rubber consisting of:
- Epoxidized Natural Rubber (E-NR) acting as a polymer base with a cross-linkable unsaturated chain,
- Natural Rubber (NR) acting as a polymer base with a cross-linkable unsaturated chain, and
- Polyepihalohydrin rubber;
- a filler material;
- and
- a vulcanization system,
- wherein the compound comprises 70 phr to 90 phr of the Polyepihalohydrin rubber, 5 phr to 25 phr of the E-NR, and 5 phr to 25 phr of the NR, with a phr ratio between the E-NR and the NR ranging from 0.2 to 5.0.
Dependencies are inferred from the claim text.