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US 12,734,772 B2Granted
Sealant composition for self-sealing pneumatic tire
AssigneeThe Goodyear Tire & Rubber Company
InventorsMichael Lawrence Gersman, George Jim Papakonstantopoulos
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Abstract
A sealant composition suited to forming a sealant layer in a tire includes 100 phr elastomers, including at least 60 phr of an isobutylene-based elastomer component, and at least 5 phr of a conjugated diene-based elastomer component. The sealant composition further includes at least 5 phr of particulate filler, at least 0.5 phr of an organic peroxide, and optionally a colorant which provides the sealant with a non-black color.
Claims17
An uncured pneumatic tire comprising:
- a circumferential tread;
- a supporting carcass attached to the tread;
- a sealant layer comprising a sealant composition, the sealant composition comprising:
- 100 phr elastomers, comprising:
- at least 60 phr of an isobutylene-based elastomer component, and
- at least 5 phr of a conjugated diene-based elastomer component;
- at least 5 phr of particulate filler;
- and
- at least 0.5 phr of an organic peroxide;
- and
- a containment layer, the sealant layer being disposed between the supporting carcass and the containment layer.
8 more elements
Dependencies are inferred from the claim text.