A method of preparing a tire with self-sealing properties, the method including the steps of providing a cured tire, the tire including a first bead, a second bead, a carcass layer extending from the first bead to the second bead, and an optional innerliner layer disposed interior to the carcass layer; directly or indirectly applying a sealant composition to at least a portion of the carcass layer or to at least a portion of the optional innerliner; and directly applying an air barrier composition to at least a portion of the carcass layer or to at least a portion of the optional innerliner.

In a pneumatic tire, a partial tie rubber layer is disposed between a carcass layer and an innerliner layer in a limited manner across an entire region excluding end portions near a pair of bead portions; end surfaces on both sides in a tire lateral direction of the partial tie rubber layer are inclined surfaces that form an acute angle with respect to a surface of the partial tie rubber layer on the carcass layer side; and an inclination angle of the inclined surfaces with respect to the surface of the partial tie rubber layer on the carcass layer side is from 20 to 60.

The present invention provides a pneumatic tire including a sealant layer that has excellent tear resistance despite its being formed of a generally string-shaped sealant provided continuously and spirally along an inner periphery of the tire. Included is a pneumatic tire including an innerliner and a sealant layer located radially inside the innerliner, the sealant layer including a first sealant layer and a second sealant layer stacked in that order from the innerliner, the first sealant layer including a generally string-shaped sealant provided continuously and spirally along an inner periphery of the tire, the second sealant layer including a generally string-shaped sealant provided continuously and spirally along the first sealant layer, the sealant of the first sealant layer and the sealant of the second sealant layer extending in directions crossing each other.

Provided are a rubber composition for pneumatic tires with excellent fluidity and excellent degradation resistance, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for pneumatic tires containing a rubber component including a halogenated butyl rubber, and an organic peroxide.

Provided are a rubber composition for pneumatic tires which is excellent in adhesion, sealing performance, fluidity, and processability, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for pneumatic tires containing, per 100 parts by mass of a rubber component including a butyl-based rubber: 100 to 400 parts by mass of a liquid polymer; 1 to 40 parts by mass of an organic peroxide; and 1 to 40 parts by mass of a crosslinking activator.

An inflatable tubeless tire includes a carcass, a bead at the lower edge of both sides of the carcass; a cladding layer, continuously covering the bead from the exterior to the interior of the carcass, and both ends of the cladding layer having an overlapped portion between each carcass and a tread and continuously extending to form an external covered portion for covering an area from the outer surface to the bead, and the portion of both sides of the cladding layer covering the interior of the carcass being an internal covered portion, and the uncovered position in the carcass being an elastic portion, and each inner surface in the carcass and the cladding layer jointly forming a gas chamber; at least a separator, partially disposed on a wall surface of the gas chamber for isolating each elastic portion and the inner surface without sticking to one another of the carcass; an air valve module, passing between each opening and the through hole, and having a film fixed to the elastic portion; and an extending part, passing through each film, the cladding layer and the separator; a screw, with an end screwed into the extending part; and the screw having an air valve part therein.

Provided is a pneumatic tire, which includes a tread portion having an annular shape and extending in a tire circumferential direction, a pair of sidewall portions disposed on both sides of the tread portion, a pair of bead portions disposed on inner sides of the pair of sidewall portions in a tire radial direction, and a band-like sound absorbing member bonded to an inner surface of the tread portion along the tire circumferential direction. The band-like sound absorbing member includes a plurality of cuts in an outer circumferential surface of the band-like sound absorbing member. At least one end of each of the cuts terminates within the band-like sound absorbing member.

A tire includes a tread portion; a pair of bead portions; a pair of sidewall portions, each of which extend between the tread portion and a respective bead portion; a carcass that extends from one bead portion to the other, through the sidewall portions and tread portion; and an inner surface that defines a tire cavity; wherein the tread portion comprises a belt disposed outside of the carcass in a radial direction of the tire, the belt comprising one or more belt plies that extend in an axial direction of the tire; wherein each sidewall portion comprises an intermediate layer arranged inward in the tire radial direction from the carcass, wherein each intermediate layer comprises an outer edge that overlaps the belt and an inner edge arranged in the sidewall portion or bead portion; wherein the tire further comprises an inner layer arranged inward in the tire radial direction from the tread portion, the inner layer having a thickness in the radial direction defined by the carcass and inner surface; and wherein the thickness of the inner layer is greater than a thickness between the carcass and inner surface in the sidewall portions.

Provided are a pneumatic tire and a method for manufacturing the pneumatic tire. A partial tie rubber layer is selectively disposed in each region between a carcass layer and an innerliner layer and on both sides in a tire lateral direction of a tread portion excluding a center region of the tread portion. End portions on both sides of the partial tie rubber layers in the tire lateral direction form inclined surfaces acutely angled with respect to a surface of the partial tie rubber layer on the carcass layer side. The inclined surfaces have an inclination angle from 20 to 60 with respect to the surface of the partial tie rubber layer on the carcass layer side.

Provided is a pneumatic tire. A partial tie rubber layer is selectively disposed between a carcass layer and an inner liner layer in an area on a tread portion on either side in a tire lateral direction excluding a center region of the tread portion such that a length of intrusion from a perpendicular line extending from an outermost edge of a belt layer in a tire lateral direction through the inner liner layer toward a tire equator of each of the partial tie rubber layers is within the range from 0 to 15 mm and a length of protrusion from the perpendicular line toward a bead portion of the partial tie rubber layer is within the range from 15 to 120 mm.