Provided is a pneumatic tire having sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by applying a sealant to the inner periphery of a tire from which mold release agents have been removed.

A tire sealant composition for use in tubeless tires is disclosed. The tire sealant composition primarily serves to seal the tire around the wheel rim and particularly in the tread area of the tire against punctures. The composition includes polymeric material, carrier fluid and particulate system. The tire sealant composition is flowable, non-toxic, non-corrosive and thermally stable.

Provided is a pneumatic tire in which a sealant layer entirely exhibits sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by continuously and spirally applying a generally string-shaped sealant to the inner periphery of a tire in the tire width direction from one side to the other, the attachment start portion of the sealant being located tire-widthwise inward from the tire-widthwise end of the sealant layer.

The process includes a non-crosslinked self-sealing composition which is introduced into an extrusion means, the geometric and thermodynamic characteristics of which have been specially adapted. The speed and temperature conditions of the extrusion means are adjusted so that, at an application nozzle forming the outlet die of the extrusion means, the self-sealing composition is crosslinked. The application nozzle is brought close to the internal surface of the casing previously set in relative motion with respect to the application nozzle, and an extruded and crosslinked bead that has a given width and profile is deposited directly on the internal surface of the casing.

A method for reducing the stickiness on the surface exposed to the air of a sealant layer applied on an inner cavity of a tyre. The method establishes that the surface exposed to the air of the sealant layer is subject to a UV radiation.

A method for forming a sealant layer in a tire is described, wherein the tire produced is balanced. The method comprising the steps of: providing a tire; and spraying a sealant layer on the inside of the tire, under the crown, wherein the sealant layer is sprayed at a zero degree angle with respect to the tire mid-circumferential plane as the tire is rotated.

An assembly of a pneumatic tire and of a wheel, the pneumatic tire (10) being fitted to the wheel. The assembly comprises first and second self-sealing products housed in the internal volume (V) of the pneumatic tire (10). The first self-sealing product, referred to as solid self-sealing product (OS), covers a predetermined part of the internal surface of the pneumatic tire (10). The relative position of this predetermined part in the pneumatic tire (10) does not substantially vary under the effect of gravity. The second self-sealing product, referred to as liquid self-sealing product (OL), is in the liquid form.

Provided is a flat tire repair liquid container including: a container main body including a container body in which a flat tire repair liquid is stored, and an opening; and a cap including a flow path configured to guide the flat tire repair liquid out of the container. The flow path includes a cylinder portion of which an end of a first side is open toward internal space of the container body and in which a closing plug is slidably inserted, and a dispensing portion branching from the cylinder portion and open to outside the container. The closing plug is configured to close the flow path by being positioned at the end of the first side of the cylinder portion, and to open the flow path by being subjected to pressure inside the container during flat tire repair work and moving to a second side.

A motor vehicle with a compressor assembly for the supply of a pressure medium to a tire cavity of a tire of a motor vehicle. The compressor assembly has a compression chamber which is rotationally fixed in relation to the motor vehicle wheel, and the compression chamber and the tire cavity are connected via a fluidic connection for the conveying of a pressure medium from the compression chamber into the tire cavity. A tire sealing device has a sealant reservoir with a first connection fluidically connected to a tire cavity of a tire of the motor vehicle to be repaired, and a second connection fluidically connected to a pressure medium source secured to the motor vehicle. The sealant is conveyed out of the pressure medium source into the tire cavity of the tire to be repaired by means of the pressure medium.

A pneumatic tire that is vulcanized using a bladder provided with a coating layer formed by a release agent, a noise absorber 6 being fixed on an inner surface of a tread portion 1 along a tire circumferential direction via an adhesive layer 7, and a thickness of the release agent detected by an electron microscope is 0.1 m to 100 m at least in a fixation region for the noise absorber 6.