Processes for producing a sealant layer-tire inner liner combination as well as a sealant layer-containing tire and related processes involving the sealant layer-containing tire are disclosed. The sealant layer is adhered to the tire inner liner, has a thickness of 2-8 mm and comprises 100 parts of at least one rubber, 90-500 phr of at least one tackifier, optionally one or more extenders, optionally at least one hydroscopic substance, and a cure package.

Tires having a magnetic tire sealing material containing magnetic particles are described for detecting the presence of one or more sealed punctures in the tire. The tires can have a sealed tire portion that is formed by the magnetic tire sealing material flowing into and filling a puncture in the tire. The sealed tire portion includes a portion having magnetic particles and the portion being at the outer surface of the tire such as in the tread area. The tire can be positioned within the detection zone of an apparatus capable of detecting magnetic particles to indicate whether the tire contains a sealed puncture filled with the magnetic tire sealing material.

The present disclosure relates to a process and a system for manufacturing an HSST tyre, as well as the HSST tyre manufactured by the same. The process for manufacturing an HSST tyre includes a cleaning step, a spraying step, and a forced-cooling step. The cleaning step includes an air-drying procedure for evaporating the isopropanol solution on the tyre to be treated with air-drying gases. The forced-cooling step is configured to forcibly cool the tyre to be treated that has been sprayed with the high molecular organic material. By means of accurate design for each step and procedure, the relying on operator's experience is eliminated and thus the performance stability of the HSST tyre is guaranteed. By means of the air-cooling procedure and the forced-cooling step, the time taken to manufacture an HSST tyre is substantially shortened, making it possible to produce the HSST tyre in a large scale.

The invention relates to a method and a system for the processing of an end-of-use pneumatic tyre that is provided with an inner lining (SAL) layer manufactured with a sealing agent intended to seal any punctures and at least partially applied to the surface of an inner cavity (2) of the end-of-use pneumatic tyre; the system (1) comprises an applicator device (6), which is provided with at least one nozzle (13) which dispenses a cryogenic fluid, preferably liquid nitrogen, upon the (SAL) layer of sealing agent in such a way that the (SAL) layer of sealing agent reaches the solid state; a device (14) for the removal of the (SAL) layer of solid sealing agent that is provided with a tool (16) for removing the (SAL) layer of solid sealing agent by means of mechanical abrasion; and a circuit (17) for suctioning the solid sealing agent removed by the tool (16).

Tire sealant, pneumatic vehicle tire comprising the sealant and process for detecting a pneumatic vehicle tire with a sealant layer and for recycling a pneumatic vehicle tire with a sealant

The invention relates to an automatically sealing tire sealant and a pneumatic vehicle tire having the sealant and a method for detecting a pneumatic vehicle tire with sealant and a method for recycling a pneumatic vehicle tire with sealant. The sealant according to the invention comprises at least one luminescent agent.

The pneumatic vehicle tire according to the invention has the sealant according to the invention at least on the inner surface opposite the tread.

The tire according to the invention is identified or detected by means of the luminescent agent.

The present disclosure relates to self-sealing tires, a process for making said self-sealing tires and the use of a silicone composition cured via a condensation cure chemistry to form a self-sealing layer designed to function as both (i) a self-sealing tire puncture material, i.e., to seal puncture holes in the tread region of tires if/when punctured by a foreign body and (ii) as an adhesive for sound-absorbing foams adapted to reduce the noise generated by tires during travel.

The pneumatic tires of this invention are of the tubeless type, are capable of self-sealing punctures made therein, and generate a low level of noise during use on a vehicle. These tires have a sealant/noise reduction layer which is disposed inwardly from the supporting carcass and which is typically the innermost layer of the tire. The sealant/noise reduction layer is comprised of a dispersed phase and a continuous phase, wherein the dispersed phase is comprised of a sealant material, and wherein the continuous phase is comprised of a foamed polymeric material.

The invention presents a device and a method for placing and attaching a strip inside a tire. Specifically, the tire is positioned on a mounting in relation to a centering means, and an adhesive device is placed inside the tire. While the tire is rotated, the strip is moved inside the tire, wherein a pressure force is applied to said strip. The strip is driven at a linear speed greater than the rotation speed of the tire, thus producing an effect of compressing said strip, the length of which becomes less than the nominal length thereof, thus creating a space between both ends of the strip such that, after release, the strip scrapes the adhesive device, which is repositioned on said ends, thus simultaneously causing said ends to be attached end to end.

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.

A sealing device comprising a flexible holding strip having an adhesive layer on a first surface, wherein the strip is configured for attachment to an inner surface of a tubeless tire via the adhesive layer, and a plurality of flexible flags attached to a second surface of the flexible holding strip opposite the first surface, wherein the plurality of flags is attached to the second surface at a fixed widthwise edge of each of the plurality of flags and wherein the plurality of flags are configured to seal a hole in the tubeless tire when the strip is attached to the inner surface of the tubeless tire is provided. Methods of protecting tires by attaching a sealing device are also described.