Abstract: A method for producing a pneumatic tire in which a noise damper in the form of at least one continuous ribbon for reducing cavity resonance in a tire cavity is provided on the internal surface of a tire on the inside in the radial direction of the tire corresponding to the tire tread, including, providing a vulcanized and shaped tire; mixing a composition for forming the noise damper with a foaming agent to produce a liquid composition; rotating the tire in an upright state by means of a tire holding and rotation device, and introducing the liquid composition onto the tire internal surface by a device for introducing the liquid composition; varying the relative positional relationship of the pneumatic tire and the introduction implement in the axial direction of the tire while introducing the liquid composition is introduced onto the tire internal surface, and forming the liquid composition into a gel; and foaming and drying the gelled liquid composition.

Abstract: Process for manufacturing a self-sealing elastomer composition, wherein the process comprises the following steps: firstly a masterbatch comprising at least one diene elastomer and a thermoplastic plasticizing hydrocarbon resin with a content greater than 30 phr is manufactured by compounding these various components in a mixer at a temperature or up to a temperature called the “hot compounding temperature” which is above the softening point of the hydrocarbon resin; and then at least one crosslinking system is incorporated into the masterbatch thus prepared, by compounding everything, in the same mixer or in a different mixer, at a temperature or up to a maximum temperature which is kept below 100° C., in order to obtain said self-sealing composition, and wherein at least one liquid plasticizer having a glass transition temperature (Tg) below ?20° C. is furthermore incorporated in an amount of less than 60 phr into said masterbatch or into said composition.