Abstract:
A tire (1) comprising over at least part of its surface at least one applique (8). The applique (8) includes a first layer (9) in contact with the air and constituting the upper layer of the applique, and a second layer (10) in contact with the tire (1) and constituting the lower layer of the applique (8), said lower layer (10) of the applique including a bielastic fabric. The fabric used is preferably a bielastic knitted fabric, that is to say a mesh fabric of which the loops which form the mesh are capable of moving relative to one another in the knit direction and perpendicular to the knit direction.
Abstract:
A tire has a toroidal-shaped carcass and an airtight layer which contains at least one ductile metal layer. In one embodiment the airtight layer is a deformable metal layer having a thickness less than or equal to 5 &mgr;m applied on the interior surface of the tire carcass by a support carrier on which the metal layer has been deposited. The support carrier may be retained as part of the tire or removed after applying the metal layer on the interior surface of the tire carcass.
Abstract:
A decorative laminate for articles of elastomeric material in which a layer of pigments is sandwiched between an adhesive covering and a protective vering. The two coverings are produced from aqueous emulsions of at least one homopolymer or a copolymer having a base of at least one monomer selected from the group consisting of acrylic, methacrylic and vinyl esters, and having a glass transition temperature less than 0.degree. C.
Abstract:
A process for cross-linking/expanding at least one cross-linkable, expandable blank, which is intended to form all or part of an elastomeric safety support for a tire in which: the cross-linking consists of curing the expandable or expanded blank in a bath of fluid at excess pressure which is contained in an enclosure, such that the blank interacts with the bath independently of the enclosure, the temperature of the bath having a maximum value of between 110° C. and 210° C. and the absolute pressure of said bath having at least a value equal to or greater than 14 bar, and the expansion consists of curing the cross-linkable or cross-linked blank in the bath, the temperature of the bath having a maximum value of between 110° C. and 210° C., and the absolute pressure of the bath having at least a value equal to or greater than 5 bar and a final pressure-relief value substantially equal to 1 bar, for expanding the blank such that its increase in volume is unlimited with respect to the enclosure.
Abstract:
The present invention relates to a method for anti-ozone protection of at least a part of the outer surface of a vulcanized tire, where the composition of the tire is based on essentially unsaturated dienic elastomers. The present method comprises: (1) subjecting the surface of the vulcanized tire to a treatment in order to polarize and functionalize the elastomers of the surface; (2) applying at least one layer comprising an aqueous polyurethane dispersion to this treated surface; and (3) allowing this layer to dry until a protective coating is formed. The present invention further relates to a tire comprising an anti-ozone protective coating, where the protective coating is formed according to the method described above.
Abstract:
A zinc electrode comprising at least one active portion is improved due to the fact that the active portion has an open porosity of at least 60% and comprises electron-conductive fibers and due to the fact that the active material or materials are distributed practically uniformly throughout the active portion.
Abstract:
A system (1′) formed of a wheel comprising a rim (3′) equipped with an inflation valve (4′), a tire (2′) mounted on said rim of said wheel, and an airtight cellular foam insert (5′) placed inside the volume defined by the internal wall of the tire (2′) and the rim of the wheel (3′). The foam insert (5′) is disposed in a first compartment (A), in communication with the atmosphere via a duct (44′, 46′), and isolated from the rest of the space inside the tire casing by a device (302′) ensuring the airtight seal between the wall of said first compartment (A) and an element of the internal wall of the rim or the casing, in such a way as to form a second airtight compartment (B) communicating with the inflation valve (4′) and inflated to tire utilisation pressure. The duct for providing communication with the atmosphere (44′, 46′) is equipped with a closing device (45′) which adopts the closed position during travel and is capable of being brought into the open position between two travel phases.
Abstract:
The tread wear on a tire is measured while the tire is mounted on a wheel. Electromagnetic energy is transmitted to an internal space of the tire via a transmission element disposed in a tire tread element. That transmitted energy is detected inside the tire, and an energy variable from the detected electromagnetic radiation is determined which is used to determine a wear variable representative of wear on the tire tread element. A signal transmitter disposed within the internal space sends signals representative of the wear.
Abstract:
A tire is provided, on a surface thereof, an applicaiton having a top layer exposed to the air and a bottom layer in contact with the tire. The top layer can be a rigid element and/or a marking covering, or a device for measuring or monitoring the tire. The bottom layer is a foam having a void ratio of at least 40%, a thickness of at least 0.5 mm, and a density ranging from 0.02 g/cm3 to 0.5 g/cm3.
Abstract translation:在其表面上设置有具有暴露于空气的顶层和与轮胎接触的底层的应用的轮胎。 顶层可以是刚性元件和/或标记覆盖物,或用于测量或监测轮胎的装置。 底层是具有至少40%的孔隙率,至少0.5mm的厚度和0.02g / cm 3至0.5g / cm 3的密度的泡沫体 SUP>。
Abstract:
A process for cross-linking/expanding at least one cross-linkable, expandable blank, which is intended to form all or part of an elastomeric safety support for a tire in which: the cross-linking consists of curing the expandable or expanded blank in a bath of fluid at excess pressure which is contained in an enclosure, such that the blank interacts with the bath independently of the enclosure, the temperature of the bath having a maximum value of between 110° C. and 210° C. and the absolute pressure of said bath having at least a value equal to or greater than 14 bar, and the expansion consists of curing the cross-linkable or cross-linked blank in the bath, the temperature of the bath having a maximum value of between 110° C. and 210° C., and the absolute pressure of the bath having at least a value equal to or greater than 5 bar and a final pressure-relief value substantially equal to 1 bar, for expanding the blank such that its increase in volume is unlimited with respect to the enclosure.