Patent FR-2874616-A1 (FR)
Title: Anti-puncture homogenous chemical product and its variations forming additional reinforcement layer on tyre tread and flanks, used in e.g. heavy vehicles, comprises fluid composition containing rubber restoring and armor plating agents
Inventor: RAMON RUIZ MARIA AMELIA
IPC: B29C73/20
Filed: 2004-08-31
Abstract: Anti-puncture homogenous chemical product (P) and its variations forming an additional reinforcement (1) layer on the tyre tread (I) and on the most sensitive parts of the flanks (II), comprises a fluid composition of a homogenous mixture containing rubber restoring agents and high performance armor plating agents of S2 glass fiber, polyester resin fiber and carbon resin fiber, on a base of demineralized water and monoethylene glycol. Anti-puncture homogenous chemical product (P) of high viscosity and its variations forming an additional reinforcement (1) layer on the tyre tread (I) and on the most sensitive parts of the flanks (II) of the tyre, comprises a fluid composition of a homogenous mixture containing rubber restoring agents and high performance armor plating agents of S2 glass fiber, polyester resin fiber and carbon resin fiber, on a base of demineralized water and monoethylene glycol. INDEPENDNET CLAIMS are also included for: (1) the manufacture of (P) comprising using a stainless mixing tank equipped with an agitator and a heating device, pouring demineralized water into the tank at 50-75[deg]C, pouring the silicate powder of aluminum/magnesium (Al/Mg) and agitating for 45 min at a speed of revolutions of 200 TPM, adding pseudoplastic organic viscosing agent, agitating for 30 minutes at a speed of revolution of 100 TPM; adding monoethyleneglycol, antioxidant agent and the catalyst, reducing the temperature to 30[deg]C, agitating the mixture for 30 minutes at the speed of 75 TPM, pouring the percentage of bonding agent, agitating for 30 minutes at the speed of 75 TPM until a perfectly homogenous mixture is obtained, adding the homogenizing reactive 10 minutes before the end of rotation, pouring the rubber restoring agent, rotating at ambient temperature for 45 minutes at 50 TPM, pouring the armor plating agents at a speed of 30 TPM for 30 minutes for short fibers, and pouring the armor plating agents at a speed of 10 TPM for 20 minutes for long fibers; (2) process of installation of (I) by the valve, comprising installing fluid containing fine powder by the valve after disassembling the valve core, on unassembled or assembled tyre, after removing the residual air; injecting the fluid with the help of a syringe, manual pump or hydraulic pump according to the recommended quantity; supplying the fluid into the tyre once the valve core is mounted; and reinflating the tyre to the indicated pressure, after a prior wheeling of 5-10 km; (3) process of installation of (I) by the flank, comprising installation for the fluid containing thick particles, carried out by the flank of the tyre, where the dimension of the various components of the formula is not introduced by the valve; horizontal installation of the fluid carried out after total disinflation of the tyre by forming a lever between the tyre and the rim (where conventional assembling of the rim to the tyre and inflation are at normal pressure); vertical installation carried out directly on the tyre separated from the rim by introducing the fluid manually or by large flow hydraulic pump, with prior wheeling of the vehicle for 5-10 km, for internal plying; and installation of the fluid containing fine powder as additive; (4) proportioning (I) comprising calculating the proportion according to the formula (width of tyre treadxtotal diameter of tyrex0.0232x0.2845 to obtain the protection of the tread tyre; improving the quantity; carrying out a software for programming of proportion with visual basic, which was used to calculate the volume according to 3 protections such as tread, tread and flank bead, and flank; and (5) solid product applying as fixation reinforcement within the interiors of the tyre: tread and/or flank used in aviation and competition tyres, comprising the fiber S2 utilized in its solid variation to form a fixation in the internal tread of the tyre (where the solid product: is used as a product fixed prior to assembling of the tyre; is adapted to high speed tyres undergoing constraints of increased temperature; and is compatible with the fluid product and forms binomial with it).