Patent classifications
B29D30/38
Method for producing a vehicle tire, vehicle tire produced according to the method, and use of treated reinforcing supports
A method for producing a vehicle tire, having the following steps: a) providing textile reinforcing supports; b) providing a bath which is free of resorcin and formaldehyde by at least: b1) adding at least one carboxylic acid to water; b2) adding at least one base; b3) adding at least one epoxy compound; b4) adding at least one polyisocyanate compound; b5) adding at least one VP latex; and b6) mixing the substances from b1) to b5); c) dipping the reinforcing supports from step a) into the bath from step b); d) subsequently hot-stretching the dipped reinforcing supports from step c); and e) further processing the reinforcing supports from step d) in order to form a reinforcing support layer in a vehicle tire blank. A vehicle tire which is produced using the method and to the use of reinforcing supports treated in such a manner in technical rubber articles are also disclosed.
Method for producing a vehicle tire, vehicle tire produced according to the method, and use of treated reinforcing supports
A method for producing a vehicle tire, having the following steps: a) providing textile reinforcing supports; b) providing a bath which is free of resorcin and formaldehyde by at least: b1) adding at least one carboxylic acid to water; b2) adding at least one base; b3) adding at least one epoxy compound; b4) adding at least one polyisocyanate compound; b5) adding at least one VP latex; and b6) mixing the substances from b1) to b5); c) dipping the reinforcing supports from step a) into the bath from step b); d) subsequently hot-stretching the dipped reinforcing supports from step c); and e) further processing the reinforcing supports from step d) in order to form a reinforcing support layer in a vehicle tire blank. A vehicle tire which is produced using the method and to the use of reinforcing supports treated in such a manner in technical rubber articles are also disclosed.
METHOD FOR PRODUCING A MATERIAL WEB, USE THEREOF AS A REINFORCING PLY FOR AN ELASTOMER ITEM, AND VEHICLE PNEUMATIC TIRES
The invention is directed to a vehicle pneumatic tire wherein strengthening plies are provided with steel cords running parallel to one another. The belt plies can be used, as isolated electrically conductive plates, for supplying electricity to electrical consumers such as sensors and actuators installed in the tire. Adjacent belt plies can be connected by puncture sensors to be able to identify damage to the belt caused by metallic parts penetrating from the outside, such as nails, on the basis of a change in the electrical resistance.
METHOD FOR PRODUCING A MATERIAL WEB, USE THEREOF AS A REINFORCING PLY FOR AN ELASTOMER ITEM, AND VEHICLE PNEUMATIC TIRES
The invention is directed to a vehicle pneumatic tire wherein strengthening plies are provided with steel cords running parallel to one another. The belt plies can be used, as isolated electrically conductive plates, for supplying electricity to electrical consumers such as sensors and actuators installed in the tire. Adjacent belt plies can be connected by puncture sensors to be able to identify damage to the belt caused by metallic parts penetrating from the outside, such as nails, on the basis of a change in the electrical resistance.
Manufacturing method and manufacturing device of tire belt
A manufacturing method includes: cutting out a sheet-like belt 8b by cutting a master roll 8a between a master roll table 10 and a belt table 14; moving the belt table 14 carrying the cut-out sheet-like belt 8b to a winding position of the sheet-like belt 8b; and winding the sheet-like belt 8b around a winding cylinder 50 at the winding position. The master roll 8a is fixed onto the belt table 14 by attraction when the master roll 8a is cut between the master roll table 10 and the belt table 14 and the belt table 14 is moved to the winding position of the sheet-like belt 8b while keeping the cut-out sheet-like belt 8b fixed onto the belt table 14 by attraction.
Manufacturing method and manufacturing device of tire belt
A manufacturing method includes: cutting out a sheet-like belt 8b by cutting a master roll 8a between a master roll table 10 and a belt table 14; moving the belt table 14 carrying the cut-out sheet-like belt 8b to a winding position of the sheet-like belt 8b; and winding the sheet-like belt 8b around a winding cylinder 50 at the winding position. The master roll 8a is fixed onto the belt table 14 by attraction when the master roll 8a is cut between the master roll table 10 and the belt table 14 and the belt table 14 is moved to the winding position of the sheet-like belt 8b while keeping the cut-out sheet-like belt 8b fixed onto the belt table 14 by attraction.
HEAT TREATMENT OF A REINFORCEMENT ELEMENT
A method for manufacturing a reinforced ply comprising an elastomer composition and at least one metallic reinforcing element includes subjecting the reinforcer to a specific heat treatment.
HEAT TREATMENT OF A REINFORCEMENT ELEMENT
A method for manufacturing a reinforced ply comprising an elastomer composition and at least one metallic reinforcing element includes subjecting the reinforcer to a specific heat treatment.
SULFUR-CROSSLINKABLE RUBBER-COATING MIXTURE
The invention relates to a sulfur-crosslinkable rubberization mixture for metallic or textile strength members containing at least one novolac resin comprising alkyl urethane units and produced by reaction of a phenolic compound, an aldehyde and a carbamate resin, wherein the carbamate resin is produced by reaction of alkyl urethane with an aldehyde, and at least one etherified melamine resin. The invention further relates to a pneumatic vehicle tire which comprises at least one such sulfur-crosslinked rubberization mixture.
For improved durability of the rubberized strength members, the rubberization mixture contains less than 2.5 phr (parts by weight, based on 100 parts by weight of the total rubbers in the mixture) of at least one novolac resin comprising alkyl urethane units and produced by reaction of a phenolic compound, an aldehyde and a carbamate resin, wherein the carbamate resin is produced by reaction of alkyl urethane with an aldehyde, and less than 2.5 phr of at least one etherified melamine resin.
WIRE COAT RUBBER COMPOSITION FOR A TIRE AND A TIRE COMPRISING A WIRE COAT RUBBER COMPOSITION
In accordance with the invention a wire coat rubber composition for a tire comprises from 70 phr to 100 phr of cis 1,4-polyisoprene rubber, from 0 phr to 30 phr of solution styrene butadiene rubber, from 65 phr to 95 phr pre-silanized precipitated silica, from 0.1 phr to 5 phr of a cobalt salt, up to 15 phr carbon black, up to 10 phr of a resin, and up to 10 phr oil. Further the present invention is directed to a tire comprising such a wire coat composition.