Abstract: The invention relates to a sulfur-crosslinkable rubber mixture, to a vulcanizate and to a vehicle tire. The sulfur-crosslinkable rubber mixture contains at least the following constituents: 50 to 100 phr of at least one polyisoprene selected from the group consisting of natural and synthetic polyisoprene and 5 to 500 phr of at least one silica and at least one silane B having the general empirical formula I) (R1)oSi—R2—Sn—R2—Si(R1)o where the R2 radicals may independently be the same or different and are unbranched alkylene groups having 6 to 20 carbon atoms, preferably 6 to 10 carbon atoms, and where n is an integer from 2 to 10.

Abstract: A heating press (1) for vulcanizing a vehicle tire under a vacuum, comprising a heating press upper part (3) and a heating press lower part (6), wherein a container (2) having the mold parts (14, 16, 17, 18, 21) of a segmented vulcanizing mold and a cylindrical hood upper part (4) enclosing said container are arranged on the heating press upper part (3), wherein the hood upper part (4) is arranged fixedly on the heating press upper part (3), wherein the diameter of the hood upper part (4) is dimensioned such that said hood upper part can be pushed over the heating press lower part (6) with a small clearance and said hood upper part has a length (23) which is sufficient to form a closed hood interior space (12) with the heating press lower part (6) and heating press upper part (4).

Abstract: A heating press (1) for vulcanizing a vehicle tire under a vacuum, comprising a heating press upper part (3) and a heating press lower part (6), wherein a container (2) having the mold parts (14, 16, 17, 18, 21) of a segmented vulcanizing mold and a cylindrical hood upper part (4) enclosing said container are arranged on the heating press upper part (3), wherein the hood upper part (4) and the heating press upper part (3) can be moved independently of one another and relative to one another in the axial direction (P1), wherein the cylindrical hood upper part (4) has a length (23) which is sufficient to form a closed hood interior space (12) with the heating press lower part (6) and heating press upper part (4) when the heating press upper part (3) is open, wherein at least one respective vacuum-tight seal (5) is.

Abstract: A method for producing a rubber-plastic composite, including the steps of (a) shaping an unvulcanized elastomer, (b) partially vulcanizing the shaped elastomer at a temperature of at least 140° C. up to a degree of vulcanization in the range from 10% to 40%, (c) cooling the partially vulcanized elastomer to a temperature of less than 100° C. within less than 20 minutes, (d) overmolding the partially vulcanized elastomer with a plastic, and (e) heat treating the partially vulcanized elastomer overmolded with a plastic at a temperature in the range from 100° C. to 170° C. for a duration of from 5 minutes to 5 hours to complete the vulcanization and form a rubber-plastic composite. The method further relates to a rubber-plastic composite obtainable by the method according to the invention and also to a shoe comprising the rubber-plastic composite obtainable by the method according to the invention.

Abstract: A heating press (1) for vulcanizing a vehicle tire under a vacuum, having a heating press upper part (3) and a heating press lower part (6), wherein a circular-ring-shaped hood upper part (4) with a container (2) having the mold parts (14, 16, 17, 18, 21) of a vulcanizing mold is arranged on the heating press upper part (3), and wherein the heating press upper part (3) can be moved in an axial direction (P1) in such a way that the hood upper part (3) can be moved onto the heating press lower part (6) to form a closed hood interior space (12), wherein a press plate (23) is arranged above the container (2) in the hood upper part (4) such that this press plate (23) and thus the container (2) can be moved in the axial direction (P1).

Abstract: A pneumatic vehicle tire having a tread (2) which has a profiling and which has at least one circumferential groove (1) which runs in encircling fashion in the circumferential direction of the pneumatic vehicle tire and is formed to a profile depth PT and which has, in alternating fashion over the entire tire circumference over partial sections (21, 24) of the circumference of the pneumatic vehicle tire, a first cross section perpendicular to the circumferential direction and a second cross section perpendicular to the circumferential direction.

Abstract: The invention relates to a rubber blend, to a sulfur-crosslinkable rubber mixture comprising the rubber blend and to a vehicle tire comprising such a rubber mixture. The rubber blend comprises at least one solution-polymerized diene polymer A of high molecular weight and at least one solution-polymerized polymer B of low molecular weight, wherein at least one of polymers A and B has been functionalized at the chain end and/or along the polymer chain and/or at a coupling site with at least one group selected from epoxy groups, hydroxyl groups, carboxyl groups, silane sulfide groups, amino groups, siloxane groups, organosilicon groups, phthalocyanine groups and amino group-containing alkoxysilyl groups.

Abstract: A pneumatic vehicle tire having a tread with at least one profile block row delimited at each side by a respective circumferential channel which is divided into profile blocks by transverse channels which open into both circumferential channels and run parallel to one another in plan view. Each transverse channel, in plan view, is made up of two channel portions which adjoin one another at an obtuse angle of 100° to 160°. In each profile block there is a blind channel which opens into both channel portions of a transverse channel and which is elongate in plan view and, with the transverse channel, forms a channel combination running in a Y shape in plan view, which blind channel has a width, determined at the tread periphery, of 1.0 mm to 6.0 mm and runs at an angle of 0° to 60° with respect to the circumferential direction.

Abstract: The invention relates to an elastomer product having at least one strength member ply embedded into a vulcanizable rubber compound, where the strength member ply is formed from a multitude of steel cords that each consist of at least two helically twisted filaments or at least two strands formed from two or more mutually helically twisted filaments, and the cords have an elongation at break of at least 5% and an elongation under a tensile stress of 100 N of at least 3.5%, and the vulcanizable rubber compound, as well as natural rubber and/or synthetic rubber, contains sulfur and/or sulfur donors and accelerators, and the elongation of the cords after complete vulcanization of the rubber compound under a tensile stress of 100 N is reduced by at least 10% compared to the state prior to the vulcanization.

Abstract: A sulfur-crosslinkable rubber mixture, a vulcanizate thereof, and a vehicle tire. The sulfur-crosslinkable rubber mixture contains at least the following constituents: a) 1 to 30 phf of at least one silane A selected from the silanes having the general empirical formulae A-I) and A-XI): A-I) (R1)oSi—R20—(S—R30)m—Sx—(R30—S)m—R20—Si(R1)o; A-XI) (R1)oSi—R2—(S—R3)q—S—X; and b) 0.5 to 30 phf of at least one silane B selected from the silanes having the general empirical formulae B-I), B-01) and B-02): B-I) (R1)oSi—R4—(S—R5)u—S—R4—Si(R1)o; B-01) (R1)oSi—R10—Si(R1)o; B-02) (R1)oSi—R9; and c) 12 to 300 phr of silicon dioxide having a CTAB surface area to ASTM D 3765 of 190 to 300 m2/g; and d) at least one diene rubber, where x is an integer from 2 to 10; and q is 1 or 2 or 3; and u is 1 or 2 or 3; and X is a hydrogen atom or a —C(?O)—R8 group where R8 is selected from hydrogen, C1-C20-alkyl groups, C6-C20-aryl groups, C2-C20-alkenyl groups and C7-C20-aralkyl groups.

Abstract: The invention relates to a resin-free sealant for temporary sealing of pneumatic vehicle tires, wherein the sealant comprises at least one rubber latex, at least one stabilizer and water. The invention further relates to a sealant vessel comprising a resin-free sealant and to a method of temporary sealing of a pneumatic vehicle tire.

Abstract: The invention relates to a pneumatic vehicle tire, comprising: a) a tire carcass with a first bead area, a first sidewall area, a central area, a second sidewall area and a second bead area, b) a tread, lying on the outside in the radial direction relative to the tire carcass and arranged over the central area, c) a first flipper strip, arranged at the first bead area, and a second flipper strip, arranged at the second bead area, d) a first upper reinforcing element, arranged at the central area and at the first sidewall area, and a second upper reinforcing element, arranged at the central area and at the second sidewall area, and e) a first lower reinforcing element, arranged at the first bead area, and a second lower reinforcing element, arranged at the second bead area, the first upper reinforcing element (30) and the second upper reinforcing element being located at a distance from the first lower reinforcing element and the second lower reinforcing element.

Abstract: A pneumatic vehicle tire having a carcass with textile carcass strength elements, a belt arranged radially outside the carcass, and a belt bandage ply of a belt bandage arranged radially outside the belt, wherein the belt bandage ply has textile cords as strength elements, which are arranged substantially parallel to one another and are embedded in elastomeric material, wherein the cords each have precisely two yarns, wherein the two yarns are yarns of polyamide 6.6 (PA 6.6), which have the same linear density and are end-twisted together to form the cord.

Abstract: A two-wheeler tire, preferably a bicycle tire, and to a process for producing a two-wheeler tire, preferably a bicycle tire. The two-wheeler tire includes in at least one component a rubber mixture containing at least the following constituents: at least one rubber, preferably at least one diene rubber; and at least one substance from renewable raw materials which is distinct from rubber.

Abstract: A vehicle tire having a sidewall with at least one sidewall decoration that extends at least over a circumferential portion of the sidewall and is made up of structured surface elements, smooth surface elements and base hatching that adjoins these surface elements and is made up of hatching ribs that extend without branching and intersecting, wherein the structured surface elements reproduce a copy or a shadow at least of partial regions of smooth surface elements, and the structured surface elements absorb light to a greater extent than the base hatching. The structured surface elements are each provided with an area-covering contrast structure with branched rib portions, wherein each branched rib portion has intersection points from which the rib portion respectively extends in at least three directions.

Abstract: A pneumatic vehicle tire, in particular utility vehicle tire, having a tread which has a directional profiling with shoulder-side and middle profile ribs running in a circumferential direction, wherein at least one of the middle profile ribs (1), which is in particular a profile rib running along the tire equator, is traversed in an axial direction by sipes (4) with a width (b1) of 0.5 mm to 1.2 mm, each of which has a central portion (4a), in which the sipe (4) runs with an undulation in the direction of extent thereof, and two lateral portions (4b). The sipes (4) extend, in plan view, in an arc shape and symmetrically with respect to the centerline of the profile rib (1), and, in the lateral portions (4b) and in the central portion (4a), have a uniform undulation running in the radial direction, on which the undulation present in the extent direction of the sipes (4) is superposed only in the central portion (4a) of the sipe (4).

Abstract: A process for producing a vulcanizable composite material, including the steps of: a) producing or providing a textile strength member, b) treating the textile strength member with an aqueous dispersion for adhesive activation of the textile strength member and to obtain an adhesion-activated textile strength member and c) introducing the adhesion-activated textile strength member into a crosslinkable rubberization mixture to obtain the vulcanizable composite material, wherein the aqueous dispersion is essentially free of free resorcinol and resorcinol precondensates, especially resorcinol-formaldehyde precondensates, and is free of free formaldehyde and formaldehyde-releasing substances, wherein the crosslinkable rubberization mixture is processible by vulcanization to give a crosslinked rubberization mixture which is at least partly transmissive to visible light at least in sections.

Abstract: The invention relates to a process for producing a vulcanizable composite material, comprising the steps of: a) producing or providing a textile strength member, b) treating the textile strength member with an aqueous dispersion for adhesive activation of the textile strength member and to obtain an adhesion-activated textile strength member and c) introducing the adhesion-activated textile strength member into a crosslinkable rubberization mixture to obtain the vulcanizable composite material, wherein the aqueous dispersion is essentially free of free resorcinol and resorcinol precondensates, especially resorcinol-formaldehyde precondensates, and is free of free formaldehyde and formaldehyde-releasing substances, wherein the crosslinkable rubberization mixture is processible by vulcanization to give a crosslinked rubberization mixture which is at least partly transmissive to visible light at least in sections.