Vulcanisable rubber mixture and vulcanised material with improved rolling and abrasion characteristics

Abstract

The invention relates to a vulcanisable rubber mixture comprising a) diene rubber, b) filling materials, c) organo-silicon-modified resin, and d) organo-silicon compounds, selected from the group consisting of organo-silicon compounds of formulas I.a) and I.b): I.a) (R1R2R3)Si – Xa – S – (C=O) – Ya, and I.b) (R1R2R3)Si – Xb1 – Sn – Xb2 – Si(R4R5R6), wherein the R groups R1, R2, R3, R4, R5 and R6 are independently linear or branched organic groups with 1 to 20 non-hydrogen atoms, wherein the organic group of at least one of the R groups R1, R2 and R3 as well as one of the R groups R4, R5 and R6 is bonded to the Si atom via an oxygen atom, wherein n is a whole number in the region of 2 and 10, wherein Xa is a linear or branched organic compound unit with 4 to 40 non-hydrogen atoms, wherein the number of non-hydrogen atoms in the compound chain between the Si atom and the S atom is 4 or more, wherein Xb1 and Xb2 are independently linear or branched organic compound units with 4 to 20 non-hydrogen atoms, wherein the number of non-hydrogen atoms in the compound chain between the Si atom and the S atom is respectively 4 or more, and wherein Ya is a linear or branched organic group with 1 to 20 non-hydrogen atoms.

Description

Description Vulcanizable rubber compound and vulcanizate with improved rolling and abrasion properties The invention relates to a vulcanizable rubber mixture, a vulcanizate producible therefrom, and a rubber product containing this vulcanizate. Also disclosed is the use of a corresponding vulcanizable rubber mixture or a corresponding vulcanizate in the production of rubber products to improve their abrasion properties. The automotive industry is one of the sectors that has faced fundamental challenges since the beginning of the 21st century and has simultaneously been shaped by numerous technological innovations. Growing customer awareness of environmental aspects such as emissions profiles and resource efficiency requires new mobility concepts. At the same time, demand for improved vehicle performance and requirements regarding driving safety are increasing. Meeting these challenges is not solely the responsibility of the actual vehicle manufacturers. In practice, many of these aspects are strongly influenced by tire properties, making the optimization of tire properties an important area of ​​innovation. Several relevant properties of pneumatic automotive tires, such as wet grip and abrasion resistance, are closely linked to the rubber composition of the tread. Therefore, many research efforts focus on optimizing the properties of the rubber composition and its additives. Significant progress has been made in this field in recent decades. A key innovation has been the at least partial replacement of carbon black fillers with silicon-containing compounds, in particular silicon dioxide compounds, such as fumed silica, or silicates. It has been shown that particularly favorable properties can be obtained if the silicon-containing compounds are modified on their surface by organosilanization, which is also referred to as organosilylation. For this purpose, the silicon-containing compounds are reacted with organosilicon compounds, in particular organyloxysilylorganic compounds, i.e. with compounds which have at least one CO-Si bond and at least one organic radical attached via a Si-C bond. In the course of the chemical reaction, which is usually a condensation reaction, a modification with the organic radical of the organosilicon compounds occurs at the interface between the silicon-containing compounds.This organic residue can be used to specifically influence the compatibility of the fillers in the rubber compound and their interactions with the rubber. In many cases, it is preferable for the organic residues to carry functional groups that can crosslink with the rubber compound during vulcanization, thus increasing the degree of crosslinking in the vulcanizate. This is why organosilicon compounds are sometimes also referred to as silane coupling agents. This principle is disclosed, for example, in DE 2536674 C3 or DE 2255577 A1. The concept developed for the modification of silicon-containing compounds was subsequently adapted to resins. For example, WO2018 / 191187 A1 proposed resins that were provided with a corresponding filler-reactive group to also enable bonding to the filler. A beneficial effect on the physicochemical properties of the vulcanizable rubber compounds produced with them, or the vulcanizates produced from them by vulcanization, was also observed. Despite the fundamental advantages of the individual use of organosilicon compounds with a rubber-reactive group and resins with a filler-reactive group, it was surprisingly found that the combination of typical silane coupling agents, such as TESPD, which is widely used in the industry, with a resin with a filler-reactive group is also associated with disadvantages in many cases. In particular, it has been found that, although favorable rolling properties and good wet grip can generally be achieved, abrasion properties are sometimes significantly impaired. The primary object of the present invention was to eliminate or at least reduce the above-described disadvantages of the prior art. In particular, it was the object of the present invention to provide a vulcanizable rubber mixture and corresponding vulcanizates that can be produced therefrom, which have excellent mechanical properties and, in particular, best solve the conflict of objectives between good rolling properties, in particular with regard to rolling resistance and wet grip, on the one hand, and advantageous abrasion behavior on the other hand. It was a supplementary object of the present invention that the vulcanizable rubber mixtures and vulcanizates to be specified should be producible, if possible, using production processes that are already used today in the field of rubber processing. It was a further object of the present invention to provide a corresponding rubber product which comprises the vulcanizate to be specified. It was a secondary object of the present invention to provide a use of a corresponding vulcanizable rubber mixture or a corresponding vulcanizate in the production of rubber products to improve the abrasion properties. The inventors of the present invention have now recognized that the objects described above can surprisingly be achieved if specific organosilicon compounds are used in vulcanizable rubber mixtures which comprise organosilicon-modified resins and fillers having free OH groups on the filler surface, in particular silicon-containing fillers, as defined in the claims. The above-mentioned objects are accordingly achieved by the subject matter of the invention as defined in the claims. Preferred embodiments of the invention emerge from the subclaims and the following statements. Such embodiments, which are designated as preferred below, are combined in particularly preferred embodiments with features of other embodiments designated as preferred. Combinations of two or more of the embodiments designated as particularly preferred below are thus very particularly preferred. Likewise preferred are embodiments in which a feature of one embodiment designated as preferred to any extent is combined with one or more further features of other embodiments designated as preferred to any extent. Features of preferred vulcanizates, rubber products, and uses emerge from the features of preferred vulcanizable rubber mixtures. Insofar as below for a mixture component, for example for the diene rubbers or the organosilicon-modified resins, both If specific amounts or proportions of this mixture component as well as preferred embodiments of the mixture component are disclosed, in particular the specific amounts or proportions of the preferably configured mixture components are also disclosed. Furthermore, it is disclosed that, with the corresponding specific total amounts or total proportions of the mixture components, at least some of the mixture components can be preferably configured, and in particular also that preferably configured mixture components can in turn be present in the specific amounts or proportions within the specific total amounts or total proportions. The invention relates to a vulcanizable rubber mixture comprising: a) one or more diene rubbers, b) one or more fillers selected from the group consisting of fillers having free OH groups on the filler surface, c) one or more organosilicon-modified resins, and d) one or more organosilicon compounds selected from the group consisting of organosilicon compounds of the formulae la) and lb): la) (R 1 R 2 R 3 )Si - X a - S - (C=O) - Y a , and lb) (R 1 R 2 R 3 )Si - X b1 - Sn - X b2 - Si(R 4 R 5 R 6 ), where the residues R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group is at least one of the radicals R 1 , R2 and R 3 and one of the residues R 4 , R 5 and R 6 is bonded to the Si atom via an oxygen atom, where n is an integer in the range from 2 to 10, where X a a linear or branched organic compound unit with 4 to 40 non-hydrogen atoms, the number of non-hydrogen atoms in the connecting chain between the Si atom and the S atom being 4 or more, where X b1 and X b2 are independently linear or branched organic compound units having 4 to 20 non-hydrogen atoms, wherein the number of non-hydrogen atoms in the connecting chain between the Si atom and the S atom is 4 or more, and wherein Y a a linear or branched organic group having 1 to 20 non-hydrogen atoms. Vulcanizable rubber mixtures per se and their typical components as well as typical production processes for obtaining corresponding vulcanizable rubber mixtures are comprehensively known to the person skilled in the art in the field of rubber processing. In accordance with standard practice, the above-defined components of the vulcanizable rubber compound are each referred to as "one or more." The term "one or more" refers, as is customary in the industry, to the chemical nature of the respective compounds, not to their quantity. For example, the vulcanizable rubber compound may comprise exclusively SBR as a diene rubber, which would mean that the vulcanizable rubber compound comprises a plurality of the respective molecules. Where mass fractions are stated below, these are in many cases stated as combined mass fractions of one or more components, as is customary in the industry, which indicates that the mass fraction of the correspondingly formed components taken together meets the corresponding criteria. The term phr (parts per hundred parts of rubber by weight) used here is the quantity commonly used in the rubber industry for mixture recipes, which indicates the mass fractions of the components in the rubber mixture based on the mass of the high molecular weight (weight average) present in the rubber mixture. Molar mass Mw according to GPC greater than 60,000 g / mol) rubbers are specified, where the combined mass fraction of the high molecular weight rubbers in the rubber mixture corresponds to 100 phr. The specification phf (parts per hundred parts of filler by weight) is analogous to the quantity commonly used in the rubber industry for mixture recipes, in particular for coupling agents for fillers, based on the mass of the fillers present in the rubber mixture. In the context of the present invention, the specification phf refers only to the fillers present in the vulcanizable rubber mixture, which are selected from the group consisting of fillers with free OH groups on the filler surface, ie in particular silicon-containing fillers, the combined mass fraction of which corresponds to 100 phf, so that other fillers which may be present, such as common carbon black, are not included in the calculation of the phf. The above definitions define organic groups and organic linking units. The term organic is clear to the person skilled in the art and means that these units are or can be part of an organic molecule and, in most cases, means that the non-hydrogen atoms are selected from the group of non-metals. In accordance with the understanding of the person skilled in the art, organic groups (e.g., -CH3) are connected via a hydrogen bond and organic linking units (e.g., -CH2-CH2- or -CH2-CHR x - CH2-, where R x for example, can again be an organic group) is linked to other components of the respective compound via two attachment points. The reference to "non-hydrogen atoms" in organic groups and compound units is convenient for the skilled person and is familiar to him based on his technical knowledge. This can be used to express that organic compound units or groups can not only be pure hydrocarbon units or hydrocarbon groups, but can also regularly contain heteroatoms, in As a result, the organic compound units or groups also contain functional groups such as ester groups or ether groups. The skilled person will readily understand that, in addition to the "non-hydrogen atoms" defined above, hydrogen atoms can of course also be present and will be present in the vast majority of cases. However, due to their monovalent nature, these will not be present in the chain but will instead fill the valences remaining on the "non-hydrogen atoms". The phrase "organic group with three non-hydrogen atoms" means, for example, in accordance with the skilled person's understanding, that the organic group comprises three further non-hydrogen atoms in addition to hydrogen atoms. For essentially all embodiments, in accordance with the understanding of the person skilled in the art, a vulcanizable rubber mixture according to the invention is preferred, wherein the non-hydrogen atoms are selected from the group consisting of C, N, O, S, P, F, Cl and Br, preferably selected from the group consisting of C, N, O and S. It is clear to the person skilled in the art that the definition of organic compound units or groups results in an implicit functional restriction in that these are, of course, groups or compound units whose constitution does not contradict any fundamental chemical principles, so that the above units, for example, do not consist exclusively of halides. The vulcanizable rubber mixture according to the invention comprises at least one diene rubber. Diene rubbers are, in accordance with the expert understanding, rubbers obtained by (co)polymerization of dienes and / or cycloalkenes and thus have C=C double bonds either in the main chain or in the side groups. The advantage of the vulcanizable rubber mixture according to the invention is that it is very flexible with regard to the diene rubbers to be used, so that in principle all rubbers customary in the industry can be used. However, in the opinion of the inventors, a vulcanizable rubber mixture according to the invention is preferred, wherein the one or more diene rubbers are selected from the group consisting of natural polyisoprene, synthetic polyisoprene, epoxidized polyisoprene, butadiene rubber, solution-polymerized styrene-butadiene rubber, emulsion-polymerized styrene-butadiene rubber, polynorbornene, ethylene-propylene-diene rubber, nitrile rubber, acrylate rubber, styrene-isoprene-butadiene terpolymer, butyl rubber and halobutyl rubber, wherein the one or more diene rubbers are preferably selected from the group consisting of natural polyisoprene (NR), synthetic polyisoprene (IR),Butadiene rubber (BR), solution-polymerized styrene-butadiene rubber (SSBR), and emulsion-polymerized styrene-butadiene rubber (ESBR), wherein the one or more diene rubbers are particularly preferably selected from the group consisting of solution-polymerized styrene-butadiene rubber and emulsion-polymerized styrene-butadiene rubber. In this respect, additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein at least one of the diene rubbers, preferably all of the one or more diene rubbers, is an end-group-modified and / or chain-modified diene rubber, preferably an end-group-modified diene rubber. For obtaining vulcanizable rubber mixtures that can be converted into particularly high-performance vulcanizates by vulcanization, SBR, BR, and IR or NR have proven particularly suitable as diene rubbers. Thus, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable The rubber mixture comprises styrene-butadiene rubber, preferably solution-polymerized styrene-butadiene rubber, as the diene rubber, preferably in a combined mass fraction of 30 phr or more, particularly preferably 50 phr or more, very particularly preferably 70 phr or more. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises butadiene rubber as the diene rubber, preferably in a combined mass fraction of 30 phr or more, particularly preferably 50 phr or more, very particularly preferably 70 phr or more.In turn, additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises natural polyisoprene and / or synthetic polyisoprene, preferably natural polyisoprene, as diene rubber, preferably in a combined mass fraction in the range from 1 to 40 phr, particularly preferably in the range from 2 to 35 phr, very particularly preferably in the range from 5 to 30 phr. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein the diene rubber(s) have a weight-average molecular mass Mw, measured by GPC, in the range from 200,000 to 5,000,000 g / mol, preferably in the range from 250,000 to 2,500,000. To optimally adapt the physicochemical and mechanical properties of the vulcanizates produced to the respective application requirements, it has proven advantageous to mix two or more rubbers together. Accordingly, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises two or more, preferably three or more, different diene rubbers as the diene rubber. The vulcanizable rubber mixture according to the invention comprises one or more fillers selected from the group consisting of fillers with free OH groups on the filler surface. The person skilled in the art will understand that these are fillers which, due to the OH functionality on their surface, can enter into a condensation reaction with Si-OR functionalities which, in the context of the present invention, are introduced via the organosilicon-modified resin. In addition to other compounds, for example layered silicates such as kaolin, amorphous silicon dioxide compounds in particular are fillers with free OH groups on the filler surface. The vulcanizable rubber mixture according to the invention accordingly preferably comprises one or more silicon-containing fillers which are particularly preferably selected from the group consisting of amorphous, i.e. non-crystalline, silicon dioxides.Among the amorphous silicon dioxides, the compounds that are historically also referred to as "silica" or, based on the English term, "silica" are of outstanding importance in the rubber industry, especially the tire industry, so that the use of these "silicas" as silicon-containing fillers is preferred in essentially all cases. Accordingly, a vulcanizable rubber mixture according to the invention is very particularly preferred, wherein the one or more silicon-containing fillers are selected from the group consisting of pyrogenic silicon dioxide and precipitated silicon dioxide, particularly preferably precipitated silicon dioxide. In principle, a vulcanizable rubber mixture according to the invention is preferred, wherein the one or more silicon-containing fillers have a nitrogen surface area (BET surface area) according to DIN ISO 9277:2014-01 and DIN 66132:1975-07 in the range from 35 to 350 m 2 / g, preferably in the range of 45 to 300 m 2 / g, particularly preferably in the range of 60 to 280 m 2 / g. Preferably, additionally or alternatively, a vulcanizable rubber mixture according to the invention, wherein the one or more silicon-containing fillers have a CTAB surface according to ASTM D 3765-03 in the range of 35 to 350 m 2 / g, preferably in the range of 45 to 300 m 2 / g, particularly preferably in the range of 60 to 280 m 2 / g. With regard to the usable amounts of filler, the inventors have found that the vulcanizable rubber mixtures according to the invention advantageously exhibit excellent results even for high filler contents. In the inventors' estimation, however, the solution identified within the scope of the present invention exhibits the greatest advantages particularly at medium filler contents. Accordingly, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises the one or more fillers with free OH groups on the filler surface, preferably the one or more silicon-containing fillers, in a combined mass fraction in the range from 5 to 250 phr, preferably in the range from 20 to 180 phr, particularly preferably in the range from 30 to 160 phr, and most particularly preferably in the range from 40 to 130 phr. In addition to the fillers to be used according to the invention with free OH groups on the filler surface, preferably the silicon-containing fillers, further fillers may also be present which do not have free OH groups on the filler surface, thereby enabling a specific adaptation of the properties of the vulcanizable rubber mixture. Preference is given to a vulcanizable rubber mixture according to the invention, wherein the vulcanizable rubber mixture comprises one or more further fillers selected from the group consisting of fillers which do not have free OH groups on the filler surface, wherein the combined mass fraction of the further fillers is preferably in the range from 0.1 to 100 phr, particularly preferably in the range from 0.5 to 50 phr. In addition to the diene rubbers and fillers as well as the resins and organosilicon compounds further characterized below, other typical components can be used in the vulcanizable rubber mixtures according to the invention, which serve, for example, to influence the physico-chemical properties, e.g. the processing and vulcanization properties, of the vulcanizable rubber mixtures or the mechanical properties of the vulcanizates that can be produced therefrom. An example in this regard is a vulcanizable rubber mixture according to the invention, wherein the vulcanizable rubber mixture comprises one or more plasticizers, wherein the plasticizers are preferably selected from the group consisting of mineral oils, synthetic plasticizers, fatty acids, fatty acid derivatives, factices, glycerides, terpenes, biomass-to-liquid oils (BTL oils) and rubber-to-liquid oils (RTL oils), wherein the vulcanizable rubber mixture comprises the plasticizers preferably in a combined mass fraction in the range from 1 to 100 phr, preferably in the range from 10 to 80 phr, particularly preferably in the range from 20 to 60 phr. By way of example, additionally or alternatively, a vulcanizable rubber mixture according to the invention is also provided, wherein the vulcanizable rubber mixture comprises one or more further additives, wherein the further additives are preferably selected from the group consisting of methylene donors, ageing inhibitors, for example N-phenyl-N'-(1,3-dimethylbutyl)-p-phenylenediamine (6PPD), N,N'-diphenyl-p-phenylenediamine (DPPD), N,N'-ditolyl-p-phenylenediamine (DTPD), N-isopropyl-N'-phenyl-p-phenylenediamine (IPPD), 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ), activators, for example zinc oxide and fatty acids, waxes, mastication aids, for example 2,2'-dibenzamidodiphenyl disulfide (DBD) and processing aids, wherein the vulcanizable rubber mixture preferably comprises the further additives in a combined mass fraction in the range from 0.1 to 20 phr, preferably in the range from 0.5 to 15 phr, particularly preferably in the range from 1 to 10 phr. In addition to the organosilicon-modified resins specified further below, conventional resins can also be used. An example in this regard is a vulcanizable rubber mixture according to the invention, wherein the vulcanizable rubber mixture comprises one or more further resins that are not organosilicon-modified resins, preferably plasticizer resins and / or reinforcing resins, preferably in a combined mass fraction in the range of 0.5 to 50 phr, more preferably in the range of 1 to 40 phr, most preferably in the range of 5 to 30 phr. Those skilled in the art of rubber processing are readily able to distinguish resins from diene rubbers and any liquid polymer components, which in practice is done in particular via the average molecular weight or the glass transition temperature.An example is a vulcanizable rubber mixture according to the invention, wherein the one or more further resins have a glass transition temperature, measured by DSC, T. g of -20 °C or more, preferably of -15 °C or more, particularly preferably of -10 °C or more. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is also exemplary, wherein the one or more further resins have a weight-average molar mass Mw, measured by GPC, in the range from 200 to 50,000 g / mol, preferably in the range from 400 to 40,000 g / mol, particularly preferably in the range from 600 to 30,000 g / mol, very particularly preferably in the range from 800 to 20,000 g / mol. With regard to the vulcanization behavior, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture contains 0.5 to 8.0 phr, preferably 0.8 to 6 phr, particularly preferably 1 to 4 phr, of sulfur. Advantageously, particularly when using the organosilicon compounds of formula 1b), the use of sulfur or sulfur donors can also be dispensed with, since these can themselves act as sulfur donors. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein the vulcanizable rubber mixture comprises further vulcanization components, wherein the further vulcanization components are selected from the group consisting of crosslinkers, vulcanization retarders, and vulcanization accelerators, for example, thiazole accelerators, mercapto accelerators, sulfenamide accelerators, thiocarbamate accelerators, thiuram accelerators, thiophosphate accelerators, thiourea accelerators, xanthate accelerators, or guanidine accelerators. In addition to sulfur and sulfur donors, peroxide crosslinkers, for example, can also be used.Suitable peroxidic crosslinkers include, for example, organic peroxides such as dicumyl peroxide, di-(2,4-dichlorobenzoyl) peroxide, tert-butyl peroxybenzoate, 1,1-di-(tert-butylperoxy)-3,3,5-trimethylcyclohexane, butyl~4,4-di-(tert-butylperoxy)valerate, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexyne, di-tert-butyl peroxide, 2,5-dimethyl-2,5-di-(tert-butylperoxy)hexane, di-(2-tert-butylperoxyisopropyl)benzene or tert-butylcumyl peroxide, although these crosslinkers can also be used in any combination with one another. Further alternatives include, for example, those described in WO 2018 / 191187 A1, paragraph .

[0094] , cross-linking agents mentioned above are used. A particularly important component of the vulcanizable rubber mixtures according to the invention are the organosilicon-modified resins. Examples of corresponding organosilicon Modified resins are disclosed, for example, in WO 2018 / 191187 A1. These organosilicon-modified resins comprise the typical oligomeric or (co)polymeric backbone of conventional resins, but also have at least one filler-reactive group. Since the boundaries between oligomeric and polymeric compounds are ultimately blurred and a distinction provides no advantage for the invention, in the context of the present invention, both cases are referred to as a (co)polymeric backbone or a (co)polymer chain, which accordingly also includes chains that could be referred to as (co)oligomer chains. With regard to the fillers used in rubber mixtures according to the invention with free OH groups on the filler surface, the filler-reactive group must be a group that can react with such surface OH groups of the fillers. According to the inventors' assessment, these filler-reactive groups could, in principle, be a variety of functional groups that enable the required reactivity with OH groups, for example, isocyanate groups for the formation of carbamates. The filler-reactive group can, for example, be those with hydroxyl groups and / or ethoxy groups and / or epoxy groups and / or siloxane groups and / or amino groups and / or aminosiloxane and / or carboxy groups and / or phthalocyanine groups and / or silane sulfide groups. However, other modifications known to the expert, also known as functionalizations, may also be considered.Metal atoms can be a component of such functionalizations. However, according to the inventors' assessment, a silicon-based linkage is particularly suitable for the vulcanizable rubber mixtures according to the invention. The person skilled in the art will understand that the relevant reaction here is organosilanization, or organosilylation. and that the specific organosilicon-modified resins of the present invention are organosilicon-modified for this purpose, so that the organosilicon-modified resins are ultimately organyloxysilylorganic compounds and the same functional groups can be used which are known for this purpose from so-called silane coupling agents. In the inventors' estimation, with regard to the mass fraction of these organosilicon-modified resins, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises the one or more organosilicon-modified resins in a combined mass fraction in the range of 0.5 to 60 phr, preferably in the range of 1 to 50 phr, particularly preferably in the range of 5 to 40 phr. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises two or more different organosilicon-modified resins. The inventors have succeeded in identifying particularly suitable organosilicon-modified resins, the use of which can achieve particularly advantageous rolling resistance and favorable wet grip behavior and with which, within the scope of the present invention, advantageous abrasion behavior can also be achieved, so that the conflict of objectives in this regard is resolved in an advantageous manner. Firstly, a vulcanizable rubber mixture according to the invention is preferred, wherein the one or more organosilicon-modified resins have a glass transition temperature, measured by DSC, T gof -20 °C or more, preferably of -15 °C or more, particularly preferably of -10 °C or more. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein the one or more organosilicon-modified resins have a weight-average molecular weight Mw, measured by GPC, in the range from 200 to 60,000 g / mol, preferably in the range from 400 to 50,000 g / mol, particularly preferably in the range from 500 to 40,000 g / mol, most preferably in the range from 600 to 35,000 g / mol. The weight-average molar mass is determined by gel permeation chromatography according to DIN 55672-1: 2016-03 (GPC with tetrahydrofuran as eluent, polystyrene standard; size exclusion chromatography; SEC). Although modification of the organosilicon-modified resins along the backbone is possible, the inventors consider terminal modification particularly advantageous, assuming that the resulting terminal attachment to the filler is sterically advantageous with regard to the interaction with the silane coupling agents. Accordingly, a vulcanizable rubber mixture according to the invention is preferred, wherein the one or more organosilicon-modified resins are terminally organosilicon-modified resins. With regard to the chemical structure of the organosilicon modification, the inventors believe that this can be conveniently defined generically by linking the necessary silicon-containing functional group to the (co)polymer chain of the resin via a linker unit T. In this respect, a vulcanizable rubber mixture according to the invention is preferred, wherein the one or more organosilicon-modified resins comprise at least one structural element of formula II): II) (R 7 R 8 R 9 )Si - T -, where the radicals R 7 , R 8 and R 9 are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group comprises at least one of the radicals R 7 , R 8 and R 9is bonded to the Si atom via an oxygen atom, where T is a linear or branched, preferably linear, organic compound unit with 1 to 60, preferably 2 to 40, particularly preferably 5 to 20, non- hydrogen atoms via which the structural element of formula II) is attached to the (co)polymer chain of the organosilicon-modified resin. The expert understands that the (R 7 R 8 R 9 )Si group has the role of binding to the free OH groups on the filler surface, with possible configurations of the residues being disclosed, for example, in WO 2019 / 105614 A1. This (R 7 R 8 R 9 )Si group can be defined with respect to the radicals R 7 , R 8 and R 9 can be chosen quite flexibly, provided, however, that the organic group is at least one of the radicals R 7 , R 8 and R 9is bonded to the Si atom via an oxygen atom. As a result, the specific organosilicon-modified resins are organyloxysilylorganic compounds, which indicates to the person skilled in the art that the organosilicon-modified resin is suitable for organosilanization. The word component "organyloxysilyl" expresses that the corresponding organosilicon-modified resins have at least one organic radical that is bonded to the central silicon atom of the (R 7 R 8 R 9 )Si group. This organyloxy group, e.g., an alkoxy group such as an ethoxy group, is the leaving group that can be released during a condensation reaction on the surface of the filler with free OH groups on the filler surface, thus creating Si-O-Si bonds, for example, in the case of silicon-containing fillers. Even if organosilicon-modified resins can be used in which two of the three radicals R 7 , R 8 and R 9 are directly bonded to the central silicon via a carbon atom and which accordingly have only one leaving group, in practice, organosilicon-modified resins are preferred which have three, mostly even identical, leaving groups, which in practice are often ethoxy groups, which are released as ethanol during the reaction. The corresponding This configuration is usually preferred with regard to the synthesis of the compounds, production costs, and handling of the released leaving groups, which can be relatively easily removed from the mixture. Furthermore, corresponding organosilicon-modified resins with two or more leaving groups can, at least potentially, also bond with different filler particles. Despite the great flexibility in the design of the rests R 7 , R 8 and R 9 In the light of the above, any limitation is preferred that leads towards the particularly preferred (R 7 R 8 R 9 )Si group with three, mostly comparatively short-chain, alkoxy groups. Thus, a vulcanizable rubber mixture according to the invention is particularly preferred, wherein the radicals R 7 , R 8 and R 9are independently linear or branched alkoxy groups or alkyl groups having 1 to 10 carbon atoms, wherein at least one of the radicals R 7 , R 8 and R 9 is an alkoxy group. A vulcanizable rubber mixture according to the invention is preferred, wherein the radicals R 7 , R 8 and R 9 are independently linear alkoxy groups or alkyl groups. In this respect, additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein the radicals R 7 , R 8 and R 9 independently of one another are alkoxy groups or alkyl groups having 1 to 5 carbon atoms, preferably having 2 or 3 carbon atoms. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein at least two, preferably all, of the radicals R 7 , R 8 and R 9Alkoxy groups. In principle, a vulcanizable rubber mixture according to the invention is particularly preferred, wherein the radicals R 7 , R 8 and R 9 are identical. A vulcanizable rubber mixture according to the invention is particularly preferred, wherein the radicals R 7 , R 8 and R 9 ethoxy groups. With a view to the time and cost-efficient production of organosilicon-modified resins, the inventors propose that it is expedient to The linker unit T is preferably provided with at least one heteroatom and preferably also with further functional groups. This not only facilitates the binding of the organosilicon modification to the (co)polymer chain of the organosilicon-modified resin. Rather, the inventors' experiments have also shown that the properties of the organosilicon-modified resins and their effect in the vulcanizable rubber mixture can be influenced by the choice of functional groups and heteroatoms. In this context, a vulcanizable rubber mixture according to the invention is preferred, wherein the one or more organosilicon-modified resins comprise at least one structural element of the formula III): III) (R 7 R 8 R 9 )Si - U - A - V -, where the radicals R 7 , R 8 and R 9are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group comprises at least one of the radicals R 7 , R 8 and R 9is bonded to the Si atom via an oxygen atom, wherein U is a linear or branched, preferably linear, organic compound unit having 1 to 30, preferably 2 to 25, particularly preferably 5 to 20, non-hydrogen atoms, wherein U preferably comprises at least one functional group selected from the group consisting of amide groups, ester groups, carboxylic acid groups, ether groups and hydroxyl groups, particularly preferably selected from the group consisting of amide groups, ether groups and hydroxyl groups, wherein A is a heteroatom, preferably nitrogen or oxygen, particularly preferably oxygen, wherein V is a linear or branched, preferably linear, organic compound unit having 1 to 20, preferably 2 to 15, particularly preferably 5 to 10, non-hydrogen atoms, via which the structural element of formula III) is bonded to the (co)polymer chain of the organosilicon-modified resin, wherein V is preferably is an aromatic organic compound moiety, wherein V particularly preferably comprises an aromatic ring having 6 carbon atoms. Based on the inventors' experiments, it is particularly preferred if the bonding to the (co)polymer chain of the organosilicon-modified resin occurs via an aromatic ring system. A vulcanizable rubber mixture according to the invention is preferred, wherein the one or more organosilicon-modified resins comprise at least one structural element of formula IV): IV) (R 7 R 8 R 9 )Si - (CH2)i - W- A - Ar-, where the radicals R 7 , R 8 and R 9 are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group comprises at least one of the radicals R 7 , R 8 and R 9is bonded to the Si atom via an oxygen atom, where i is in the range from 1 to 20, preferably in the range from 2 to 15, particularly preferably in the range from 3 to 10, where A is a heteroatom, preferably nitrogen or oxygen, particularly preferably oxygen, where Ar is an aromatic ring, preferably an aromatic ring having 6 carbon atoms, via which the structural element of the formula III) is bonded to the (co)polymer chain of the organosilicon-modified resin, where W is a linear or branched, preferably linear, organic compound unit having 2 to 20, preferably 3 to 15, particularly preferably 4 to 10, non-hydrogen atoms, where W comprises at least one functional group selected from the group consisting of amide groups, ester groups, carboxylic acid groups, ether groups and hydroxyl groups, preferably selected from the group consisting of amide groups, ether groups and hydroxyl groups. In their own experiments, the inventors succeeded in identifying two structural elements for organosilicon modification, which, in combination with the specific silane coupling agents, Particularly good results have been achieved in resolving the conflicting objectives between rolling properties and abrasion resistance. A vulcanizable rubber mixture according to the invention is particularly preferred, wherein the one or more organosilicon-modified resins contain at least one structural element of the formula V): V) or formula VI): VI), where the radicals R 7 , R 8 and R 9 are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group is at least one of the radicals R 7 , R 8 and R 9 is bonded to the Si atom via an oxygen atom. As explained above, the organosilicon-modified resins comprise a (co)polymer chain as a backbone. These are copolymers which are produced or can be produced by polymerization from a specific monomer composition. In accordance with the expert understanding and the usual practice in the field of technology, it is expedient to define such (co)polymers by the production process or the starting materials used for production, since it is largely impossible to define the corresponding materials in their entirety in any other conclusive way. In accordance with the usual practice in the field of technology, the manufacturability is stated in relation to the monomer composition, which is in accordance According to the expert's understanding, this includes all monomeric components that are converted into monomer units of the (co)polymer chain during polymerization. Accordingly, other components that may be present in the reaction mixture during polymerization but are not incorporated into the (co)polymer chain during polymerization, such as solvents, are not considered part of the monomer composition. The starting point for the further description of the (co)polymer chain is thus initially a vulcanizable rubber mixture according to the invention, wherein the one or more organosilicon-modified resins comprise a (co)polymer chain which can be prepared by polymerizing a monomer composition. Based on this, a vulcanizable rubber mixture according to the invention is preferred, wherein the monomer composition comprises one or more polymerizable monomers selected from the group consisting of unsaturated aliphatic monomers and unsaturated aromatic monomers, preferably selected from the group consisting of unsaturated aromatic monomers, wherein the monomer composition preferably consists of these monomers. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein the monomer composition comprises one or more polymerizable monomers selected from the group consisting of acrylates, methacrylates, terpenes, unsaturated fatty acids, and vinyl aromatic compounds, wherein the monomer composition preferably consists of these monomers. According to the inventors, a vulcanizable rubber mixture according to the invention is particularly preferred, wherein the monomer composition comprises one or more polymerizable monomers selected from the group consisting of ethylenically unsaturated aromatic monomers, preferably a- Methylstyrene and / or styrene, wherein the monomer composition preferably consists of these monomers. Accordingly, a vulcanizable rubber mixture according to the invention is also particularly preferred, wherein the one or more organosilicon-modified resins comprise a (co)polymer chain of polymerized a-methylstyrene and / or styrene, preferably a-methylstyrene and styrene. The second essential component of the vulcanizable rubber mixtures according to the invention are the specific organosilicon compounds according to the formulas la) and lb). According to the inventors' findings, it is surprisingly possible to achieve excellent abrasion resistance even when using organosilicon-modified resins using these specific organosilicon compounds, while at the same time achieving essentially the same or even improved rolling properties such as rolling resistance and wet grip. Irrespective of the specific embodiment, in the opinion of the inventors, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises the one or more organosilicon compounds in a combined mass fraction in the range from 0.5 to 25 phr, preferably in the range from 1 to 20 phr, particularly preferably in the range from 2 to 15 phr. Based on the content of the fillers with free OH groups on the filler surface, a vulcanizable rubber mixture according to the invention is preferred, wherein the vulcanizable rubber mixture comprises the one or more Organosilicon compounds in a combined mass fraction in the range of 1 to 50 phf, preferably in the range of 2 to 40 phf, particularly preferably in the range of 3 to 30 phf, The person skilled in the art will understand that the above statements on the (R 7 R 8 R 9)Si group also applies to the (R 1 R 2 R 3 )Si group or the (R 4 R 5 R 6 )Si group. Accordingly, a vulcanizable rubber mixture according to the invention is preferred, wherein the radicals R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently linear or branched alkoxy groups or alkyl groups having 1 to 10 carbon atoms, wherein at least one of the radicals R 1 , R 2 and R 3 and one of the residues R 4 , R 5 and R 6 is an alkoxy group. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein the radicals R 1 , R 2 , R 3 , R 4 , R 5 and R 6are independently linear alkoxy groups or alkyl groups. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein the radicals R 1 , R 2 , R 3 , R 4 , R 5 and R 6 independently of one another are alkoxy groups or alkyl groups having 1 to 5 carbon atoms, preferably having 2 or 3 carbon atoms. In this respect, additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein at least two, preferably all, of the radicals R 1 , R 2 and R 3 and / or the residues R 4 , R 5 and R 6 alkoxy groups. A vulcanizable rubber mixture according to the invention is also particularly preferred, wherein the radicals R 1 , R 2 and R 3 and / or the residues R 4 , R 5 and R 6, preferably all of these radicals, are identical. Finally, a vulcanizable rubber mixture according to the invention is particularly preferred, wherein the radicals R 1 , R 2 , R 3 , R 4 , R 5 and R 6 ethoxy groups. The organosilicon compounds of formula la) are compounds also known as blocked mercaptosilanes. In these compounds, the sulfur intended for reaction with the diene rubber is protected by a thiolic acid ester, which can be converted to a thiol. The organic compound unit X a, which determines the distance between the silicon and the sulfur, can advantageously be chosen quite freely and, for example, can also include heteroatoms. Within the scope of the invention, however, the proviso is that the number of non-hydrogen atoms in the connecting chain between the Si atom and the S is 4 or more. This means that the silicon and the sulfur atom of the thiolic acid ester are separated from each other by at least four additional atoms or five covalent bonds, as would be possible, for example, with a linear alkyl chain with 4 or more carbon atoms. Provided that the minimum distance between the silicon atom and sulfur atom is maintained, the organic compound unit X aThere are only a few limitations a priori in terms of design, so that the skilled person has a wide choice in design. However, in view of the production costs of the corresponding compounds, the possible raw material basis, and the feasible synthesis routes, it is, in the opinion of the inventors, preferable to use the organic compound unit X a to be as simple as possible to implement and, for example, to avoid very long chains, extensive branching, or the presence of functional groups. The inventors' experiments have shown very advantageous effects even for such comparatively simple designs. Against this background, a vulcanizable rubber mixture according to the invention is preferred, wherein X a is a linear organic compound unit. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein X ais an organic compound unit having 5 to 30, preferably 6 to 25, particularly preferably 7 to 20, most particularly preferably 8 to 12, non-hydrogen atoms. A vulcanizable rubber mixture according to the invention is particularly preferred, wherein X a is an alkyl chain, preferably with 4 to 20 carbon atoms. The inventors have discovered in their own experiments that the advantages of the present invention are particularly evident when the length of the connecting unit is further increased, so that the distance between the silicon atom and the sulfur atom of the thiolic acid ester further increases. Accordingly, a vulcanizable rubber mixture according to the invention is preferred, wherein X a is an organic compound unit in which the number of non-hydrogen atoms in the connecting chain between the Si atom and the S atom is 5 or more, preferably 6 or more, particularly preferably 7 or more, most preferably 8 or more. According to the inventors' findings, the blocked mercaptosilanes according to formula la) represent a notable exception to the above-mentioned fundamental advantages of comparatively simple organic compound units. It has been found that particularly advantageous results can be achieved when X a comprises one or more thioether groups, so that X a itself comprises further sulfur atoms. Excellent results were obtained with corresponding blocked mercaptosilanes, particularly in combination with the organosilicon compounds of formula VIII) disclosed below. In other words, a vulcanizable rubber mixture according to the invention is preferred, where X a an organic compound unit of formula VII is: VII) - Z a1 - (S - Z a2 )j - , where j is an integer in the range from 1 to 3, where Z a1 and Z a2are independently linear or branched organic compound units having 1 to 20 non-hydrogen atoms, where Z a2 can be the same or different for each repetition unit, so that not all Z a2 j must be identical, even if this is preferred. In this respect, a vulcanizable rubber mixture according to the invention is preferred, where j is 1 or 2, preferably 1. Also with regard to the organic compound units Z a1 and Z a2 The above statement applies, namely that from many synthesis and manufacturing points of view, it is advantageous to design these groups with a comparatively simple structure. In this respect, a vulcanizable rubber mixture according to the invention is preferred, where Z a1 and Z a2are independently of one another a linear or branched, preferably linear, organic compound unit having 1 to 15, preferably 2 to 10, particularly preferably 3 to 8, non-hydrogen atoms. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is particularly preferred, wherein Z a1 and Z a2 alkyl chains. In this embodiment, despite the inherent length of the polythioether, it is advantageous to choose a relatively large distance between the silicon atom and the first sulfur or to provide a minimum distance. Therefore, a vulcanizable rubber mixture according to the invention is preferred, where Z a1 is a linear or branched organic compound unit in which the number of non-hydrogen atoms in the connecting chain between the Si atom and the first S atom is 3 or more, preferably 4 or more, particularly preferably 5 or more. According to the inventors, particularly advantageous vulcanizable rubber mixtures according to the invention for these polythioether-based blocked mercaptosilanes are obtained when they are used in the vulcanizable rubber mixture together with another polythioether-based organosilicon compound of the formula VIII): VIII) (R 1 R 2 R 3 )Si - X c1 - (S - Z c )m - S - X c2 - Si(R 4 R 5 R 6 ), where m is an integer in the range from 1 to 3, where X c1 and X c2 are independently linear or branched organic compound units with 3 to 20 non-hydrogen atoms, and where Z cis a linear or branched, preferably linear, organic compound unit having 1 to 20 non-hydrogen atoms. This means that it is particularly preferred if the vulcanizable rubber mixture according to the invention additionally comprises these polythioether-based organosilicon compounds. Preference is given to a vulcanizable rubber mixture according to the invention wherein the quotient of the combined mass fraction of the organosilicon compounds of formula Ia) divided by the combined mass fraction of the polythioether-based organosilicon compounds of formula VIII) is in the range from 60:1 to 1:30, preferably in the range from 30:1 to 1:15. Preferred embodiments of the polythioether-based organosilicon compounds of formula VIII are obtained analogously to the above statements regarding the polythioether-based blocked mercaptosilanes. Consequently, in this case, too, a vulcanizable rubber mixture according to the invention is preferred, where X c1 and X c2 are, independently of one another, linear or branched, preferably linear, organic compound units having 3 to 15, preferably 3 to 10, non-hydrogen atoms. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein X c1 and X c2 alkyl chains. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is also preferred, wherein X c1 and X c2 are identical. With regard to the organic compound unit in the repeating unit, a vulcanizable rubber mixture according to the invention is preferred, wherein Zc an organic compound unit having 1 to 15, preferably 2 to 10, particularly preferably 3 to 8, non-hydrogen atoms, where Z c is preferably an alkyl chain. Z c can be the same or different for each repetition unit, so that not all Z c m must be identical, even if this is preferred. In this respect, a vulcanizable rubber mixture according to the invention is preferred, where m is 1 or 2, preferably 1. For the purpose of matching the polythioether-based blocked mercaptosilanes, it is preferred if the polythioether-based organosilicon compounds of formula VIII are as similar as possible to the preferred polythioether-based organosilicon compounds of formula Ia). In this context, a vulcanizable rubber mixture according to the invention is preferred, wherein Z a1 and X c1 are identical, and / or where Z a2 and Z c, are at least partially identical, and / or where m = j. For all types of blocked mercaptosilanes, the inventors believe that, as a first approximation, the remainder of the protecting group Y a plays a rather minor role with regard to the performance properties of the blocked mercaptosilanes, whereby comparatively simply structured residues are preferred for cost and handling reasons. Accordingly, a vulcanizable rubber mixture according to the invention is preferred, wherein Y a is an organic group having 1 to 15, preferably 2 to 10, particularly preferably 3 to 8, non-hydrogen atoms. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein Y a is an alkyl group. The organosilicon compounds of formula 1b) are polysulfides containing a sulfur-sulfur bond as a functional group and having silicon-containing functional groups on both sides. According to the inventors, tetrasulfides are particularly advantageous in this regard. Accordingly, a vulcanizable rubber mixture according to the invention is preferred, where n is an integer in the range from 4 to 8, preferably in the range from 4 to 6, particularly preferably 4, and / or where n is divisible by 2 without a remainder. The following also applies to the organosilicon compounds of formula 1b): the respective compound units X b1 and X b2 a certain minimum distance must be ensured in order to achieve the beneficial effects on the abrasion properties. In this case, too, In the inventors' opinion, it is advantageous to choose a higher minimum distance. Thus, a vulcanizable rubber mixture according to the invention is preferred, where X b1 and X b2 are independently linear or branched organic compound units in which the number of non-hydrogen atoms in the connecting chain between the Si atom and the S atom is 4 or more, preferably 5 or more, particularly preferably 6 or more. Provided that the minimum distance between the silicon atom and sulfur atom is maintained, the organic compound units X b1 and X b2 can be designed flexibly in principle. However, comparatively simple chain structures are preferred in this case as well. Accordingly, a vulcanizable rubber mixture according to the invention is preferred in this case, where X b1 and X b2are, independently of one another, linear or branched, preferably linear, organic compound units having 3 to 15, preferably 3 to 10, non-hydrogen atoms. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is preferred, wherein X b1 and X b2 alkyl chains. In view of the synthesis effort but also the homogeneity of the coupling agents resulting from the organosilicon compounds of formula 1b) in the vulcanizable rubber mixture, it is, in the opinion of the inventors, particularly advantageous to choose the two radicals to be identical. Additionally or alternatively, a vulcanizable rubber mixture according to the invention is particularly preferred, where X b1 and X b2 are identical. The person skilled in the art will understand that the invention also relates to vulcanizable rubber mixtures according to the invention which comprise only one type of the specific organosilicon compounds. Thus, even on their own, a vulcanizable rubber mixture according to the invention is preferred, wherein the one or more organosilicon compounds are selected from the group consisting of organosilicon compounds of the formula Ia) and / or wherein the vulcanizable rubber mixture comprises organosilicon compounds of the formula la). Likewise preferred on its own is a vulcanizable rubber mixture according to the invention, wherein the one or more organosilicon compounds are selected from the group consisting of organosilicon compounds of the formula lb) and / or wherein the vulcanizable rubber mixture comprises organosilicon compounds of the formula lb). However, particularly preferred is a vulcanizable rubber mixture according to the invention, wherein the vulcanizable rubber mixture comprises two or more different organosilicon compounds, preferably at least one organosilicon compound of the formula la) and at least one organosilicon compound of the formula lb). Vulcanizates or rubber products can be produced in the usual way from the vulcanizable rubber mixtures according to the invention. The corresponding process for producing a vulcanizate or a rubber product comprises, in addition to the production of the vulcanizable rubber mixture according to the invention, for example, the following additional step: Vulcanizing the vulcanizable rubber mixture according to the invention, preferably as part of a rubber green body, particularly preferably an unvulcanized vehicle tire green body, to obtain a vulcanizate, preferably as part of a rubber product, preferably a pneumatic vehicle tire. The vulcanizable rubber mixture according to the invention is vulcanized, for example, by the process customary in the tire industry, for example by sulfur-based crosslinking. The invention accordingly also relates to a vulcanizate, which can be produced or is produced by vulcanization of a vulcanizable Rubber mixture. A vulcanizate according to the invention is preferred in this respect, wherein the vulcanizate can be produced by vulcanization at a temperature in the range of 120 to 200°C, preferably in the range of 130 to 180°C. Accordingly, the invention also relates to a rubber product comprising a vulcanizate according to the invention. An example of a rubber product according to the invention is one in which the rubber product is selected from the group consisting of shoe soles, belts, hoses, and straps. However, for essentially all cases, a rubber product according to the invention is preferred, wherein the rubber product is a vehicle tire, preferably a pneumatic vehicle tire. Finally, the use of a vulcanizable rubber mixture according to the invention and / or a vulcanizate according to the invention in the production of rubber products for improving the abrasion properties is also disclosed. In the following, the invention and preferred embodiments of the invention are further explained and described with reference to experiments. A. Production of vulcanizable rubber compounds: The vulcanizable rubber compounds were produced according to the process commonly used in the rubber industry under standard conditions in three stages in a laboratory mixer (300 mL, Brabender Mixer, CW Brabender GmbH & Co., South Hackensack, NJ, US). In the first mixing stage (basic mixing stage, rotor speed: 70 rpm, starting temperature: approx. 130 °C, final temperature: approx. 149 °C), all components except the vulcanization system (sulfur and vulcanization-influencing substances) were mixed. By adding the vulcanization system in the second stage (final mixing stage; rotor speed: 55 rpm, Temperature: approx. 80 °C) the vulcanizable rubber mixture was produced. The substances used are listed in Table 1. Table 1 - Substances used Standardized, vulcanized vulcanizates were produced as test specimens from all vulcanizable rubber compounds by vulcanization (vulcanization conditions: t: 20 min, T: 160 °C). B. Determination of the physico-chemical properties of the vulcanizates: The following physicochemical properties were determined on the vulcanizates produced using the determination methods described below: Shore A hardness at room temperature (25 °C) according to DIN EN ISO 868:2003-10; Loss factor tan ö at 0 °C and 70 °C from temperature-dependent dynamic-mechanical measurement using an Eplexor according to ISO 4664-1:2011-11 (constant force, 10 % compression, ± 0.2 % strain amplitude, frequency 10 Hz) and temperature at maximum loss factor (T @ tan ö max); Rebound resilience at room temperature (RT) and 70 °C according to ISO 4662:2017-06; and Abrasion at room temperature according to DIN ISO 4649:2021 (method A with non-rotating test specimens). The loss factor tan δ (0 °C) serves as an indicator of a tire's wet grip. The higher the loss factor tan δ (0 °C), the better the wet grip properties. The loss factor tan δ (70 °C) serves as an indicator for the rolling resistance of a tire, where a smaller loss factor tan δ (70 °C) means lower rolling resistance. The greater the difference A tan δ (loss factor tan δ (0 °C) - loss factor tan δ (70 °C)), the more advantageous the respective vulcanizate is with regard to the trade-off between wet grip properties and rolling resistance (this applies accordingly to the difference in rebound resilience ARB (RB(70 °C) - RB(RT)). C. 1 . Series of experiments: In the first series of tests, eight vulcanizable rubber compounds were produced, the composition of which is given in Table 2. Table 2 - Vulcanizable rubber compounds according to the first test series (all data in phr) The mass fraction of the organosilicon compounds was adjusted to introduce a constant amount of substance. The material properties determined for the corresponding vulcanizates are summarized in Table 3. Table 3 - Material properties for the 1st test series D. 2nd series of experiments: In the second series of tests, five vulcanizable Rubber compounds were produced, the composition of which is given in Table 4. Table 4 - Vulcanizable rubber compounds according to 2. Test series (all data in phr) The mass fraction of the organosilicon compounds was adjusted to introduce a constant amount of substance. The material properties determined for the corresponding vulcanizates are summarized in Table 5. Table 5 - Material properties for the 2nd test series E. Rating: The results of the first and second series of tests show that vulcanizates can be obtained from the vulcanizable rubber mixtures according to the invention which advantageously solve the conflict of objectives between rolling resistance, wet grip and abrasion. By using the specific organosilicon compounds in combination with the organosilicon-modified resins, vulcanizates are obtained whose A tan δ and A RB as indicators for the conflict of objectives between rolling resistance and wet grip are at least comparable to those of the respective comparison system analogous to the state of the art (V2 or V8) and in many cases even significantly improved. Against this background, it is particularly advantageous that all vulcanizates according to the invention show significantly improved abrasion behavior compared to the respective comparison system. The results indicate that the organosilicon-modified resin 2 likely places higher demands on the organosilicon compounds used. Based on the first series of tests alone, it could be assumed that silane 2 might also offer advantages. However, the second series of tests clearly shows that this silane 2 cannot demonstrate a reliable improvement in abrasion behavior, and the decrease in A tan δ and A RB is also significantly more pronounced.

Claims

Claims 1. Vulcanizable rubber mixture, comprising: a) one or more diene rubbers, b) one or more fillers selected from the group consisting of fillers having free OH groups on the filler surface, c) one or more organosilicon-modified resins, and d) one or more organosilicon compounds selected from the group consisting of organosilicon compounds of the formulas la) and lb): la) (R 1 R 2 R 3 )Si - X a - S - (C=O) - Y a , and lb) (R 1 R 2 R 3 )Si - X b1 - Sn - X b2 - Si(R 4 R 5 R 6 ), where the residues R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group is at least one of the radicals R 1 , R2 and R 3 and one of the residues R 4 , R 5 and R 6 is bonded to the Si atom via an oxygen atom, where n is an integer in the range from 2 to 10, where X a is a linear or branched organic compound unit having 4 to 40 non-hydrogen atoms, wherein the number of non-hydrogen atoms in the connecting chain between the Si atom and the S atom is 4 or more, wherein X b1 and X b2 are independently linear or branched organic compound units having 4 to 20 non-hydrogen atoms, wherein the number of non-hydrogen atoms in the connecting chain between the Si atom and the S atom is 4 or more, and wherein Y a a linear or branched organic group having 1 to 20 non-hydrogen atoms.

2. Vulcanizable rubber composition according to claim 1, wherein the vulcanizable rubber composition comprises the one or more fillers in a combined mass fraction in the range of 5 to 250 phr.

3. Vulcanizable rubber mixture according to one of claims 1 or 2, wherein the one or more fillers are selected from the group consisting of amorphous silicon dioxides.

4. A vulcanizable rubber composition according to any one of claims 1 to 3, wherein the vulcanizable rubber composition comprises the one or more organosilicon-modified resins in a combined mass fraction in the range of 0.5 to 60 phr.

5. Vulcanizable rubber mixture according to one of claims 1 to 4, wherein the one or more organosilicon-modified resins comprises at least one structural element of formula II): II) (R 7 R 8 R 9 )Si - T -, where the radicals R 7 , R 8 and R9 are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group comprises at least one of the radicals R 7 , R 8 and R 9 is bonded to the Si atom via an oxygen atom, wherein T is a linear or branched organic compound unit having 1 to 60 non-hydrogen atoms, via which the structural element of formula II) is bonded to the (co)polymer chain of the organosilicon-modified resin.

6. Vulcanizable rubber mixture according to one of claims 1 to 5, wherein the one or more organosilicon-modified resins comprise at least one structural element of formula III): III) (R 7 R 8 R 9 )Si - U - A - V - where the radicals R 7 , R 8 and R 9are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group comprises at least one of the radicals R 7 , R 8 and R 9 is bonded to the Si atom via an oxygen atom, wherein U is a linear or branched organic compound unit having 1 to 30 non-hydrogen atoms, wherein A is a heteroatom, wherein V is a linear or branched organic compound unit having 1 to 20 non-hydrogen atoms, via which the structural element of formula III) is bonded to the (co)polymer chain of the organosilicon-modified resin.

7. Vulcanizable rubber mixture according to one of claims 1 to 6, wherein the one or more organosilicon-modified resins comprise at least one structural element of formula IV): IV) (R 7 R 8 R 9 )Si - (CH2)i - W- A - Ar-, where the radicals R 7 , R 8 and R 9are independently linear or branched organic groups having 1 to 20 non-hydrogen atoms, wherein the organic group comprises at least one of the radicals R 7 , R 8 and R 9 is bonded to the Si atom via an oxygen atom, where i is in the range from 1 to 20, where A is a heteroatom, where Ar is an aromatic ring, via which the structural element of formula III) is bonded to the (co)polymer chain of the organosilicon-modified resin, where W is a linear or branched organic compound unit having 2 to 20 non-hydrogen atoms, wherein W comprises at least one functional group selected from the group consisting of amide groups, ester groups, carboxylic acid groups, ether groups and hydroxy groups.

8. A vulcanizable rubber composition according to any one of claims 1 to 7, wherein the vulcanizable rubber composition comprises the one or more organosilicon compounds in a combined mass fraction in the range of 0.5 to 25 phr.

9. Vulcanizable rubber mixture according to one of claims 1 to 8, wherein X a an organic compound unit of formula VII is: VII) - Z a1 - (S - Z a2 )j - , where j is an integer in the range from 1 to 3, where Z a1 and Z a2 are independently linear or branched organic compound units with 1 to 20 non-hydrogen atoms.

10. Vulcanizate, producible or produced by vulcanization of a vulcanizable rubber mixture according to one of claims 1 to 9.

11. A rubber product comprising a vulcanizate according to claim 10.

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