Rubber mixture with improved abrasion

FIELD: chemistry.

SUBSTANCE: invention relates to a rubber mixture, particularly for vehicle tyres. The rubber mixture contains 30-100 pts.wt of at least one diene rubber per 100 pts.wt rubber, 20-200 pts.wt of at least one filler per 100 pts.wt rubber, 0-200 pts.wt, of additional additives per 100 pts.wt rubber, a sulphur-containing vulcanisation system which includes free sulphur, a sulphur donor and silane, with sulphur concentration due to said ingredients between 0.025 and 0.08 mol per 100 pts.wt rubber, of which elementary sulphur accounts for 0-70%, the sulphur donor accounts for 5-30% and the silane accounts for 20-95%, and 0.1-10 pts.wt of at least one vulcanisation accelerator per 100 pts.wt rubber.

EFFECT: invention improves wearing characteristics of a vulcanised rubber mixture.

22 cl, 11 tbl, 27 ex

 

The invention relates to a rubber compound with improved characteristics abrasion, in particular for tires.

With the purpose of influencing the properties of the mixture and of the vulcanizate, the mixtures may be extremely large variety of additives, and/or used for this purpose special polymers. Examples of additives that should be mentioned here, are the fillers (e.g. carbon black), plasticizers, antioxidants, and system linkage containing sulfur, accelerators and activators. However, if one property is improved by changing the mixture, it is often accompanied by a deterioration in other properties, and therefore there is some controversy requirements. Examples of such conflicting requirements in the case of mixtures of tyre tread detected in relation to the characteristics of friction and increased heat generation, which leads to the worst elasticity to rebound and, therefore, the worst rolling resistance. The specific method used to resolve these conflicting requirements are changes in the composition of the mixture, as well as specific changes or modification in supplements in order to achieve an improved level are usually inversely correlated properties.

An important group of additives that affect the rate of cure and physical properties of the vulcanizates, is a group of vulcanization accelerators. Existence is contained diverse group of vulcanization accelerators, suitable for the production of tyres and well-known specialists in the field of technology, which can also be used in combination with each other with possible synergistic effects.

These vulcanization accelerators may be used to activate the sulfur that is used as a vulcanizing agent. Here the addition of sulfur and vulcanization accelerator selected individually in relation to the properties of the rubber tires that need to be achieved. These properties that need to be achieved depend on the mesh obtained during vulcanization, for example, between polymer and fillers, and is therefore of great importance to be given to the nature and degree of crosslinking from the viewpoint of the physical properties of the vulcanizates.

The prior art in respect of the vulcanization systems or systems stitching will now be described in more detail in the following publications:

(D1) German Patent document No. 2536674 A1

(D2) German Patent document No. 60303203 T2

(D3) German Patent document No. 4207028 A1

(D4) German Patent document No. 4036420 A1

(D5) German Patent document No. 4037756 A1

(D6) the European patent document No. 0530590 B1

Patent document D1 describes capable of crosslinking of the rubber mixture comprising silica fillers, and method of stitching. In the most General terms stated herein are capable of Shiva is where the rubber mixture comprises, at least, from 1 to 300 weight parts of silica filler, from 0 to 300 weight parts of carbon black and the amount comprising from 0.02 to 10 parts by weight of at least one vulcanization accelerator, known as such for the vulcanization of rubber, and at least one organosilane. No particular polymer system is not stated, nor provide detailed data regarding the used fillers.

In patent document D2 disclosed polysulfide siloxane, which can be used as a crosslinking agent, and a method for its manufacture. Here the system stitching concludes described polysulfide siloxane and at least one primary accelerator of vulcanization. Polysulfide siloxane is used in the composition based on a diene elastomer and firming filler. Declared diene elastomer includes various components, and the stated fillers include, in particular, silica and carbon black, and each of the disclosed here are examples of the invention relates to a rubber mixture comprising natural rubber as the sole polymer and carbon black as the sole filler.

Patent documents D3, D4 and D5 disclose the vulcanizates for hoses, seals and ring rollers and other rubber products, not having nitrosamino the toxicity, preferably, includes special Muramvya and/or sour vulcanizing agents, and, nevertheless, still usually need small quantities of elemental sulfur for vulcanization or crosslinking.

In patent document D6 disclosed a method of manufacturing a diene rubber vulcanizates with extremely high resistance to ageing and resistance prevalently. Here diene rubber vulcanizates include from 1 to 2.5 parts sour accelerator or from 0.2 to 0.8 parts sulfenamide accelerator, or from 0.3 to 2.5 parts sour accelerator and from 0.1 to 0.8 parts sulfenamide accelerator. In addition, from 0.1 to 0.2 parts of sulfur are used per 100 parts of rubber, preferably, oil-filled diene rubber.

Therefore, the aim of the present invention is to provide a rubber mixture which solves or at least mitigates the above-mentioned contradiction of requirements, in particular, by optimizing the vulcanization system to improve the characteristics of abrasion, while other physical properties remain almost unchanged.

This goal is achieved by a rubber mixture of the following composition:

- from 30 to 100 weight parts per 100 weight parts of rubber, of at least one diene rubber;

- from 20 to 200 weight parts per 100 weight hour is her rubber at least one filler;

- from 0 to 200 weight parts per 100 weight parts of rubber other additives;

- sulfur-containing vulcanization system, which includes elemental sulfur, sulfur donor and the silane concentration of sulfur due to these ingredients, between 0.025 and 0.08 mol per 100 weight parts of rubber, free sulfur is from 0 to 70%, the sulfur donor is from 5 to 30%, and the silane is from 20 to 95%, and

the 0.1 - 10 weight parts per 100 weight parts of rubber, at least, of a vulcanization accelerator.

Also favorable is the inclusion as vulcanization activators of zinc oxide and stearic acid.

The data presented in the form of a number of weight parts per 100 weight parts of rubber"used in this description are standard quantitative data for mixes in the rubber industry. Here the number of added parts by weight of the individual substances is always based on 100 weight parts of the total weight of all rubber present in the mixture. Used the unit "mol per 100 weight parts of rubber, respectively, based on the molar amounts.

It has been unexpectedly found that improved results may appear when the vulcanization system has the above basic features, which are about the total amount of sulfur, enter free sulfur, silane, and sulfur donor, and the proportion of sulfur due to these three sources. The comparative examples show, for example, that in the prior art uses low sulfur content, but the content of sulfur donors in these formulations, as a rule, are small or zero. Adding sulfur composition according to the method of the invention can be achieved unexpectedly good characteristics abrasion, while other physical properties remain unchanged.

This allows you to resolve conflicting requirements, for example, rolling resistance, and abrasion. This applies not only to the protector, but also to other components of the tyre, for example, to a side. Rubber compound for the other components of the tire are summarized below and are also called frame components or frame blends, which is traditional in the technology of tire production.

At least one diene rubber selected from a group comprising natural polyisoprene and/or synthetic polyisoprene and/or polybutadiene, and/or a copolymer of styrene and butadiene, and/or polymerized in a solution of a copolymer of styrene and butadiene, and/or polymerized in emulsion copolymer of styrene and butadiene, and/or a ternary copolymer of styrene, isoprene and butadiene, and/or copolym the p butadiene and isoprene, and/or butyl rubber, and/or halogenation rubber and/or ethylene-propylenediene rubber, and/or chloroprene rubber, and/or a copolymer of butadiene and Acrylonitrile, and/or partially hydrogenated diene (co)polymers. The polymers can be defunctionalization or functionalized, it is also possible mixture of functionalized and defunctionalizing polymers.

Various applications in the tires (tread/carcass passenger car/truck) associated with various preferred rubber tracks:

Bus passenger vehicle (PA):

The rubber mixture preferably includes at least one styrene-butadiene rubber (SBC preferably polymerized in solution styrene-butadiene rubber (RSBC)).

Bus truck:

The rubber mixture preferably comprises 40 to 100 weight parts per 100 weight parts of natural rubber polyisoprene and/or synthetic polyisoprene, 0-50 weight parts per 100 weight parts of rubber, butadiene rubber, 0 to 60 weight parts per 100 weight parts of rubber styrene-butadiene rubber, preferably, polymerized in solution styrene-butadiene rubber.

Frame:

The rubber mixture preferably comprises from 20 to 100 weight parts per 100 weight parts of rubber naturallog is of polyisoprene and/or synthetic polyisoprene, 0-80 weight parts per 100 weight parts of rubber, butadiene rubber, 0-50 weight parts per 100 weight parts of rubber styrene-butadiene rubber.

The rubber mixture comprises 20 to 200 weight parts per 100 weight parts of rubber, of at least one filler. If the rubber mixture used for car tires, the amount of filler is preferably 50-200 weight parts per 100 weight parts of rubber, particularly preferably from 60 to 150 weight parts per 100 weight parts of rubber, extremely preferably from 45 to 150 weight parts per 100 weight parts of rubber. For use in tires of the truck, the amount of filler is preferably from 40 to 70 weight parts per 100 weight parts of rubber, particularly preferably from 40 to 55 weight parts per 100 weight parts of rubber, extremely preferably from 20 to 60 weight parts per 100 weight parts of rubber, while the amount of filler for use in the solid mixtures is preferably from 30 to 80 weight parts per 100 weight parts of rubber, preferably from 10 to 50 weight parts per 100 weight parts of rubber.

In one of the private embodiments of the invention, at least 10 weight parts per 100 weight parts of the rubber filler shall contain on the surface of the silane R is the promo-able group, for example, the Oh-group. This filler is selected from a number of known fillers such as amorphous silica, other mineral fillers or modified polymer microgels, for example Nanoprene®(LanXess).

Used in tyre industry, amorphous silica, as a rule, are of precipitated silica, which, in particular, are characterized by their surface. Here is used to characterize the nitrogen surface area (BET) according to German industrial standards DIN 66131 and DIN 66132, which is used here to characterize, which is a measure of the inner and outer surface areas of the filler in m2/year

If as the primary filler is silica, the silica used in the invention have a nitrogen surface area (BET) of from 100 to 300 m2/g, preferably from 120 to 250 m2/g, particularly preferably from 140 to 220 m2/year

If as the primary carbon black filler is used, the invention uses carbon black iodine number according to the standard of the American society for testing and materials ASTM D 1510 from 80 to 300 g/kg and with the number of DPB from 115 to 200 cm3/100 g According to ASTM D 2414 number DPB uses dibutyl for determining the specific volume of absorption of carbon black or pale colored filler.

However, so is e possible to use a combination of silica, with these properties, and soot with the specified properties as a substantial component of the filler.

The rubber mixture along with silica and soot may also include other fillers such as aluminum hydroxide, sheet silicates, lime, chalk, starch, magnesium oxide, titanium dioxide, rubber gels, short fibers, etc. in any desired combination.

The silanes used as part of the vulcanization system and have the following classification:

The silanes used in rubber industry, can be classified by the ratio of S:Si in the molecule, the absolute number of Si atoms in the molecule or molecular weight on each Si atom:

Class 1:

- S:Si>1.6 and

the number of atoms of Si>1, and

- the ratio of molecular weight on each atom Si<390 g/mol,

- includes, for example, organosilane described in German patent document No. 2536674 A1 for x>3, which are described, for example, as Si69®(TESPT), Evonik, or silanes described in the application U.S. No. 11/617683, 11/617649, 11/617663 or 11/617659, preferably, the silanes branched hydrocarbon rings, described in the patent document U.S. No. 11/617663 (silanes with similarbank skeleton).

Class 2:

- S:Si<1.6 and

the number of atoms of Si≥1, and

- the ratio of molecular weight on each atom Si<390 g/mol,

include, for example, organosilane described in German patent document No. 2536674 A1 for x<3, and are described, for example, as Si75®(TESPD), Evonik, or silanes described in the application U.S. No. 11/617683, 11/617649, 11/617663, 11/617659, or silanes types NXT, NXT with low content of volatile organic compounds or NXT-Z (Momentive Performance Materials Inc.).

Class 3:

- unlimited ratio of S:Si, i.e. the ratio can take any positive value, and

the absolute number of atoms of Si≥1, and

- the ratio of molecular weight on each atom Si>390 g/mol,

- includes, for example, silanes described in the patent document U.S. No. 20060161015, patent document WO No. 2008009514 or patent document U.S. No. 11/617678, and which are available, for example, under the trade name Si363®(Evonik).

Silanes selected from these three categories, preferred for use in the system of vulcanization of the rubber mixtures according to the invention.

The sulfur donors, including cross-linking agents, giving the sulfur in the grid, known to experts in the art or are described, for example, in the Handbook Hofmann & Gupta: Handbuch der Kautschuktechnologie (Handbook of rubber technology), Gupta-Verlag (2001), Chapter 7. Preference is given to turangalila, preferably, TBzTD or dithiophosphates, for example, DipDis (bis-(aminobutiramida)thiophosphorylated), SDT (for example, Rhenocure SDT 50®, Rheinchemie Gmb), cyclicalities (ZDT) (for example, Rhenocure ZDT/S®, Rheinchemie GmbH).

The proportion of the vulcanization accelerator is from 0.1 to 10 weight parts per 100 weight parts of rubber, preferably from 1 to 6 weight parts per 100 weight parts of rubber, at least one vulcanization accelerator selected from the group comprising thiazole accelerators, sour accelerators, sulfenamide accelerators, guanidine accelerators, Muramvya accelerators, dithiocarbamate accelerators, amine accelerators, thiourea and/or other accelerators except those who are donors of sulphur.

Preferably, at least one accelerator selected from the group sulfenamide accelerators; it is preferable to use N-tert-butyl-2-benzothiazolesulfenamide (TBBS) or cyclohexylbenzothiazole (CBS).

Preferred is a molar ratio of the sulfur donor/sulfenamid from 0.35 to 0.6, preferably 0,45-0,55.

In addition, added free sulfur component from 0 to 70% of the sulfur introduced vulcanization system defined above.

Usually the General quantitative proportions of other additives is 0 to 200 weight parts per 100 weight parts of rubber. Other additives include, for example, well-known specialists in the field of technology additional vulcanizing auxiliary is nutrient supplements different from accelerators, sulfur donors and sulfur, where examples are ZnO, stearic acid, resin, etc. Other additives include one or more process auxiliary additives, one or more plasticizers, one or more antiozonants, and one or more antioxidants. If appropriate, you can also add additional additives, well known in the technology of rubber compounds.

In addition, additives comprise from 0 to 120 weight parts per 100 weight parts of rubber, of at least one plasticizing oil, which is, for example, mineral oil selected from the group comprising DAE (distilled aromatic extracts) and/or RAE (residual aromatic extract), and/or TDAE (treated distilled aromatic extracts), and/or MES (gently extracted solvents), and/or naphthenic oil.

In the rubber compound can also be present from 0 to 80 weight parts per 100 weight parts of rubber, of at least one additional plasticizer. This other plasticizer may be a synthetic plasticizer and/or fatty acid, and/or derived fatty acids and/or resin and/or factis, and/or low molecular weight polymer, and/or vegetable oil.

Rubber mixture according to the invention may use is to be for the manufacture of tires. This bus can be a solid rubber tire or pneumatic tire. A particularly important application is the use in the tread of the pneumatic tire and the frame of the mixture for pneumatic tires. Here the expression "frame blend" includes the side wall, the inner lining, apex, belt, shoulder, profile belts, layer, frame, fittings flanges and/or solid tire.

Rubber mixture according to the invention is used not only in various regions of the tire, but also for hoses, air springs, shock absorbers, rubber cushion, drive belts and other types of belts.

The rubber mixture is prepared according to traditional for the rubber industry the way through the initial production of the original mixture in one or more stages of mixing all components except the vulcanization system (sulfur and compounds that affect the vulcanization). The final mixture is made by adding the vulcanization system at the final stage of mixing. The final mixture is then processed through, for example, extrusion and converted to the appropriate form.

For use in pneumatic tires, the mixture is preferably converted to form the tire tread and applied in accordance with the known method in the course of manufacturing unvulcanized tires. Od the ako is also possible, to the tyre tread, which could be divided into two parts, has been reeling in the form of a narrow strip of rubber compound on the unvulcanized tire. A method of manufacturing a rubber compound according to the invention for use as a frame of the mixture in the tires the same way described earlier for the tire tread. The difference lies in the method of forming after extrusion procedure. The obtained shaped rubber mixtures according to the invention for one or more different frame of mixtures then are used to construct the unvulcanized tire. For use of the rubber mixtures according to the invention in drive belts and tapes, in particular, conveyor belts, extruded mixture is converted to the appropriate form and, during this process or after it, is often equipped with a valve, for example, synthetic fibers or steel cords. In most cases, the result is a multilayer structure comprising a single and/or multiple layers of rubber, one and/or multiple layers of identical and/or different valves and one and/or more additional layers of the same and/or different rubber compound.

Hereinafter the invention will be also explained with the use of the comparative examples and examples with features of the invention that are mapped in tables 1-11. Matched with the existing table is divided into, at least three parts. The first part describes the appropriate composition of the mixture, while the second part describes the sources of sulfur in more detail, and the third part describes the results of the test samples. Each example with the prefix "C" is the comparative example, while the examples with prefix "And" are examples having features of the invention. Tables 1 and 2 contain the results of the test tires in additional, fourth part.

All examples of mixtures are mixed in the “OOC” BANBURY mixer®(Farrell Corp.) with the volume of the chamber 158 inch3(2600 cm3in three-stage process.

All mixtures were commonly used for obrazovaniya test samples after 20 min vulcanization at 160°C, and these test samples was used to determine the properties that are common for the rubber industry, each material.

Methods of tests for the above tests on the test samples, were as follows:

- hardness shore a at room temperature and 70°C DIN 53 505

- ball rebound resilience at room temperature and 70°C according to DIN 53 512

the tensile strength at room temperature according to DIN 53 504

- elongation at break at room temperature according to DIN 53 504

modules with static udleneniye 50%, 100% and 300% at room temperature according to DIN 53 504

the degree of abrasion according to DIN 53 516

the relative degree of crosslinking at 10%, 40%, 90% and 95% by betrothing of vulcameter (MDR = rheometer with a moving disk) according to DIN 53 529

the Mooney viscosity according to ASTM D1646.

The degree of abrasion is installed in a laboratory scale in relative (%) or absolute (mm3units and represents the weight loss during the test. Therefore, the smaller the degree of mean improved behavior with respect to abrasion.

Using the protector, made from appropriate mixtures were also made pneumatic tyres of size 205/55 R16, and tires were used in the testing of braking on wet asphalt (low μ) and the concrete (high μ), as well as aquaplaning and rolling resistance. Was also measured abrasion. The properties of the tire, using a mixture of C1 and C2, were equal to 100, and values greater than 100 indicate an improvement of the corresponding properties for the mixtures according to the invention.

Comparative examples and examples with features of the invention, consider the different mixes depending on the class of silane and appropriate use for tires.

Quantitative composition:

- 30-100 weight parts per 100 weight parts of rubber unsaturated rubbers is a (for example, for protectors passenger cars: SBR/BR 0-50 weight parts per 100 weight parts of rubber; NR 0-50 weight parts per 100 weight parts of rubber, preferably from 0 to 30 weight parts per 100 weight parts of rubber, particularly preferably 0 to 20 weight parts per 100 weight parts of rubber);

- can be used any additional filler without IT-groups (e.g., 0-100 weight parts per 100 weight parts of rubber, preferably 0-80 weight parts per 100 weight parts of rubber, particularly preferably 0 to 5 weight parts per 100 weight parts of rubber carbon black);

- 0-120 weight parts per 100 weight parts of rubber plasticizer, preferably 0 to 90 weight parts per 100 weight parts of rubber, particularly preferably 0-80 weight parts per 100 weight parts of rubber;

- 0-60 weight parts per 100 weight parts of rubber additional additives, preferably 0-40 weight parts per 100 weight parts of rubber (antiozonant waxes, resins, ZnO, antioxidants and so on).

Additional features:

- rubber mixture also includes sulfenamide accelerator, preferably CBS or TBBS, more preferably the molar ratio of sulfur donor to sulfenamide accelerator of 0.35 to 0.6, preferably 0,45-0,55;

donor sulfur are turangalila or thiophosphate, preferably TBzTD or SDT, or DipDis, or ZDT;

- silanes are TESPT or TESPD, such as Si69®and Si75®sold by Evonik Industries AG, or mercaptoethane, which can be locked or unlocked, as, for example, Si363®(Evonik Industries AG) or silane NXT-type silane NXT-Z-type silane NXT-type with a low content of volatile organic compounds (all of them are available for sale, manufacturer - Momentive Performance Materials Inc.) or silanes with similarbank skeleton;

- at least one filler, which preferably contains Oh-groups on the surface of the filler, such as silica, other metal oxides, or microgels, such Nanoprene®where the filler is particularly preferably contains 1 to 6 Oh-groups per nm2;

unsaturated elastomers, including SBR, BR, NR, IR, SIR, SIBR, IBR, EPDM, or a mixture thereof;

the plasticizer, which includes mineral oils, vegetable oils, esters, low molecular weight polymers or mixtures thereof.

Examples of automotive protectors:

Examples I1, I2, I4-I, 16 and I-I:

the sulfur concentration: 0.05 to 0.075 mol per 100 weight parts of rubber, and

free sulphur: from 0 to 10%, preferably from 0 to 2%, and

the sulfur donor: 5 to 13%, preferably from 7 to 13%, and

the silane class 1: 75 to 90%, and

the silica preferably from 45 to 150 weight parts per 100 weight parts of rubber.

Examples I3, I-È5, 17, I-I:

the concentration of sulfur: from 0.035 to 0.07 mol per 100 weight parts of rubber, and

free sulphur: from 20 to 50%, preferably from 24 to 45%, and

the sulfur donor: from 5 to 20%, preferably up to 18%, and

the silane class 2: from 50 to 70%, and

the silica preferably from 45 to 150 weight parts per 100 weight parts of rubber.

Examples I and 19:

the sulfur concentration from 0.025 to 0.05 mol per 100 weight parts of rubber, and

free sulphur: from 20 to 60%, preferably from 25 to 50%, and

the sulfur donor: from 10 to 30%, preferably from 15 to 28%, and

the silane class 3: from 25 to 70%, and

the silica preferably from 45 to 150 weight parts per 100 weight parts of rubber.

Examples for use in the sidewalls of tires:

Examples I-I:

the sulfur concentration from 0.025 to 0.05 mol per 100 weight parts of rubber, and

free sulphur: from 0 to 55%, and

the sulfur donor: from 8 to 20%, and

the silane class 1: from 40 to 95%, and

silica is preferably from 10 to 50 weight parts per 100 weight parts of rubber.

Examples for use in protectors trucks:

Examples I-I:

the sulfur concentration from 0.025 to 0.05 mol per 100 weight parts of rubber, and

free sulphur: from 0 to 55%, and

the sulfur donor: from 8 to 15%, and

the silane class 1: from 40 to 95%, and

the silica preferably from 20 to 70 weight parts per 100 weight parts of rubber.

87,2
TABLE 1
CompositionC11
NRweight parts per 100 weight parts of rubber20,00020,000
BR35,00035,000
SSBR45,00045,000
Silica (VN3)85,00085,000
The plasticizer45,00045,000
6PPD2,0002,000
TMQ2,0002,000
Antiozonant wax2,0002,000
ZnO2,5002,500
Stearic acid2,5002,500
The silane TESPT6,7546,754
TBZTDweight parts per 100 weight parts of rubber-2,000
DPG2,000-
TBBS-1,810
CBS2,000-
Sulfur1,500-
The source of sulfurC11
The total sulfur contentmmol/100 weight. parts rubberof 97.8to 58.1
Free sulfur%48,30,0
Donor sulfur%0,012,8
The silane%51,7
Physical propertiesC11
T-010Min2,852,09
T-040Min6,023,94
T-090Min13,659,78
T-095Min18,0712,70
Δ twisting momentdNm14,4916,22
The Mooney viscosity at 100°CUnit Muni43to 43.1
Hardness at room temperatureShore a5658
Hardness at 70°CShore a5356
Module at 50%MPa 0,891,03
The modulus at 100%MPa1,541,91
Modulus at 300%MPaof 5.847,73
The tensile strengthMPa14,914,5
Elongation at break%640500
Rebound at room temperature%3743
Rebound at 70°C%5155
Δ Rebound%1413
Abrasionmm385,5245,97
Test tiresThe critical difference, %C11
ABS braking on wet roads (high μ)110099,5
Braking on dry road1100100,7
Handling on dry road0,5100102,4
Aquaplaning3,7100100
Rolling resistance3,12100102,2
Wear5100137

/tr>
TABLE 2
The class of silaneC2S2S3S4C3
class 1class 2class 1
Composition
NRweight parts per 100 weight parts of rubber30,0030,0030,0030,0030,00
SSBR70,0070,0070,0070,0070,00
Carbon black N 3395,005,005,005,005,00
Silica (VN3)of 86.00of 86.00of 86.00of 86.00of 86.00
The plasticizer25,0025,0025,0025,0025,00
Antioxidant4,004,004,004,004,00
Antiozonant wax2,502,502,502,502,50
Zinc oxide2,002,002,002,002,00
Stearic acid1,001,001,001,001,00
Esters of fatty acids and zinc soap4,004,004,004,004,00
The silane TESPT-to 8.34---
the Ilan TESPD 8,00-8,00-8,00
The silane branched hydrocarbon skeleton7,70
TBZTDweight parts per 100 weight parts of rubber-1,751,751,75-
DPG2,00---2,00
TBBS-1,581,581,58-
CBS 2,00---4,00
Sulfur1,700,030,420,030,85
Physical propertiesC2S2S3S4C3
T-010Min2,751,401,181,460,68
T-040Min5,424,354,324,323,29
T-090Minof 14.76(Jn 19 : 2620,2019,2918,46
T-095 Minto 19.7423,5224,3623,5923,22
Δ twisting momentdNm20,7321,0118,9220,4418,03
The Mooney viscosity at 100°CUnit Muni5674627654
Hardness at room temperatureShore A6970687071
Hardness at 70°CShore A6262576161
Module at 50%MPa 1,401,451,181,311,32
The modulus at 100%MPa2,482,581,822,222,27
Modulus at 300%MPaaccounted for 10.3911,447,189,829,59
The tensile strengthMPa15,314,113,014,316,5
Elongation at break%441382501431501
Rebound at room temperature%24 26232624
Rebound at 70°C%4749424744
The source of sulfurC2S2S3S4C3
The total sulfur contentmmol/100 weight parts of rubber86,570,152,970,159,9
Free sulfur%61,11,424,61,444,0
Donor sulfur%0,09,312,19,3
The silane%38,989,463,389,456,0
The test busC2S2S3S4C3
ABS braking on wet asphalt with low μthe critical difference of 1.0%10099,7105,1102,9to 103.8
Rating manageabilityLess No. is the best45312
ABS braking on dry roadthe critical difference of 1.6%10098,899,699,7100,3
The resisting film to prevent the pressure rolling (90 km/h) the critical difference 3,03%100103,5of 101.5104,095,0
Wear (ABC), frontT (average) = 17°C100127140140112
Wear (ABC), rearT (average) = 17°C100150170176122

TABLE 3
CompositionC2I8È56I
NRweight parts per 100 weight parts of rubber30,0030,0030,0030,0030,00
SSBR70,0070,0070,0070,0070,00
Carbon black N 3395,005,005,005,005,00
Silica (VN3)of 86.00of 86.00of 86.00of 86.00of 86.00
The plasticizer25,0025,0025,0025,0025,00
Antioxidants4,004,004,004,004,00
Antiozonant wax2,502,502,502,502,50
Zinc oxide 2,002,002,002,002,00
Stearic acid1,001,001,001,001,00
Esters of fatty acids and zinc soap4,004,004,004,004,00
The silane TESPT-to 8.347,807,25of 6.71
The silane TESPD8,00----
TBZTDweight parts to 10 weight parts of rubber -2,002,002,002,00
DPG2,00----
TBBS-1,811,811,811,81
CBS2,00----
Sulfur1,70-0,060,130,19
The source of sulfurC2I8È56I
The total sulfur contentmmol/100 weight parts of rubber86,570,1 67,965,963,7
Free sulfur%61,10,02,86,29,4
Donor sulfur%0,010,610,911,3the 11.6
The silane%38,989,486,382,579,0
Physical propertiesC2I8È56I
T-010Min2,751,401,391,391,42
T-040Min 5,424,354,163,973,83
T-090Minof 14.76(Jn 19 : 26(Jn 19 : 2618,7318,32
T-095Minto 19.7423,5223,5123,0522.84 to
Δ twisting momentdNm20,7321,0120,5120,2620,19
The Mooney viscosity at 100°Cunit Muni44,450,952,955,3of 57.5
Hardness at room temperatureShore a70 72727271
Hardness at 70°CShore a6467686765
Module at 50%MPa1,401,551,531,521,50
The modulus at 100%MPa2,402,732,662,65to 2.57
Modulus at 300%MPaof 10.2512,1911,9411,77are 11.62
The tensile strengthMPa14,7a 12.713,7 15,113,9
Elongation at break%439338365399377
Rebound at room temperature%2830313031
Rebound at 70°C%4346464746
Abrasion%100,0094,7891,8995,8697,31

30
TABLE 4
CompositionC2I810I
TSRweight parts per 100 weight parts of rubber30,0030,0030,0030,0030,00
SSBR70,0070,0070,0070,0070,00
Carbon black N 3395,005,005,005,005,00
Silica (VN3)of 86.00of 86.00of 86.00of 86.00of 86.00
The plasticizer25,00 25,0025,0025,0025,00
Antioxidants4,004,004,004,004,00
Antiozonant wax2,502,502,502,502,50
Zinc oxide2,002,002,002,002,00
Stearic acid1,001,001,001,001,00
Esters of fatty acids and zinc soap4,00 4,004,004,004,00
The silane TESPT-to 8.34to 8.34to 8.34-
The silane TESPD8,00----
The silane branched hydrocarbon skeleton----7,70
TBZTDthe weight is t on 100 weight parts of rubber -2,001,451,751,75
DPG2,00----
TBBS-1,811,311,581,58
CBS2,00----
Sulfur1,70-0,070,030,03
The source of sulfurC2 I8I10I
The total sulfur contentmmol/100 weight parts of rubber86,570,1to 70.270,170,1
Free sulfur%61,10,03,11,41,4
Donor sulfur%0,010,67,79,19,1
The silane%38,989,489,289,489,4
Physical properties C2I8I10I
T-010min2,751,401,181,460,68
T-040min5,424,354,324,323,29
T-090minof 14.76(Jn 19 : 2620,2019,2918,46
T-095minto 19.7423,5224,3623,5923,22
Δ twisting moment dNm20,7321,0118,9220,4418,03
The Mooney viscosity at 100°Cunit Muni44,450,952,95153,8
Hardness at room temperatureShore a7072707071
Hardness at 70°CShore a6467646565
Module at 50%MPa1,401,551,391,47 1,43
The modulus at 100%MPa2,402,732,302,532,36
Modulus at 300%MPaof 10.2512,1910,0111,2210,56
The tensile strengthMPa14,7312,6713,5112,3414,03
Elongation at break%439338412352407
Rebound at room temperature%28303029
Rebound at 70°C%4346464746
Abrasionmm3100,0094,8980,2989,3082,86

tr>
TABLE 5
CompositionC4II1415
NRweight parts per 100 weight parts of rubber30,0030,0030,0030,0030,00
SSBR70,0070,0070,0070,0070,00
Carbon black N 3395,005,005,005,005,00
Silica (VN3)of 86.00of 86.00of 86.00of 86.00of 86.00
The plasticizer25,0025,0025,0025,0025,00
Antioxidant5,25,25,25,25,2
Antiozonant wax2,02,0 2,02,02,0
ZnO2,02,02,02,02,0
Stearic acid1,01,01,01,01,0
Esters of fatty acids4,04,04,04,04,0
The silane TESPD8,08,08,08,08,0
Sulfur weight parts per 100 weight parts of rubber1,70,850,850,420,42
TBzTD-1,751,752,002,75
TBBS-1,581,581,811,58
CBS2,0----
DPG2,0-2,52,52,5
The source of sulfurC4IIthe 14 15
The total sulfur contentmmol/100 weight parts of rubber86,5to 66.3to 66.353,856,6
Free sulfur%61,440,040,024,423,2
Donor sulfur%0the 9.7the 9.713,717,9
The silane%a 38.550,350,361,9of 58.9
Physical propertiesC4II1415
T-010min1,982,77to 2.292,482,15
T-040min3,214,553,354,283,83
T-090min8,4011,946,848,668,10
T-095min11,4316,439,5411,0510,50
Δ twisting momentdNm19,27a 21.7520,0819,1920,51
The Mooney viscosity at 100°Cunit Muni of 66.0065,0054,8058,2058,50
Hardness at room temperatureShore a67,8070,4070,6069,9070,75
Hardness at 70°CShore a64,6067,4068,0566,4568,05
Module at 50%MPa1,401,601,601,501,61
The modulus at 100%MPa2,482,822,932,642,92
Modulus at 300%MPaaccounted for 10.39 10,6111,3610,2611,06
The tensile strengthMPa15,3013,2012,5513,5513,74
Elongation at break%441,00388,38353,53405,28388,15
Rebound at room temperature%24,20of 24.9025,9025,70is 25.50
Rebound at 70°C%47,1049,0049,9048,3048,50
Abrasionmm3125,0095,00 to 99.0088,00of 86.00

td align="center"> dNm
TABLE 6
CompositionC516
TSRweight parts per 100 weight parts of rubber10,0010,00
BR35,0035,00
SSBR, oil-filled75,6275,62
Carbon black N 33912,0012,00
Silica (VN3)85,0085,00
The plasticizer11,3711,37
6PPD2,002,00
TMQ2,002,00
Antiozonant wax2,502,50
ZnO2,502,50
Stearic acid1,001,00
Esters of fatty acids and zinc soap4,004,00
The silane TESPD6,00-
The silane branched hydrocarbon skeleton-6,20
MBTweight parts per 100 weight parts of rubber0,10-
TBZTD-0,20
DPG2,002,00
TBBS-2,00
CBS2,00-
Sulfur2,201,39
The source of sulfurC516
The total sulfur contentmmol/100 weight parts of rubber9455,6
Free sulfur%73,146,2
Donor sulfur%0,00,8
The silane%26,953,0
Physical propertiesC516
T-010min2,1of 1.34
T-040min4,254.09 to
T-090min11,7211,06
T-095min16,7415,72
Δ twisting moment18,5618,55
The Mooney viscosity at 100°Cunit Muni68,772,1
Hardness at room temperatureShore a6969
Hardness at 70°CShore a6667
Module at 50%MPa1,451,47
The modulus at 100%MPa2,452,52
Modulus at 300%MPato 10.0911,42
The tensile strengthMPa15,115,4
Elongation at break%454412
Rebound at room temperature%32
Rebound at 70°C%4447
Abrasion%10045

TABLE 7
CompositionC617C7I19
NRweight parts per 100 weight parts of rubber30,00030,0005,0005,0005,000
BR--15,00015,00015,000
SSBR, functionalized70,00070,00080,00080,00080,000
Soot 555,0005,0005,000
Silica HD60,00060,00075,00075,00075,000
Plasticizer, resin121210,00010,00010,000
Sylvares TR B115®--5,0005,0005,000
Antioxidants5,2005,2005,2005,2005,200
Antiozonant wax2,0002,0002,0002,0002,000
ZnO2,0002,0002,0002,0002,000
Stearic acid1,0001,0001,0001,0001,000
Esters of fatty acids and zinc soap--6,0006,0006,000
The silane NXT with low content of volatile organic compounds7,3207,320---
Silane SI 363®(Class 3)--9,0009,0009,000
MBTweight parts per 100 weight parts of rubber--1,0000,500 1,000
TBZTD-2,0000,2502,0002,000
DPG1,6001,600-2,1002,100
TBBS-1,8103,5002,7702,770
CBS2,000----
Sulfur1,7000,4201,7000,4400,440
The source of sulfurC617C7I19
The total sulfur contentmmol/100 weight parts of rubber73,3 40,663,230,230,2
Free sulfur%72,432,384,145,545,5
Donor sulfur%018,11,524,324,3
The silane%27,549,614.4V30,130,1
Physical propertiesC617C7I19
Mooney (ML1 + 4) at 100°Cunit Muni59,161,780,184,585,9
T-010 min1,542,2to 3.732,241,73
T-040min1,973,194,843,612,9
T-090mina 3.87of 5.927,6the 7.857,03
T-095min5,077,028,9of 9.21at 8.36
Δ twisting momentdNm15,39br12.6216,6814,214, 48mm
Hardness shore a at room temperatureshore a62,860,165 61,763,15
Hardness shore a at 70°Cshore a61,2to 58.162,559,6560,35
Ball rebound resilience at room temperature%3433,52732,331,2
Ball rebound resilience at 70°C%62,959,164,363,162,8
The tensile strengthMPa13,47616,35415,47917,62316,254
Elongation at break%333,786450,547318,988372,159341233
Voltage (module) -50MPa1,4461,1681,5641,3311,406
Voltage (module) -100MPa2,8082,1123,1952,6612,796
Voltage (module) -300MPa13,21910,3315,99514,92415,128
Abrasionmm391521036670

TABLE 8
CompositionC8II III25I
TSRweight parts per 100 weight parts of rubber20,00020,00020,00020,00020,00020,00020,00020,000
SR44,00044,00044,00044,00044,00044,00044,00044,000
SSBR36,00036,00036,00036,00036,00036,00036,000 36,000
Silica (ZEOSIL 1165 MP)95,00095,00095,00095,00095,00095,00095,00095,000
The plasticizer45,00045,00045,00045,00045,00045,00045,00045,000
6PPD2,0002,0002,0002,0002,0002,0002,0002,000
TMQ2,0002,0002,000 2,0002,0002,0002,0002,000
Antiozonant wax2,0002,0002,0002,0002,0002,0002,0002,000
ZnO2,5002,5002,5002,5002,5002,5002,5002,500
Stearic acid2,5002,5002,5002,5002,5002,5002,5002,500
The silane TESPT-6,6006,6006,6006,600---
The silane TESPD8,080----5,9205,9205,920
TBZTD-1,750------
DPG2,000----- --
TBBS-1,5801,5801,5801,5801,5801,5801,580
CBS1,600-------
Rhenogran SDT 50®--4,710--4,710--
DIPDIS-- --1,370--1,370
Sulfur2,000----0,6600,6600,660
Rhenocure ZDT/s®---3,550--3,550-
The source of sulfurC8IIIII 25I
The total sulfur contentmmol/100 weight parts of rubber96,256,156,156,156,151,1751,751,7
Free sulfur%650,00,00039,839,839,8
Donor sulfur%011,511,511,511,512,412,4 12,4
The silane%3549,688,588,588,547,747,747,7
Physical propertiesC8IIIII25I
Mooney (ML1 + 4)unit Muni44,958,76859,559,396,1of 60.568,2
T-010 min2,370,630,510,630,51,630,620,62
T-040min6,52,84was 2.762,622,682,374,143,48
T-095min17,614,6715,7218,312,83the 7.6514,1910,27
Δ twisting momentdNm 17,49one-21.3222,5621,02rate 18.891921,1319,75

Hardness shore A at room temperatureShore a61,2563,864,263,662,5567,4564,364,1
Hardness shore a at 70°CShore a57,35of 60.561,2559,3558,764,260,8560,75
Rebound at room temperature%3538,938,937,236,839,5 3836,5
Rebound at 70°C%46,247,846,744,745,34746,344,1
The tensile strengthMPa13,70512,13314,51713,58413,60915,36415,08713,943
Elongation at break%698,534486,684556,151559,482581,13624,856585,484602,256
Voltage (module) -50MPa0,931,0541,0981,0511,0161,1941,12 1,103
Voltage (module) -100MPa1,4461,6681,721near 1.6151,5791,7831,7581,663
Voltage (module) -300MPa4,9246,7346,8256,2856,056,2546,6085,877
The energy density of gapJ/cm338,79422,64531,51329,65731,08338,24134,48432,944
Abrasionmm374,4729,5330,829,1132,9140,7730,92,61

TABLE 9
CompositionC9IIC10II
TSRweight parts per 100 weight parts of rubber50,00050,00050,00050,00050,00050,000
BR50,00050,00050,00050,00050,00050,000
Carbon black N 33915,00013,00013,00045,00045,00045,000
Silica (VN3)30,00030,00030,000---
Plastificator4,0004,0004,0004,0004,0004,000
Resin6,0006,0006,0006,0006,0006,000
Antioxidant4,0004,0004,0004,0004,0004,000
Antiozonant wax2,0002,0002,0002,0002,0002,000
ZnO3,0003,0003,0003,0003,0003,000
Stearic acid2,0002,0002,0002,0002,000 2,000
50% TESPT on saj4,0004,0004,000-6,8426,842
Nanoprene B PM0OH VP®-----15,000
Nanoprene B M15OH VP®----15,000-
TBZTDweight parts per 100 weight parts of rubber-1,3501,100-1,6321,632
DPG0,500- ----
TBBS-1,2201,000
CBS1,300--0,7000,7000,700
Sulfur1,3000,4300,4601,400--

The source of sulfurC9IIC10II
The total sulfur contentmmol/100 weight parts of rubber55,6the 33.433,543,831,731,7
Free sulfur%73,040,443,20,00,00,0
TBzTD%0,014,912,20,019,019,0
The silane%27,044,744,7100,081,081,0

Physical propertiesC9IIC10II
Mooney (ML1 + 4)unit Muni53,964,966,450,148,946
T-010 min2,60732,272,243,4231,52131,5598
T-040min4,68233,093,174,6743,0523,0893
T-095min8,276311,1612,019,070223,626323,5252
Δ twisting momentdNm10,1411,4610,279,6311,6411,33
Hardness at room temperatureshore a50,2554,251,952,757,5557,45
Hardness at 70°Cshore a 47,951,849,2548,3554,554,65
Rebound at room temperature%to 49.95552,745,62547,7543,405
Rebound at 70°C%55,3563,159,251,6959,959,66
The tensile strengthMPa16,903312,98412,99618,656711,813,5567
Elongation at break%740,4502,885553,796696,4333350,1333398,4333
Voltage (module) -50MPa 0,72670,9020,8170,821,09331,1067
Voltage (module) -100MPa1,07674,4581,2731,25331,931,9667
Voltage (module) -300MPa4,29676,5125,476,1210,676710,1733
Abrasion49,5734,9537,3548,0128,9922,4

TABLE 10
CompositionC11IIII
NR weight parts per 100 weight parts of rubber100,000100,000100,000100,000100,000
Carbon black N 1215,0005,0005,0005,0005,000
Silica ZEOSIL 1165 MP50,00050,00050,00050,00050,000
Antiozonant wax2,5002,5002,5002,5002,500
The silane TESPT5,0004,7274,3434,3433,959
The silane TESPD-----
Antioxidant2,5002,52,5 2,52,5
ZnO3,0003,0003,0003,0003,000
Stearic acid2,0002,0002,0002,0002,000
Technological auxiliary additive4,0004,0004,0004,0004,000
TBZTDweight parts per 100 weight parts of rubber-2,0672,0672,0672,067
DPG1,0001,0001,000-1,00
TBBS1,9001,0001,9001,9001,900
Sulfur1,800-0,0790,0790,158
The source of sulfurC11IIII
The total sulfur contentmmol/100 weight parts of rubber93,8to 43.142,742,742,3
Free sulfur%60,00,05,85,811,7
TBzTD%0,017,617,717,817,9
The silane%4082,476,476,470,4

Physical propertiesC11IIII
Mooney (ML1+4)unit Muni53,451,851,252,550,4

T-010min1,37481,53581,55171,81981,5935
T-040min2,41633,48343,22773,77023,0482
T-095min6,1588 15,013513,701717,765512,6697
Δ twisting momentdNm21,8917,8317,816,9917,74
Hardness shore a at room temperatureShore A67,3563,763,1561,563,3
Hardness shore a at 70°CShore a67,161,160,3559,1560,75
Ball rebound resilience at room temperature%56,52552,4251,8752,151,825
Ball rebound resilience at 70°C%68,666,37566,91566,37 65,88
The tensile strengthMPa1,791,421,48671,42331,37
Elongation at break%3,60332,75672,90672,782,6333
Tension (elongation) -50MPathe value of 16,8116,196717,123316,2115,9233
Tension (elongation) -100MPa25,483323,1823,093323,396724,03
Tension (elongation) -300MPa475,0333436,8667416,8667439,9667454,2
Abrasionmm3110 58706469

TABLE 11
CompositionC11IIII
NRweight parts per 100 weight parts of rubber100,000100,000100,000100,000100,000
Carbon black N 1215,0005,0005,0005,0005,000
Silica ZEOSIL 1165 MP50,00050,00050,00050,00050,000
Antiozonant wax2,5002,5002,5002,5002,500
The silane TESPT5,000----
The silane TESPD-8,4827,7927,7927,103
The antioxidant f2,5002,5002,5002,5002,500
ZnO3,0003,0003,0003,0003,000
Stearic acid2,0002,0002,0002,0002,000
Technological auxiliary additive4,0004,0004,0004,0004,000
TBZTDweight parts per 100 weight parts of rubber-2,0672,0672,0672,067
DPG1,0001,0001,000-1,000
TBBS1,9001,9001,9001,9001,900
Sulfur1,800-0,0790,0790,158
The source of sulfurC11IIII
The total sulfur contentmmol/100 weight parts of rubber93,842,942,842,5 42,1
Free sulfur%60,00,05,8005,80011,700
TBzTD%0,017,717,90017,90018,000
The silane%4082,376,376,3to 70.2
Physical propertiesC11IIII
Mooney (ML1 + 4)unit Muni53,4of 45.746,549,2to 47.2
T-005min1,37481,74251,94272,6123 1,997
T-040min2,41636,35675,18576,60934,389
T-095min6,158823,190821,862325,252720,7663
Δ twisting momentdNm21,8916,7518,0215,8818,74
Hardness shore a at room temperatureShore A67,3563,964,5563,466,6
Hardness shore a at 70°CShore a67,158,0561,450,362,55
Ball rebound resilience at room temperature%5,525 39,9242,75544,75544,275
Ball rebound resilience at 70°C%68,651,00555,1659,66557,66
The tensile strengthMPa1,791,30331,431,41,52
Elongation at break%3,60332,13332,5033to 2.572,79
Tension (elongation) -50MPathe value of 16,8111,663313,726714,733315,1733
Tension (elongation) -100MPa25,483321,543321,5723,26671,8433
Tension (elongation) -300MPa475,0333513,3667416,3667467,5333402,5333
Abrasionmm311091806764

More information about the above table:

Silane having branched hydrocarbon skeleton used in the examples is always the same and is described in example 2 of the patent document U.S. No. 11/617663.

Table 1: mixture for passenger car tyres, comprises a test tire.

Table 2: mix for passenger car tyres, comprises a test tire, a comparison of silane 3 types and comparison with traditionally used by vulcanization system (example C3, a low content of sulfur in the absence of a sulfur donor).

Table 3: mixture for a passenger car tyre, varying dosages of sulfur.

Table 4: mixture for a passenger car tyre, varying dosages of sulfur and type of silane.

Table 5: mix for passenger car tyre, varying dosages of sulfur and sulfur donor for the silane class 2".

Table 6: MES for passenger car tyres, silane having branched hydrocarbon skeleton in mixtures of different composition.

Table 7: mix for passenger car tyres, the use of silane class 2 and 3.

Table 8: the mix for passenger car tyres, used as a sulfur donor in various dithiophosphates.

Table 9: the mixture to the side walls, the use of silica or containing Oh-groups microgel as filler.

Table 10: the mixture for truck tyres with two types of silane.

Table 11: the mixture for truck tyres with two types of silane.

1. The rubber mixture that includes:
- from 30 to 100 parts per 100 parts of rubber, of at least one diene rubber;
- from 20 to 200 parts per 100 parts of rubber, of at least one filler;
- from 0 to 200 parts per 100 parts of rubber additional additives;
- the sulfur-containing vulcanization system comprising elemental sulfur, sulfur donor and the silane concentration of sulfur due to these ingredients, between 0.025 and 0.08 mol per 100 parts of rubber, where elemental sulfur is from 0 to 70%, the sulfur donor is from 5 to 30%, and the silane is from 20 to 95%; and
the 0.1 - 10 parts per 100 parts of rubber, of at least one vulcanization accelerator.

2. Rubber mixture according to claim 1, characterized in that the silane has a ratio of S:Si more of 1.6, and the number of atoms of Si pain is e 1, and the ratio of molecular weight on each Si atom is less than 390 g/mol.

3. Rubber mixture according to claim 1, characterized in that the silane has a ratio of S:Si less of 1.6, and the number of Si atoms is greater than or equal to 1, and its relation to molecular weight on each Si atom is less than 390 g/mol.

4. Rubber mixture according to claim 1, characterized in that the silane has a ratio of S:Si that is not restricted, and the absolute number of atoms of Si greater than or equal to 1, and the ratio of molecular weight on each Si atom more than 390 g/mol.

5. Rubber mixture according to claim 1, characterized in that the silane with a ratio of S:Si more than 1.6 and the number of Si atoms is greater than 1, and the ratio of molecular weight on each Si atom is less than 390 g/mol for applications in passenger car tyres, the sulfur concentration is from 0.05 to 0.075 mol per 100 parts of rubber, where the fraction of free sulfur is from 0 to 10%, the proportion of sulfur donor is from 5 to 13%, and the proportion of silane is from 75 to 90%, and the silica is present as a filler in an amount of from 45 to 150 parts per 100 parts of rubber.

6. Rubber mixture according to claim 1, characterized in that the silane with a ratio of S:Si is less than 1.6 and the number of Si atoms greater than or equal to 1, and the ratio of molecular weight on each Si atom is less than 390 g/mol for applications in passenger car tyres, the sulfur concentration is from 0.035 to 0.07 mol per 100 parts of rubber, where the share of freedom is Noah sulfur ranges from 20 to 50%, the proportion of sulfur donor is from 5 to 20%, and the proportion of silane ranges from 50 to 70%, and the silica is present as a filler in an amount of from 45 to 150 parts per 100 parts of rubber.

7. Rubber mixture according to claim 1, characterized in that the silane with no limit to the ratio of S:Si and the absolute number of atoms of Si greater than or equal to 1 and with respect to molecular weight on each Si atom more than 390 g/mol for applications in passenger car tyres, the sulfur concentration is from 0.025 to 0.05 mol per 100 parts of rubber, where the fraction of free sulfur is from 20 to 60%, the proportion of sulfur donor is from 10 to 30%, and the proportion of silane is from 25 to 70%, and the silica is present as a filler in an amount of from 45 to 150 parts per 100 parts of rubber.

8. Rubber mixture according to claim 1, characterized in that the silane with a ratio of S:Si more than 1.6 and the number of Si atoms is greater than 1, and the ratio of molecular weight on each Si atom is less than 390 g/mol for applications in the sidewalls of tires concentration of 1 sulfur is from 0.025 to 0.05 mol per 100 parts of rubber, where the fraction of free sulfur is from 0 to 55%, the proportion of sulfur donor is from 8 to 20%, and the proportion of silane is from 40 to 95%, and the silica is present as a filler in an amount of from 45 to 150 parts per 100 parts of rubber.

9. Rubber mixture according to claim 1, characterized in that the silane with respect to molecular weight is and every atom of Si is less than 390 g/mol for applications in truck tyres, the sulfur concentration is from 0.025 to 0.05 mol per 100 parts of rubber, where the fraction of free sulfur is from 0 to 55%, and the proportion of sulfur donor is from 8 to 15%, and the proportion of silane is from 40 to 95%, and the silica is present as a filler in an amount of from 45 to 150 parts per 100 parts of rubber.

10. Rubber mixture according to claim 1, characterized in that it contains sulfenamide accelerator as an accelerator of vulcanization and turangalila or thiophosphate as a sulfur donor, and as a silane TESPT or TESPD, or mercaptoethane, or silanes branched hydrocarbon skeleton, where the molar ratio of the sulfur donor and sulfenamide accelerator is from 0.35 to 0.6.

11. Rubber mixture according to claim 1, characterized in that at least one diene rubber selected from a group comprising natural polyisoprene, and/or synthetic polyisoprene and/or polybutadiene, and/or a copolymer of styrene and butadiene, and/or polymerized in a solution of a copolymer of styrene and butadiene, and/or polymerized in emulsion copolymer of styrene and butadiene, and/or a ternary copolymer of styrene, isoprene and butadiene, and/or butyl rubber, and/or halogenation rubber and/or ethylene-propylene-diene rubber, and/or chloroprene rubber.

12. Rubber mixture according to claim 1, characterized in that the amount of a vulcanization accelerator is from 1 to 6 ve is C 100 parts of rubber.

13. Rubber mixture according to claim 1, wherein the vulcanization accelerator is selected from the group comprising sulfenamide accelerators and Muramvya accelerators that are not donors of sulphur.

14. Rubber mixture according to item 13, wherein the vulcanization accelerator is N-cyclohexyl-2-benzothiazolesulfenamide or N-tert-butyl-2-benzothiazolesulfenamide.

15. Rubber mixture according to claim 1, characterized in that the sulfur donor is selected from the group including turangalila and thiophosphate.

16. Rubber mixture according to item 15, wherein the sulfur donor is tetrabenzylthiuram.

17. Rubber mixture according to item 15, wherein the sulfur donor is bis(0,0-2-ethylhexyl-thiophosphate) polysulfide (SDT).

18. Rubber mixture according to claim 1, characterized in that it contains no sulfur, and it is not added elemental sulfur.

19. Rubber mixture according to claim 1, characterized in that the total number of additional additives is from 10 to 200 parts per 100 parts of rubber.

20. The use of the rubber mixtures according to claim 1 for the manufacture of tires.

21. The use of the rubber mixtures according to claim 20 for the manufacture of the tread or frame mix bus.

22. The use of the rubber mixtures according to item 21 for the manufacture of frame mix bus, including the sidewall, inner sheathing, apex, belt, shoulder, profile brè the EPA, layer, the carcass reinforcement of the sides, other reinforcing insert and/or solid tire.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to rubber industry and can be used in making wear-resistant rubber articles for construction purposes, operating in conditions of intense wear, low temperatures and aggressive media. The oil-and-petrol resistant rubber mixture contains butadiene-nitrile rubber BNKS-40AMN, isoprene rubber SKI-3, methyl styrene rubber SKMS-30 ARKM-15, sulphur, sulphenamide Ts, stearine, technical carbon P324, zinc oxide, regenerate RShT, thiuram D, kaolin, petroleum bitumen, naphtham-2, oil I-8A, N-nitrosodiphenylamine, and process additives - dispractol KS and a mixture of diphenyl carbonate and dimethyl carbonate resin DFK-1.

EFFECT: invention reduces the cost of the rubber mixture owing to use of cheaper process additives, and increases nominal tensile strength and breaking elongation, and reduces the abrasion index.

2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a fire-resistant rubber mixture and can be used in car, oil and industrial rubber industry. The fire-resistant rubber mixture contains synthetic isoprene and diene rubber, polyvinyl chloride, sulphur, sulphenamide Ts, zinc oxide, stearine, technical carbon, monoethanolamine, naphtham-2, diaphene FP, N-nitrosodiphenylamine, oxanol KD-6, antimony trioxide, chlorinated paraffin XP-70, chlorinated paraffin XP-470 and borates.

EFFECT: invention improves physical and mechanical properties, especially fire-resistance, tensile strength and breaking elongation.

3 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: composite material for outer lining of rubber-fabric conveyor belts based on stereoregular cis-1,4-polyisoprene with content of cis-1,4 units of at least 96% - SKI-3 contains ultrahigh molecular weight polyethylene modified with carboxyl with subsequent mechanical activation in amount of 5 pts.wt per 100 pts.wt SKI-3.

EFFECT: invention increases wear resistance, improves frost resistance of the composite material while preserving physical and mechanical properties, lowers the cost of the composite material.

2 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: tyre tread mixture contains a cross-linkable polymer base having an unsaturated chain; 50-90 pts.wt silicon dioxide with surface area of 80-130 m2/g per 100 pts.wt polymer and 4-10 pts.wt per 100 pts.wt polymer of a silane binder of formula I: SH(CH2)3SiR1R22 (I), where: R1 is -OCH2CH3, and R2 is -O(CH2CH2O)5(CH2)12CH3.

EFFECT: invention improves adhesion of the tyre on a wet road surface and in winter conditions.

4 cl, 3 tbl

Rubber mixture // 2502754

FIELD: chemistry.

SUBSTANCE: rubber mixture contains the following, pts.wt: soluble butadiene-styrene rubber with addition of TDAE oil with low content of polycyclic aromatic hydrocarbons 90-100, rubber with a cis-butadiene linear structure with high content of cis-links on a neodymium catalyst 10-20, natural rubber 5-8, insoluble sulphur 2-3, vulcanising group 3-8, silica filler with specific surface area of 165 m2/g 70-80, microcrystalline wax-based stabiliser 1-2, antiaging agents 3-5, process additive 1-3, binding agent - bis[3-(triethoxy)-silylpropyl]-tetrasulphide 10-15.

EFFECT: improved adhesion on a wet road with lower rolling loss and obtaining fuel-efficient tyres.

1 dwg, 3 tbl

Pneumatic tyre // 2496809

FIELD: chemistry.

SUBSTANCE: rubber mixture contains per 100 pts.wt of a rubber component which contains at least one of natural rubber or synthetic rubber based on diene, 20-150 pts.wt precipitated silicon dioxide as filler and 1-25 pts.wt of a defined sulphur-containing silane compound as silane binder; silicon dioxide has cetyltrimethylaluminium bromide (CTAB) adsorption specific surface area (m2/g) and mode Aas of diameter (nm) of primary aggregates, determined by acoustic measurement of particle size distribution satisfying the equation (A), and for which the difference between loss of mass during calcination (wt % loss during calcination at 750°C for 3 hours) and loss of mass when heating (wt % loss during heating at 105°C for 2 hours) satisfies the equation (B) :Aas ≥ -0.76 × (CTAB) + 274 (a) (loss during calcination) - (loss during heating) ≤ 3 (B).

EFFECT: invention improves technological effectiveness of processing a rubber mixture and obtain tyres with low heat release and improved wear resistance.

12 cl, 3 tbl, 46 ex

Rubber mixture // 2495888

FIELD: chemistry.

SUBSTANCE: invention relates to a rubber mixture based on a combination of natural and synthetic cis-butadiene rubber, containing silica filler and can be used in the tyre industry for non-studded winter tyre treads. The rubber mixture contains the following, pts.wt: natural rubber SVR-70-80, cis-butadiene rubber - 20-30, sulphur - 1-2, vulcanising group - 8-9, active technical carbon - 5-10, silica filler with specific surface area of 165 m2/g - 30-50, stabiliser based on microcrystalline wax - 1-3, anti-ageing agents - 2-4, process additive - 1-3, softeners - 18-20, binding agent - bis-[3-(triethoxy-silylpropyl]-7-9.

EFFECT: invention increases adhesion of non-studded tyres to an ice-covered and snow-covered surface in a wide temperature range and reduces hysteresis losses.

6 tbl

FIELD: transport.

SUBSTANCE: invention relates to pneumatic tire and laminar plastic as inner bearing material. Proposed tire comprises laminar plastic composed of thermoplastic resin film or thermoplastic elastomer and rubber composition layer. Said rubber composition comprises 100 wt % of rubber compound, 0.5-20.0 wt % of a condensate to compound of the following formula 1: , where R1, R2, R3, R4 and R5 are hydrogen, hydroxyl group or C1-C8-alkyl group and formaldehyde, 0.25-200.0 wt % of methylene donor, sulfur or organic peroxide as curing agent, while donor-to-condensate ratio makes 0.5-10.0.

EFFECT: increased adhesion between film and rubber composition, ruled out tire lamination.

19 cl, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to rubber compositions. The composition contains diene-based rubber and one polyether or polyglycol ether based on cycloaliphatic epoxide. The composition can contain filler and a vulcanising agent. Another version of the composition contains diene-based rubber and one polyether or polyglycol ether based on cycloaliphatic epoxide and one filling oil. The filling oil is selected from a group consisting of aromatic oil, aliphatic oil, naphthene oil and mixtures thereof.

EFFECT: invention provides higher rate of vulcanisation, improved relative elongation and a higher modulus of elasticity with 300% elongation, improved dynamic mechanical properties.

27 cl, 4 dwg, 6 ex, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a rubber mixture and a tyre made from the rubber mixture. The rubber mixture is characterised by compounding of more than 1 pts.wt but less than 30 pts.wt of a low-molecular weight polymer component (B), having content of a bound aromatic vinyl compound of 0 wt % and average molecular weight with respect to polystyrene of 0.2×104-8.0×104, and 5-80 pts.wt filler (C) per 100 pts.wt of a high-molecular weight polymer component (A), having content of a bound aromatic vinyl compound of 0 wt % and average molecular weight with respect to polystyrene of at least 1.5×105. Content of the bound aromatic vinyl compound (S2) (wt %) in the low-molecular weight polymer component (B) and content of vinyl links (V2) (%) in a part of a conjugated diene compound in the low-molecular weight polymer component (B) satisfies the relationship S2+V2/2<25 (I).

EFFECT: invention provides excellent processing of the rubber mixture, improves the dynamic modulus of elasticity (G') and loss tangent (tanδ) at low temperature and improves wear-resistance of the tyre.

6 cl, 3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: tyre tread mixture contains a cross-linkable polymer base having an unsaturated chain; 50-90 pts.wt silicon dioxide with surface area of 80-130 m2/g per 100 pts.wt polymer and 4-10 pts.wt per 100 pts.wt polymer of a silane binder of formula I: SH(CH2)3SiR1R22 (I), where: R1 is -OCH2CH3, and R2 is -O(CH2CH2O)5(CH2)12CH3.

EFFECT: invention improves adhesion of the tyre on a wet road surface and in winter conditions.

4 cl, 3 tbl

FIELD: chemistry.

SUBSTANCE: vulcanisable rubber composition contains an elastomer; reinforcing filler selected from silicon dioxide, technical carbon and mixtures thereof; a curing agent and aminoalkoxy-modified silsesquioxane (AMS), which contains one or more compounds selected from a group consisting of amino-AMS, amino/mercaptan-with-AMS, amino/(blocked mercaptan)-with-AMS, mixtures thereof and solid compounds and aqueous solutions, neutralised with a weak acid. Also disclosed is a pneumatic tyre made from the disclosed vulcanisable rubber composition.

EFFECT: adding AMS to the rubber composition endows the vulcanisable rubber composition with improved dynamic viscoelastic and mechanical properties owing to improved dispersion of the reinforcing filler, and improves processability of the rubber composition.

13 cl, 6 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: method for automatic plastification of ground rubber is carried out as follows: step 1 involves mixing ingredients: rubber wastes are ground to obtain powder with particle size of 10-40 mesh, an activator and a plasticiser are added in weight ratio: powdered rubber: activator: plasticiser = 100: 0,3-0,4 : 8-18, and then uniformly mixed; step 2 involves desulphuration and plastification: the mixture obtained at step 1 is heated to 180-320°C for 8-15 minutes, followed by desulphuration and plastification to obtain plasticised powdered rubber; step 3 involves cooling: the plasticised powdered rubber is cooled to temperature of 80°C or lower and the obtained product is used right away or packed for further use. The automatic plastification apparatus includes: a mixing unit (1), a feeding unit (2), a thermal reaction unit (3) and a cooling unit (4), wherein the thermal reaction unit (3) is equipped with a heating element (5), the cooling unit (4) is equipped with a circulation cooling device (6), the output of the mixing unit (1) is linked to the input of the feeding unit (2), the input of the feeding unit (2) is linked to the output of the thermal reaction unit (3), and the output of the thermal reaction unit (3) is linked to the input of the cooling unit (4). Said feeding unit (2) is a helical feeding device I; said thermal reaction unit (3) is a helical feeding device II, and the heating element (5) is built into the outside of the helical feeding device II and is a device for heating with circulating oil heat-carrier; said cooling unit (4) is a helical feeding device III, and the circulation cooling device (6) is built into the outside of the helical feeding device III and serves for circulation cooling with water; the apparatus is provided with an electric control, wherein the mixing unit (1), the feeding unit (2), the thermal reaction unit (3) and the cooling unit (4) are connected by electric conductors to said electric control.

EFFECT: method and apparatus for automatic plastification of rubber which are ecologically clean, safe and reliable, have quality stability, good controllability, enabling immediate use of the plasticised ground rubber when making a product from rubber without hydration, saving energy and continuity.

2 cl, 2 tbl, 1 dwg, 4 ex

FIELD: transport.

SUBSTANCE: invention relates to pneumatic tire and laminar plastic as inner bearing material. Proposed tire comprises laminar plastic composed of thermoplastic resin film or thermoplastic elastomer and rubber composition layer. Said rubber composition comprises 100 wt % of rubber compound, 0.5-20.0 wt % of a condensate to compound of the following formula 1: , where R1, R2, R3, R4 and R5 are hydrogen, hydroxyl group or C1-C8-alkyl group and formaldehyde, 0.25-200.0 wt % of methylene donor, sulfur or organic peroxide as curing agent, while donor-to-condensate ratio makes 0.5-10.0.

EFFECT: increased adhesion between film and rubber composition, ruled out tire lamination.

19 cl, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a rubber mixture and a tyre made from the rubber mixture. The rubber mixture is characterised by compounding of more than 1 pts.wt but less than 30 pts.wt of a low-molecular weight polymer component (B), having content of a bound aromatic vinyl compound of 0 wt % and average molecular weight with respect to polystyrene of 0.2×104-8.0×104, and 5-80 pts.wt filler (C) per 100 pts.wt of a high-molecular weight polymer component (A), having content of a bound aromatic vinyl compound of 0 wt % and average molecular weight with respect to polystyrene of at least 1.5×105. Content of the bound aromatic vinyl compound (S2) (wt %) in the low-molecular weight polymer component (B) and content of vinyl links (V2) (%) in a part of a conjugated diene compound in the low-molecular weight polymer component (B) satisfies the relationship S2+V2/2<25 (I).

EFFECT: invention provides excellent processing of the rubber mixture, improves the dynamic modulus of elasticity (G') and loss tangent (tanδ) at low temperature and improves wear-resistance of the tyre.

6 cl, 3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to polyamide-elastomer mixtures for making moulded articles. The polyamide-elastomer mixture contains components in the following ratios, wt %: a) 30 to 95 of at least one partially crystalline polyamide having a solution viscosity greater than or equal to 1.75 (measured in m-cresol solution, 0.5 wt %, 20°C.), b) 5 to 50 of at least one elastomer produced by emulsion polymerisation of at least one conjugated diene, at least one α,β-unsaturated nitrile and, optionally, one or more additional copolymerisable monomers and subsequent spray drying of the latex obtained during emulsion polymerisation, c) optionally, 0 to 20 of one or more polyamides having a solution viscosity of less than 1.75 (measured in m-cresol solution, 0.5 wt %, 20°C.), relative to the total amount of components (a) to (c), and relative to 100 parts by weight of components (a) to (c), from 0 to 100 parts by weight of one or more additives. The disclosed polyamide-elastomer mixtures can be processed into moulded articles which are used, for example, in the motor car industry, particularly as channel conducting media.

EFFECT: good flexibility of polyamide-based materials and improved resistance to hydrolysis and oil swell.

33 cl, 4 dwg, 2 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a polymer composition. The method of producing the polymer composition includes the following steps: i.) obtaining polymer cement containing a polymer and a solvent; ii.) adding an acetal or ketal of an alditol to the polymer cement; and iii.) separating at least a portion of the polymer and the acetal or ketal of an alditol from the solution to obtain a polymer composition which contains a polymer and an acetal or ketal of an alditol, the polymer containing polydiene or a polydiene copolymer. Described is a version of the method of preparing the polymer composition and the polymer composition for making rubber articles; the acetal or ketal of an alditol can be selected from a group consisting of dimethylidene sorbitol, dibenzylidene sorbitol, di(alkylbenzylidene)sorbitol, 1,3-O-2,4-bis(3,4-dimethylbenzylidene)sorbitol, 1,3,2,4-bis(4-ethylbenzylidene)-1-allylsorbitol, 1,3,2,4-bis(3'-methyl-4'-fluorobenzylidene)-1-propylsorbitol, 1,3,2,4-bis(5',6',7',8'-tetrahydro-2-naphthaldehyde benzylidene)-1-allylxylitol, bis-1,3,2,4-(3',4'-dimethylbenzylidene)-1"-methyl-2"-propylsorbitol and 1,3,2,4-(3',4'-dimethylbenzylidene)-1-propylxylitol.

EFFECT: high resistance to cold flow of the obtained compositions.

11 cl, 5 tbl, 2 dwg, 12 ex

FIELD: chemistry.

SUBSTANCE: rubber mixture is prepared in a rubber mixer in two steps. The first step involves feeding rubber, technical carbon, softening agents, protective wax, N-isopropyl-N'-phenyl-n-phenylenediamine, polymerised 2,2,4-trimethyl-1,2-dihydroquinoline, N-cyclohexyl thiophthalimide, zinc oxide, stearic and oleic acid, after which the ingredients are mixed at 80°C for 4-5 minutes with rotor speed of 60 rpm. The second step involves feeding vulcanisation accelerators and mixing at 60°C for 2-3 minutes at rotor speed of 30 rpm. The obtained rubber mixture is passed through a cascade of series-connected dispersers, after which the treated mixture is vulcanised. Each cascade consists of 2-3 dispersers in form of de Laval nozzles. Pressure drop at each disperser on each cascade is equal to 250000-350000 Pa. The mixture is fed through cascades of dispersers by a pump and the pumping pressure is greater than the total pressure drop at the cascades by 1.2-1.5 times. Sulphur is fed into the critical part of the nozzle of the fist disperser of the first cascade.

EFFECT: method increases uniformity of distribution of components, particularly sulphur and carbon, in the volume of the rubber mixture.

FIELD: chemistry.

SUBSTANCE: rubber mixture is prepared in a rubber mixer in two steps. The first step involves feeding unsaturated rubber, technical carbon, softening agents, protective wax, N-isopropyl-N'-phenyl-n-phenylenediamine, polymerised 2,2,4-trimethyl-1,2-dihydroquinoline, N-cyclohexyl thiophthalimide, zinc oxide, stearic and oleic acid, after which the ingredients are mixed at 80°C for 4-5 minutes with rotor speed of 60 rpm. The second step involves feeding vulcanisation accelerators and mixing at 60°C for 2-3 minutes at rotor speed of 30 rpm. The obtained rubber mixture is subjected to low-frequency mechanical vibrations and then passed through a cascade of series-connected dispersers, after which the treated mixture is vulcanised. Each cascade consists of 2-3 dispersers in form of de Laval nozzles. Pressure drop at each disperser on each cascade is equal to 250000-350000 Pa. The mixture is fed through cascades of dispersers by a pump and the pumping pressure is greater than the total pressure drop at the cascades by 1.2-1.5 times. Sulphur is fed into the critical part of the nozzle of the first disperser of the first cascade, and the mixture in the critical part of the nozzle is accelerated to speed of 8-10 m/s.

EFFECT: invention enables to increase uniformity of distribution of components while improving physical and mechanical properties.

FIELD: chemistry.

SUBSTANCE: invention relates to curable rubber mixtures used to make industrial rubber articles and tyres. The composition of the curable rubber mixture includes, in solid output form as simultaneously an antioxidant, antiozonant and antifatigue agent, compounds from a group of N-alkyl-N'-phenyl-n-phenylenediamine derivatives with melting point from 49°C to 63°C in amount of 1.0-5 pts.wt.

EFFECT: invention increases wear resistance and fatigue strength of rubber, excludes or lowers the amount of additional antioxidants used in rubber mixtures.

2 cl, 6 tbl

Pneumatic tyre // 2496809

FIELD: chemistry.

SUBSTANCE: rubber mixture contains per 100 pts.wt of a rubber component which contains at least one of natural rubber or synthetic rubber based on diene, 20-150 pts.wt precipitated silicon dioxide as filler and 1-25 pts.wt of a defined sulphur-containing silane compound as silane binder; silicon dioxide has cetyltrimethylaluminium bromide (CTAB) adsorption specific surface area (m2/g) and mode Aas of diameter (nm) of primary aggregates, determined by acoustic measurement of particle size distribution satisfying the equation (A), and for which the difference between loss of mass during calcination (wt % loss during calcination at 750°C for 3 hours) and loss of mass when heating (wt % loss during heating at 105°C for 2 hours) satisfies the equation (B) :Aas ≥ -0.76 × (CTAB) + 274 (a) (loss during calcination) - (loss during heating) ≤ 3 (B).

EFFECT: invention improves technological effectiveness of processing a rubber mixture and obtain tyres with low heat release and improved wear resistance.

12 cl, 3 tbl, 46 ex

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