MXPA99008712A - Composition of rubber containing black of modified carbon and article that has component of lami - Google Patents

Abstract

The invention relates to a rubber composition containing a carbon black reinforcement containing modified silanol, which has a hydrocarbon grafted on its surface. The invention also relates to an item, such as, for example, a tire having at least one component of said rubber composition.

Description

C0HPb $ lC ?? N OF RUBBER CONTAINING BLACK OF MODIFIED CARBON AND ITEM THAT HAS COMPONENT OF THE SAME Field The invention relates to a rubber composition containing a carbon black reinforcement containing modified silane-1, having hydrocarbon radicals grafted therein. The invention also relates to an article < $. & manufacture, such as for example - a tire - that has a rubber compound composition.

BACKGROUND Rubber products, including rims, are typically prepared from components of rubber compositions based on elastomer that are reinforced with particulate carbon black. Sometimes these rim component rubber compositions also contain particulate silica reinforcement. While carbon black is hydrophobic in nature and has a degree of compatibility with elastomers based on diene, silica (ie silica precipitated into particles) is hydrophilic- or water-absorbing, in nature and is not considered to be is readily compatible with the diene-based elastomers. Additionally, the compatibility of carbon black to dlen-based elastomers is understood to be ß & aided by the Van der Waals attractive forces typically inherent between carbon black and diene-based elastomers and contributes the black compatibility of. Conversely, fee understands that there is typically a minimal interaction, if any, of Van der Waals forces between precipitated silica and diene-based elastomer to help the compatibility of the material. In the description of this invention, the term "phr" when used herein, and in accordance with conventional practice, refers to "parts of a respective material per 100 parts of rubber, or elastomer". As a rule, the terms and percentages used herein are by weight, unless otherwise indicated. In the description of this invention, the terms "rubber" and "elast eró" -? I are used in the present, can be used interchangeably, unless otherwise prescribed. the terms "rubber composition", "compound rubber" and "rubber compound", are used in the process. = -, are used interchangeably to refer to "rubber that has been mixed with various ingredients and materials" and such terms are well known to those having experience in the technique of mixing rubber and rubber composition.

SUMMARY AND PRACTICE OF THE INVENTION In accordance with this invention, a rubber composition is provided which is comprised of, baled in 100 parts by weight of the particles), (A) 100 parts by weight of at least one elastomer based on dyne, (B) about 30 to about 100, alternately about 30 to about 9 phr of reinforcement filler composed of (1) about 30 to about 1, alternatively about 30 to about 90, phr of A carbon black containing a plurality of silanol groups on its surface and which also contains a plurality of hydrocarbon radicals on its surface and (2) about zero to about 70, alternatively about 10 to about 50, phr of at least one reinforcing filler selected from eg or carbon, precipitated silica, aluminosilicate and carbon black containing sylanol without the grafted hydrocarbon radicals; wherein the grafted hydrocarbon radicals are comprised of at least one of the alkyl, aryl, alkaryl and aralkyl radicals. wherein the alkyl radicals are aliphatic hydrocarbon radicals having from 6 to 18 carbon atoms, wherein the aryl radicals contain from ß to 24 atoms < ? carbon, wherein the alkaryl radicals contain from 12 to 42 carbon atoms and wherein the aralkyl radicals contain from 12 to 42 carbon atoms.It is contemplated that the silanol groups on the surface of the black carbon containing sila? Ol provide said carbon black with a degree of elastomer reinforcing characteristics frequently attributed to the precipitated silica reinforcement, consequently promoting a non-hydrophilic property. desirable above mentioned, associated with the silica reinforcement as well as a reduction -? the forces of attraction of Van der Waals between the reinforcing filler and the elastomer. It is contemplated that the presence of the relatively bulky hydrocarbon groups on the carbon black surface containing silanol will increase its compatibility with the diene-based elastomer (s) by promoting a reductive of its aforementioned hydrophilic or desirable property and an increase in the forces of attraction of Van der Waalá between the reinforcement filling and the elastomer. It is calculated, for the purposes of this invention, that from about 5 to about 60 percent of the carbon black surface may contain silanol groups, taking into consideration the irregular surface and containing pores of the carbon black. Said surface area of the carbon black is a surface area as determined by the determination of BET. The BET method for measuring surface area is described, for example, in Jouynal oí the AmeriCan Chemical Society, Volume 60, page 304 (1930). For the carbon black containing modified silanol of this invention, it is contemplated that from about 5 to about 40 percent of its surface area determined by BET contains the bulky hydrocarbon groups. It is contemplated that a ratio of bulky hydrocarbon groups to silanol groups on the surface of the modified carbon black is on a scale of about 1/8 to about 8/1. A significant aspect of this invention is the introduction of relatively hydrocarbon groups. bulky to the surface of a carbon black containing silanol to counteract, or at least reduce, the effect of the hydrophilic propensity introduced by the aforementioned silanol groups and thereby improve the compatibility of the modified carbon black with base elastomers of diene. Also, in one aspect, it is hereby stated that an effect of the presence of bulky hydrocarbon groups tends to cause the carbon black containing silanol to have somewhat lower absorption interactions (Van der Waals) with diene-based elastomers. and, therefore, tends to have less effect on the immobilization of an elastomer necessary for the good hysteretic properties of its elastomer composition. As a result, it is seen that an improved reinforcing filler for diene-based elastomers is provided, in comparison with conventional carbon blacks and in comparison with coal necks containing silanol, without such modification of hydrocarbon group, More specifically. a reduction- or inhibition, of the occurrence of the Van der Waals forces between the elastomers and the carbon black is considered herein to be desirable and beneficial to improve (reduce) the hysteretic losses of the rubber composition which is reinforced with said modified carbon black which is to provide a lower resistance to the bearing of the rim. The rubber composition itself can also be provided as an azure-cured composition through vulcanization of the uncured elastomer composition. The curing with sulfur is achieved in a conventional manner, that is, by curing under elevated temperature and pressure conditions. for an appropriate period of time. In additional accordance with this invention, an article is provided as being comprised of at least one component of said rubber composition. Give further conformance to this invention, said article is an industrial product selected from hoses and various transmission belts having at least one component of said rubber composition., D © Further conformance with this invention, a rim comprised of at least one component of said rubber composition is provided. In further accordance with this invention, a rim is provided wherein the component is selected from when less than one of a circumferential tread, side wall, frame wire liner, frame layer liner, side wall apex - side wall insertion and internal frame lining, In accordance with this invention, a rim having a rolling band of said rubber composition is provided. In practice, it is conventionally desired that the elastomer composition contains a coupling or coupling agent to aid in the coupling of modified carbon black, precipitated silica, aluminosiliate and carbon black containing sylanol, as the case may be.; wherein the coupling agent has a fraction, preferably a silane fraction, reactivated in the same and another interactive fraction with the diese-based elastomer (s). They have experience in such a field for use for said coupling purpose, For example, said coupling agent may be a bis (3-alkoxysilyl) polysulfide, where its polysulific bridge contains from 2 to about sulfur atoms selected from d (a) the polysulfide having a prohiedy of from 2 to about 2.6 or (b) about 3.5 to about 4.5 sulfur atoms in the polysulfide bridge, wherein the alkyl radicals for the alkoxy component are selected from at least one of methyl and ethyl radicals, and the alkyl radical for the silylalkyl component is selected from ethyl, n-propyl and butyl radicals For example, said coupling agent can be be a bis-r- (3-triethoxysilylpropyl) polysulfide. diene-based elastomer peds can be used in the practice of this invention, and particularly homopolymers and copolymers of conjugated dienes, such as, for example, 1-butadiene and / or isoprene, or a copolymer of the conjugated diene and a vinyl compound aromatic, such as, for example, styrene and alpha-methylstyrene, preferably styrene. Representative examples of said diene-based elastomers are, for example, cis 1,4-polyisoprene (natural and synthetic), 1,4-polybutadiene, isoprene / butadiene copolymers, butadiene / isomer copolymers either prepared by emulsion polymerization o With organic solvent, with polybutadiene of high vinyl having a 1,2-vinyl content on a scale of about 30 to about 90 percent, 3,4-polyisoprene, and styrene / isoprene / butadiene terpolymers .

In practice, the carbon blacks containing silanol can be prepared by various means to provide the silanol groups on their surfaces, for example, the black carbon containing silanol can be treated by sodium silicate solution forming a silicate structure as EP-A1-711 805 is described, alternatively, carbon black containing silanol can be prepared by reacting an organ such as, for example, an alkylalkoxy silane with carbon black at a high temperature. They can be representative of said organosilanes, for example, tetraalkoxysilicates such as tetraethoxy silylate, tetraethoxy titanate, tetraethoxy zirconate and triethoxy aluminate. Alternatively, the carbon black containing silanol can be prepared by smoking at the same time an organosilane and oil at an elevated temperature. At least a portion of the remaining unmodified surface of the carbon black is modified with the bulky hydrocarbon groups (radicals). For him. carbon black containing modified silanol of this invention,] representative examples of alkyl radical substituents are, for example, tertiary butyl, n-hexyl, n-cx-tyl, tertiary octyl, hexadeqyl and ostadecyl radicals and combinations of the same, including alkylated radicals containing up to 18 carbon atoms. Representative examples of substituents of aryl radicals for the carbon black surface are, for example, phenyl, naphthyl, acetonefilo, biphenyl, indoyl and indenyl radicals and combinations thereof. Representative examples of radical substituents Alcaryl for the surface of the carbon black are, for example, phenyl radicals substituted with tertiary butyl, naphtyl, acetonaphtyl, biphenyl, indipyl and indenyl; phenyl radicals substituted with h-hexyl, pafthyl, acetonephthyl, biphenyl, indoyl and indenyl; phenyl radicals substituted with n-octyl, naphthyl, acetonitrile, biphenyl, indoyl and indenyl; phenyl radicals substituted with tertiary octyl, naphthyl, acetonefyl, biphenyl, indoyl and indenyl, phenyl radicals substituted with hexadecyl, naphthyl, acetonaphthyl, biphenyl, indoyl and indenyl; and phenyl radicals substituted with octadecyl, naphthyl, acetonaphthyl, biphenyl, indoyl and indenyl; and combinations thereof. Representative examples of aralkyl radical substituents for the carbon black surface are, for example, tertiary butyl radicals substituted with phenyl, n-hexyl, n-octyl, tertiary octyl and hexadecyl; tertiary butyl radicals substituted with naphthyl, n-h? xylo-n-octyl, tertiary octyl, and hexadeeyl; tertiary butyl radicals substituted with acetonephthyl, n-hexyl, n-octyl, tertiary octyl and hexadecyl; naphthyl radicals substituted with bifenyl, tertiary butyl, n-heyl, n-octyl, tertiary octyl and hexadecyl; Naphthyl radicals Substituted with indoyl, tertiary butyl, n-hexyl, n -octyl, tertiary octyl and hexadecyl; and naphthyl radicals substituted with indenyl, tertiary butyl, n-hexyl- n-octyl, tertiary octyl, and hexadecyl; and combinations thereof, The modification of the carbon black surface containing silanol with the bulky hydrocarbon radicals can be achieved, for example, by grafting the hydrocarbon radicals to the black carbon surface by free radical generation processes known to those who have experience in this technique. For example, free radical generators such as peroxides and diana-onium salts can be used. For free radical generation application d? peroxide see, for example, Orqanic Chemlstry (1987), by. Peter and C. Vollardt, page 108. For the application of free radical generation of diazonium salt, See, for example, Basic Principles of Organic Chemistry (1964) by JD Roberts and M, C. Casario, pages 1137-1139, This modification, or grafting, through generation of free radical, can be conducted in an organic solvent solution or in an aqueous medium, as desired. If the modification is to be conducted in an organic solvent solution, the representative solvents are, for example, cyclohexane and toluene, - They are representative of various diazonium free radical generation agents, for example aniline (phenylamine), 4-ter. -butylaniline, 4-aminobenzophenone. 2-an? Ino ~ 6-methylhentan, 1-amonopyrene, 1-arainp-naphyl and 2-ethylaniline. Representative of various peroxide-free radical generating agents, for example, perhydroxy acids such as t-butyl hydroperoxide and benzoic acid hydroperoxide as well as symmetrical and asymmetric peroxides such as bis (t-butylperoxy-isopropyl) benzene, t- butylperoxibehzoate, 2,5-dimethyl-1,5-bis (5-butylperoxy) hexane, 1,1'-bis (t-butylperoxy) 3,3,5-trimethylcyclohexane, dichumylperoxide. 2, 2 '- (-r-butylperoxydisopropylbenzene, The use of various free radical generating agents to graft hydrocarbon materials to various substrates is believed to be well known to those having experience in that field. Carbon blacks for preparation of modified carbon blacks contemplated for use in this invention are carbon blacks typically suitable for reinforcing elastomers, such as, for example, carbon blacks having an iodine adsorption value on a scale of about 4p. at approximately 160 g / kg, a DPB number (dibutylphthalate) on a scale of about 80 to about 180 cmVlOOg and the number of nitrogen uptake (BET) e? the scale of about 50 to about 200 rt-2 / g Reference may be made to The Vanderbilt Rubber Handbo? K (1990) pages 416-418 for general descriptions of said carbon blacks. blacks of coal, for example, N11Q, N121, N234, N330, N660 and the like. Healing Lps for sulfur curing the rubber composition are conventionally curatively used for sulfur curable elastomers which typically include sulfur and one or more appropriate curing accelerators and sometimes also a retarder.

Curative patches and the use thereof for sulfur-curable elastomer compositions are well known to those skilled in the art. The sequential mixing processes for preparing sulfur-curable rubber compositions in which the elastomers and associated ingredients, exclusive of the curatives, are first mixed in one or more sequential stages, usually referred to as a "non-productive mixing stage (s)". "followed by a final mixing step to add the curatives, usually referred to as a" productive mixing step ", are also well known to those skilled in the art. The commonly used silicon pigments used in rubber composition applications can be used as the silica in this invention, including pyrogenic silicon pigments and precipitates, including aluminosilicates, even though precipitated silicas are preferred, silicon pigments. Preferably employed in this invention are precipitated silicas such as, for example, those obtained by the acidification of a soluble silicate, eg silicate of sodium, generally exclusive of silica gels. These silicas could be characterized, for example, by having a BET surface area, as measured using nitrogen gas, preferably on the scale of about 40 to about 600, and more usually on a scale of about 50 to about 300 square meters. per gram (m2 / g). The BET method for measuring surface area is described in the Journal of the American Chemical S.ociety, Volume 60, page 304 (1930). The silica can also typically be characterized as having an absorption value of dibutyl phthalate (DBP) at a scale of from about 100 to about 400- and more usually about 150 to about 300 cc / 100 gm. It could be expected that the silica would have an average final particle size, for example, on the scale of 0.003 to 0.05 microns as determined by electron microscopy, even when the particles may be even smaller, or possibly smaller in size. Various commercially available silicas can be considered for use in this invention, such as, for example only herein, and without limit, silicas commercially available from PPG Industries under the trademark Hi-Sil with designations 210, 243, etc.; the available silicas of Rhone-Poulenc, with, for example, designations of Zeosil 1165MP and available glycos of pegussa AG, with, for example, designations VN2 and VN3, BV3380GR, etc, and Huber as Zeopol 8745. It is easily understood by those having experience in the art, that the rubber compositions would be composed by methods generally known in the field of rubber composition, such as by mixing the various vulcanizing constituent rubbers with sulfur, with various additive materials Commonly used, such as, for example, aids cured, such as sulfur, activators, retarders and accelerators, processing additives, such as oils, resins including tackifying resins, silicas, and plasticizers, fillers, pigments, fatty acid, zinc oxide. Waxes, antioxidants and antiozonants. peptizing agents and reinforcing materials, such as, for example, carbon black. As is known to those skilled in the art, depending on the intended use of the material (rubbers) vulcanizable with sulfur and vulcanized with sulfur, the aforementioned additives are commonly selected and used in conventional amounts. The ingredients are typically mixed in at least two secondary mixing stages, say, at least one nonproductive preparation stage, followed by a productive mixing step. The final curatives are typically mixed in the final stage which is conventionally called the "productive" mixing stage in which mixing typically occurs at a temperature, or final temperature, lower than the mixing temperature (s) that the preceding non-productive mixing stage (s); The terms "non-productive" and "productive" mixing stages are well known to those who have experience in the field of rubber mixing. In at least one of the non-productive mixing stages (NP), the materials are mixed thermomechanically and the mixing temperature is allowed to reach a temperature between 140aC and 185 * C. In the stage of productive mixing, the materials can be mixed at a temperature, for example, on a scale of about 110 ° C to about 120 ° C. The invention can be better understood by reference to the following examples in which the parts and percentages are Weighed, unless otherwise indicated. These examples are provided as a contemplated, exemplary practice of the invention.

EXAMPLE Negro Carbon black ('N234) is modified by surface treatment with an organosilane by the following method: A furnace is purged with nitrogen to create an inert gas atmosphere inside the furnace. After gently grinding the carbon black, they are added to the furnace. carbon black 0.5 grams of tetraethoxysilane per gram of carbon black. The homogenized mixture is then placed in a warm alumina crucible. The crucible is placed in the furnace, The furnace is purged with nitrogen / ene for about 30 minutes and then heated to about 8 ° C for about two hours. The crucible is then removed from the furnace and the contents are cooled to about room temperature which is typically on a scale of about 2 aC to about 5SC. The recovered carbon black is contemplated as containing silanol groups on its outer surface and, therefore, is carbon black containing silanol. The carbon black containing silanol is modified by grafting a phenyl hydrocarbon radical to its surface by use of a diaionium free radial generating compound, such as, for example, aniline (phenylamine) in a cyclohexane solvent.

For this Example, it is envisaged that about 5 percent of the carbon black surface coheres the Sij-anol groups thereon and about 20 percent of the carbon black surface contains the bulky hydrocarbon groups on its surface; where the surface area of the carbon black is the surface area determined by. BET. It is anticipated that the modified carbon black is hydrophilic in nature due to the presence or groups (radicals) of bulky hydrocarbon on its surface, despite the inclusion of the silanói groups in its surface, EXAMPLE II The modified carbon containing modified silanol prepared according to Example 1 is provided as being used for reinforcement of a rubber composition for a tread. rim in accordance with A recipe shown in the following Table 1.

Table 1 Material Parts Stages of Non-Productive Mixing E-SBR1 25 I / O rubber / Butadiene2 45 Cis rubber 1 .4-polybutadiene3 20 Natural rubber 10 Processing aids5 23.4 Fatty acid 3 Silica6 Variable Carbon Black7 Variable Agent and Copulation8 Variable Productive Mixing Stage Sulfur 1.5 zinc oxide 2.5 Antioxidant (s) 3 3 Accelerators of Sulfenamide and Ture Type 1.2 1) SBR prepared by emulsion polymerization by The Goodyear Tire & Rubber Company that has approximately 40 percent styrene content. 2) Isoprene / butadiene copolymer elastomer having a Tg of about -45 = C and an isoprene content of about 50 percent by The Goodyear Tire & Rubber Company,. 3) Rubber dc cís 1, 4-polybutadiene comp BÚDENE (R) by The Goodyear Tire S. Rubber Company. 4) Natural rubber (cis 1,4-polyisoprene). 5) Rubber processing oil as being approximately 9.4 parts in the E-SBR, where the amount of E-SBR is reported above a dry weight (without the oil) and in addition, about 14 parts of processing oil of additional rubber, plasticizers, resins and waxes are added. 6) A silica like 21165 MP by the Rhone Poulenc company 7) Carbon black in accordance with Table 2. 8) A tetrasulfur of bis-3- (triethoxysilylpropyl) (50% active) as X50S from Degussa GmbH as a 50/50 mixture of tetrasulfide with carbon black N330 (from this way, considered 50% active). 9) Of the type of dihydro-trimethyl quinoline. The components of carbon black, silica and silica couplers of the recipe shown in Table 2 f & they illustrate in the following Table 2. Composition A is considered as being something like a control, since it uses untreated carbon black and without any silica or silica couplers. Composition B uses an unmodified carbon black with a silica coupler.

Composition c uses the modified carbon black (Example 1) and a silica coupler. Composition D uses silica reinforcement and a silica coupler.

Table 2 Exp. A Exp B Exp C Exp O N 3 CB1 73 73 0 0 N234 treated2 0 0 73 0 Silicon copulator3 0 3 3 13.4 Silica * 0 0 0 83 1) N234 rubber reinforcing carbon black not treated as Vulcan 7f from Cabot Corporation, 2) Carbon black containing modified silane according to Example i. 3) Mix of bis (3-triethoxy-silylpropyl) tetrasulfide and carbon black in a 1: 1 ratio as X50S from Degussa GmbH. 4) Silica as Zeosil 1165 MP from the iRhape Poulenc company. The resulting rubber composition is vulcanized with sulfur in a suitable mold at an elevated temperature on a scale from about 150eC to about 18 aC, EXAMPLE III A rim of size 195 / 65R15 is provided as being prepared having a rubber band of the bearing. rubber composition of Example II. Although certain modalities and representative details have been shown for the purpose of illustrating the invention, it will be apparent to those skilled in the art that various changes and modifications may be made therein without abandoning the spirit or scope of the invention.

Claims (2)

1. CLAIMS 1 - A rubber composition characterized in that it comprises, based on 100 parts by weight of elastomer (s), (A) 100 parts by weight of at least one elastomer based on diene, (B) about 30 to about 100 phr of reinforcement filler composed of (1) about 30 to about 100 phr of a carbon black containing modified silanol, which contains a plurality of silanoi groups on its surface and which also contains a plurality of hydrocarbon radicals on its surface and ( 2) zero to about 70 phr of at least one reinforcing filler selected from carbon black - precipitated silica, aluminosilicate and carbon black containing ilanol without the hydrocarbon radicals and (C) a coupling agent having a fraction reactive with the silanol groups on the surface of the modified carbon black, precipitated silica, aluminosilicate and carbon black containing silanol and other interactive fraction with elastomer (s); wherein the hydrocarbon radicals are comprised at least one of the alkyl, aryl, alkaryl and aralkyl radicals, wherein the alkyl radicals are aliphatic hydrocarbon radicals having from 6 to 18 carbon atoms, wherein the aryl radicals contain 6 to 18 carbon atoms. to 24 carbon atoms, wherein the alcyl radicals contain from 12 to 42 carbon atoms and wherein the aralkyl radicals contain from 12 to 42 carbon atoms.
2. 2. The rubber composition of claim 1, characterized in that the hydrocarbon radicals are selected from at least one of (a) alkyl radicals selected from at least one of t-butyl, n-hexyl radicals , n-octyl, tertiary octyl, hexadecyl and octadecyl, (b) aryl radicals selected from at least one of phenyl, naphthyl, acetonaphthyl, bifenyl, indoyl and indenyl radicals, (c) alkaryl radicals selected from at least one of phenyl radicals substituted with tertiary, naphthyl, acetone, yl, biphenyl, indylp and indenyl; phenyl radicals substituted on ñ? -hexyl, naphtyl, acetonaphthyl, biphenyl, indyl and ihdenyl; phenyl radicals substituted with rt-octyl, naphtyl, ioletonaphyl, biphenyl, indoyl and indenyl; phenyl radicals substituted with tertiary octyl, phenyl, acetonephthyl, biphenyl, indoyl and indenyl; phenyl radicals substituted with hexadecyl, naphthyl, acetonaphthyl, biphenyl, indoyl and indenyl; and phenyl radicals substituted with octadecyl, naphthyl, acetonaphthyl, biphenyl, indoyl and indenyl; (d) aralkyl radicals selected from at least one of tertiary butyl substituted with phenyl, n * -hexyl, β-octyl, tertiary octyl and hexadecyl; tertiary butyl radicals substituted with naphth, ilo, n-hexyl, n-octyl, tertiary octyl and hexadécyl; 'substituted tertiary butyl radicals acetonefyl, n-hexyl, n-octyl, tertiary octyl and hexadecyl; tertiary butyl radicals substituted with biphenyl, n-hexyl, n-octyl, tertiary octyl and hexadecyl; tertiary butyl radicals substituted with naphthyl, n-hexyl,? -octyl, tertiary octyl, and hexadecyl; tertiary butyl radicals substituted by indoyl, n-hexyl, n-octyl, tertiary octyl and hexadecyl; and tertiary butyl radicals substituted with indenyl, n -hexyl, n-octyl, tertiary octyl and hexadecyl. 3 - The rubber composition of any of the preceding claims, characterized in that it comprises (A) 100 phr of at least one diene-based elastomer selected from homopolymers and copolymers of conjugated diene diene hydrocarbon (s) and from copolymers of hydrocarbon (s) of diene and an aromatic compound of vihyl-selected from styrene and alpha-methylstyrene, (B) from about 30 to about 100 phr of a reinforcing filler composed of (I) about 20 to about 50 carbon black phr containing modified silanol containing a plurality of silanol groups on its surface and also containing a plurality of radicals and hydrocarbon grafted on its surface and (2) about 10 to about 80 phr of at least one filler reinforcement selected from carbon black, precipitated silica, aluminosilicate and carbon black containing silanol without the grafted hydrocarbon radicals, and (C) a coupling agent having a reactive fraction with Silanol groups on the surface of the modified carbon black, precipitated silica, aluminosilicate and black of carbon containing silanol and another fraction interactive with the elastomer (s); wherein the grafted hydrocarbon radicals are comprised of at least one of the alkyl, aryl, alkaryl and aralkyl radicals, wherein the alkyl radicals are aliphatic hydrocarbon radicals having from 6 to 18 carbon atoms, wherein the radicals Aryl contains from 6 to 24 carbon atoms, wherein the alkaryl radicals contain from 12 to 42 carbon atoms and wherein the aralkyl radicals contain from 12 to 42 carbon atoms, 4. The rubber composition of any of the previous claims, characterized in that the coupling agehte is a bis- (3-trialkoxysilylalkyl) polysulfide having from 2 to about 6, with an average of from about 2 to about 2.6, sulfur atoms in its pplisulfide bridge, where the alkyl radical of the alkoxy groups is selected from methyl and ethyl radicals and the alkyl radical of the silylalkyl group is selected from ethyl, n-propyl and butyl. 5.- The rubber composition of any d? from the preceding claims 1-3, characterized in that the coupling agent is a bis- (3-trialkoxysilylalkyl) polysulfide having from 2 to about 6, with an average of about 3.5 to about 4.5, azefers on its bridge polysulfidic; wherein the alkyl radical of the alkoxy groups is selected from methyl and ethyl radicals and the alkyl radical of the silylalkyl group is selected from ethyl, n-propyl and butyl radicals. The rubber composition of any of the preceding claims, characterized in that the aluminosilicate is a co-precipitated silicate and aluminate. 7. The rubber composition of any of the preceding claims, characterized in that the carbon black containing silanol is prepared by operating an orqanosilane with a carbon black at a high temperature or co-smoking an orga- silane with an oil at a high temperature. 8 - The rubber composition of claim 7, characterized in that the weight ratio of silanol groups to the hydrocarbon radicals on the surface of the modified carbon black is on a scale of about 1/8 ß. approximately 8/1. 9. The rubber composition of claim 3, characterized in that about 5 to about 6-0 percent d the surface of the modified carbon black contains silanpl groups and about 5 to about 40 percent of the surface of the carbon black. Modified carbon black contains the hydrocarbon radicals. 10. The rubber composition of any of claims 1-7 above, characterized in that the grafted hydrocarbon radical for the modified carbon black is an alkyl radical selected from at least one of the t-butyl radicals, n -hexyl, n-oethyl, tertiary octyl, hexadecyl and octadecyl. 11. The rubber composition of any of claims 1-7 above, characterized in that the grafted hydrocarbon radical for the modified carbon black is an alkaryl radical selected from at least one of (a) substituted phenyl radicals. tertiary butyl, naphthyl, acetonaphthyl, biphenyl, indoyl and indenyl; (b) phenyl radicals sub tttuidp cpn n-hexylene, naphthyl, acetonefyl, biphenyl, indoyl and indenyl; (c) phenyl radicals substituted with n-octyl, naphthyl, acetcnaphtylp, biphenyl, indoyl and indenyl; (d) phenyl radicals substituted with tertiary octyl, naphthyl, acetone-naphthyl, biphenyl, indoyl and indenyl; (e) phenyl radicals substituted with hexadecyl, naphthyl, acetonefl, biphenyl, indoyl and indenyl; and (f) phenyl radicals substituted with octadecyl, naphthyl, acetonefyl, biphenyl, indoyl and indenyl. 12. The rubber composition of any of the preceding claims, characterized in that the diene-based elastomer (s) is selected from at least one of cis 1, -? Cliisoprenp (natural and inthetic), cís 1 , -pollbutadiene, isoprene / butadiene copolymers, butadiene / styrene copolymers are already prepared by emulsion polymerization or organic solvent, high vinyl polybutadiene having a content of vinyl 1,2- on a scale of about 30 to about SO per cent, 3-polyisoprene, and terpolymers of isomer / isoprene / butadiene. 13 - The rubber composition of any of the preceding claims, characterized in that it is vulcanized with sulfur, 14. An article characterized perché is coprendidp of when, less a component of the position of rubber of any of claims 1 -12 above that is vulcanized with sulfur. 15. The article of claim 14, characterized in that it is an industrial article of manufacture selected from hoses and bands. 16. A tire characterized in that it has at least one component of the rubber composition of any one of claims 1-12 above. 17. A rim characterized in that it has a circumferential tread of the rubber composition of any of claims 1-12 above.