WO2010126142A1 - Pneu - Google Patents

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Publication number
WO2010126142A1
WO2010126142A1 PCT/JP2010/057708 JP2010057708W WO2010126142A1 WO 2010126142 A1 WO2010126142 A1 WO 2010126142A1 JP 2010057708 W JP2010057708 W JP 2010057708W WO 2010126142 A1 WO2010126142 A1 WO 2010126142A1
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Prior art keywords
rubber
tire
carcass
mass
group
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PCT/JP2010/057708
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English (en)
Japanese (ja)
Inventor
鈴木　朗
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株式会社ブリヂストン
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Publication of WO2010126142A1 publication Critical patent/WO2010126142A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/45—Heterocyclic compounds having sulfur in the ring
    • C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
    • C08K5/47—Thiazoles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles

Definitions

  • the present invention relates to a tire having a carcass in which at least one layer of a carcass ply is formed of a steel cord layer. More specifically, the present invention relates to a rubber composition excellent in adhesiveness to a steel cord used as a coating rubber for a carcass steel cord. It relates to a tire having excellent durability.
  • JP 2004-148986 A (Claims, Examples, etc.) Japanese Patent Laying-Open No. 2005-67358 (Claims, Examples, etc.)
  • An object of the present invention is to provide a tire excellent in durability of adhesion between a steel cord and a coating rubber in a carcass portion even under conditions and excellent in durability.
  • a carcass made of one or more carcass plies and a belt made of one or more belt layers arranged on the outer side in the tire radial direction of the carcass A tire comprising a layer of a steel cord coated with a coating rubber, the target tire is obtained by using a rubber composition having specific physical properties for the coating rubber covering the steel cord of the carcass.
  • the inventors have found out that the present invention has been completed.
  • the present invention resides in the following (1) to (18).
  • the rubber composition contains 0.1 to 10 parts by mass of the sulfenamide vulcanization accelerator represented by the general formula (I) with respect to 100 parts by mass of the rubber component.
  • R 1 is a tert-butyl group
  • n 0,
  • R 2 is a linear alkyl group having 1 to 6 carbon atoms
  • R 3 to R 6 Is a tire as described in said (1) which is a hydrogen atom.
  • R 1 in the general formula (I) is a tert-butyl group
  • n 0,
  • R 2 is a methyl group, an ethyl group, or an n-propyl group
  • R 3 to R 6 are The tire according to (1), which is a hydrogen atom.
  • (9) The tire according to any one of (1) to (8), wherein the rubber composition further contains cobalt and / or a compound containing cobalt.
  • FIG. 1 is a cross-sectional view showing an example of an embodiment of a tire of the present invention.
  • the tire A of the present embodiment includes a tread portion 1, a pair of sidewall portions 2 extending radially inward from the side portions of the tread portion 1, and a radius of the sidewall portion 2.
  • a bead portion 3 connected to the inner end in the direction is provided.
  • the tire A of the present embodiment has a tire frame structure, and the carcass 4 that reinforces the tread portion 1, the sidewall portion 2, and the bead portion 3 of the tire is configured by one or more carcass plies. And a body portion extending in a toroidal manner between the respective bead cores 5 disposed in the respective bead portions 3, and a turn-up portion wound around each bead core 5 radially outward from the inner side to the outer side in the tire width direction. It has the structure which has.
  • the carcass 4 in FIG. 1 is composed of one carcass ply. However, in the tire of the present invention, the number of carcass plies may be plural.
  • reference numeral 6 denotes a belt
  • the belt 6 is composed of one or more belt layers disposed on the outer side in the tire radial direction of the crown portion of the carcass 4.
  • the belt 6 in the figure is composed of two belt layers.
  • the number of belt layers is not limited to this.
  • the tire A of the present embodiment includes a steel cord layer that the carcass 4 is coated with a coating rubber. That is, at least one carcass ply of the carcass 4 may be a steel cord layer, and one or more carcass ply layers may be a steel cord layer.
  • the coating rubber covering the steel cord of the carcass 4 of the tire A contains a rubber component, sulfur, and a sulfenamide vulcanization accelerator represented by the following general formula (I). This rubber composition is used.
  • the rubber component of the rubber composition used for the coating rubber is not particularly limited as long as it exhibits rubber elasticity, but in addition to natural rubber, vinyl aromatic hydrocarbon / conjugated diene copolymer, polyisoprene rubber, All known rubbers such as butadiene rubber, butyl rubber, halogenated butyl rubber, and synthetic rubber such as ethylene-propylene rubber can be used.
  • the rubber component may be used alone or in combination of two or more. From the viewpoint of adhesion characteristics with steel cords and fracture characteristics of the rubber composition, the rubber component is composed of at least one of natural rubber and polyisoprene rubber, or contains 50% by mass or more of natural rubber, with the balance being synthetic rubber. It is preferable.
  • the content of sulfur contained in the rubber composition for coating rubber is in the range of 0.3 to 10 parts by mass, preferably in the range of 3 to 8 parts by mass with respect to 100 parts by mass of the rubber component.
  • the sulfur content is 0.3 parts by mass or more with respect to 100 parts by mass of the rubber component, it is preferable in terms of adhesiveness to the steel cord, and when it is 10 parts by mass or less, an excessive adhesive layer is generated. Since it is suppressed, adhesiveness is not lowered, which is preferable.
  • the compound represented by the general formula (I) blended in the rubber composition for coating rubber has a vulcanization retardation effect equivalent to N, N-dicyclohexyl-2-benzothiazolylsulfenamide, and It has excellent adhesion durability in direct vulcanization adhesion to a metal reinforcing material such as a steel cord, and is suitably used for a rubber composition for coating a carcass rubber layer having a steel cord.
  • R 1 is a tert-butyl group
  • x 1 or 2
  • a sulfenamide compound which is a hydrogen atom, as a vulcanization accelerator in terms of adhesion and vulcanization delay effect.
  • sulfenamide vulcanization accelerators are used as vulcanization accelerators for the first time in the present invention, and are the slowest in the vulcanization reaction among the conventional sulfenamide vulcanization accelerators.
  • N, N-dicyclohexyl-2-benzothiazolylsulfenamide which is known as a vulcanization accelerator that gives a sufficient vulcanization retarding effect, and has both sufficient vulcanization promoting ability and steel cord Excellent adhesion durability in direct vulcanization bonding with metal reinforcing materials such as Therefore, it is preferably used for a rubber composition for coating or the like having excellent adhesion durability in direct vulcanization adhesion with the steel cord of the carcass ply layer of the tire of the present invention.
  • R 1 in the sulfenamide compound represented by the general formula (I) represents a branched alkyl group having 3 to 12 carbon atoms. If R 1 is a branched alkyl group having 3 to 12 carbon atoms, the vulcanization acceleration performance of the compound represented by the general formula (I) is good and the adhesion performance can be enhanced.
  • R 1 of the compound represented by the general formula (I) include isopropyl group, isobutyl group, triisobutyl group, sec-butyl group, tert-butyl group, isoamyl group (isopentyl group), neopentyl group, tert-amyl group (tert-pentyl group), isohexyl group, tert-hexyl group, isoheptyl group, tert-heptyl group, isooctyl group, tert-octyl group, isononyl group, tert-nonyl group, isodecyl group, tert-decyl group , Isoundecyl group, tert-undecyl group, isododecyl group, tert-dodecyl group and the like.
  • R 1 preferably has a branch at the ⁇ -position, and more preferably, from the viewpoint of effects such as obtaining a suitable scorch time.
  • a tert-alkyl group having 3 to 12 carbon atoms is preferred, and in particular, tert-butyl group, tert-amyl group (tert-pentyl group), tert-dodecyl group, among which tert-butyl group is preferred from the viewpoint of synthesis and raw material acquisition It is economically excellent, and also provides a vulcanization rate equivalent to that of DCBS (DZ) and is particularly desirable from the viewpoint of further adhesion.
  • DCBS DCBS
  • R 2 in the sulfenamide compound represented by the general formula (I) represents a linear alkyl group having 1 to 10 carbon atoms.
  • R 2 is a linear alkyl group having 1 to 10 carbon atoms
  • the vulcanization acceleration performance of the compound represented by the general formula (I) is good and the adhesion performance can be enhanced.
  • Specific examples of R 2 of the compound represented by the general formula (I) include methyl group, ethyl group, n-propyl group, n-butyl group, n-amyl group (n-pentyl group), n-hexyl. Group, n-heptyl group, n-octyl group, nonyl group, decyl group and the like.
  • R 3 to R 6 in the sulfenamide compound represented by the general formula (I) are a hydrogen atom, a linear alkyl group having 1 to 4 carbon atoms or an alkoxy group, and a branched one having 3 to 4 carbon atoms.
  • R 3 and R 5 are each a linear alkyl group or alkoxy group having 1 to 4 carbon atoms, or a group having 3 to 4 carbon atoms.
  • R 3 to R 6 are an alkyl group or alkoxy group having 1 to 4 carbon atoms, it is preferably 1 carbon atom, and particularly preferably a hydrogen atom. This is because in any case, the ease of synthesis of the compound and the vulcanization rate do not slow down.
  • R 3 to R 6 of the sulfenamide compound represented by the general formula (I) include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec- Examples thereof include a butyl group, a tert-butyl group, a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group, an n-butoxy group, an isobutoxy group, a sec-butoxy group, and a tert-butoxy group.
  • R 1 and R 2 in the sulfenamide compound represented by the general formula (I) are both branched alkyl groups, the difficulty of synthesis increases, and a stable compound is difficult to synthesize. In particular, when R 1 and R 2 are both tert-butyl groups, the synthesis is not successful. Moreover, when both R 1 and R 2 are branched alkyl groups, the heat resistant adhesiveness is deteriorated, which is not preferable.
  • R 1 in the sulfenamide compound represented by the general formula (I) is a branched alkyl group having 3 to 12 carbon atoms, and R 2 is a linear alkyl group having 1 to 10 carbon atoms.
  • R 1 and R 2 in the sulfenamide compound represented by the above general formula (I) are a particularly preferred combination of R 1 and R 2 in the sulfenamide compound represented by the above general formula (I), R 1 is a tert-butyl group, and R 2 is a linear alkyl having 1 to 10 carbon atoms.
  • the groups R 3 to R 6 are a combination of hydrogen atoms.
  • the best mode combination is when R 1 is a tert-butyl group and R 2 is a methyl group, ethyl group, n-propyl group, or n-butyl group having 4 or less carbon atoms.
  • the vulcanization speed is equivalent to that of DCBS (DZ), further ensuring adhesion performance, and human body accumulation
  • DCBS DCBS
  • the combination which becomes the best mode can be confirmed from the numerical value of the octanol / water partition coefficient (log POW) which is one of simple measures for evaluating the condensability of chemicals.
  • log POW octanol / water partition coefficient
  • n is preferably 0.
  • the Mooney scorch time is faster.
  • R 1 is a functional group other than a branched alkyl group having 3 to 12 carbon atoms (for example, an n-octadecyl group) or 12 carbon atoms.
  • R 2 is a functional group other than a linear alkyl group having 1 to 10 carbon atoms (eg, n-octadecyl group) or a linear alkyl group exceeding 10 carbon atoms
  • R 3 to R 6 are outside the range of each functional group and carbon number outside the above range, and when n is 2 or more, the effects of the object of the present invention are rarely exhibited.
  • the preferable Mooney scorch time becomes slow and the vulcanization time becomes long, resulting in a decrease in productivity, adhesion, or vulcanization performance and rubber performance as an accelerator. .
  • x is 3 or more, it is not preferable in terms of stability.
  • R 1 in the sulfenamide compound represented by the above general formula (I) is a branched alkyl group, it has a branch other than the ⁇ -position, for example, 2-ethylhexyl, 2-ethylbutyl, etc. Therefore, it is desirable that there is a branch at the ⁇ position because the balance between vulcanization speed, adhesion performance securing, and human body accumulation tends to deteriorate.
  • representative examples of the compound represented by the general formula (I) include N-methyl-Nt-butylbenzothiazol-2-sulfenamide, N-ethyl-Nt- Butylbenzothiazol-2-sulfenamide, Nn-propyl-Nt-butylbenzothiazol-2-sulfenamide, Nn-butyl-Nt-butylbenzothiazo -L-2-sulfenamide, N-methyl-N-isoamylbenzothiazol-2-sulfenamide, N-ethyl-N-isoamylbenzothiazol-2-sulfenamide, Nn -Propyl-N-isoamylbenzothiazol-2-sulfenamide, Nn-butyl-N-isoamylbenzothiazol-2-sulfenamide, N-methyl-N-tert-amylbenzothia Sol-2 Sulfenamide, N-methyl-Nt
  • N-methyl-Nt-butylbenzothiazol-2-sulfenamide, N-ethyl-Nt-butylbenzothiazol-2-sulfenamide Phenamide and Nn-propyl-Nt-butylbenzothiazol-2-sulfenamide are preferred.
  • N-methyl-Nt-butylbenzothiazol-2-sulfenamide, N-ethyl-Nt-butyl are particularly preferred in that they have the longest scorch time and excellent adhesion performance.
  • benzothiazol-2-sulfenamide or Nn-propyl-Nt-butylbenzothiazol-2-sulfenamide may be used alone or in combination.
  • general-purpose vulcanization accelerators such as N-tert-butyl-2-benzothiazol sulfenamide (TBBS), N-cyclohexyl-2-benzothiazol sulfenamide (CBS), dibenzothiazolyl disulfide (MBTS), etc. It is also possible to use in combination.
  • the following method can be mentioned as a preferable manufacturing method of the sulfenamide compound represented by the general formula (I) of the present invention. That is, N-chloroamine and bis (benzothiazol-2-yl) disulfide prepared in advance by the reaction of the corresponding amine and sodium hypochlorite are reacted in an appropriate solvent in the presence of an amine and a base. If an amine is used as the base, neutralize and return to the free amine, then subject to appropriate post-treatment such as filtration, washing with water, concentration and recrystallization according to the properties of the resulting reaction mixture. Sulfenamide is obtained.
  • Examples of the base used in this production method include raw material amine used in excess, tertiary amine such as triethylamine, alkali hydroxide, alkali carbonate, alkali bicarbonate, sodium alkoxide and the like.
  • the reaction is carried out using excess raw material amine as a base or tertiary amine triethylamine, neutralizing the hydrochloride formed with sodium hydroxide, taking out the target product, and then removing the amine from the filtrate.
  • a method of reuse is desirable.
  • As the solvent used in this production method alcohol is desirable, and methanol is particularly desirable.
  • N-ethyl-Nt-butylbenzothiazol-2-sulfenamide an aqueous sodium hypochlorite solution was added dropwise to Nt-butylethylamine at 0 ° C. or lower and the oil layer was stirred for 2 hours.
  • aqueous sodium hypochlorite solution was added dropwise to Nt-butylethylamine at 0 ° C. or lower and the oil layer was stirred for 2 hours.
  • Bis (benzothiazol-2-yl) disulfide, Nt-butylethylamine and the oil layer described above were suspended in methanol and stirred under reflux for 2 hours.
  • the content of these sulfenamide-based vulcanization accelerators is 0.1 to 10 parts by weight, preferably 0.5 to 5.0 parts by weight, and more preferably 0.8 parts per 100 parts by weight of the rubber component.
  • the amount is desirably 8 to 2.5 parts by mass.
  • the content of the vulcanization accelerator is less than 0.1 parts by mass, the vulcanization is not sufficiently performed.
  • the content exceeds 10 parts by mass, bloom is a problem, which is not preferable.
  • the rubber composition used for the coating rubber for coating the steel cord of the carcass 4 of the present invention contains cobalt (a simple substance) and / or a compound containing cobalt from the viewpoint of improving the initial adhesion performance.
  • cobalt-containing compound that can be used include at least one of a cobalt salt of an organic acid and a cobalt salt of an inorganic acid, such as cobalt chloride, cobalt sulfate, cobalt nitrate, cobalt phosphate, and cobalt chromate.
  • Examples of the organic acid cobalt salt that can be used include at least one of cobalt naphthenate, cobalt stearate, cobalt neodecanoate, cobalt rosinate, cobalt versatate, cobalt tall oil, and the like.
  • the organic acid cobalt may be a complex salt in which a part of the organic acid is replaced with boric acid. Specifically, a commercial name “manobond” manufactured by OMG Co., Ltd. may be used.
  • a commercial name “manobond” manufactured by OMG Co., Ltd. may be used.
  • the adhesion performance is improved even if it is not a cobalt salt such as a fatty acid.
  • the (total) content of these cobalt and / or cobalt-containing compounds is 0.03 to 3 parts by weight, preferably 0.03 to 1 part by weight, based on 100 parts by weight of the rubber component, as the amount of cobalt. More preferably, the content is 0.05 to 0.7 parts by mass. If the content of these cobalt amounts is less than 0.03 parts by mass, further adhesiveness cannot be exhibited. On the other hand, if it exceeds 3 parts by mass, the aging physical properties are greatly reduced, which is not preferable.
  • the amine compound is added in an amount of 0.8 to 100 parts by mass of the rubber component in order to further improve the fracture resistance of the coating rubber. It is desirable to add up to 3 parts by mass.
  • the amine compound that can be used is not particularly limited.
  • n- (1,3-dimethylbutyl) -N′-phenyl-p-phenylenediamine, 2,2,4-trimethyl-1,2-dihydro Amine-ketone compounds such as quinoline polymer, 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, reaction product of diphenylamine and acetone: phenyl-1-naphthylamine, alkylated diphenylamine, octylation Diphenylamine, 4,4′-bis ( ⁇ , ⁇ -dimethylbenzyl) diphenylamine, p- (p-toluenesulfonylamido) diphenylamine, N, N′-di-2-naphthyl-p-ferenediamine, N, N ′ -Diphenyl-p-ferenediamine, N-phenyl-N'-isopropyl-p-farenedamine, - phenyl-
  • the rubber composition used for the coating rubber covering the steel cord of the carcass 4 contains 0.8 to 3 parts by mass of an amine compound. 2)
  • the amine compound can prevent the formation of CuS layer on the surface of the steel cord when the steel cord is covered with the coating rubber and left standing (treating), so the adhesion reaction is stable. The adhesion durability after vulcanization can be further improved, and 3) Since the amine or compound has a corrosion-proofing action on the steel cord, the corrosion of the steel cord can be prevented.
  • the content of the amine compound in the rubber composition is less than 0.8 part by mass, the effect of containing the amine compound cannot be expected, while if it exceeds 3.0 parts by mass, Sometimes amine compounds bloom on the surface of the steel cord, causing delamination between members.
  • the rubber composition used for the coating rubber for coating the steel cord of the carcass 4 of the present invention includes a compounding agent usually used in a tire according to the present invention.
  • a compounding agent usually used in a tire according to the present invention.
  • an inorganic filler such as carbon black or silica, a softening agent, an anti-aging agent, or the like can be appropriately blended depending on the tire application.
  • the tire of the present invention can prepare a rubber composition for a coating rubber that covers the steel cord of the carcass 4 by kneading the above components with, for example, a Banbury mixer, a kneader, etc., for passenger cars, trucks, buses, and motorcycles.
  • a coating rubber for covering the steel cord of the carcass 4 of the tire, etc. it can be suitably used for direct vulcanization adhesion with the steel cord.
  • the tire of the present invention configured as described above can be suitably applied to automobile and truck / bus tires that require particularly high strength, and satisfies the requirements of heavier loads, higher speeds, and higher life.
  • the tire has excellent adhesion durability between the steel cord and the coating rubber in the carcass part, and the tire has excellent durability.
  • a rubber composition further containing cobalt (a simple substance) and / or a compound containing cobalt the steel cord used for the carcass part of the tire is further excellent in durability for durability, and further excellent in durability. Tires can be obtained.
  • the breaking resistance of the coating rubber can be improved both when new and after running,
  • the steel cord is covered with a coating rubber and left standing (treating)
  • CuS layer formation on the surface of the steel cord can be prevented, so that the adhesion reaction can be stabilized and the adhesion durability after vulcanization can be further improved.
  • the steel cord since the steel cord has a corrosion-resistant action against the steel cord, the steel cord can be prevented from being corroded, so that it can be suitably loaded on a heavy load tire, and in particular, the maximum thickness of the shoulder portion is 100 mm.
  • the present invention can be suitably applied to the heavy load tire described above, for example, an off-the-lore type tire. It can also be suitably applied to tires for treks and buses.
  • the vulcanization accelerator used in the coating rubber for coating the steel cord of the carcass of the present invention will be described in more detail based on the production examples of the present invention, and tire examples and comparative examples of the present invention. It is not limited to these production examples and examples.
  • the octanol / water partition coefficient (log P) of the obtained vulcanization accelerators (1 to 4) was measured by a high performance liquid chromatography method according to JIS Z 7260-117 (2006). A high performance liquid chromatography manufactured by Shimadzu Corporation was used.
  • Examples 1 to 7 and Comparative Examples 1 to 5 Using a 2200 ml Banbury mixer, the rubber component, sulfur, the vulcanization accelerator obtained in the above production example, the organic acid cobalt salt, and other compounding agents were kneaded and mixed in the formulation shown in Tables 1 and 2 below. Thus, an unvulcanized rubber composition was prepared. Next, a steel cord was covered with the obtained rubber composition to form a carcass layer, and a pneumatic lasil tire of size 18.00R25 having the carcass layer was prototyped by a conventional method.
  • the coating rubber covering the steel cord of the tire carcass is suitable for passenger cars, trucks, buses and the like by using a suitable rubber composition that is directly vulcanized and bonded to the steel cord. .

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un pneu qui satisfait des conditions requises strictes pour une charge supérieure, une vitesse supérieure et un niveau de confort supérieur, présente une excellente durabilité de l'adhésion entre un câble métallique et un caoutchouc de revêtement dans une carcasse même dans des conditions difficiles, et a une excellente durabilité. L'invention concerne spécifiquement un pneu (A) doté d'une carcasse (4), constituée d'au moins une carcasse radiale et une ceinture constituée d'au moins une couche ceinturée (6) qui est positionnée à l'extérieur, dans la direction radiale du pneu, de ladite carcasse (4), et ladite carcasse (4) comprenant une couche constituée de câbles métalliques revêtus d'un caoutchouc de revêtement, caractérisé en ce que, comme la couche de revêtement contenant les câbles d'acier dans ladite carcasse (4), une composition de caoutchouc, contenant un composant de caoutchouc, du soufre et un accélérateur de vulcanisation de sulfénamide représentée par la formule générale (I), est utilisée. En général, dans la formule (I), R1 représente un groupe alkyle ramifié ayant 3 à 12 atomes de carbone; R2 représente un groupe alkyle à chaîne droite ayant 1 à 10 atomes de carbone; R3 à R6 peuvent être identiques ou différents et chacun représente un atome d'hydrogène, un groupe alkyle ou alcoxy à chaîne droite ayant 1 à 4 atomes de carbone, ou un groupe alkyle ou alcoxy ramifié ayant 3 à 4 atomes de carbone; x représente un nombre entier de 1 ou 2; et n représente un nombre entier de 0 ou 1.
PCT/JP2010/057708 2009-04-30 2010-04-30 Pneu WO2010126142A1 (fr)

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JP2009-110337 2009-04-30
JP2009110337 2009-04-30
JP2009-160393 2009-07-07
JP2009160393A JP5534726B2 (ja) 2009-04-30 2009-07-07 空気入りタイヤ

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004148986A (ja) * 2002-10-30 2004-05-27 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2005139082A (ja) * 2003-11-04 2005-06-02 Sanshin Chem Ind Co Ltd スルフェンアミド化合物
JP2005139239A (ja) * 2003-11-04 2005-06-02 Sanshin Chem Ind Co Ltd 天然油脂由来のアミンを使用した加硫促進剤およびゴム組成物
WO2009084617A1 (fr) * 2007-12-27 2009-07-09 Bridgestone Corporation Composition de caoutchouc
WO2009084538A1 (fr) * 2007-12-27 2009-07-09 Ouchi Shinko Chemical Industrial Co., Ltd. Sulfénamide, accélérateur de vulcanisation pour caoutchouc contenant le sulfénamide et procédé pour produire celui-ci
WO2010021316A1 (fr) * 2008-08-19 2010-02-25 株式会社ブリヂストン Composition de caoutchouc
WO2010021312A1 (fr) * 2008-08-19 2010-02-25 株式会社ブリヂストン Composition de caoutchouc
JP2010070746A (ja) * 2008-08-19 2010-04-02 Bridgestone Corp ゴム組成物

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173304A (ja) * 1986-01-25 1987-07-30 Yokohama Rubber Co Ltd:The ラジアルタイヤ
JPH0565370A (ja) * 1991-09-10 1993-03-19 Bridgestone Corp タイヤ
CA2121668A1 (fr) * 1994-03-09 1995-09-10 Thomas Joseph Segatta Composite de caoutchouc et de polyester pour la fabrication des cables et pneu contenant un composant de ce produit
CA2190301A1 (fr) * 1995-11-22 1997-05-23 Robert Joseph Noel Bernier Elastomere reticulable a base d'ethylene, d'alpha-olefine et de diene
JP3542057B2 (ja) * 1996-07-26 2004-07-14 株式会社ブリヂストン タイヤ補強用積層部材およびそれを適用した空気入りタイヤ
JP4260240B2 (ja) * 1997-04-04 2009-04-30 株式会社ブリヂストン 空気入りラジアルタイヤ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004148986A (ja) * 2002-10-30 2004-05-27 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2005139082A (ja) * 2003-11-04 2005-06-02 Sanshin Chem Ind Co Ltd スルフェンアミド化合物
JP2005139239A (ja) * 2003-11-04 2005-06-02 Sanshin Chem Ind Co Ltd 天然油脂由来のアミンを使用した加硫促進剤およびゴム組成物
WO2009084617A1 (fr) * 2007-12-27 2009-07-09 Bridgestone Corporation Composition de caoutchouc
WO2009084538A1 (fr) * 2007-12-27 2009-07-09 Ouchi Shinko Chemical Industrial Co., Ltd. Sulfénamide, accélérateur de vulcanisation pour caoutchouc contenant le sulfénamide et procédé pour produire celui-ci
WO2010021316A1 (fr) * 2008-08-19 2010-02-25 株式会社ブリヂストン Composition de caoutchouc
WO2010021312A1 (fr) * 2008-08-19 2010-02-25 株式会社ブリヂストン Composition de caoutchouc
JP2010070744A (ja) * 2008-08-19 2010-04-02 Bridgestone Corp ゴム組成物
JP2010070746A (ja) * 2008-08-19 2010-04-02 Bridgestone Corp ゴム組成物

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