WO2018021118A1 - Composition de caoutchouc - Google Patents

Composition de caoutchouc Download PDF

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Publication number
WO2018021118A1
WO2018021118A1 PCT/JP2017/026145 JP2017026145W WO2018021118A1 WO 2018021118 A1 WO2018021118 A1 WO 2018021118A1 JP 2017026145 W JP2017026145 W JP 2017026145W WO 2018021118 A1 WO2018021118 A1 WO 2018021118A1
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Prior art keywords
rubber composition
road roller
rubber
mass
parts
Prior art date
Application number
PCT/JP2017/026145
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English (en)
Japanese (ja)
Inventor
鈴木　賢司
Original Assignee
株式会社ブリヂストン
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Publication date
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Priority to JP2018529810A priority Critical patent/JPWO2018021118A1/ja
Publication of WO2018021118A1 publication Critical patent/WO2018021118A1/fr

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Classifications

    • 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
    • C08K3/04—Carbon
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • 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
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Definitions

  • the present invention relates to a rubber composition for road roller tires which has both swelling resistance and crack resistance and is excellent in wear resistance, cut resistance and heat resistance.
  • the road roller tire is used for asphalt rolling in road construction. Since it is exposed to high temperature heating during asphalt pavement, further crack resistance is required particularly in the tread portion.
  • Patent Document 1 a rubber composition comprising 30 to 70 parts by mass of a softening agent per 100 parts by mass of a rubber component containing a styrene-acrylonitrile-butadiene terpolymer produced by an emulsion polymerization method.
  • a road roller tire using at least a cap tread is disclosed.
  • rubber with improved characteristics is a prototype, is not a general-purpose product available as a commercial product, and is not a rubber composition that can be used in common in the tread part and side part. is there.
  • the present invention resides in the following (1) to (19).
  • a rubber composition for road roller tires comprising silica, 100 parts by mass of a rubber component, and 3 parts by mass or more of sulfur.
  • Rubber composition (9) The road roller tire according to any one of (1) to (8), wherein the silica content of the rubber composition is 15 parts by mass or more with respect to 100 parts by mass of the rubber component. Rubber composition. (10) The rubber composition for a road roller tire according to any one of (1) to (9), wherein the rubber composition contains carbon black. (11) The rubber composition for road roller tires according to any one of (1) to (10), wherein the rubber composition has a carbon black content higher than a silica content. (12) The rubber composition for road roller tires according to any one of (1) to (11), wherein the rubber composition satisfies a content of carbon black / a content of silica ⁇ 3. .
  • a rubber composition for road roller tires excellent in crack resistance and swelling resistance can be obtained by (1) to (3).
  • a rubber composition for road roller tires having improved crack resistance, wear resistance, cut resistance and low heat build-up can be obtained.
  • a rubber composition for road roller tires having further improved crack resistance and swelling resistance can be obtained.
  • a rubber composition for road roller tires having further improved crack resistance and low heat build-up can be obtained.
  • a rubber composition for road roller tires with improved cut resistance is obtained.
  • (15) to (17) a rubber composition for road roller tires having improved crack resistance, swelling resistance, abrasion resistance, and cut resistance can be obtained.
  • a road roller tire using the rubber composition of the resin layer according to the method of the present invention is obtained.
  • the rubber composition for road roller tires of the present invention can be used without particular limitation as long as it is a rubber component conventionally used for road roller tires.
  • styrene-butadiene rubber SBR may be mentioned, but other rubber components may be included, more than styrene-butadiene rubber may be included, and further, no styrene-butadiene rubber may be included. Good.
  • Other rubber components include natural rubber: NR, modified natural rubber that has been subjected to various treatments, synthetic rubbers such as diene, polyisoprene; IR, polybutadiene; BR, chloroprene; CR, butyl rubber; IIR, acrylonitrile -At least one rubber selected from butadiene rubber; NBR, ethylene-propylene-diene rubber; EPDM can be used, and natural rubber or diene-based synthetic rubber is preferably used, and natural rubber or polyisoprene rubber can be used. It is more preferable to use natural rubber.
  • natural rubber such as diene, polyisoprene; IR, polybutadiene; BR, chloroprene; CR, butyl rubber; IIR, acrylonitrile -At least one rubber selected from butadiene rubber; NBR, ethylene-propylene-diene rubber; EPDM can be used, and natural rubber or diene-based synthetic rubber is preferably used, and natural rubber
  • natural rubber When using natural rubber, it is preferably 20 parts by mass or more, more preferably 50 parts by mass or more, and particularly preferably 70 parts by mass or more with respect to 100 parts by mass of the entire rubber component.
  • the styrene content is preferably 45% or less, more preferably 40% or less.
  • the styrene-butadiene rubber has a low glass transition temperature; Tg. Specifically, Tg is preferably ⁇ 20 ° C. or lower, and particularly preferably ⁇ 30 ° C. or lower. Tg contributes to crack resistance as well as improved swelling resistance.
  • the names of compounding ingredients and the abbreviations such as NR and SBR of the defined compounding ingredients may be expressed as the number of parts by mass of the compounding ingredients in equations and inequalities.
  • Natural rubber NR and styrene-butadiene rubber; preferably satisfies the relationship of NR / SBR> 2 of SBR, and more preferably has a value of NR / SBR greater than 2 and 9 or less. By setting it as the said range, it is excellent in crack progress resistance, and it becomes possible to make crack progress resistance and swelling property compatible with high order.
  • the rubber composition for road roller tires of the present invention is characterized by compounding and vulcanizing 3 parts by mass or more of sulfur with respect to 100 parts by mass of the rubber component.
  • Sulfur for vulcanization can be appropriately selected and mixed from normal sulfur, insoluble sulfur, sulfur white, deoxidized sulfur, powdered sulfur, precipitated sulfur, colloidal sulfur, and rubbery sulfur.
  • ordinary sulfur or insoluble sulfur is used.
  • the amount of sulfur is 3 parts by mass, so the amount of sulfur is not so much increased.
  • a rubber composition excellent in swelling property is obtained.
  • the content of sulfur is preferably 3.5 to 4 parts by mass. Further, when the sulfur content is less than 3 parts by mass, various performances cannot be obtained sufficiently.
  • the rubber composition for road roller tires of the present invention is characterized by containing silica.
  • silica is a filler that is often used to improve grip properties, mainly wet grip properties.
  • grip properties mainly wet grip properties.
  • the performance is required for the purpose of use or the environment such as a road roller tire.
  • the rubber composition blended with silica is used in road roller tires where it is exposed to high temperatures in asphalt pavement and while applying oil such as light oil and release agent.
  • oil such as light oil and release agent.
  • the present inventors have found that it is suitable for the improvement of crack resistance and the swelling resistance that is inherently required for road roller tires in a special use environment.
  • blend there is no restriction
  • any commercially available product can be used, among which wet silica, dry silica, and colloidal silica are preferably used, and wet silica is particularly preferably used.
  • the nitrogen adsorption non-surface area of silica measured according to ISO 5794/1; N 2 SA is preferably 40 to 350 m 2 / g. Silica having N 2 SA in this range has an advantage that both rubber reinforcement and dispersibility in the rubber component can be achieved.
  • silica having N 2 SA in the range of 80 to 350 m 2 / g is more preferable, silica in the range of 120 to 350 m 2 / g is more preferable, and 150 to 220 m 2 / g is particularly preferable.
  • the above silica may be used individually by 1 type, and may be used in combination of 2 or more type.
  • Silica is usually compounded for the purpose of improving grip properties as described above, but since silica is a reinforcing filler in the first place, it is blended for the purpose of improving mechanical properties. It makes sense.
  • the compounding effect of silica is fully expressed, it is preferable to mix 10 parts by mass or more, and particularly preferably 15 parts by mass or more with respect to 100 parts by mass of the rubber component.
  • the upper limit is preferably less than 30 parts by mass, particularly preferably 25 parts by mass or less.
  • the carbon black is not particularly limited as long as it is a carbon black that can be used in an ordinary rubber composition, but it is preferable to select carbon black having a small particle size in consideration of low heat buildup. Specifically, grades of carbon black such as HAF, IISAF, ISAF, and SAF are preferable, and HAF is particularly preferable. Nitrogen adsorption specific surface area measured in accordance with JIS K 6217-2: 2001; N 2 SA is preferably 30 to 250 m 2 / g.
  • the carbon black may be used alone or in combination of two or more. Of course, it also serves as a reinforcing filler and contributes to the improvement of crack resistance, wear resistance, and cut resistance.
  • carbon black When blending carbon black, it is preferable to blend more parts by mass than silica. In addition, carbon black / silica ⁇ 3 is preferable, and 2.5 or less is more preferable. Abrasion resistance can be made into the favorable range by satisfy
  • the number of carbon black is preferably less than 60 parts by mass with respect to 100 parts by mass of the rubber component. Moreover, it is preferable that a compounding part number shall be 20 mass parts or more. If the amounts of silica and carbon black and the respective relationships are as described above, it is possible to obtain a rubber composition excellent in balance with low heat build-up as well as crack resistance.
  • silane coupling agent it is preferable to suppress it to 5% by mass or less of silica as compared with the compounding ratio of the silane coupling agent to normal silica. It is more preferably 3% by mass or less, and particularly preferably 1% by mass or less. If blending is not necessary, it is more preferable not to include a silane coupling agent. If it is the said range, cut resistance can be improved.
  • the silane coupling agent that can be used is preferably a compound selected from the group consisting of compounds represented by the following general formulas (I) to (III).
  • general formulas (I) to (III) will be described in order.
  • R 1 s when there are a plurality of R 1 s , they may be the same or different, and each of them may be a linear, cyclic or branched alkyl group having 1 to 8 carbon atoms, a linear or branched alkoxy group having 2 to 8 carbon atoms.
  • a substituent selected from an alkyl group and a silanol group and when there are a plurality of R 2 s , they may be the same or different and each is a linear, cyclic or branched alkyl group having 1 to 8 carbon atoms; 3 may be the same or different when there is a plurality, and each is a straight-chain or branched alkanediyl group having 1 to 8 carbon atoms.
  • p and r are not both 3 and may be the same or different, and each has an average value of 0 to 3.
  • the sulfur number a of the sulfide chain is 2 to 6 on average.
  • silane coupling agent represented by the general formula (I) include bis (3-triethoxysilylpropyl) tetrasulfide, bis (3-trimethoxysilylpropyl) tetrasulfide, and bis (3-methyldimethoxysilylpropyl).
  • Tetrasulfide bis (2-triethoxysilylethyl) tetrasulfide, bis (3-triethoxysilylpropyl) disulfide, bis (3-trimethoxysilylpropyl) disulfide, bis (3-methyldimethoxysilylpropyl) disulfide, bis (2-triethoxysilylethyl) disulfide, bis (3-triethoxysilylpropyl) trisulfide, bis (3-trimethoxysilylpropyl) trisulfide, bis (3-methyldimethoxysilylpropyl) trisulfide Bis (2-triethoxysilylethyl) trisulfide, bis (3-monoethoxydimethylsilylpropyl) tetrasulfide, bis (3-monoethoxydimethylsilylpropyl) trisulfide, bis (3-monoethoxydimethylsilylpropyl
  • R 4 represents a chlorine atom, a bromine atom, a hydrogen atom, or R 9 O— substituted with a monovalent hydrocarbon group having 1 to 18 carbon atoms; an alkoxy group, R 9 C ( ⁇ O) O—; carboxyl Group, R 9 R 10 C ⁇ NO—; oxymato group, R 9 R 10 CNO—, NR 9 R 10 ⁇ ; amino group, and polysiloxy group having a siloxy chain length of 2 to 5— (OSiR 9 R 10 ) h (OSiR 9 R 10 R 11 ).
  • R 9 , R 10 and R 11 are each a hydrogen atom or a monovalent hydrocarbon group having 1 to 18 carbon atoms, and h is an average value of 1 to 4.
  • R 5 is R 9 , a hydrogen atom or a monovalent hydrocarbon group having 1 to 18 carbon atoms
  • R 6 is R 4 , R 5 , a hydrogen atom or — [O (R 12 O) j ] 1/2 ⁇ It is a group.
  • R 12 is an alkanediyl group having 1 to 18 carbon atoms, and j is an integer of 1 to 4.
  • R 7 is a divalent hydrocarbon group having 1 to 18 carbon atoms
  • R 8 is a monovalent hydrocarbon group having 1 to 18 carbon atoms.
  • R 8 , R 9 , R 10 and R 11 may be the same or different and are preferably each a linear, cyclic or branched alkyl group or alkenyl group having 1 to 18 carbon atoms. And a group selected from the group consisting of an aryl group and an arylalkyl group.
  • R 5 is a monovalent hydrocarbon group having 1 to 18 carbon atoms, a group selected from the group consisting of a linear, cyclic or branched alkyl group, alkenyl group, aryl group and arylalkyl group
  • R 12 is preferably a linear, cyclic or branched alkanediyl group, and particularly preferably a linear one.
  • R 7 has, for example, a linear or branched alkanediyl group having 1 to 18 carbon atoms, an alkenediyl group having 2 to 18 carbon atoms, or a substituent such as a lower alkyl group on the ring. And a cycloalkanediyl group having 5 to 18 carbon atoms, a cycloalkylalkanediyl group having 6 to 18 carbon atoms, an arenediyl group having 6 to 18 carbon atoms, and an arylalkanediyl group having 7 to 18 carbon atoms. Can do.
  • R 7 is preferably an alkanediyl group having 1 to 6 carbon atoms, and particularly preferably a linear alkanediyl group such as a methanediyl group, an ethanediyl group, a propanediyl group, a butanediyl group, a pentanediyl group, or a hexanediyl group.
  • a linear alkanediyl group such as a methanediyl group, an ethanediyl group, a propanediyl group, a butanediyl group, a pentanediyl group, or a hexanediyl group.
  • Specific examples of the monovalent hydrocarbon group having 1 to 18 carbon atoms of R 5 , R 8 , R 9 , R 10 and R 11 in the general formula (II) include a methyl group, an ethyl group, and a 1-propyl group.
  • R 12 in the general formula (II) examples include a methanediyl group, an ethanediyl group, a propanediyl group, a butanediyl group, a pentanediyl group, a hexanediyl group, an octanediyl group, a decandiyl group, and a dodecandiyl group.
  • silane coupling agent represented by the general formula (II) include 3-hexanoylthiopropyltriethoxysilane, 3-octanoylthiopropyltriethoxysilane, 3-decanoylthiopropyltriethoxysilane, 3-lauroylthiopropyltriethoxysilane, 2-hexanoylthioethyltriethoxysilane, 2-octanoylthioethyltriethoxysilane, 2-decanoylthioethyltriethoxysilane, 2-lauroylthioethyltriethoxysilane, 3- Hexanoylthiopropyltrimethoxysilane, 3-octanoylthiopropyltrimethoxysilane, 3-decanoylthiopropyltrimethoxysilane, 3-decanoylthiopropyltrimethoxysilane,
  • R 13 s when there are a plurality of R 13 s , they may be the same or different, and each of them may be a linear, cyclic or branched alkyl group having 1 to 8 carbon atoms, a linear or branched alkoxy group having 2 to 8 carbon atoms.
  • a substituent selected from an alkyl group and a silanol group and when there are a plurality of R 14 s , they may be the same or different and each is a linear, cyclic or branched alkyl group having 1 to 8 carbon atoms;
  • 15 When there are a plurality, 15 may be the same or different, and each is a linear or branched alkanediyl group having 1 to 8 carbon atoms.
  • R 16 is selected from general formulas (—S—R 17 —S—), (—R 18 —S m1 —R 19 —) and (—R 20 —S m2 —R 21 —S m3 —R 22 —).
  • Divalent groups (R 17 to R 22 are each selected from a divalent hydrocarbon group having 1 to 20 carbon atoms, a divalent aromatic group, and a divalent organic group containing a hetero element other than sulfur and oxygen.
  • Each of m1, m2 and m3 is an average value of 1 or more and less than 4, and a plurality of k may be the same or different, and each of the average values is 1 to 6 , S, and t are average values of 0 to 3, respectively. However, both s and t are not 3.
  • silane coupling agent represented by the general formula (III) are all represented by an average composition formula, (C 2 H 5 O) 3 SiC 3 H 6 S 2 C 6 H 12 S 2 C 3 H 6 Si (OC 2 H 5) 3, (C 2 H 5 O) 3 SiC 3 H 6 S 2 C 10 H 20 S 2 C 3 H 6 Si (OC 2 H 5) 3, (C 2 H 5 O) 3 SiC 3 H 6 S 3 C 6 H 12 S 3 C 3 H 6 Si (OC 2 H 5) 3, (C 2 H 5 O) 3 SiC 3 H 6 S 4 C 6 H 12 S 4 C 3 H 6 Si (OC 2 H 5) 3, (C 2 H 5 O) 3 SiC 3 H 6 SC 6 H 12 S 2 C 6 H 12 SC 3 H 6 Si (OC 2 H 5) 3, (C 2 H 5 O) 3 SiC 3 H 6 SC 6 H 12 S 2 C 6 H 12 SC 3 H 6 Si (OC 2 H 5) 3, (C 2 H 5 O) 3 SiC 3 H 6 SC 6 H 12 S 2.5 C 6 H 12 SC 3 H 6 Si (OC
  • C 2 H 4 (CH 2 ) 2
  • C 3 H 6 (CH 2 ) 3
  • C 6 H 12 (CH 2 ) 6
  • C 10 H 20 (CH 2 ) 10 , respectively
  • the average composition means that the sulfur chain length varies and the number of sulfur is averaged.
  • the silane coupling agent represented by the general formula (III) can be produced, for example, by the method described in JP-A-2006-167919. In addition, commercially available products can be widely used.
  • rubber composition of the present invention In addition to the rubber composition of the present invention, other commonly used rubber chemicals such as zinc oxide, stearic acid, aromatic oil, wax, thermoplastic resin, vulcanization accelerator, and anti-aging agent may be blended.
  • other commonly used rubber chemicals such as zinc oxide, stearic acid, aromatic oil, wax, thermoplastic resin, vulcanization accelerator, and anti-aging agent may be blended.
  • M 2-mercaptobenzothiazole
  • DM dibenzothiazolyl disulfide
  • CZ N-cyclohexyl-2-benzothiazolylsulfenamide
  • thiazole vulcanization accelerator TT; tetramethylthiuram
  • examples include sulfide, TBzTD; tetrabenzylthiuram disulfide; TOT; thiuram vulcanization accelerator such as tetrakis (2-ethylhexyl) thiuram disulfide, and DPG; guanidine vulcanization accelerator such as diphenylguanidine.
  • the content of the vulcanization accelerator is 0.1 to 10 parts by weight, preferably 0.5 to 5.0 parts by weight, and more preferably 0.8 to 2.5 parts by weight with respect to 100 parts by weight of the rubber component. It is desirable to be a part.
  • Zinc oxide is used to adjust the effect of the vulcanization accelerator, but it is preferable to blend 5 parts by mass or more with respect to 100 parts by mass of the rubber component. When the blending amount of zinc oxide is within the above range, both crack resistance and swelling resistance are improved.
  • the rubber composition obtained by blending the various components as described above preferably has an elastic modulus after vulcanization crosslinking according to JIS K 7244; E ′ is 6 to 15 MPa.
  • the present invention is a rubber composition for road roller tires, as a natural application, it is necessary to have rigidity necessary for rolling and pressing the asphalt with the weight of the vehicle body during asphalt paving. Relative to the pursuit of ride comfort, the rigidity is more advantageous because of sufficient crack resistance that can withstand use even on rough and undeveloped rough roads. If it is 6 MPa or more, it can be said that the elastic modulus is suitable for the intended use. Of course, since the increase in rigidity is brittle, if the upper limit is 15 MPa or less, the elastic modulus is such that cracks do not occur in an unexpected situation.
  • the elastic modulus is more preferably 6 to 12 MPa, and particularly preferably 8 to 11 MPa.
  • Elastic modulus: 300% modulus: M300 in addition to E ′ is a physical property that should be within an appropriate range as the rubber composition for road roller tires of the present invention.
  • 300% modulus; M300 is preferably 11 to 15 MPa, and has excellent swelling resistance.
  • 300% modulus; M300 is more preferably in the range of 11 to 13 MPa, and crack resistance is also improved.
  • the rubber composition components as described above are kneaded by a kneader such as a Banbury mixer or a kneader, and are molded together with other members as a tread member or a side member to obtain a green tire, which is vulcanized and crosslinked.
  • a road roller tire having a rim diameter of 15 inches or more can be mainly manufactured. Even in the case of kneading or extrusion molding, the rubber composition of the present invention is excellent in processability.
  • Cut resistance was evaluated by hitting a steel blade from an arbitrary height with a pendulum type impact cut tester and measuring the depth of the scratch. The reciprocal of the obtained value was taken, and an index was displayed with the value of Comparative Example 5 in the following Table 1 as 100. It shows that it is excellent in cut resistance, so that a numerical value is large.
  • the examples satisfying the above conditions are swelling resistance, crack resistance, wear resistance, cut resistance, low heat generation. It is clear that the swelling resistance is particularly improved while balancing the five performance characteristics. If it sees individually, the improvement of Example 1 which satisfy
  • Examples 2 to 4 were improved in a balanced manner. From the comparison between Examples 3 and 4, it is better to evaluate the relationship between the blending amounts of silica and carbon black in a preferable relationship. Compared with Examples 6 and 7, it can be said that the balance of improvement is better when the main component is natural rubber.
  • the present invention even when exposed to high temperatures during rough road surfaces and asphalt pavement work, it has excellent crack resistance, so it can withstand use under harsh conditions. Even in the operation while spraying the release agent, since it is excellent in swelling resistance, it is possible to obtain a road roller tire in which workability does not deteriorate due to swelling deformation.

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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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne une composition de caoutchouc pour pneus de rouleau compresseur, qui est caractérisée en ce qu'elle comprend de la silice, 100 parties en masse d'un composant de caoutchouc et 3 parties en masse ou plus de soufre. Elle présente une excellente résistance au craquelage et une excellente résistance au gonflement, et peut être utilisée à la fois dans une partie de bande de roulement et dans une partie latérale.
PCT/JP2017/026145 2016-07-29 2017-07-19 Composition de caoutchouc WO2018021118A1 (fr)

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JP2018529810A JPWO2018021118A1 (ja) 2016-07-29 2017-07-19 ゴム組成物

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JP2016149842 2016-07-29
JP2016149843 2016-07-29
JP2016-149843 2016-07-29
JP2016-149842 2016-07-29

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02242835A (ja) * 1989-03-16 1990-09-27 Bridgestone Corp ロードローラー用タイヤ
JPH0782417A (ja) * 1993-09-10 1995-03-28 Sumitomo Rubber Ind Ltd タイヤローラー用トレッドゴム
JP2000118202A (ja) * 1998-10-19 2000-04-25 Bridgestone Corp ロードローラー用タイヤ
CN103642077A (zh) * 2013-11-28 2014-03-19 山东永泰化工有限公司 一种压路机用斜交轮胎胎侧胶

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02242835A (ja) * 1989-03-16 1990-09-27 Bridgestone Corp ロードローラー用タイヤ
JPH0782417A (ja) * 1993-09-10 1995-03-28 Sumitomo Rubber Ind Ltd タイヤローラー用トレッドゴム
JP2000118202A (ja) * 1998-10-19 2000-04-25 Bridgestone Corp ロードローラー用タイヤ
CN103642077A (zh) * 2013-11-28 2014-03-19 山东永泰化工有限公司 一种压路机用斜交轮胎胎侧胶

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