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WO2016208537A1 - Composition de caoutchouc et pneumatique obtenu au moyen de cette dernière - Google Patents

Composition de caoutchouc et pneumatique obtenu au moyen de cette dernière Download PDF

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Publication number
WO2016208537A1
WO2016208537A1 PCT/JP2016/068260 JP2016068260W WO2016208537A1 WO 2016208537 A1 WO2016208537 A1 WO 2016208537A1 JP 2016068260 W JP2016068260 W JP 2016068260W WO 2016208537 A1 WO2016208537 A1 WO 2016208537A1
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Prior art keywords
acid
rubber composition
copolymer
mass
parts
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Ceased
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PCT/JP2016/068260
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English (en)
Japanese (ja)
Inventor
祐介 田邊
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Yokohama Rubber Co Ltd
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Yokohama Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Publication of WO2016208537A1 publication Critical patent/WO2016208537A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C08K3/34—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
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • 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 and a pneumatic tire using the same.
  • silica is added to the “rubber composition containing a diene rubber” used in tire treads to reduce hysteresis loss (particularly tan ⁇ at high temperatures), thereby reducing heat generation and tire rolling resistance.
  • a method for reducing the above is known.
  • silica has low affinity with diene rubbers and high cohesiveness between silicas, silica is not dispersed even if silica is simply blended with diene rubbers, reducing the rolling resistance of tires. There was a problem that could not be obtained sufficiently.
  • silica dispersibility is also simply referred to as “silica dispersibility”
  • silane coupling agent [0027]
  • the present inventor examined the rubber composition disclosed in Patent Document 1, and the tire obtained from such a rubber composition was improved in low heat build-up, but introduced a silane coupling agent. As a result, it has been found that the hardness tends to decrease. In other words, it has become clear that the hardness does not necessarily satisfy the level required recently.
  • the present invention provides a rubber composition that is excellent in low heat buildup and high in hardness when made into a tire, and a pneumatic tire using the rubber composition in a tire tread. With the goal.
  • the present inventors have found that the above problems can be solved by containing a specific amount of powdered acid-modified polyolefin having an average particle diameter of less than a specific value, and have reached the present invention. That is, the present inventor has found that the above problem can be solved by the following configuration.
  • the content of the silica is 1 to 150 parts by mass with respect to 100 parts by mass of the diene rubber,
  • the present invention it is possible to provide a rubber composition that is excellent in low heat buildup and high in hardness when used as a tire, and a pneumatic tire using the rubber composition as a tire tread.
  • a numerical range represented by using “to” means a range including numerical values described before and after “to” as a lower limit value and an upper limit value.
  • the rubber composition of the present invention contains a diene rubber, silica, and an acid-modified polyolefin having an average particle size of less than 1000 ⁇ m.
  • the average particle diameter of the acid-modified polyolefin refers to the size of the minimum opening at which particles passing therethrough is 50% by mass or more in a sieving method using a sieve according to JIS Z8801: 2006.
  • the silica content is 1 to 150 parts by mass with respect to 100 parts by mass of the diene rubber
  • the acid-modified polyolefin content is 1 to 30 parts by mass with respect to 100 parts by mass of the diene rubber. is there. Since the rubber composition of the present invention has such a configuration, it is considered that a rubber composition having excellent low heat buildup and high hardness when formed into a tire could be formed.
  • the acid-modified polyolefin has a mean particle size of less than 1000 ⁇ m and is made into a powder form by reducing the particle size, so that the incorporation of the acid-modified polyolefin into the rubber component is improved and the acid groups of the acid-modified polyolefin have an affinity with it. It is presumed that high hardness was obtained while excellent high low heat generation property (low rolling resistance) because high-silica silica was also more uniformly dispersed in the rubber component. The above effect is particularly remarkable when acid-modified polyolefin is used as a copolymer, and high hardness can be obtained while being more excellent due to low exothermic property (low rolling resistance). Below, each component which the rubber composition of this invention contains is demonstrated in detail.
  • the diene rubber contained in the rubber composition of the present invention is not particularly limited as long as it has a double bond in the main chain. Specific examples thereof include natural rubber (NR), isoprene rubber (IR), butadiene. Rubber (BR), acrylonitrile-butadiene rubber (NBR), aromatic vinyl-conjugated diene copolymer rubber [for example, styrene-butadiene rubber (SBR), styrene-isoprene rubber, styrene-butadiene-isoprene rubber (SBIR), styrene- Isoprene rubber (SIR), styrene-isoprene-butadiene rubber (SIBR)] and the like.
  • NR natural rubber
  • IR isoprene rubber
  • BR acrylonitrile-butadiene rubber
  • NBR acrylonitrile-butadiene rubber
  • the diene rubber is a derivative in which the end or side chain of each rubber is modified (modified) with an amino group, an amide group, a silyl group, an alkoxy group, a carboxy group, a hydroxy group, an epoxy group, or the like. Also good.
  • the weight average molecular weight of the aromatic vinyl-conjugated diene copolymer rubber is not particularly limited, but in addition to the above-mentioned viewpoint, it is preferably 900,000 to 2,000,000 from the viewpoint of abrasion resistance, More preferably, it is ⁇ 1.8 million.
  • the weight average molecular weight (Mw) is measured in terms of standard polystyrene by gel permeation chromatography (GPC) using tetrahydrofuran as a solvent.
  • the aromatic vinyl-conjugated diene copolymer rubber can further reduce the heat generation, and from the viewpoint of the balance between the low heat generation property and the wet grip performance,
  • the content is preferably 100% by mass, more preferably 20 to 90% by mass.
  • the aromatic vinyl-conjugated diene copolymer rubber contains 20 to 50% by mass of aromatic vinyl from the viewpoint of a balance between low heat build-up and wet grip performance, and the amount of vinyl bonds in the conjugated diene. Is preferably contained in an amount of 10 to 65% by mass.
  • the silica which the rubber composition of this invention contains is not specifically limited,
  • Specific examples of the silica include fumed silica, calcined silica, precipitated silica, pulverized silica, fused silica, colloidal silica, and the like. These may be used alone or in combination of two or more. You may use together.
  • the silica preferably has a CTAB adsorption specific surface area of 50 to 300 m 2 / g, more preferably 80 to 250 m 2 / g, from the viewpoint of suppressing silica aggregation.
  • the CTAB adsorption specific surface area was determined by measuring the amount of n-hexadecyltrimethylammonium bromide adsorbed on the silica surface in accordance with JIS K6217-3: 2001 “Part 3: Determination of specific surface area—CTAB adsorption method”. Value.
  • the content of the silica is 1 to 150 parts by weight, preferably 10 to 120 parts by weight, and preferably 20 to 100 parts by weight with respect to 100 parts by weight of the diene rubber. More preferred.
  • the acid-modified polyolefin contained in the rubber composition of the present invention is a modified polymer obtained by modifying a polyolefin with an unsaturated carboxylic acid having an average particle size of less than 1000 ⁇ m.
  • the average particle size of the acid-modified polyolefin is the minimum opening size in which particles passing therethrough are 50% by mass or more in a sieving method using a sieve in accordance with JIS Z8801: 2006. Say.
  • the average particle diameter of the acid-modified polyolefin is preferably 800 ⁇ m or less, and more preferably 200 to 700 ⁇ m, from the reason that the hardness becomes better while making the low heat build-up good. Although a minimum in particular is not restrict
  • a polyolefin having at least one repeating unit formed from a monomer selected from the group consisting of ethylene and ⁇ -olefin is preferable from the viewpoint of excellent low heat build-up and excellent workability.
  • the ⁇ -olefin include propylene, 1-butene and 1-octene.
  • the polyolefin may be a homopolymer (homopolymer) or a copolymer having these repeating units.
  • the present invention is preferably a copolymer having two or more repeating units formed from a monomer selected from the group consisting of ethylene and ⁇ -olefin, and at least ethylene It preferably contains a repeating unit formed from
  • polyolefin As the polyolefin constituting the skeleton of the acid-modified polyolefin, for example, Homopolymers such as polypropylene, polybutene, polyoctene; Propylene / ethylene copolymer, propylene / 1-butene copolymer, propylene / 1-hexene copolymer, propylene / 4-methyl-1-pentene copolymer, propylene / 1-octene copolymer, propylene / 1 -Decene copolymer, propylene / 1,4-hexadiene copolymer, propylene / dicyclopentadiene copolymer, propylene / 5-ethylidene-2-norbornene copolymer, propylene / 2,5-norbornadiene copolymer, Propylene / 5-ethylidene-2-norbornene copolymer, 1-oc
  • examples of the unsaturated carboxylic acid that modifies the above-described polyolefin include maleic acid, fumaric acid, acrylic acid, crotonic acid, methacrylic acid, itaconic acid, or acid anhydrides of these acids. .
  • maleic anhydride, maleic acid, and acrylic acid are preferably used, and maleic anhydride is more preferable.
  • the acid modification amount (% by mass) in the acid-modified polyolefin is not particularly limited, but is usually 0.1 to 10% by mass, preferably 0.2 to 5% by mass.
  • the acid-modified polyolefin may be produced by a usual method, for example, a method for graft polymerization of an unsaturated carboxylic acid to the polyolefin under the usual conditions, for example, stirring under heating, or a commercially available product. May be used.
  • Examples of commercially available products include maleic anhydride-modified propylene / ethylene copolymers such as Tuffmer MA8510 (manufactured by Mitsui Chemicals) and MP0620 (manufactured by Mitsui Chemicals); maleic anhydride modified such as Tuffmer MH7020 (manufactured by Mitsui Chemicals) And ethylene 1-butene copolymer; maleic anhydride-modified polypropylene such as Admer QE060 (manufactured by Mitsui Chemicals); and maleic anhydride-modified polyethylene such as Modic H511 (manufactured by Mitsubishi Chemical).
  • maleic anhydride-modified propylene / ethylene copolymers such as Tuffmer MA8510 (manufactured by Mitsui Chemicals) and MP0620 (manufactured by Mitsui Chemicals); maleic anhydride modified such as Tuffmer MH7020 (manufactured by Mits
  • the content of the acid-modified polyolefin is 1 to 30 parts by weight, preferably 1 to 25 parts by weight, based on 100 parts by weight of the diene rubber, and 3 to 20 parts by weight. Is more preferable.
  • the rubber composition of the present invention may contain a silane coupling agent.
  • the said silane coupling agent is not specifically limited,
  • silane coupling agent examples include bis (3-triethoxysilylpropyl) tetrasulfide, bis (3-triethoxysilylpropyl) trisulfide, bis (3-triethoxysilylpropyl) disulfide, Bis (2-triethoxysilylethyl) tetrasulfide, bis (3-trimethoxysilylpropyl) tetrasulfide, bis (2-trimethoxysilylethyl) tetrasulfide, 3-mercaptopropyltrimethoxysilane, 3-mercaptopropyltriethoxy Silane, 2-mercaptoethyltrimethoxysilane, 2-mercaptoethyltriethoxysilane, 3-trimethoxysilylpropyl-N, N-dimethylthiocarbamoyl tetrasulfide, 3-triethoxysilylpropyl-N, N- Me
  • silane coupling agent other than the above examples include ⁇ -mercaptopropyltriethoxysilane, 3- [ethoxybis (3,6,9,12,15-pentaoxaoctacosan-1-yloxy), and the like.
  • Silyl] -1-propanethiol and other mercapto silane coupling agents 3-octanoylthiopropyltriethoxysilane and other thiocarboxylate silane coupling agents; 3-thiocyanate propyltriethoxysilane and other thiocyanate silane cups Ring agents; and the like.
  • bis- (3-triethoxysilylpropyl) tetrasulfide and / or bis- (3-triethoxysilylpropyl) disulfide is preferably used from the viewpoint of reinforcing effect.
  • Si75 [bis- (3-triethoxysilylpropyl) disulfide; manufactured by Evonik Degussa] and the like can be mentioned.
  • the content thereof is preferably 1 part by mass or more and more preferably 1 to 10 parts by mass with respect to 100 parts by mass of the diene rubber.
  • the content of the silane coupling agent is preferably 0.1 to 20 parts by mass, and more preferably 0.5 to 15 parts by mass with respect to 100 parts by mass of the silica.
  • the rubber composition of the present invention preferably contains carbon black.
  • the carbon black include furnace carbon blacks such as SAF, ISAF, HAF, FEF, GPE, and SRF. These may be used alone or in combination of two or more. May be.
  • the carbon black preferably has a nitrogen adsorption specific surface area (N 2 SA) of 10 to 300 m 2 / g, preferably 20 to 200 m 2 / g, from the viewpoint of processability when mixing the rubber composition. More preferably.
  • N 2 SA is a value obtained by measuring the amount of nitrogen adsorbed on the carbon black surface according to JIS K 6217-2: 2001 “Part 2: Determination of specific surface area—nitrogen adsorption method—single point method”. .
  • the content is preferably 1 to 100 parts by mass, and more preferably 5 to 80 parts by mass with respect to 100 parts by mass of the diene rubber.
  • the rubber composition of the present invention comprises a filler such as calcium carbonate; a chemical foaming agent such as a hollow polymer; a vulcanizing agent such as sulfur; a sulfenamide-based, guanidine-based, thiazole-based, thiourea-based, and thiuram.
  • Vulcanization accelerators such as zinc oxide, vulcanization accelerators such as stearic acid, waxes, aroma oils, paraphenylenediamines (for example, N, N'-di-2-naphthyl-p-phenylenediamine, N 1,3-dimethylbutyl-N'-phenyl-p-phenylenediamine, etc.) and ketone-amine condensates (eg 2,2,4-trimethyl-1,2-dihydroquinoline, etc.)
  • Various other additives generally used in rubber compositions for tires such as an agent; a plasticizer; and the like can be blended. As long as the amount of these additives is not contrary to the object of the present invention, a conventional general amount can be used.
  • the inhibitor may be added in an amount of 0.5 to 5 parts by mass, the wax 1 to 10 parts by mass, and the aroma oil 5 to 30 parts by mass.
  • the method for producing the rubber composition of the present invention is not particularly limited, and examples thereof include a method of kneading the above-described components using a known method and apparatus (for example, a Banbury mixer, a kneader, a roll, etc.). It is done.
  • a known method and apparatus for example, a Banbury mixer, a kneader, a roll, etc.
  • the rubber composition of the present invention contains sulfur or a vulcanization accelerator
  • components other than sulfur and the vulcanization accelerator are first mixed at a high temperature and cooled, and then the sulfur or vulcanization accelerator is mixed. Is preferred.
  • the acid-modified polyolefin is in the form of a powder having an average particle size of less than 1000 ⁇ m, heating is performed at a temperature equal to or higher than the melting point of the acid-modified polyolefin that is normally required when mixing and kneading each component. There is no need.
  • the powdery acid-modified polyolefin can be incorporated into the rubber component due to the heat history when kneading the diene rubber and silica.
  • the acid-modified polyolefin is in the form of a powder having an average particle diameter of less than 1000 ⁇ m, the components can be mixed and the acid-modified polyolefin can be mixed later.
  • the rubber composition of the present invention can be vulcanized or crosslinked under conventionally known vulcanization or crosslinking conditions.
  • the pneumatic tire of the present invention (hereinafter also simply referred to as “the tire of the present invention”) is a pneumatic tire using the above-described rubber composition of the present invention as a constituent (rubber) member.
  • the constituent member using the rubber composition of the present invention is not particularly limited, and examples thereof include a tire tread portion, a sidewall portion, a bead portion, a belt layer covering, a carcass layer covering, an inner liner, etc.
  • the tire tread portion is preferable.
  • FIG. 1 shows a schematic partial cross-sectional view of a tire representing an example of an embodiment of the tire of the present invention, but the tire of the present invention is not limited to the embodiment shown in FIG.
  • symbol 1 represents a bead part
  • symbol 2 represents a sidewall part
  • symbol 3 represents the tread part comprised from the rubber composition of this invention.
  • a carcass layer 4 in which fiber cords are embedded is mounted between the pair of left and right bead portions 1, and the end of the carcass layer 4 extends from the inside of the tire to the outside around the bead core 5 and the bead filler 6. Wrapped and rolled up.
  • a belt layer 7 is disposed over the circumference of the tire on the outside of the carcass layer 4.
  • the rim cushion 8 is arrange
  • an inner liner 9 is disposed on the inner surface of the tire in order to prevent air filled in the tire from leaking outside the tire.
  • the tire of the present invention when used in a tire tread portion, the tire of the present invention can achieve both excellent low heat generation and hardness, and is excellent in steering stability.
  • the tire of the present invention is vulcanized or cured at a temperature corresponding to, for example, the type of diene rubber, vulcanization or crosslinking agent, vulcanization or crosslinking accelerator used in the rubber composition of the present invention, and the blending ratio thereof. It can manufacture by bridge
  • Pulverized acid-modified polyolefin 4 (Tuffmer MH7020 (commercial product), manufactured by Mitsui Chemicals, Inc.) having an average particle diameter of 2000 ⁇ m is pulverized using a pulverizer, whereby powdered acid-modified polyolefin 1 to 3 were prepared respectively.
  • the average particle diameters of the acid-modified polyolefins 1 to 3 were 300 ⁇ m, 500 ⁇ m, and 800 ⁇ m, respectively.
  • the method for obtaining the average particle size is as described above.
  • Examples 1 to 4 and Comparative Examples 1 and 2 Production of Rubber Composition> The components shown in the following table were blended in the proportions (parts by mass) shown in the table. Specifically, first of all the components shown in the table below, excluding sulfur and vulcanization accelerator, are kneaded for 5 minutes using a 1.7 liter closed Banbury mixer and then cooled to room temperature. A master batch was obtained. Furthermore, using an open roll, sulfur and a vulcanization accelerator were mixed and kneaded into the obtained master batch to obtain a rubber composition.
  • S-SBR solution polymerized styrene butadiene rubber, vinyl content 70% by weight, non-oil-extended product (Nipol NS116, manufactured by Nippon Zeon Co., Ltd.)
  • -BR Nipol BR 1220 (manufactured by Nippon Zeon)
  • Acid-modified polyolefin prepared above 1 Maleic anhydride-modified ethylene / 1-butene copolymer, average particle size 300 ⁇ m (Tuffmer MH7020, manufactured by Mitsui Chemicals)
  • Acid-modified polyolefin 2 prepared above: Maleic anhydride-modified ethylene / 1-butene copolymer, average particle size 500 ⁇ m (Tuffmer MH7020, manufactured by Mitsui Chemicals)
  • Acid-modified polyolefin 3 prepared above: Maleic anhydride-modified ethylene / 1-butene copolymer, average particle size 800 ⁇ m (Tuffmer MH70)
  • Comparative Example 1 in which no acid-modified polyolefin is used and Comparative Example 2 in which an acid-modified polyolefin having an average particle size of 1000 ⁇ m or more is used.
  • Examples 1 to 4 using acid-modified polyolefin having an average particle size of less than 1000 ⁇ m showed high hardness.
  • Examples 1 to 3 using an olefin copolymer are more preferable than Example 4 using a homopolymer as the acid-modified polyolefin.
  • a further excellent low heat generation can be achieved.

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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)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention aborde le problème consistant à fournir : une composition de caoutchouc qui permet d'obtenir des pneus excellents en termes de propriété de faible accumulation de chaleur et parviennent à avoir une dureté élevée ; et un pneumatique comprenant une bande de roulement formée à partir de la composition de caoutchouc. La composition de caoutchouc selon la présente invention comprend un caoutchouc à base de diène, de la silice, et une polyoléfine modifiée par un acide ayant un diamètre moyen de particule inférieur à 1 000 µm, la silice étant contenue en une quantité de 1 à 150 parties en masse pour 100 parties en masse du caoutchouc à base de diène et la polyoléfine modifiée par un acide est contenue en une quantité de 1 à 30 parties en masse pour 100 parties en masse du caoutchouc à base de diène. [Le diamètre moyen de particule est la taille d'ouverture du tamis le plus fin à travers lequel 50 % des particules ou plus passent dans un procédé de tamisage à l'aide de tamis conformes à la Norme JIS Z8801:2006.]
PCT/JP2016/068260 2015-06-25 2016-06-20 Composition de caoutchouc et pneumatique obtenu au moyen de cette dernière Ceased WO2016208537A1 (fr)

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JP2015-127249 2015-06-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018145239A (ja) * 2017-03-02 2018-09-20 横浜ゴム株式会社 タイヤ用ゴム組成物及び空気入りタイヤ
JP2021523527A (ja) * 2018-05-10 2021-09-02 セルガード エルエルシー 電池セパレーター、被覆された電池セパレーター、電池及び関連する方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018180612A1 (fr) * 2017-03-29 2018-10-04 三井化学株式会社 Composition de caoutchouc et procédé de production de ladite composition
JP7006046B2 (ja) * 2017-09-08 2022-02-10 横浜ゴム株式会社 ゴム組成物及び空気入りタイヤ
JP7006048B2 (ja) * 2017-09-08 2022-02-10 横浜ゴム株式会社 ゴム組成物及び空気入りタイヤ
WO2020116389A1 (fr) * 2018-12-03 2020-06-11 Jsr株式会社 Composition polymère, polymère réticulé et pneumatique

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JP2001335664A (ja) * 2000-05-25 2001-12-04 Bridgestone Corp タイヤトレッド用ゴム組成物及びこれを用いた空気入りタイヤ
JP2002121326A (ja) * 2000-10-19 2002-04-23 Bridgestone Corp ゴム組成物及びこれを用いたタイヤ
JP2002155164A (ja) * 2000-11-21 2002-05-28 Bridgestone Corp ゴム組成物およびそれを用いた空気入りタイヤ
JP2002173557A (ja) * 2000-09-29 2002-06-21 Ube Ind Ltd 樹脂粒子充填ゴム組成物及びその製造方法
JP2006290986A (ja) * 2005-04-08 2006-10-26 Bridgestone Corp ゴム組成物及びそれを用いたタイヤ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001335664A (ja) * 2000-05-25 2001-12-04 Bridgestone Corp タイヤトレッド用ゴム組成物及びこれを用いた空気入りタイヤ
JP2002173557A (ja) * 2000-09-29 2002-06-21 Ube Ind Ltd 樹脂粒子充填ゴム組成物及びその製造方法
JP2002121326A (ja) * 2000-10-19 2002-04-23 Bridgestone Corp ゴム組成物及びこれを用いたタイヤ
JP2002155164A (ja) * 2000-11-21 2002-05-28 Bridgestone Corp ゴム組成物およびそれを用いた空気入りタイヤ
JP2006290986A (ja) * 2005-04-08 2006-10-26 Bridgestone Corp ゴム組成物及びそれを用いたタイヤ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018145239A (ja) * 2017-03-02 2018-09-20 横浜ゴム株式会社 タイヤ用ゴム組成物及び空気入りタイヤ
JP2021523527A (ja) * 2018-05-10 2021-09-02 セルガード エルエルシー 電池セパレーター、被覆された電池セパレーター、電池及び関連する方法
JP7598762B2 (ja) 2018-05-10 2024-12-12 セルガード エルエルシー 被覆された電池セパレーター

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