JP2011089104A - タイヤ用ゴム組成物及び空気入りタイヤ - Google Patents
タイヤ用ゴム組成物及び空気入りタイヤ Download PDFInfo
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- JP2011089104A JP2011089104A JP2010085421A JP2010085421A JP2011089104A JP 2011089104 A JP2011089104 A JP 2011089104A JP 2010085421 A JP2010085421 A JP 2010085421A JP 2010085421 A JP2010085421 A JP 2010085421A JP 2011089104 A JP2011089104 A JP 2011089104A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 66
- 239000005060 rubber Substances 0.000 title claims abstract description 66
- 239000000203 mixture Substances 0.000 title claims abstract description 56
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011593 sulfur Substances 0.000 claims abstract description 41
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 41
- 229940125904 compound 1 Drugs 0.000 claims abstract description 22
- 229920003244 diene elastomer Polymers 0.000 claims abstract description 19
- 229940125782 compound 2 Drugs 0.000 claims abstract description 18
- ZEUAKOUTLQUQDN-UHFFFAOYSA-N 6-(dibenzylcarbamothioyldisulfanyl)hexylsulfanyl n,n-dibenzylcarbamodithioate Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)C(=S)SSCCCCCCSSC(=S)N(CC=1C=CC=CC=1)CC1=CC=CC=C1 ZEUAKOUTLQUQDN-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 37
- 238000004073 vulcanization Methods 0.000 claims description 33
- 244000043261 Hevea brasiliensis Species 0.000 claims description 21
- 125000004432 carbon atom Chemical group C* 0.000 claims description 21
- 229920003052 natural elastomer Polymers 0.000 claims description 21
- 229920001194 natural rubber Polymers 0.000 claims description 21
- 239000000377 silicon dioxide Substances 0.000 claims description 18
- 125000000217 alkyl group Chemical group 0.000 claims description 17
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- 125000003710 aryl alkyl group Chemical group 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 8
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical group C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 6
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- -1 methylnaphthyl group Chemical group 0.000 description 11
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- OROGKFYIPDTMOZ-UHFFFAOYSA-N 6-(dibutylcarbamothioyldisulfanyl)hexylsulfanyl n,n-dibutylcarbamodithioate Chemical compound CCCCN(CCCC)C(=S)SSCCCCCCSSC(=S)N(CCCC)CCCC OROGKFYIPDTMOZ-UHFFFAOYSA-N 0.000 description 2
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- 230000003712 anti-aging effect Effects 0.000 description 2
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- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
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- 230000003014 reinforcing effect Effects 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
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- 125000001424 substituent group Chemical group 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 2
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- UJPKMTDFFUTLGM-UHFFFAOYSA-N 1-aminoethanol Chemical compound CC(N)O UJPKMTDFFUTLGM-UHFFFAOYSA-N 0.000 description 1
- YZZWTUACUFQJLH-UHFFFAOYSA-N 2-(dibenzylcarbamothioyldisulfanyl)ethylsulfanyl n,n-dibenzylcarbamodithioate Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)C(=S)SSCCSSC(=S)N(CC=1C=CC=CC=1)CC1=CC=CC=C1 YZZWTUACUFQJLH-UHFFFAOYSA-N 0.000 description 1
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- DVNPFNZTPMWRAX-UHFFFAOYSA-N 2-triethoxysilylethanethiol Chemical compound CCO[Si](CCS)(OCC)OCC DVNPFNZTPMWRAX-UHFFFAOYSA-N 0.000 description 1
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- UKQAGEKYSWAMFA-UHFFFAOYSA-N 6-[bis(2-ethylhexyl)carbamothioyldisulfanyl]hexylsulfanyl n,n-bis(2-ethylhexyl)carbamodithioate Chemical compound CCCCC(CC)CN(CC(CC)CCCC)C(=S)SSCCCCCCSSC(=S)N(CC(CC)CCCC)CC(CC)CCCC UKQAGEKYSWAMFA-UHFFFAOYSA-N 0.000 description 1
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- GQWNEBHACPGBIG-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-[2-(1,3-benzothiazol-2-ylsulfanylamino)ethoxy]ethanamine Chemical compound C1=CC=C2SC(SNCCOCCNSC=3SC4=CC=CC=C4N=3)=NC2=C1 GQWNEBHACPGBIG-UHFFFAOYSA-N 0.000 description 1
- ILSQBBRAYMWZLQ-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-propan-2-ylpropan-2-amine Chemical compound C1=CC=C2SC(SN(C(C)C)C(C)C)=NC2=C1 ILSQBBRAYMWZLQ-UHFFFAOYSA-N 0.000 description 1
- GGYCZPMPPFOWSU-UHFFFAOYSA-N n-bis(n-propan-2-ylsulfanylanilino)phosphoryl-n-propan-2-ylsulfanylaniline Chemical compound C=1C=CC=CC=1N(SC(C)C)P(=O)(N(SC(C)C)C=1C=CC=CC=1)N(SC(C)C)C1=CC=CC=C1 GGYCZPMPPFOWSU-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004923 naphthylmethyl group Chemical group C1(=CC=CC2=CC=CC=C12)C* 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- IJAZLKCLYWUWRO-UHFFFAOYSA-N nonylsulfanyl N,N-dibenzylcarbamodithioate Chemical compound C(C1=CC=CC=C1)N(C(=S)SSCCCCCCCCC)CC1=CC=CC=C1 IJAZLKCLYWUWRO-UHFFFAOYSA-N 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- AICOOMRHRUFYCM-ZRRPKQBOSA-N oxazine, 1 Chemical compound C([C@@H]1[C@H](C(C[C@]2(C)[C@@H]([C@H](C)N(C)C)[C@H](O)C[C@]21C)=O)CC1=CC2)C[C@H]1[C@@]1(C)[C@H]2N=C(C(C)C)OC1 AICOOMRHRUFYCM-ZRRPKQBOSA-N 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 239000011297 pine tar Substances 0.000 description 1
- 229940068124 pine tar Drugs 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 235000005713 safflower oil Nutrition 0.000 description 1
- 239000003813 safflower oil Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000002600 sunflower oil Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- KLFNHRIZTXWZHT-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltrisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSCCC[Si](OCC)(OCC)OCC KLFNHRIZTXWZHT-UHFFFAOYSA-N 0.000 description 1
- JSXKIRYGYMKWSK-UHFFFAOYSA-N trimethoxy-[2-(2-trimethoxysilylethyltetrasulfanyl)ethyl]silane Chemical compound CO[Si](OC)(OC)CCSSSSCC[Si](OC)(OC)OC JSXKIRYGYMKWSK-UHFFFAOYSA-N 0.000 description 1
- JTTSZDBCLAKKAY-UHFFFAOYSA-N trimethoxy-[3-(3-trimethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CO[Si](OC)(OC)CCCSSSSCCC[Si](OC)(OC)OC JTTSZDBCLAKKAY-UHFFFAOYSA-N 0.000 description 1
- 239000002383 tung oil Substances 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
【解決手段】ジエン系ゴム100質量部に対して、1,6−ビス(N,N’−ジベンジルチオカルバモイルジチオ)ヘキサンに代表される構造を有するチオカルバミン酸誘導体化合物1を1〜15質量部、下記式(2)で表される化合物2を0.1〜5質量部含有し、上記化合物1と上記化合物2との含有比率(化合物1/化合物2)が1〜8であり、可溶性硫黄及び不溶性硫黄を含まないタイヤ用ゴム組成物。
(式中、R5〜R7は同一若しくは異なって、炭素数5〜12のアルキル基を表し、x及びyは同一若しくは異なって、2〜4の整数を表す。mは、0〜10の整数を表す。)
【選択図】なし
Description
本発明はまた、上記ゴム組成物を用いて作製した空気入りタイヤに関する。
なお、本発明では、他の架橋剤として過酸化物を添加してもよい。
なお、カーボンブラックのN2SAは、JIS K6217のA法によって求められる。
なお、カーボンブラックのDBP吸油量は、JIS K6217−4の測定方法によって求められる。
シリカのチッ素吸着比表面積は、ASTMD3037−81に準じてBET法で測定される値である。
ブタジエンゴム:宇部興産(株)製のBR150B
天然ゴム:TSR20
シリカ:デグッサ社製のウルトラシルVN3(N2SA:175m2/g)
シランカップリング剤:デグッサ社製のSi266(ビス(3−トリエトキシシリルプロピル)ジスルフィド)
カーボンブラック:キャボットジャパン(株)製のショウブラックN220(N2SA:125m2/g、DBP吸油量:115ml/100g)
オイル:出光興産(株)製のミネラルオイルPW−380
ワックス:大内新興化学工業(株)製のサンノックワックス
老化防止剤:大内新興化学工業(株)製のノクラック6C(N−1,3−ジメチルブチル−N’−フェニル−p−フェニレンジアミン)
ステアリン酸:日油(株)製のステアリン酸
酸化亜鉛:三井金属鉱業(株)製の亜鉛華1号
架橋剤1:ランクセス社製のKA9188(式(1)で表される化合物1:R1〜R4=ベンジル基、n=6)
架橋剤2:田岡化学工業(株)製のタッキロールV200(式(2)で表される化合物2)
架橋剤3:試作合成品(式(1)で表される化合物1:R1〜R4=ブチル基、n=6)
硫黄:鶴見化学(株)製の粉末硫黄(可溶性硫黄)
加硫促進剤(1):大内新興化学工業(株)製のノクセラーCZ(N−シクロヘキシル−2−ベンゾチアゾリルスルフェンアミド)
加硫促進剤(2):三新化学工業(株)製のサンセラーTBZTD:テトラベンジルチウラムジスルフィド
表1の配合に従って、バンバリーミキサーを用いて、硫黄及び加硫促進剤以外の薬品を投入して、150℃で3分間混練りした。その後、得られた混合物に対して、硫黄及び加硫促進剤を加え、オープンロールを用いて、約80℃の条件下で3分間混練りして、未加硫ゴム組成物を得た。
得られた未加硫ゴム組成物を170℃で15分間プレス加硫することにより、加硫ゴム組成物を作製した。
以下に示す方法により、得られた未加硫ゴム組成物、加硫ゴム組成物を評価し、結果を表1に示した。
得られた未加硫ゴム組成物について、JIS K6300に記載されている振動式加硫試験機(キュラストメーター)を用い、測定温度170℃で加硫試験を行って、時間とトルクとをプロットした加硫速度曲線を得た。加硫速度曲線のトルクの最小値をML、最大値をMH、その差(MH−ML)をMEとしたとき、ML+0.1MEに到達する時間t10(分)を読み取った。t10が短いと成型不良や、部材間の接着不良などの不具合が生じやすく、t10が長いと加硫缶を開けるまでの時間が長くなり、生産効率が低下する。
本件での適切なスコーチ時間(t10)は、2〜3(分)程度である。
LAT試験機(Laboratory Abration and Skid Tester)を用い、荷重120N、速度20km/h、スリップアングル5°の条件にて、各加硫ゴム試験片(加硫ゴム組成物)の容積損失量を測定した。比較例1の容積損失量を100とした指数で示した。指数が大きいほど耐摩耗性に優れている。
得られた加硫ゴム組成物について、JIS K 6253−1997「加硫ゴム及び熱可塑性ゴムの硬さ試験」に準じて、デュロメータ硬さ(タイプA)を測定した。
得られた加硫ゴム組成物について、ティ・エス・インスツルメント(株)製の粘弾性測定試験機を用いて、温度50℃、周波数10Hz、振幅1%におけるtanδを比較例1を100とした指数で示した。指数が大きいほどtanδが低く、省燃費性能に優れる。
JIS K6251に準じて、加硫サンプル(加硫ゴム組成物)からなる3号ダンベル型試験片を用いて引張試験を実施し、各試験片の破断強度(TB)を測定した。次に、加硫サンプルを80℃、192時間熱老化させた後のTBを測定した。下記式により、老化前後の破断強度(TB)の保持率を求めた。数値が高い方が熱老化によるゴム物性変化が小さく、耐熱老化性に優れる。
保持率(%)=熱老化後のTB/熱老化前のTB×100
Claims (7)
- ジエン系ゴム100質量部に対して、下記式(1)で表される化合物1を1〜15質量部、下記式(2)で表される化合物2を0.1〜5質量部含有し、
前記化合物1と前記化合物2との含有比率(化合物1/化合物2)が1〜8であり、
可溶性硫黄及び不溶性硫黄を含まないタイヤ用ゴム組成物。
- 更にスルフェンアミド系加硫促進剤を含有する請求項1記載のタイヤ用ゴム組成物。
- スルフェンアミド系加硫促進剤がN−シクロヘキシル−2−ベンゾチアゾリルスルフェンアミドである請求項2記載のタイヤ用ゴム組成物。
- 化合物1が1,6−ビス(N,N’−ジベンジルチオカルバモイルジチオ)ヘキサンである請求項1〜3のいずれかに記載のタイヤ用ゴム組成物。
- ジエン系ゴム100質量%中の天然ゴム及び改質天然ゴムの合計含有量が30〜100質量%である請求項1〜4のいずれかに記載のタイヤ用ゴム組成物。
- 更にシリカを含有する請求項1〜5のいずれかに記載のタイヤ用ゴム組成物。
- 請求項1〜6のいずれかに記載のゴム組成物を用いて作製した空気入りタイヤ。
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DE102010046351.5A DE102010046351A1 (de) | 2009-09-24 | 2010-09-23 | Kautschukzusammensetzung für Reifen und Luftreifen |
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Cited By (3)
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JP2012188537A (ja) * | 2011-03-10 | 2012-10-04 | Toyo Tire & Rubber Co Ltd | ゴム組成物及び空気入りタイヤ |
JP2013144797A (ja) * | 2011-12-20 | 2013-07-25 | Goodyear Tire & Rubber Co:The | ゴムトレッドを有するトラックタイヤ |
JP2019019250A (ja) * | 2017-07-19 | 2019-02-07 | 住友ゴム工業株式会社 | 重荷重タイヤのトレッド用ゴム組成物の製造方法 |
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US20130338296A1 (en) * | 2011-04-27 | 2013-12-19 | Sumitomo Rubber Industries, Ltd. | Rubber composition and pneumatic tire |
CN107531944B (zh) * | 2015-05-18 | 2020-08-04 | 横滨橡胶株式会社 | 轮胎用橡胶组合物 |
FR3068357A1 (fr) * | 2017-06-30 | 2019-01-04 | Compagnie Generale Des Etablissements Michelin | Compositions de caoutchouc ayant une bonne tenue au fluage |
JP7395124B2 (ja) * | 2019-03-01 | 2023-12-11 | 住友ゴム工業株式会社 | 空気入りタイヤ |
EP3868568A1 (en) | 2020-02-21 | 2021-08-25 | The Goodyear Tire & Rubber Company | Accelerator for the vulcanization of rubbery polymers |
EP4159483B1 (en) * | 2020-12-01 | 2024-04-10 | Sumitomo Rubber Industries, Ltd. | Tire |
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JP2012188537A (ja) * | 2011-03-10 | 2012-10-04 | Toyo Tire & Rubber Co Ltd | ゴム組成物及び空気入りタイヤ |
JP2013144797A (ja) * | 2011-12-20 | 2013-07-25 | Goodyear Tire & Rubber Co:The | ゴムトレッドを有するトラックタイヤ |
JP2019019250A (ja) * | 2017-07-19 | 2019-02-07 | 住友ゴム工業株式会社 | 重荷重タイヤのトレッド用ゴム組成物の製造方法 |
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JP4987095B2 (ja) | 2012-07-25 |
US20110071253A1 (en) | 2011-03-24 |
US8183327B2 (en) | 2012-05-22 |
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