JP6193841B2 - 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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- JP6193841B2 JP6193841B2 JP2014250111A JP2014250111A JP6193841B2 JP 6193841 B2 JP6193841 B2 JP 6193841B2 JP 2014250111 A JP2014250111 A JP 2014250111A JP 2014250111 A JP2014250111 A JP 2014250111A JP 6193841 B2 JP6193841 B2 JP 6193841B2
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- rubber composition
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- QPPXVBLDIDEHBA-UHFFFAOYSA-N trimethoxy(3-nitropropyl)silane Chemical compound CO[Si](OC)(OC)CCC[N+]([O-])=O QPPXVBLDIDEHBA-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
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- WUMASLCNJBRHDA-UHFFFAOYSA-N trimethoxy-[4-(4-trimethoxysilylbutyltetrasulfanyl)butyl]silane Chemical compound CO[Si](OC)(OC)CCCCSSSSCCCC[Si](OC)(OC)OC WUMASLCNJBRHDA-UHFFFAOYSA-N 0.000 description 1
- GSZUEPNJCPXEGU-UHFFFAOYSA-N trimethoxy-[4-(4-trimethoxysilylbutyltrisulfanyl)butyl]silane Chemical compound CO[Si](OC)(OC)CCCCSSSCCCC[Si](OC)(OC)OC GSZUEPNJCPXEGU-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
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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
- B60C1/0025—Compositions of the sidewalls
-
- 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
- C08K3/02—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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
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- 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
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
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- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
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- 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
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- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/04—Polysulfides
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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
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Description
なお、本明細書において、カーボンブラックのチッ素吸着比表面積は、JIS K 6217−2:2001によって求められる。
具体的には、シリカの含有量は、ゴム成分100質量部に対して、1〜5質量部である。1質量部未満では、スコーチの抑制効果や破壊強度の改善効果が充分に得られないおそれがある。5質量部を超えると、スコーチ時間が長くなり過ぎる(架橋が弱くなる)ため、加硫後物性が悪化する傾向がある。
なお、シリカのN2SAは、ASTM D3037−93に準じてBET法で測定される値である。
すなわち、前記成分を配合したゴム組成物を、未加硫の段階でサイドウォール、クリンチ、ウイング等の形状にあわせて押出し加工し、他のタイヤ部材とともに、タイヤ成型機上にて通常の方法で成形することにより、未加硫タイヤを形成できる。この未加硫タイヤを加硫機中で加熱加圧することによりタイヤが得られる。
NR:RSS#3
BR1:日本ゼオン社製のBR1250H(リチウム開始剤を用いて重合したスズ変性BR、ビニル含量:10〜13質量%、Mw/Mn:1.5、スズ原子の含有量:250ppm)
BR2:宇部興産(株)製のVCR617(SPB含有BR、SPBの含有量:17質量%、SPBの融点:200℃)
BR3:宇部興産(株)製のBR150B(シス含量:97質量%)
カーボンブラック1:キャボットジャパン社製のショウブラックN220(N2SA:111m2/g)
カーボンブラック2:キャボットジャパン社製のショウブラックN550(N2SA:42m2/g)
シリカ:エボニックデグッサ社製のウルトラジルVN3(N2SA:175m2/g)
ワックス:大内新興化学工業(株)製のサンノックワックス
オイル:出光興産(株)製のプロセスオイルPW−32(パラフィン系プロセスオイル)
界面活性剤1:三洋化成工業社製のイオネットDO600(主成分が、式(2)のR2及びR3:−C17H33、式(2)のe:12である化合物)
界面活性剤2:三洋化成工業社製のイオネットPO600(主成分が、式(1)のR1:−C17H33、式(1)のd:12である化合物)
界面活性剤3:三洋化成工業社製のニューポールPE−64(プルロニック型非イオン界面活性剤(PEG/PPG−25/30コポリマー)(上記式(I)のa+c:25、b:30))。
界面活性剤4:三洋化成工業社製のニューポールPE−74(プルロニック型非イオン界面活性剤(PEG/PPG−30/35コポリマー)(上記式(I)のa+c:30、b:35))。
界面活性剤5:関東化学(株)製のモノステアリン酸ポリオキシエチレンソルビタン
界面活性剤6:関東化学(株)製のトリオレイン酸ポリオキシエチレンソルビタン
界面活性剤7:関東化学(株)製のポリオキシエチレンドデシルエーテル
界面活性剤8:東京化成工業(株)製のエチレングリコールジブチルエーテル
老化防止剤1: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
硫黄:鶴見化学工業(株)製の粉末硫黄
V200:田岡化学工業(株)製のタッキロールV200(アルキルフェノール・塩化硫黄縮合物)
酸化亜鉛:三井金属鉱業(株)製の亜鉛華1号
加硫促進剤:大内新興化学社製のノクセラーNS(N−tert−ブチル−2−ベンゾチアゾリルスルフェンアミド)
JIS K 6300に準じて、130℃で所定の未加硫ゴム組成物のスコーチタイム(t10)を測定した。測定結果を、基準比較例を100として、下記計算式により指数表示した。指数が大きいほどスコーチタイムが長く、指数は100以上120未満を目標とした。
(スコーチタイム指数)=(基準比較例のスコーチタイム)/(各配合のスコーチタイム)×100
JIS K6253に準拠し、25℃の温度で硬度計を用いて各加硫ゴム組成物の硬度を測定(ショア−A測定)し、基準比較例の硬度を100、92とした指数(各配合の硬度/基準比較例の硬度×100)を計算した。指数が大きいほど、操縦安定性に優れることを示す。なお、硬度指数は90以上を目標とした。
各加硫ゴム組成物から3号ダンベル型を用いて試験片を作成し、JIS K 6251「加硫ゴム及び熱可塑性ゴム−引張特性の求め方」に準じて、室温にて引張試験を実施し、破断時伸びEB(%)を測定し、基準比較例のEBを100とした指数(各配合のEB/基準比較例のEB×100)を計算した。指数が大きいほど、破壊強度に優れることを示す。なお、EB指数は100以上を目標とした。
各加硫ゴム組成物から作成した試験片について、粘弾性スペクトロメーターVES((株)岩本製作所製)を用いて、温度70℃、初期歪み10%、動歪み±1%の条件下で、tanδを測定し、基準比較例のtanδを100として、下記計算式により指数表示した。指数が小さいほど、転がり抵抗特性(低燃費性)が優れている。なお、転がり抵抗指数は、102以下を目標とした。
(転がり抵抗指数)=(各配合のtanδ)/(基準比較例のtanδ)×100
JIS K 6259「加硫ゴムおよび熱可塑性ゴム−耐オゾン性の求め方」に準じて、得られた加硫ゴム組成物から所定のサイズの試験片を作製し、動的オゾン劣化試験を行った。往復運動の周波数0.5±0.025Hz、オゾン濃度50±5pphm、試験温度40℃、引張歪み20±2%の条件下で、48時間試験した後の亀裂(クラックの発生の有無)の状態を観察することで、耐オゾン性を評価した。なお、評価方法は、JIS K 6259に記載の方式にしたがい、亀裂の数と大きさから指数化した数値を、耐オゾン性の指標とした。基準比較例の指標を100として、指数が大きいほど亀裂の数が少なく、亀裂の大きさが小さく、耐オゾン性に優れていることを示す。なお、耐オゾン性指数は98以上を目標とした。
耐オゾン性試験を終えたサンプルを(株)ミノルタ製色彩色差度計(CR−310)を用い、a値、b値を求めた(L*a*b*表色系)。指標を(a2+b2)−0.5とし、基準比較例の指標を100とした指数(各配合の指標/基準比較例の指標×100)を計算した。指数が大きいほど、変色が少なく、耐変色性に優れることを示す。なお、耐変色性指数は100以上を目標とした。
耐オゾン性試験を終えたサンプルを屋外に持ち出し、下記指標にて外観評価を行った。
◎基準比較例より黒く、光沢がある
○基準比較例より黒く、やや光沢がある
△基準比較例と同等の茶色
×基準比較例より茶色い
Claims (7)
- ブタジエンゴム、天然ゴム、及びイソプレンゴムの合計含有量がゴム成分100質量%中90質量%以上であり、
硫黄と、下記式(1)及び/又は下記式(2)で表される非イオン界面活性剤、並びにプルロニック型非イオン界面活性剤からなる群より選択される少なくとも1種の非イオン界面活性剤とを含み、
ゴム成分100質量部に対して、カーボンブラックを2〜70質量部、シリカを1〜5質量部含み、かつ
シランカップリング剤を含まず、
前記プルロニック型非イオン界面活性剤がポリプロピレングリコールエチレンオキシド付加物であるタイヤ用ゴム組成物。
(式(1)中、R1は、炭素数6〜26の不飽和結合を有する炭化水素基を表す。dは整数を表す(ただし、0及び負の整数を除く)。)
(式(2)中、R2及びR3は、同一若しくは異なって、炭素数6〜26の炭化水素基を表す。eは整数を表す(ただし、0及び負の整数を除く)。) - ゴム成分100質量部に対して、前記非イオン界面活性剤を0.1〜5.0質量部含む請求項1記載のタイヤ用ゴム組成物。
- ゴム成分100質量部に対して、前記硫黄を0.1〜6.0質量部含む請求項1又は2記載のタイヤ用ゴム組成物。
- 前記ブタジエンゴムの含有量がゴム成分100質量%中30質量%以上である請求項1〜3のいずれかに記載のタイヤ用ゴム組成物。
- サイドウォール用ゴム組成物、クリンチ用ゴム組成物、及び/又はウイング用ゴム組成物として用いられる請求項1〜4のいずれかに記載のタイヤ用ゴム組成物。
- 請求項1〜5のいずれかに記載のゴム組成物を用いて作製したタイヤ部材を有する空気入りタイヤ。
- 前記タイヤ部材が、サイドウォール、クリンチ、及び/又はウイングである請求項6記載の空気入りタイヤ。
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| JP2014250111A JP6193841B2 (ja) | 2014-12-10 | 2014-12-10 | タイヤ用ゴム組成物、及び空気入りタイヤ |
| US15/529,879 US10550246B2 (en) | 2014-12-10 | 2015-11-11 | Rubber composition for tire, and pneumatic tire |
| EP15866799.8A EP3222659B1 (en) | 2014-12-10 | 2015-11-11 | Rubber composition for tire, and pneumatic tire |
| PCT/JP2015/081682 WO2016093006A1 (ja) | 2014-12-10 | 2015-11-11 | タイヤ用ゴム組成物、及び空気入りタイヤ |
| CN201580064543.2A CN107001709B (zh) | 2014-12-10 | 2015-11-11 | 轮胎用橡胶组合物和充气轮胎 |
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| JP2014250111A JP6193841B2 (ja) | 2014-12-10 | 2014-12-10 | タイヤ用ゴム組成物、及び空気入りタイヤ |
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| JP6193841B2 true JP6193841B2 (ja) | 2017-09-06 |
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| US (1) | US10550246B2 (ja) |
| EP (1) | EP3222659B1 (ja) |
| JP (1) | JP6193841B2 (ja) |
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| CN109476876A (zh) * | 2016-07-11 | 2019-03-15 | 株式会社普利司通 | 橡胶组合物、输送带和带式输送机 |
| JP7067468B2 (ja) * | 2016-10-26 | 2022-05-16 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物、及び空気入りタイヤ |
| EP3587486A4 (en) * | 2017-03-15 | 2020-11-11 | Sumitomo Rubber Industries, Ltd. | RUBBER COMPOSITION FOR SIDE WALL AND PNEUMATIC TIRES |
| JP7013825B2 (ja) * | 2017-12-04 | 2022-02-01 | 住友ゴム工業株式会社 | タイヤ外層用ゴム組成物及び空気入りタイヤ |
| JP7141605B2 (ja) * | 2017-12-06 | 2022-09-26 | 株式会社ブリヂストン | タイヤトレッド用ゴム組成物、タイヤトレッド、及びタイヤ |
| JP6665879B2 (ja) * | 2018-03-12 | 2020-03-13 | 横浜ゴム株式会社 | タイヤ用ゴム組成物及びスタッドレスタイヤ |
| CN112566795B (zh) * | 2018-10-16 | 2022-03-22 | 住友橡胶工业株式会社 | 轮胎 |
| JP6988862B2 (ja) * | 2019-08-08 | 2022-01-05 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物及びタイヤ |
| JP7484311B2 (ja) * | 2020-03-27 | 2024-05-16 | 住友ゴム工業株式会社 | ゴム組成物及びタイヤ |
| CN112980060A (zh) * | 2021-01-29 | 2021-06-18 | 山东玲珑轮胎股份有限公司 | 一种防止轮胎变色的橡胶组合物和轮胎 |
| CN114805952B (zh) * | 2021-07-23 | 2023-11-21 | 内蒙古第一机械集团股份有限公司 | 一种负重轮实心轮胎用橡胶组合物、制备方法、负重轮实心轮胎及制备方法 |
| US20250163250A1 (en) * | 2023-11-16 | 2025-05-22 | The Goodyear Tire & Rubber Company | Silica-based rubber compound with improved hysteresis and dispersion |
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| JPS63213536A (ja) * | 1987-02-27 | 1988-09-06 | Ohtsu Tire & Rubber Co Ltd | 外観が改良されたゴム組成物 |
| JPH0551491A (ja) * | 1991-08-23 | 1993-03-02 | Bridgestone Corp | ゴム組成物 |
| JPH05194790A (ja) | 1992-01-23 | 1993-08-03 | Ohtsu Tire & Rubber Co Ltd :The | サイドウォール用ゴム組成物 |
| JP3594150B2 (ja) | 1995-10-17 | 2004-11-24 | 株式会社ブリヂストン | 乗用車および小型トラック用タイヤトレッド用ゴム組成物 |
| US20030111770A1 (en) * | 2001-12-13 | 2003-06-19 | Bridgestone Corp. | Method of improving carbon black dispersion in rubber compositions |
| JP2006213864A (ja) * | 2005-02-04 | 2006-08-17 | Toyo Tire & Rubber Co Ltd | タイヤトレッド用ゴム組成物 |
| US7406990B2 (en) * | 2005-08-10 | 2008-08-05 | The Goodyear Tire & Rubber Company | Runflat tire with sidewall component containing high strength glass bubbles |
| CN103097449B (zh) | 2010-08-11 | 2016-04-06 | 株式会社普利司通 | 橡胶组合物、橡胶组合物的防止变色方法和轮胎 |
| JP5926902B2 (ja) * | 2010-08-11 | 2016-05-25 | 株式会社ブリヂストン | ゴム組成物、ゴム組成物の変色防止方法、及びタイヤ |
| DE112012001835B4 (de) * | 2011-04-22 | 2017-07-13 | The Yokohama Rubber Co., Ltd. | Kautschukzusammensetzung für Reifen sowie deren Verwendung |
| JP5367860B2 (ja) * | 2011-09-29 | 2013-12-11 | 住友ゴム工業株式会社 | サイドウォール用ゴム組成物およびそれを用いたタイヤ |
| EP2690212B1 (en) * | 2012-07-23 | 2016-11-09 | Whirlpool Corporation | A method for controlling a laundry drying machine with heat pump system and laundry drying machine controlled by such method |
| JP5960732B2 (ja) | 2013-07-05 | 2016-08-02 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物及び空気入りタイヤ |
| CN106133047B (zh) * | 2014-03-26 | 2019-05-07 | 住友橡胶工业株式会社 | 轮胎用橡胶组合物、充气轮胎以及轮胎用橡胶组合物的制造方法 |
| US20170306130A1 (en) | 2014-11-28 | 2017-10-26 | Sumitomo Rubber Industries, Ltd. | Rubber composition for tire outer layer, and pneumatic tire |
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2014
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-
2015
- 2015-11-11 EP EP15866799.8A patent/EP3222659B1/en active Active
- 2015-11-11 WO PCT/JP2015/081682 patent/WO2016093006A1/ja not_active Ceased
- 2015-11-11 CN CN201580064543.2A patent/CN107001709B/zh not_active Expired - Fee Related
- 2015-11-11 US US15/529,879 patent/US10550246B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016108515A (ja) | 2016-06-20 |
| CN107001709B (zh) | 2020-07-10 |
| CN107001709A (zh) | 2017-08-01 |
| EP3222659A1 (en) | 2017-09-27 |
| US20170260373A1 (en) | 2017-09-14 |
| EP3222659A4 (en) | 2018-09-12 |
| EP3222659B1 (en) | 2020-08-05 |
| US10550246B2 (en) | 2020-02-04 |
| WO2016093006A1 (ja) | 2016-06-16 |
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