JP2021107499A - タイヤトレッド用ゴム組成物、及びそれを用いた空気入りタイヤ - Google Patents
タイヤトレッド用ゴム組成物、及びそれを用いた空気入りタイヤ Download PDFInfo
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- JP2021107499A JP2021107499A JP2019239120A JP2019239120A JP2021107499A JP 2021107499 A JP2021107499 A JP 2021107499A JP 2019239120 A JP2019239120 A JP 2019239120A JP 2019239120 A JP2019239120 A JP 2019239120A JP 2021107499 A JP2021107499 A JP 2021107499A
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- 230000003595 spectral effect Effects 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- 229940052367 sulfur,colloidal Drugs 0.000 description 1
- XHGGEBRKUWZHEK-UHFFFAOYSA-L tellurate Chemical compound [O-][Te]([O-])(=O)=O XHGGEBRKUWZHEK-UHFFFAOYSA-L 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000011240 wet gel Substances 0.000 description 1
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
窒素置換された耐熱反応容器に、シクロヘキサンを2.5L、テトラヒドロフラン(THF)を50g、n−ブチルリチウムを0.12g、スチレンを100g、1,3−ブタジエンを400g入れ、反応温度50℃で重合を行った。重合が完了した後にN,N−ビス(トリメチルシリル)アミノプロピルメチルジエトキシランを1.7g加えて、1時間反応させた後、水素ガスを0.4MPa−ゲージの圧力で供給し、20分間撹拌した。次いで、水素ガス供給圧力を0.7MPa−ゲージ、反応温度を90℃とし、チタノセンジクロリドを主とした触媒を用いて目的の水素添加率となるまで反応させ、溶媒を除去することにより、水添共重合体1を得た。
バンバリーミキサーを使用し、下記表1に示す配合(質量部)に従い、まず、第一混合段階(ノンプロ練り工程)で、加硫促進剤及び硫黄を除く成分を添加混合し(排出温度=160℃)、次いで、得られた混合物に、最終混合段階(プロ練り工程)で、加硫促進剤及び硫黄を添加混合して(排出温度=90℃)、ゴム組成物を調製した。
・水添SBR1:上記合成例1に従い作製した水添共重合体1
・アロマ系オイル:JXTGエネルギー(株)製「プロセスNC140」
・パラフィン系オイル:JXTGエネルギー(株)製「プロセスP200」
・植物油1:カネダ(株)製「大豆油」、パルミチン酸11質量%、ステアリン酸4質量%、オレイン酸25質量%、リノール酸52質量%、リノレン酸7質量%、オレイン酸/リノール酸:0.48
・植物油2:カネダ(株)製「あまに油」、リノレン酸50質量%、リノール酸20質量%、オレイン酸18質量%、オレイン酸/リノール酸:0.9
・植物油3:カネダ(株)製「ひまわり油」、パルミチン酸4質量%、ステアリン酸3質量%、オレイン酸84質量%、リノール酸8質量%、オレイン酸/リノール酸:10.5
・シリカ:エボニックジャパン社製「UltrasilVN3」
・シランカップリング剤:エボニックジャパン社製「Si69」
・カーボンブラック:東海カーボン(株)製「シースト3」
・酸化亜鉛:三井金属鉱業(株)製「酸化亜鉛2種」
・老化防止剤:住友化学(株)製「アンチゲン6C」
・ステアリン酸:花王(株)製「ルナックS−20」
・ワックス:日本精蝋(株)製「OZOACE0355」
・硫黄:鶴見化学工業(株)製「5%油入微粉末硫黄」
・加硫促進剤1:住友化学(株)製「ソクシノールCZ」、スルフェンアミド系加硫促進剤
・加硫促進剤2:大内新興化学工業(株)製「ノクセラ−D」、グアニジン系加硫促進剤
・加硫促進剤3:三新化学工業(株)製「サンセラーZBE」、ジチオカルバミン酸塩系加硫促進剤
Claims (3)
- 芳香族ビニル−共役ジエン共重合体が水素添加された水添共重合体であって、ゲル浸透クロマトグラフィーにより測定された重量平均分子量が30万以上であり、共役ジエン部の水素添加率が80モル%以上である水添共重合体を70〜100質量部含むゴム成分100質量部に対して、
シリカ1〜150質量部と、
植物油1〜50質量部とを含有する、タイヤトレッド用ゴム組成物。 - 前記植物油の構成脂肪酸100質量%中、オレイン酸とリノール酸とを合計で35〜95質量%含有する、請求項1に記載のタイヤトレッド用ゴム組成物。
- 請求項1又は2に記載のタイヤトレッド用ゴム組成物を用いて作製した、空気入りタイヤ。
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JP7195477B1 (ja) | 2022-10-28 | 2022-12-23 | Toyo Tire株式会社 | タイヤ用ゴム組成物および空気入りタイヤ |
JP2023513541A (ja) * | 2020-10-12 | 2023-03-31 | エルジー・ケム・リミテッド | 油展変性共役ジエン系重合体、その製造方法、及びそれを含むゴム組成物 |
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JP2023513541A (ja) * | 2020-10-12 | 2023-03-31 | エルジー・ケム・リミテッド | 油展変性共役ジエン系重合体、その製造方法、及びそれを含むゴム組成物 |
JP7195477B1 (ja) | 2022-10-28 | 2022-12-23 | Toyo Tire株式会社 | タイヤ用ゴム組成物および空気入りタイヤ |
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