JP2015209031A - ランフラットタイヤ - Google Patents
ランフラットタイヤ Download PDFInfo
- Publication number
- JP2015209031A JP2015209031A JP2014090478A JP2014090478A JP2015209031A JP 2015209031 A JP2015209031 A JP 2015209031A JP 2014090478 A JP2014090478 A JP 2014090478A JP 2014090478 A JP2014090478 A JP 2014090478A JP 2015209031 A JP2015209031 A JP 2015209031A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- run
- rubber composition
- flat tire
- tensile stress
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
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- 239000005060 rubber Substances 0.000 claims abstract description 70
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- 239000000203 mixture Substances 0.000 claims abstract description 38
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims abstract description 22
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- 238000002156 mixing Methods 0.000 claims abstract description 20
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- 230000000052 comparative effect Effects 0.000 description 7
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- 230000000694 effects Effects 0.000 description 4
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 4
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- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 description 2
- BYLSIPUARIZAHZ-UHFFFAOYSA-N 2,4,6-tris(1-phenylethyl)phenol Chemical compound C=1C(C(C)C=2C=CC=CC=2)=C(O)C(C(C)C=2C=CC=CC=2)=CC=1C(C)C1=CC=CC=C1 BYLSIPUARIZAHZ-UHFFFAOYSA-N 0.000 description 2
- CZNRFEXEPBITDS-UHFFFAOYSA-N 2,5-bis(2-methylbutan-2-yl)benzene-1,4-diol Chemical compound CCC(C)(C)C1=CC(O)=C(C(C)(C)CC)C=C1O CZNRFEXEPBITDS-UHFFFAOYSA-N 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 2
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- UTGQNNCQYDRXCH-UHFFFAOYSA-N N,N'-diphenyl-1,4-phenylenediamine Chemical compound C=1C=C(NC=2C=CC=CC=2)C=CC=1NC1=CC=CC=C1 UTGQNNCQYDRXCH-UHFFFAOYSA-N 0.000 description 2
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229930003836 cresol Natural products 0.000 description 2
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- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 150000007974 melamines Chemical class 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
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- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
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- 238000009864 tensile test Methods 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 239000003981 vehicle Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 125000002256 xylenyl group Chemical class C1(C(C=CC=C1)C)(C)* 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- UDYXMTORTDACTG-UHFFFAOYSA-N 1,1,3-tributylthiourea Chemical compound CCCCNC(=S)N(CCCC)CCCC UDYXMTORTDACTG-UHFFFAOYSA-N 0.000 description 1
- YLMXNQPOOVZIHK-UHFFFAOYSA-N 1,3-bis[3-(dimethylamino)propyl]thiourea Chemical compound CN(C)CCCNC(=S)NCCCN(C)C YLMXNQPOOVZIHK-UHFFFAOYSA-N 0.000 description 1
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
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- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- XGIDEUICZZXBFQ-UHFFFAOYSA-N 1h-benzimidazol-2-ylmethanethiol Chemical compound C1=CC=C2NC(CS)=NC2=C1 XGIDEUICZZXBFQ-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
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- HVHZEKKZMFRULH-UHFFFAOYSA-N 2,6-ditert-butyl-4-methylpyridine Chemical compound CC1=CC(C(C)(C)C)=NC(C(C)(C)C)=C1 HVHZEKKZMFRULH-UHFFFAOYSA-N 0.000 description 1
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- GPNYZBKIGXGYNU-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound CC(C)(C)C1=CC(CC)=CC(CC=2C(=C(C=C(CC)C=2)C(C)(C)C)O)=C1O GPNYZBKIGXGYNU-UHFFFAOYSA-N 0.000 description 1
- BKZXZGWHTRCFPX-UHFFFAOYSA-N 2-tert-butyl-6-methylphenol Chemical compound CC1=CC=CC(C(C)(C)C)=C1O BKZXZGWHTRCFPX-UHFFFAOYSA-N 0.000 description 1
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- UJAWGGOCYUPCPS-UHFFFAOYSA-N 4-(2-phenylpropan-2-yl)-n-[4-(2-phenylpropan-2-yl)phenyl]aniline Chemical compound C=1C=C(NC=2C=CC(=CC=2)C(C)(C)C=2C=CC=CC=2)C=CC=1C(C)(C)C1=CC=CC=C1 UJAWGGOCYUPCPS-UHFFFAOYSA-N 0.000 description 1
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- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
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- 238000004132 cross linking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- 238000000691 measurement method Methods 0.000 description 1
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- KEZPMZSDLBJCHH-UHFFFAOYSA-N n-(4-anilinophenyl)-4-methylbenzenesulfonamide Chemical compound C1=CC(C)=CC=C1S(=O)(=O)NC(C=C1)=CC=C1NC1=CC=CC=C1 KEZPMZSDLBJCHH-UHFFFAOYSA-N 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical group CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
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Images
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
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/0009—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts
-
- 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
-
- 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
- B60C2001/0033—Compositions of the sidewall inserts, e.g. for runflat
-
- 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
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/0009—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts
- B60C2017/0054—Physical properties or dimensions of the inserts
- B60C2017/0063—Modulus; Hardness; Loss modulus or "tangens delta"
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
【解決手段】サイド補強ゴム部により補強されたサイドウォール部を有するランフラットタイヤにおいて、サイド補強ゴム部は、23℃での50%伸張時の引張応力(M50N)に対する100℃での50%伸張時の引張応力(M50H)の比(M50H/M50N)が1.0以上1.3以下であるゴム組成物からなる。該ゴム組成物は、天然ゴム及びポリブタジエンゴムを含むジエン系ゴムに、フェノール系熱硬化性樹脂とメチレン供与体を配合してなるものであり、メチレン供与体に対するフェノール系熱硬化性樹脂の質量比が1.5倍以上であることが好ましい。また、該ゴム組成物は、キノリン系老化防止剤と、それ以外の少なくとも一種の老化防止剤を配合してなるものが好ましい。
【選択図】図1
Description
1.0 ≦ M50H/M50N ≦ 1.3
かかる物性を持つゴム組成物を用いることにより、通常走行時における走行性能を維持しつつ、ランフラット走行時におけるサイドウォール部の変形を抑えてランフラット耐久性を向上することができる。
・NR:天然ゴム、RSS3号
・BR:JSR(株)製「BR01」(シス−1,4結合含有量=95%)
・Nd−BR:ネオジウム系触媒で重合されたポリブタジエンゴム、KUNHO PETROCHEMICAL社製「BR40」(シス−1,4結合含有量=98%)
・オイル:JX日鉱日石サンエナジー(株)製「JOMOプロセスNC140」
・カーボンブラック:N550、東海カーボン(株)製「シーストSO」
・ステアリン酸:花王(株)製「ルナックS−20」
・フェノール系樹脂:オイル変性ノボラック型フェノール樹脂、住友ベークライト(株)製「スミライトレジンPR13349」
・亜鉛華:三井金属鉱業(株)製「亜鉛華1号」
・老化防止剤1:N−フェニル−N’−(1,3−ジメチルブチル)−p−フェニレンジアミン、住友化学(株)製「アンチゲン6C」
・老化防止剤2:2,2,4−トリメチル−1,2−ジヒドロキノリン重合体(TMDQ)、川口化学工業(株)製「アンテージRD」
・加硫促進剤:スルフェンアミド系、大内新興化学工業(株)製「ノクセラーNS−P」
・メチレン供与体:ヘキサメトキシメチルメラミン、三井サイテック(株)製「CYREZ 964RPC」
・硫黄:四国化成工業(株)「ミュークロンOT−20」
Claims (5)
- サイド補強ゴム部により補強されたサイドウォール部を有し、
前記サイド補強ゴム部は、測定温度23℃での50%伸張時の引張応力(M50N)に対する測定温度100℃での50%伸張時の引張応力(M50H)の比(M50H/M50N)が1.0以上1.3以下であるゴム組成物からなるランフラットタイヤ。 - 前記ゴム組成物が、天然ゴム及びポリブタジエンゴムを含むジエン系ゴムに、フェノール系熱硬化性樹脂と、メチレン供与体を配合してなるものであり、前記メチレン供与体に対する前記フェノール系熱硬化性樹脂の配合量の質量比が1.5倍以上である、請求項1記載のランフラットタイヤ。
- 前記ゴム組成物が、キノリン系老化防止剤と、キノリン系老化防止剤以外の少なくとも一種の老化防止剤を配合してなるものである、請求項2記載のランフラットタイヤ。
- 前記キノリン系老化防止剤の配合量が、老化防止剤の全配合量に対して20質量%以上である、請求項3記載のランフラットタイヤ。
- 前記ゴム組成物の測定温度100℃での50%伸張時の引張応力(M50H)が3.5MPa以上である、請求項1〜4のいずれか1項に記載のランフラットタイヤ。
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US14/669,561 US10214058B2 (en) | 2014-04-24 | 2015-03-26 | Run flat tire |
CN201510159519.9A CN105017570B (zh) | 2014-04-24 | 2015-04-03 | 跑气保用轮胎 |
DE102015207453.6A DE102015207453B4 (de) | 2014-04-24 | 2015-04-23 | Notlaufreifen |
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