JP6033786B2 - 湿潤地面上で改良されたグリップ性を有するタイヤトレッド - Google Patents
湿潤地面上で改良されたグリップ性を有するタイヤトレッド Download PDFInfo
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- JP6033786B2 JP6033786B2 JP2013540362A JP2013540362A JP6033786B2 JP 6033786 B2 JP6033786 B2 JP 6033786B2 JP 2013540362 A JP2013540362 A JP 2013540362A JP 2013540362 A JP2013540362 A JP 2013540362A JP 6033786 B2 JP6033786 B2 JP 6033786B2
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- butadiene
- styrene
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- copolymer
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- 239000000203 mixture Substances 0.000 claims description 82
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 76
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 71
- 229920001577 copolymer Polymers 0.000 claims description 46
- 229920001971 elastomer Polymers 0.000 claims description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 39
- 239000004014 plasticizer Substances 0.000 claims description 35
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- 239000000806 elastomer Substances 0.000 claims description 21
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- 239000013032 Hydrocarbon resin Substances 0.000 claims description 17
- 229920003244 diene elastomer Polymers 0.000 claims description 17
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
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- 125000001931 aliphatic group Chemical group 0.000 description 4
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- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 3
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 3
- XMGQYMWWDOXHJM-JTQLQIEISA-N (+)-α-limonene Chemical compound CC(=C)[C@@H]1CCC(C)=CC1 XMGQYMWWDOXHJM-JTQLQIEISA-N 0.000 description 2
- XMGQYMWWDOXHJM-SNVBAGLBSA-N (-)-α-limonene Chemical compound CC(=C)[C@H]1CCC(C)=CC1 XMGQYMWWDOXHJM-SNVBAGLBSA-N 0.000 description 2
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 2
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
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- HBAQYPYDRFILMT-UHFFFAOYSA-N 8-[3-(1-cyclopropylpyrazol-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-methyl-3,8-diazabicyclo[3.2.1]octan-2-one Chemical class C1(CC1)N1N=CC(=C1)C1=NNC2=C1N=C(N=C2)N1C2C(N(CC1CC2)C)=O HBAQYPYDRFILMT-UHFFFAOYSA-N 0.000 description 2
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- 239000011384 asphalt concrete Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 229940067597 azelate Drugs 0.000 description 1
- 229930006722 beta-pinene Natural products 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
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- 238000003763 carbonization Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- QSAWQNUELGIYBC-UHFFFAOYSA-N cyclohexane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCCC1C(O)=O QSAWQNUELGIYBC-UHFFFAOYSA-N 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
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- 239000012156 elution solvent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000002270 exclusion chromatography Methods 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- LCWMKIHBLJLORW-UHFFFAOYSA-N gamma-carene Natural products C1CC(=C)CC2C(C)(C)C21 LCWMKIHBLJLORW-UHFFFAOYSA-N 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229960005150 glycerol Drugs 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 239000008169 grapeseed oil Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- RLAWWYSOJDYHDC-BZSNNMDCSA-N lisinopril Chemical compound C([C@H](N[C@@H](CCCCN)C(=O)N1[C@@H](CCC1)C(O)=O)C(O)=O)CC1=CC=CC=C1 RLAWWYSOJDYHDC-BZSNNMDCSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical group [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- JESXATFQYMPTNL-UHFFFAOYSA-N mono-hydroxyphenyl-ethylene Natural products OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 1
- VILGDADBAQFRJE-UHFFFAOYSA-N n,n-bis(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SN(SC=3SC4=CC=CC=C4N=3)C(C)(C)C)=NC2=C1 VILGDADBAQFRJE-UHFFFAOYSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
- 239000000312 peanut oil Substances 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
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000003223 protective agent Substances 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
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 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
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- FBBATURSCRIBHN-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyldisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSCCC[Si](OCC)(OCC)OCC FBBATURSCRIBHN-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 125000005591 trimellitate group Chemical group 0.000 description 1
- 239000002383 tung oil Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 1
- AUMBZPPBWALQRO-UHFFFAOYSA-L zinc;n,n-dibenzylcarbamodithioate Chemical compound [Zn+2].C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1.C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1 AUMBZPPBWALQRO-UHFFFAOYSA-L 0.000 description 1
Classifications
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- B60C1/0016—Compositions of the tread
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
- C08K5/31—Guanidine; Derivatives thereof
-
- 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
- C08K5/45—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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- 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
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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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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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
- C08L45/00—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
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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
- C08L47/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Compositions of derivatives of such polymers
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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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
・50〜100phrの、スチレンとブタジエンをベースとするコポリマー;
・任意構成成分としての、0〜50phrの他のジエンエラストマー:
・100〜150phrの補強用無機充填剤;
・下記を含む可塑化系:
・10phrと60phrの間の含有量Aに従う、20℃よりも高いTgを有する熱可塑性炭化水素樹脂;
・10phrと60phrの間の含有量Bに従う液体可塑剤;
・50phrよりも多い総含有量A+B。
本説明においては、特に明確に断らない限り、示す百分率(%)は、全て質量%である。
略号“phr”は、エラストマーまたはゴム(複数のエラストマーが存在する場合、エラストマーの総量)の100質量部当りの質量部を意味する。
スチレンとブタジエンをベースとするコポリマーは、少なくとも1種のスチレンモノマーと少なくとも1種のブタジエンモノマーのコポリマーを(勿論、そのようなコポリマーの混合物も)意味するものと理解されたい;換言すれば、スチレンとブタジエンをベースとする上記コポリマーは、定義によれば、少なくとも、スチレン単位(スチレンモノマーに由来する)とブタジエン単位(ブタジエンモノマーに由来する)とを含む。
本発明に従うタイヤのトレッドのゴム組成物は、他の本質的な特徴として、補強用無機充填剤を、特定の量で、即ち、100〜150phの割合で含むという特徴を有する。
特に、例えば出願 WO 03/002648号(またはUS 2005/016651号)およびWO 03/002649号(またはUS 2005/016650号)に記載されているような、その特定の構造によって“対称形”または“非対称形”と称するシランポリスルフィドを使用する。
(I) Z ‐ A ‐ Sx ‐ A ‐ Z
[式中、xは、2〜8 (好ましくは2〜5)の整数であり;
A符号は、同一または異なるものであって、2価の炭化水素系基(好ましくはC1〜C18アルキレン基またはC6〜C12アリーレン基、特にC1〜C10、特にC1〜C4アルキレン、特にプロピレン)であり;
Z符号は、同一または異なるものであって、下記の3つの式の1つに相応する:
(式中、R1基、置換されているかまたは置換されてなく、互いに同一または異なるものであって、C1〜C18アルキル、C5〜C18シクロアルキルまたはC6〜C18アリール基(好ましくはC1〜C6アルキル、シクロヘキシルまたはフェニル基、特にC1〜C4アルキル基、特にメチルおよび/またはエチル)を示し;
R2基は、置換されているかまたは置換されてなく、互いに同一または異なるものであって、C1〜C18アルコキシルまたはC5〜C18シクロアルコキシル基(好ましくは、C1〜C8アルコキシルおよびC5〜C8シクロアルコキシルから選ばれる基、さらにより好ましくはC1〜C4アルコキシルから選ばれる基、特にメトキシルおよびエトキシル)を示す)]。
カップリング剤の含有量は、好ましくは2phrと20phrの間、より好ましくは3phrと15phrの間の量である。
本発明に従うタイヤのトレッドのゴム組成物のもう1つの本質的特徴は、一方の10phrと60phrの間の含有量Aに従う、20℃よりも高いTgを有する熱可塑性炭化水素樹脂と、他方の10phrと60phrの間の含有量Bに従う液体可塑剤とを含む特定の可塑化系を含むことである;総含有量A+Bは、50phrよりも多いことを理解されたい。好ましくは、含有量Aは10phrと50phrの間の量であり、含有量Bは、10phrと50phrの間の量である。
本発明のもう1つの特定の実施態様によれば、A対Bの比は、1:5と5:1の間(即ち、0.2と5.0の間)、より好ましくは1:4と4:1の間(即ち、0.25と4.0の間)の比である。
さらにまた、好ましくは、(A+B)対補強用無機充填剤、特にシリカの質量の質量による比は、35%と70%の間、より好ましくは40%〜60%の範囲内である。
・25℃よりも高い(特に30℃と100℃の間の)、より好ましくは30℃より高い(特に30℃と95℃の間の)Tg;
・50℃よりも高い(特に50℃と150℃の間の)軟化点;
・400g/モルと2000g/モルの間、好ましくは500g/モルと1500g/モルの間の数平均モル質量(Mn);
・3よりも低い、好ましくは2よりも低い多分散性指数(PI) (注釈:PI = Mw/Mn;Mwは質量平均モル質量である)。
また、本発明に従うタイヤトレッドのゴム組成物は、上述した充填剤以外の充填剤、例えば、チョークのような非補強用充填剤、或いはカオリンまたはタルクのような層状充填剤;顔料;例えば、オゾン劣化防止ワックス、化学オゾン劣化防止剤、酸化防止剤のような保護剤;補強用樹脂(レゾルシノールまたはビスマレイミドのような);例えば、出願WO 02/10269号に記載されているようなメチレン受容体(例えば、フェノールノボラック樹脂)またはメチレン供与体(例えば、HMTまたはH3M);イオウまたはイオウ供与体および/または過酸化物および/またはビスマレイミドのいずれかをベースとする架橋系;加硫促進剤、加硫遅延剤または加硫活性化剤のような、タイヤ、特にタイヤ用のトレッドの製造を意図するエラストマー組成物において一般的に使用する通常の添加剤の全部または1部も含み得る。
本発明のタイヤのトレッドにおいて使用する組成物は、適切なミキサー内で、当業者にとって周知の2つの連続する製造段階、即ち、110℃と190℃の間、好ましくは130℃と180℃の間の最高温度までの高温で熱機械的に加工または混練する第1段階(“非生産”段階)、並びに、その後の典型的には110℃よりも低い、例えば、40℃と100℃の間の低めの温度まで機械加工する第2段階(“生産”段階)を使用して製造し、この仕上げ段階において架橋系を混入する。
・1種以上のジエンエラストマーを、補強用無機充填剤、カップリング剤、必要に応じてカーボンブラックおよび可塑化系と一緒に、110℃と190℃の間の最高温度に達するまで熱機械的に混練する段階(例えば、1回以上) (“非生産”段階);
・混ぜ合せた混合物を100℃よりも低い温度に冷却する段階;
・その後、第2段階(“生産”段階)において、架橋系を混入する段階;
・全てを110℃よりも低い最高温度まで混練する段階。
本発明は、生状態(即ち、硬化前)および硬化状態(即ち、架橋または加硫後)双方の上述したタイヤに関する。
II‐1. 組成物の製造
以下の試験を次の方法で実施する:エラストマー、シリカ、カップリング剤、可塑剤、さらにまた、加硫系を除いた各種他の成分を、初期容器温度が約60℃である密閉ミキサーに連続して導入する(最終充填率:約70容量%)。その後、熱機械的加工(非生産段階)を1工程で実施する;この段階は、165℃の最高“落下”温度に達するまで合計で5分間続く。そのようにして得られた混合物を回収し、冷却し、その後、イオウとスルフェンアミドタイプの促進剤を23℃のミキサー(ホモ・フィニッシャー)内で混入し、全てを適切な時間(例えば、5〜12分間)混合する(生産段階)。
試験A
この第1試験の必要条件として、2通りのゴム組成物(以下、A‐1およびA‐2で示す)を製造した;これら組成物の配合は、下記の表1に示しており、種々の成分の含有量を、phr (総エラストマーの100質量部当りの質量部)で表している。
各タイヤを、ABSシステムを備えたBMW型式で且つ“530”モデルの自動車に、公称膨張圧下に、前後輪に装着する。
この第2試験の必要条件として、2通りの他のゴム組成物(B‐1およびB‐2で示す)を製造した;これら組成物の配合は、下記の表3に示している。
上記のようにして、各タイヤを、ABSシステムを備えたVolkswagen型式で且つ“Golf 6”モデルの自動車に、公称膨張圧下に、前後輪に装着する。
得られた試験の結果は、下記の表4に示している。
(1) 4%の1,2‐単位および93%のシス‐1,4‐単位を含むBR (Tg = −106℃);
(2) SBR:44%のスチレン単位および41%のブタジエン成分の1,2‐単位を含む溶液SBR (シラノール官能化) (Tg = −12℃);
(3) Rhodia社からのZeosil 1165MPシリカ(HDSタイプ);
(4) TESPTカップリング剤 (Degussa社からのSi69);
(5) ASTM級N234 (Cabot社);
(6) TDAEオイル (Klaus Dahleke社からのVivatec 500);
(7) 85質量%のオレイン酸を含むヒマワリ油 (Novance社からのLubrirob Tod 1880);
(8) C5/C9樹脂 (Exxon社からのEscorez ECR‐373);
(9) Flexsys社からの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;
(10) ジフェニルグアニジン (Flexsys社からのPerkacit DPG);
(11) N‐ジシクロヘキシル‐2‐ベンゾチアゾールスルフェンアミド (Flexsys社からの“Santocure CBS”)。
(1) 4%の1,2‐単位および93%のシス‐1,4‐単位を含むBR (Tg = −106℃);
(2) 25%のスチレン単位および58%のブタジエン成分の1,2‐単位を含む溶液SBR (Tg = −24℃);
(3) 27%のスチレン単位および24%のブタジエン成分の1,2‐単位を含む溶液SBR (アルコキシシラン官能化) (Tg = −48℃);
(4) Rhodia社からのZeosil 1165MPシリカ(HDSタイプ);
(5) TESPTカップリング剤 (Degussa社からのSi69);
(6) ASTM級N234 (Cabot社);
(7) MESオイル (Shell社からのCatenex SNR);
(8) 85質量%のオレイン酸を含むヒマワリ油 (Novance社からのLubrirob Tod 1880);
(9) ポリリモネン樹脂 (DRT社からのDercolyte L120);
(10) 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(Flexsys社);
(11) ジフェニルグアニジン (Flexsys社からのPerkacit DPG);
(12) N‐ジシクロヘキシル‐2‐ベンゾチアゾールスルフェンアミド (Flexsys社からの“Santocure CBS”)。
Claims (9)
- トレッドが、少なくとも下記を含むゴム組成物を含むことを特徴とするタイヤ:
・50〜100phrの、スチレンとブタジエンをベースとするコポリマー;
・任意構成成分としての、0〜50phrの他のジエンエラストマー:
・100〜150phrの、シリカである補強用無機充填剤;
・下記を含む可塑化系:
・10phrと60phrの間の含有量Aに従う、20℃よりも高いTgを有する熱可塑性炭化水素樹脂;
・10phrと60phrの間の含有量Bに従う液体可塑剤;
・50phrと100phrの間の総含有量A+B。 - スチレンとブタジエンをベースとする前記コポリマーが、スチレン/ブタジエンコポリマーである、請求項1記載のタイヤ。
- 前記他のジエンエラストマーが、ポリブタジエン、天然ゴム、合成ポリイソプレン、ブタジエンコポリマー、イソプレンコポリマーおよびこれらのエラストマーの混合物からなる群から選ばれる、請求項1または2記載のタイヤ。
- 前記他のジエンエラストマーが、ポリブタジエンである、請求項3記載のタイヤ。
- 前記他のジエンエラストマーが、天然ゴムまたは合成ポリイソプレンである、請求項3記載のタイヤ。
- スチレンとブタジエンをベースとする前記コポリマーの含有量が、60〜100phrの範囲内である、請求項1〜5のいずれか1項記載のタイヤ。
- 補強用無機充填剤の含有量が、110〜140phrの範囲内である、請求項1〜6のいずれか1項記載のタイヤ。
- Aが10phrと50phrの間の量であり、Bが10phrと50phrの間の量である、請求項1〜7のいずれか1項記載のタイヤ。
- A+Bが、50phrと80phrの間の量である、請求項1〜8のいずれか1項記載のタイヤ。
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FR1059785A FR2968307B1 (fr) | 2010-11-26 | 2010-11-26 | Bande de roulement de pneumatique |
FR1059785 | 2010-11-26 | ||
PCT/EP2011/070930 WO2012069585A1 (fr) | 2010-11-26 | 2011-11-24 | Bande de roulement de pneumatique a adherence amelioree sur sol mouille |
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JP2010126672A (ja) | 2008-11-28 | 2010-06-10 | Yokohama Rubber Co Ltd:The | タイヤトレッド用ゴム組成物 |
US7671132B1 (en) | 2008-12-17 | 2010-03-02 | The Goodyear Tire & Rubber Company | Pneumatic tire with tread |
JP5521322B2 (ja) | 2008-12-18 | 2014-06-11 | 横浜ゴム株式会社 | タイヤトレッド用ゴム組成物 |
FR2940290B1 (fr) | 2008-12-22 | 2010-12-31 | Michelin Soc Tech | Agent de couplage mercaptosilane bloque |
JP2010168491A (ja) | 2009-01-23 | 2010-08-05 | Yokohama Rubber Co Ltd:The | タイヤ用ゴム組成物 |
JP5359598B2 (ja) | 2009-06-23 | 2013-12-04 | 横浜ゴム株式会社 | タイヤトレッド用ゴム組成物 |
FR2951180B1 (fr) | 2009-10-08 | 2011-10-28 | Michelin Soc Tech | Composition de caoutchouc comprenant un thiazole |
JP4883172B2 (ja) | 2009-12-10 | 2012-02-22 | 横浜ゴム株式会社 | タイヤ用ゴム組成物 |
FR2955116B1 (fr) | 2010-01-14 | 2013-05-24 | Soc Tech Michelin | Composition de caoutchouc comprenant un elastomere thermoplastique polaire comprenant un bloc alkylacrylate |
FR2957082B1 (fr) | 2010-03-05 | 2012-03-02 | Michelin Soc Tech | Pneumatique dont la bande de roulement comporte un elastomere thermoplastique. |
CN102971349A (zh) | 2010-06-30 | 2013-03-13 | 米其林集团总公司 | 用于高性能轮胎的轮胎胎面 |
FR2968307B1 (fr) | 2010-11-26 | 2018-04-06 | Societe De Technologie Michelin | Bande de roulement de pneumatique |
JP6074113B2 (ja) | 2014-12-24 | 2017-02-01 | 住友ゴム工業株式会社 | 空気入りタイヤ |
JP6772702B2 (ja) | 2016-09-15 | 2020-10-21 | 横浜ゴム株式会社 | コンベヤベルト用ゴム組成物、及び、コンベヤベルト |
EP3580071A4 (en) | 2017-02-13 | 2021-01-13 | Cooper Tire & Rubber Company | TREAD COMPOUND |
-
2010
- 2010-11-26 FR FR1059785A patent/FR2968307B1/fr active Active
-
2011
- 2011-11-24 EP EP11791255.0A patent/EP2643401B1/fr active Active
- 2011-11-24 JP JP2013540362A patent/JP6033786B2/ja active Active
- 2011-11-24 US US13/988,709 patent/US20130274404A1/en not_active Abandoned
- 2011-11-24 WO PCT/EP2011/070930 patent/WO2012069585A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP2643401B1 (fr) | 2020-10-14 |
WO2012069585A1 (fr) | 2012-05-31 |
FR2968307A1 (fr) | 2012-06-08 |
US20130274404A1 (en) | 2013-10-17 |
EP2643401A1 (fr) | 2013-10-02 |
JP2013544936A (ja) | 2013-12-19 |
FR2968307B1 (fr) | 2018-04-06 |
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