JP2008038119A - 重荷重用空気入りタイヤ - Google Patents
重荷重用空気入りタイヤ Download PDFInfo
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- JP2008038119A JP2008038119A JP2006218525A JP2006218525A JP2008038119A JP 2008038119 A JP2008038119 A JP 2008038119A JP 2006218525 A JP2006218525 A JP 2006218525A JP 2006218525 A JP2006218525 A JP 2006218525A JP 2008038119 A JP2008038119 A JP 2008038119A
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- Prior art keywords
- rubber
- group
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- meth
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- 229920001971 elastomer Polymers 0.000 claims abstract description 116
- 239000005060 rubber Substances 0.000 claims abstract description 116
- -1 silane compound Chemical class 0.000 claims abstract description 82
- 239000000203 mixture Substances 0.000 claims abstract description 64
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 55
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 52
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 52
- 229920001194 natural rubber Polymers 0.000 claims abstract description 52
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 33
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 32
- 150000001993 dienes Chemical class 0.000 claims abstract description 32
- 239000011593 sulfur Substances 0.000 claims abstract description 32
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 31
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 31
- 229910000077 silane Inorganic materials 0.000 claims abstract description 27
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 27
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 20
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 12
- 239000000178 monomer Substances 0.000 claims description 64
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 33
- 229920006173 natural rubber latex Polymers 0.000 claims description 21
- 125000004432 carbon atom Chemical group C* 0.000 claims description 20
- 239000005062 Polybutadiene Substances 0.000 claims description 16
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 15
- 150000002430 hydrocarbons Chemical group 0.000 claims description 15
- 125000003118 aryl group Chemical group 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 7
- 125000000524 functional group Chemical group 0.000 claims description 7
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 125000002947 alkylene group Chemical group 0.000 claims description 5
- 125000005842 heteroatom Chemical group 0.000 claims description 5
- 229920001519 homopolymer Polymers 0.000 claims description 5
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 5
- 125000005156 substituted alkylene group Chemical group 0.000 claims description 4
- 230000001112 coagulating effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 24
- 238000005299 abrasion Methods 0.000 abstract description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 33
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 26
- 238000006116 polymerization reaction Methods 0.000 description 20
- 125000003277 amino group Chemical group 0.000 description 19
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 15
- 239000003505 polymerization initiator Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 125000004122 cyclic group Chemical group 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 229920000126 latex Polymers 0.000 description 8
- 239000004816 latex Substances 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 238000013329 compounding Methods 0.000 description 7
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 125000000623 heterocyclic group Chemical group 0.000 description 6
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 6
- 229920002554 vinyl polymer Polymers 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003995 emulsifying agent Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- WBUSESIMOZDSHU-UHFFFAOYSA-N 3-(4,5-dihydroimidazol-1-yl)propyl-triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN1CCN=C1 WBUSESIMOZDSHU-UHFFFAOYSA-N 0.000 description 4
- SJIXRGNQPBQWMK-UHFFFAOYSA-N DEAEMA Natural products CCN(CC)CCOC(=O)C(C)=C SJIXRGNQPBQWMK-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 4
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- 239000002174 Styrene-butadiene Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 125000003342 alkenyl group Chemical group 0.000 description 4
- 125000004103 aminoalkyl group Chemical group 0.000 description 4
- ZSIQJIWKELUFRJ-UHFFFAOYSA-N azepane Chemical compound C1CCCNCC1 ZSIQJIWKELUFRJ-UHFFFAOYSA-N 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 3
- VNSCVITYYHPXKX-UHFFFAOYSA-N 2-(4-anilinophenyl)-3-phenylbut-2-enedioic acid Chemical compound C=1C=CC=CC=1C(C(=O)O)=C(C(O)=O)C(C=C1)=CC=C1NC1=CC=CC=C1 VNSCVITYYHPXKX-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 3
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 125000005370 alkoxysilyl group Chemical group 0.000 description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000007720 emulsion polymerization reaction Methods 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000006011 modification reaction Methods 0.000 description 3
- 125000002560 nitrile group Chemical group 0.000 description 3
- 150000002900 organolithium compounds Chemical class 0.000 description 3
- 238000007717 redox polymerization reaction Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 125000001302 tertiary amino group Chemical group 0.000 description 3
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical group CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- KFDVPJUYSDEJTH-UHFFFAOYSA-N 4-ethenylpyridine Chemical compound C=CC1=CC=NC=C1 KFDVPJUYSDEJTH-UHFFFAOYSA-N 0.000 description 2
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical class CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000004450 alkenylene group Chemical group 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical group CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 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 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010559 graft polymerization reaction Methods 0.000 description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical class CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- ZNZJJSYHZBXQSM-UHFFFAOYSA-N propane-2,2-diamine Chemical compound CC(C)(N)N ZNZJJSYHZBXQSM-UHFFFAOYSA-N 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 125000004076 pyridyl group Chemical group 0.000 description 2
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 230000003381 solubilizing effect Effects 0.000 description 2
- 125000005504 styryl group Chemical group 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- JPPHEZSCZWYTOP-UHFFFAOYSA-N trimethoxysilylmethyl prop-2-enoate Chemical compound CO[Si](OC)(OC)COC(=O)C=C JPPHEZSCZWYTOP-UHFFFAOYSA-N 0.000 description 2
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 2
- LTQBNYCMVZQRSD-UHFFFAOYSA-N (4-ethenylphenyl)-trimethoxysilane Chemical compound CO[Si](OC)(OC)C1=CC=C(C=C)C=C1 LTQBNYCMVZQRSD-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- UUZJJNBYJDFQHL-UHFFFAOYSA-N 1,2,3-triazolidine Chemical compound C1CNNN1 UUZJJNBYJDFQHL-UHFFFAOYSA-N 0.000 description 1
- IFPMZBBHBZQTOV-UHFFFAOYSA-N 1,3,5-trinitro-2-(2,4,6-trinitrophenyl)-4-[2,4,6-trinitro-3-(2,4,6-trinitrophenyl)phenyl]benzene Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C(C=2C(=C(C=3C(=CC(=CC=3[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)C(=CC=2[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)=C1[N+]([O-])=O IFPMZBBHBZQTOV-UHFFFAOYSA-N 0.000 description 1
- OVISMSJCKCDOPU-UHFFFAOYSA-N 1,6-dichlorohexane Chemical compound ClCCCCCCCl OVISMSJCKCDOPU-UHFFFAOYSA-N 0.000 description 1
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- GJZXSOICHJSMSN-UHFFFAOYSA-M butyl(prop-2-enoyloxy)tin Chemical compound C(C=C)(=O)O[Sn]CCCC GJZXSOICHJSMSN-UHFFFAOYSA-M 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 125000005047 dihydroimidazolyl group Chemical group N1(CNC=C1)* 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 125000002228 disulfide group Chemical group 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- SKCMXSHCLAODMQ-UHFFFAOYSA-N ethenyl(trimethyl)stannane Chemical compound C[Sn](C)(C)C=C SKCMXSHCLAODMQ-UHFFFAOYSA-N 0.000 description 1
- HQSGJAIZIMVKAS-UHFFFAOYSA-N ethenyl(trioctyl)stannane Chemical compound CCCCCCCC[Sn](CCCCCCCC)(CCCCCCCC)C=C HQSGJAIZIMVKAS-UHFFFAOYSA-N 0.000 description 1
- JCJXEBAQTMCZGK-UHFFFAOYSA-N ethenyl(triphenyl)stannane Chemical compound C=1C=CC=CC=1[Sn](C=1C=CC=CC=1)(C=C)C1=CC=CC=C1 JCJXEBAQTMCZGK-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 1
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- CCDUZOUQCSPYMJ-UHFFFAOYSA-N methyl 3-(4-anilinophenyl)prop-2-enoate Chemical compound C1=CC(C=CC(=O)OC)=CC=C1NC1=CC=CC=C1 CCDUZOUQCSPYMJ-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- BVBBZEKOMUDXMZ-UHFFFAOYSA-N n,n-diethyl-3-triethoxysilylpropan-1-amine Chemical compound CCO[Si](OCC)(OCC)CCCN(CC)CC BVBBZEKOMUDXMZ-UHFFFAOYSA-N 0.000 description 1
- ZLDHYRXZZNDOKU-UHFFFAOYSA-N n,n-diethyl-3-trimethoxysilylpropan-1-amine Chemical compound CCN(CC)CCC[Si](OC)(OC)OC ZLDHYRXZZNDOKU-UHFFFAOYSA-N 0.000 description 1
- RKOBOSOXEJGFTF-UHFFFAOYSA-N n,n-dimethyl-2-trimethoxysilylethanamine Chemical compound CO[Si](OC)(OC)CCN(C)C RKOBOSOXEJGFTF-UHFFFAOYSA-N 0.000 description 1
- AQIQPUUNTCVHBS-UHFFFAOYSA-N n,n-dimethyl-3-triethoxysilylpropan-1-amine Chemical compound CCO[Si](OCC)(OCC)CCCN(C)C AQIQPUUNTCVHBS-UHFFFAOYSA-N 0.000 description 1
- QIOYHIUHPGORLS-UHFFFAOYSA-N n,n-dimethyl-3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN(C)C QIOYHIUHPGORLS-UHFFFAOYSA-N 0.000 description 1
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 1
- SBRDEWUKACUNPY-UHFFFAOYSA-N n-(2-phenylethenyl)aniline Chemical compound C=1C=CC=CC=1NC=CC1=CC=CC=C1 SBRDEWUKACUNPY-UHFFFAOYSA-N 0.000 description 1
- GFSJJVJWCAMZEV-UHFFFAOYSA-N n-(4-anilinophenyl)-2-methylprop-2-enamide Chemical compound C1=CC(NC(=O)C(=C)C)=CC=C1NC1=CC=CC=C1 GFSJJVJWCAMZEV-UHFFFAOYSA-N 0.000 description 1
- DLAUQJZKDAKQGO-UHFFFAOYSA-N n-butyl-n-(3-triethoxysilylpropyl)butan-1-amine Chemical compound CCCCN(CCCC)CCC[Si](OCC)(OCC)OCC DLAUQJZKDAKQGO-UHFFFAOYSA-N 0.000 description 1
- HBTMDMMAFGLJKY-UHFFFAOYSA-N n-phenyl-4-(2-phenylethenyl)aniline Chemical compound C=1C=C(C=CC=2C=CC=CC=2)C=CC=1NC1=CC=CC=C1 HBTMDMMAFGLJKY-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl 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])[H] 0.000 description 1
- RPXYJNLRPQHGPD-UHFFFAOYSA-M octyl(prop-2-enoyloxy)tin Chemical compound C(C=C)(=O)O[Sn]CCCCCCCC RPXYJNLRPQHGPD-UHFFFAOYSA-M 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 125000001979 organolithium group Chemical group 0.000 description 1
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 description 1
- UCUUFSAXZMGPGH-UHFFFAOYSA-N penta-1,4-dien-3-one Chemical compound C=CC(=O)C=C UCUUFSAXZMGPGH-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 150000003022 phthalic acids Chemical class 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- ZBOZYQUPHVWBCE-UHFFFAOYSA-M prop-2-enoate;triphenylstannanylium Chemical compound [O-]C(=O)C=C.C1=CC=CC=C1[Sn+](C=1C=CC=CC=1)C1=CC=CC=C1 ZBOZYQUPHVWBCE-UHFFFAOYSA-M 0.000 description 1
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 229910052701 rubidium Inorganic materials 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
- 150000004756 silanes Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000004808 supercritical fluid chromatography Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 125000002813 thiocarbonyl group Chemical group *C(*)=S 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- QIWRFOJWQSSRJZ-UHFFFAOYSA-N tributyl(ethenyl)stannane Chemical compound CCCC[Sn](CCCC)(CCCC)C=C QIWRFOJWQSSRJZ-UHFFFAOYSA-N 0.000 description 1
- YLGRTLMDMVAFNI-UHFFFAOYSA-N tributyl(prop-2-enyl)stannane Chemical compound CCCC[Sn](CCCC)(CCCC)CC=C YLGRTLMDMVAFNI-UHFFFAOYSA-N 0.000 description 1
- LENYMJLFWIMHEP-UHFFFAOYSA-N triethoxy(3-pyrrolidin-1-ylpropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN1CCCC1 LENYMJLFWIMHEP-UHFFFAOYSA-N 0.000 description 1
- ZLIRFPKKZOBMRD-UHFFFAOYSA-N triethoxy(propyl)silane;hydrochloride Chemical compound Cl.CCC[Si](OCC)(OCC)OCC ZLIRFPKKZOBMRD-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- NGLLPRYTJGRGEU-UHFFFAOYSA-N trimethoxy(3-pyrrolidin-1-ylpropyl)silane Chemical compound CO[Si](OC)(OC)CCCN1CCCC1 NGLLPRYTJGRGEU-UHFFFAOYSA-N 0.000 description 1
- IYYAXTUFJCBGQP-UHFFFAOYSA-N trimethyl(prop-2-enyl)stannane Chemical compound C[Sn](C)(C)CC=C IYYAXTUFJCBGQP-UHFFFAOYSA-N 0.000 description 1
- KCIQERGKWPHONE-UHFFFAOYSA-M trimethylstannyl prop-2-enoate Chemical compound C[Sn+](C)C.[O-]C(=O)C=C KCIQERGKWPHONE-UHFFFAOYSA-M 0.000 description 1
- NDUYAGLANMHJHF-UHFFFAOYSA-N triphenyl(prop-2-enyl)stannane Chemical compound C=1C=CC=CC=1[Sn](C=1C=CC=CC=1)(CC=C)C1=CC=CC=C1 NDUYAGLANMHJHF-UHFFFAOYSA-N 0.000 description 1
- KVTDUVNUUSLFRR-UHFFFAOYSA-N tripropoxysilylmethyl prop-2-enoate Chemical compound CCCO[Si](OCCC)(OCCC)COC(=O)C=C KVTDUVNUUSLFRR-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
【解決手段】キャップゴム8及びベースゴム7を有するトレッド部3を具える重荷重用空気入りタイヤにおいて、キャップゴム8に、天然ゴム30〜80質量%、並びにスチレン-ブタジエン共重合体ゴム及び/又はポリブタジエンゴムからなるジエン系合成ゴム20〜70質量%を含み、前記天然ゴムが変性天然ゴムであるか、及び/又は前記ジエン系合成ゴムが変性ジエン系合成ゴムであるゴム成分(A)100質量部に対して、シリカ(B)10〜50質量部と、特定構造の硫黄含有シラン化合物(C)1〜6.5質量部とを配合してなるゴム組成物を用いる。
【選択図】図1
Description
天然ゴム30〜80質量%並びにスチレン-ブタジエン共重合体ゴム及び/又はポリブタジエンゴムからなるジエン系合成ゴム20〜70質量%を含み、前記天然ゴムが変性天然ゴムであるか、及び/又は前記ジエン系合成ゴムが変性ジエン系合成ゴムであるゴム成分(A)100質量部に対して、
シリカ(B)10〜50質量部と、
下記平均組成式(I):
(R1O)3-p(R2)pSi−R3−Sm−R4−Sm−R3−Si(R2)p(OR1)3-p ・・・ (I)
[式中、R1及びR2はそれぞれ炭素数1〜4の1価の炭化水素基、R3は炭素数1〜15の2価の炭化水素基、pは0〜2の整数、mは平均値として1以上4未満、R4は下記一般式(II)、(III)及び(IV):
S−R5−S ・・・ (II)
R6−Sx−R7 ・・・ (III)
R8−Sy−R9−Sz−R10 ・・・ (IV)
(式中、R5〜R10は直鎖状又は分岐を有する炭素数1〜20の2価の炭化水素基、2価の芳香族基又は硫黄及び酸素以外のヘテロ元素を含む2価の有機基であって、R5〜R10はそれぞれ同一でも異なってもよく、x,y,zはそれぞれ平均値として1以上4未満である)のいずれかで表される二価の官能基である]で表される硫黄含有シラン化合物(C)1〜6.5質量部とを配合してなるゴム組成物を用いたことを特徴とする。
(AM)Li(Q)a ・・・ (VII)
[式中、aは0又は0.5〜3であり、(Q)は、炭化水素、エーテル類、アミン類及びそれらの混合物からなる群から選択される可溶化成分であり、(AM)は上記式(V)で表される置換アミノ基又は式(VI)で表される環状アミノ基である]で表されるリチオアミンを重合開始剤として上記モノマーを(共)重合させることで、式(V)の置換アミノ基又は式(VI)の環状アミノ基が導入された変性ブタジエン系ゴムが得られる。
R13Li ・・・ (VIII)
[式中、R13は、炭素数1〜約20のアルキル基、シクロアルキル基、アルケニル基、アリール基及びアラルキル基、並びにジオレフィン及びビニルアリールモノマー類から得られる25個以下の単位を有する短鎖長の低分子量ポリマー類からなる群から選択される]で表される化合物が好ましい。ここで、アルキル基としては、n-ブチル基、s-ブチル基、メチル基、エチル基、イソプロピル基等が挙げられ、シクロアルキル基としては、シクロヘキシル基、メンチル基等が挙げられ、アルケニル基としては、アリル基、ビニル基等が挙げられる。また、アリール基及びアラルキル基としては、フェニル基、ベンジル基、オリゴ(スチリル)基等が挙げられ、短鎖長ポリマー類としては、適当なモノマーのオリゴマー化を有機リチウムで開始させることによって生じさせたオリゴ(ブタジエニル)類、オリゴ(イソプレニル)類、オリゴ(スチリル)類等が挙げられる。上記有機リチウム化合物としては、n-ブチルリチウムが好ましい。式(VII)のリチオアミンを生成させるに際しては、特開平6−199921号公報等に開示されているin situ法を用いることもできる。
R14M ・・・ (IX)
R15OM ・・・ (X)
R16C(O)OM ・・・ (XI)
R17R18NM ・・・ (XII)
R19SO3M ・・・ (XIII)
[式中、R14、R15、R16、R17、R18、及びR19は、それぞれ炭素数1〜12のアルキル基、シクロアルキル基、アルケニル基、アリール基又はフェニル基であり、Mは、Na、K、Rb又はCsである]で表される化合物が好ましい。ここで、金属成分Mとしては、Na及びKが特に好ましい。リチオアミンと有機アルカリ金属化合物からなる開始剤混合物は、好適には、該リチオアミン開始剤中のリチウム1当量当たり約0.02〜約0.5当量の有機アルカリ金属化合物を含有するのが好ましい。
窒素ガス導入管、温度計、ジムロート型コンデンサー及び滴下ロートを備えた0.5リットルのセパラブルフラスコに、エタノール80g、無水硫化ソーダ5.46g(0.07モル)、硫黄2.24g(0.07モル)を仕込み、80℃に昇温した。この溶液を撹拌しながら、塩化プロピルトリエトキシシラン[(CH3CH2O)3Si−(CH2)3−Cl]33.7g(0.14モル)及び1,6-ジクロロヘキサン[ClCH2−(CH2)4−CH2Cl]10.8g(0.07モル)をゆっくり滴下した。滴下終了後、80℃にて10時間撹拌を続けた。撹拌終了後、冷却し、生成した塩を濾別した後、溶媒のエタノールを減圧蒸留した。得られた溶液を赤外線吸収スペクトル分析(IR分析)、1H核磁気共鳴スペクトル分析(1H-NMR分析)及び超臨界クロマトグラフィー分析を行った結果、平均組成式:(CH3CH2O)3Si−(CH2)3−S−S−(CH2)6−S−S−(CH2)3−Si(OCH2CH3)3で表される化合物であることを確認した。即ち、平均組成式(I)において、R1がエチル基、R3がトリメチレン基、R4がS−(CH2)6−S[一般式(II)に該当し、R5が(CH2)6である]、p=0及びm=1であった。このもののゲルパーミエーションクロマトグラフ分析(GPC分析)における純度は82.5%であった。
(天然ゴムラテックスの変性反応工程)
フィールドラテックスをラテックスセパレーター[斎藤遠心工業製]を用いて回転数7500rpmで遠心分離して、乾燥ゴム濃度60%の濃縮ラテックスを得た。この濃縮ラテックス1000gを、撹拌機及び温調ジャケットを備えたステンレス製反応容器に投入し、予め10mLの水と90mgの乳化剤[エマルゲン1108,花王株式会社製]をN,N-ジエチルアミノエチルメタクリレート 3.0gに加えて乳化したものを990mLの水と共に添加し、これらを窒素置換しながら常温で30分間撹拌した。次に、重合開始剤としてtert-ブチルハイドロパーオキサイド 1.2gとテトラエチレンペンタミン 1.2gとを加え、40℃で30分間反応させることにより、変性天然ゴムラテックスを得た。
上記変性天然ゴムラテックスにギ酸を加えpHを4.7に調整し、変性天然ゴムラテックスを凝固させた。このようにして得られた固形物をクレーパーで5回処理し、シュレッダーに通してクラム化した後、熱風式乾燥機により110℃で210分間乾燥して変性天然ゴム(変性NR)を得た。このようにして得られた変性NRの質量から、単量体として加えたN,N-ジエチルアミノエチルメタクリレートの転化率が100%であることが確認された。また、該変性NRを石油エーテルで抽出し、更にアセトンとメタノールの2:1混合溶媒で抽出することによりホモポリマーの分離を試みたが、抽出物を分析したところホモポリマーは検出されず、添加した単量体の100%が天然ゴム分子に導入されていることが確認された。従って、得られた変性NRにおける単量体のグラフト量は、天然ゴムラテックス中のゴム成分に対して0.5質量%である。
乾燥し、窒素置換された800mLの耐圧ガラス容器に、シクロヘキサン300g、1,3-ブタジエン単量体50g、テトラヒドロフラン(THF)1mmolを注入し、これに0.55mmolのn-ブチルリチウムを加えた後、ヘキサメチレンイミン0.5mmolを速やかに加え、50℃で2時間重合を行った。重合系は重合開始から終了まで、全く沈澱は見られず均一に透明であった。重合転化率は、ほぼ100%であった。この重合系にさらに変性剤としてN-(3-トリエトキシシリルプロピル)-4,5-ジヒドロイミダゾールを0.55mmolを加えた後、さらに30分間変性反応を行った。その後、重合系に、2,6-ジ(t-ブチル)パラクレゾール(BHT)のイソプロパノール溶液(BHT濃度:5質量%)0.5mLを加えて、重合反応を停止させ、更に常法に従って乾燥して変性ポリブタジエンゴム(変性BR)を得た。
乾燥し、窒素置換された800mLの耐圧ガラス容器に、シクロヘキサン300g、1,3-ブタジエン単量体40g、スチレン単量体10g、ジテトラヒドロフリルプロパン0.16mmolを注入し、これにn-ブチルリチウム0.55mmolを加えた後、ヘキサメチレンイミン0.5mmolを速やかに加え、50℃で1.5時間重合を行った。重合転化率はほぼ100%であった。この重合系にさらに変性剤としてN-(3-トリエトキシシリルプロピル)-4,5-ジヒドロイミダゾール0.55mmolを加え、30分間変性反応を行った。その後、重合系に、2,6-ジ(t-ブチル)パラクレゾール(BHT)のイソプロパノール溶液(BHT濃度:5質量%)0.5mLを加えて、重合反応を停止させ、更に常法に従って乾燥して変性スチレン-ブタジエン共重合体ゴム(変性SBR)を得た。
次に、上記のようにして製造した硫黄含有シラン化合物、変性NR、変性BR、変性SBRを用いて、表1に示す配合のゴム組成物を常法に従って調製し、該ゴム組成物をキャップゴムに用いて、図1に示す構造を有し、サイズ11R22.5の重荷重用空気入りタイヤを製造した。次に、得られたタイヤに対して、下記の方法で転がり抵抗及び耐摩耗性を評価した。結果を表1に示す。
時速80kmでドラム上を走行させて、転がり抵抗を測定し、コントロール(比較例2)の値を100として、指数で表示した。指数値が小さい程、転がり抵抗が小さいことを示す。
タイヤをトラックのドライブ軸に装着し、残溝5mmまでの走行距離を、コントロール(比較例2)の値を100とし、指数で表示した。指数値が大きい程、完摩までのライフが長いことを示す。
*2 上記製造例で得た変性天然ゴム
*3 宇部興産社製「UBEPOL, BR150L」
*4 上記製造例で得た変性ポリブタジエンゴム
*5 上記製造例で得た変性スチレン-ブタジエン共重合体ゴム
*6 N110, SAF級カーボンブラック
*7 日本シリカ社製「ニプシルAQ」
*8 デグッサ社製「Si69」
*9 上記製造例で得た硫黄含有シラン化合物
*10 N-シクロヘキシル-2-ベンゾチアジルスルフェンアミド
2 サイド部
3 トレッド部
4 ビードコア
5 カーカス
6 ベルト
7 ベースゴム
8 キャップゴム
Claims (3)
- キャップゴム及びベースゴムを有するトレッド部を具える重荷重用空気入りタイヤにおいて、
天然ゴム30〜80質量%、並びにスチレン-ブタジエン共重合体ゴム及び/又はポリブタジエンゴムからなるジエン系合成ゴム20〜70質量%を含み、前記天然ゴムが変性天然ゴムであるか、及び/又は前記ジエン系合成ゴムが変性ジエン系合成ゴムであるゴム成分(A)100質量部に対して、
シリカ(B)10〜50質量部と、
下記平均組成式(I):
(R1O)3-p(R2)pSi−R3−Sm−R4−Sm−R3−Si(R2)p(OR1)3-p ・・・ (I)
[式中、R1及びR2はそれぞれ炭素数1〜4の1価の炭化水素基、R3は炭素数1〜15の2価の炭化水素基、pは0〜2の整数、mは平均値として1以上4未満、R4は下記一般式(II)、(III)及び(IV):
S−R5−S ・・・ (II)
R6−Sx−R7 ・・・ (III)
R8−Sy−R9−Sz−R10 ・・・ (IV)
(式中、R5〜R10は直鎖状又は分岐を有する炭素数1〜20の2価の炭化水素基、2価の芳香族基又は硫黄及び酸素以外のヘテロ元素を含む2価の有機基であって、R5〜R10はそれぞれ同一でも異なってもよく、x,y,zはそれぞれ平均値として1以上4未満である)のいずれかで表される二価の官能基である]で表される硫黄含有シラン化合物(C)1〜6.5質量部とを配合してなるゴム組成物を前記キャップゴムに用いたことを特徴とする重荷重用空気入りタイヤ。 - 前記変性天然ゴムが、天然ゴムラテックスに極性基含有単量体を添加し、該極性基含有単量体を天然ゴムラテックス中の天然ゴム分子にグラフト重合させ、更に凝固及び乾燥して得た変性天然ゴムであることを特徴とする請求項1に記載の重荷重用空気入りタイヤ。
- 前記変性ジエン系合成ゴムが、1,3-ブタジエンの単独重合体又は1,3-ブタジエンとスチレンとの共重合体であって、該(共)重合体中のスチレン結合量が10質量%以下で、且つ下記式(V):
[式中、R11は、それぞれ独立して炭素数1〜12のアルキル基、シクロアルキル基又はアラルキル基である]で表される置換アミノ基、及び下記式(VI):
[式中、R12は、3〜16のメチレン基を有するアルキレン基、置換アルキレン基、オキシアルキレン基又はN-アルキルアミノ-アルキレン基を示す]で表される環状アミノ基からなる群から選択される少なくとも一種の官能基を有する変性ブタジエン系ゴムであることを特徴とする請求項1に記載の重荷重用空気入りタイヤ。
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| JP2015057499A (ja) * | 2008-04-29 | 2015-03-26 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | アミノアルコキシシラン基によりカップリングさせたジエンエラストマーを主として含むエラストマー混合物、該混合物を含むゴム組成物、および該組成物の取得方法 |
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