JP6348348B2 - 夏用タイヤ - Google Patents
夏用タイヤ Download PDFInfo
- Publication number
- JP6348348B2 JP6348348B2 JP2014123595A JP2014123595A JP6348348B2 JP 6348348 B2 JP6348348 B2 JP 6348348B2 JP 2014123595 A JP2014123595 A JP 2014123595A JP 2014123595 A JP2014123595 A JP 2014123595A JP 6348348 B2 JP6348348 B2 JP 6348348B2
- Authority
- JP
- Japan
- Prior art keywords
- mass
- farnesene
- parts
- less
- vinyl monomer
- 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.)
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- JSNRRGGBADWTMC-UHFFFAOYSA-N (6E)-7,11-dimethyl-3-methylene-1,6,10-dodecatriene Chemical compound CC(C)=CCCC(C)=CCCC(=C)C=C JSNRRGGBADWTMC-UHFFFAOYSA-N 0.000 claims description 159
- CXENHBSYCFFKJS-UHFFFAOYSA-N (3E,6E)-3,7,11-Trimethyl-1,3,6,10-dodecatetraene Natural products CC(C)=CCCC(C)=CCC=C(C)C=C CXENHBSYCFFKJS-UHFFFAOYSA-N 0.000 claims description 82
- 229930009668 farnesene Natural products 0.000 claims description 79
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 55
- 229920001971 elastomer Polymers 0.000 claims description 34
- 239000005060 rubber Substances 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 33
- 229920005989 resin Polymers 0.000 claims description 33
- 239000000178 monomer Substances 0.000 claims description 32
- 229920001577 copolymer Polymers 0.000 claims description 27
- 239000000377 silicon dioxide Substances 0.000 claims description 27
- 229920002554 vinyl polymer Polymers 0.000 claims description 23
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 18
- 244000005700 microbiome Species 0.000 claims description 18
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene group Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229920001519 homopolymer Polymers 0.000 claims description 11
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- 238000001179 sorption measurement Methods 0.000 claims description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 8
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- 229920002857 polybutadiene Polymers 0.000 claims description 7
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- 229920003052 natural elastomer Polymers 0.000 claims description 6
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- 229910052799 carbon Inorganic materials 0.000 claims description 3
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- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
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- 229960002447 thiram Drugs 0.000 description 3
- 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 3
- 239000002023 wood Substances 0.000 description 3
- JSNRRGGBADWTMC-QINSGFPZSA-N (E)-beta-Farnesene Natural products CC(C)=CCC\C(C)=C/CCC(=C)C=C JSNRRGGBADWTMC-QINSGFPZSA-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
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 2
- QEDJMOONZLUIMC-UHFFFAOYSA-N 1-tert-butyl-4-ethenylbenzene Chemical compound CC(C)(C)C1=CC=C(C=C)C=C1 QEDJMOONZLUIMC-UHFFFAOYSA-N 0.000 description 2
- IABJHLPWGMWHLX-UHFFFAOYSA-N 3-(1,3-benzothiazol-2-yl)propyl-trimethoxysilane Chemical compound C1=CC=C2SC(CCC[Si](OC)(OC)OC)=NC2=C1 IABJHLPWGMWHLX-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241000206602 Eukaryota Species 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 240000006394 Sorghum bicolor Species 0.000 description 2
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- 235000021355 Stearic acid Nutrition 0.000 description 2
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
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- 238000005119 centrifugation Methods 0.000 description 2
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- 150000001993 dienes Chemical class 0.000 description 2
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 2
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
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- QLLUAUADIMPKIH-UHFFFAOYSA-N 1,2-bis(ethenyl)naphthalene Chemical compound C1=CC=CC2=C(C=C)C(C=C)=CC=C21 QLLUAUADIMPKIH-UHFFFAOYSA-N 0.000 description 1
- OUSXYCTXXLYBGJ-UHFFFAOYSA-N 1-ethenyl-2,4-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=C(C=C)C(C(C)C)=C1 OUSXYCTXXLYBGJ-UHFFFAOYSA-N 0.000 description 1
- OEVVKKAVYQFQNV-UHFFFAOYSA-N 1-ethenyl-2,4-dimethylbenzene Chemical compound CC1=CC=C(C=C)C(C)=C1 OEVVKKAVYQFQNV-UHFFFAOYSA-N 0.000 description 1
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- HDTRYLNUVZCQOY-WSWWMNSNSA-N Trehalose Natural products O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-WSWWMNSNSA-N 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 239000005862 Whey Substances 0.000 description 1
- 102000007544 Whey Proteins Human genes 0.000 description 1
- 108010046377 Whey Proteins Proteins 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- HDTRYLNUVZCQOY-LIZSDCNHSA-N alpha,alpha-trehalose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-LIZSDCNHSA-N 0.000 description 1
- HMFHBZSHGGEWLO-UHFFFAOYSA-N alpha-D-Furanose-Ribose Natural products OCC1OC(O)C(O)C1O HMFHBZSHGGEWLO-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010539 anionic addition polymerization reaction Methods 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 235000021016 apples Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- YSNRTFFURISHOU-UHFFFAOYSA-N beta-farnesene Natural products C=CC(C)CCC=C(C)CCC=C(C)C YSNRTFFURISHOU-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 description 1
- 238000012661 block copolymerization Methods 0.000 description 1
- PBGVMIDTGGTBFS-UHFFFAOYSA-N but-3-enylbenzene Chemical compound C=CCCC1=CC=CC=C1 PBGVMIDTGGTBFS-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 1
- GSYVJAOBRKCNOT-UHFFFAOYSA-N diethoxymethyl-[3-[3-(diethoxymethylsilyl)propyltetrasulfanyl]propyl]silane Chemical compound CCOC(OCC)[SiH2]CCCSSSSCCC[SiH2]C(OCC)OCC GSYVJAOBRKCNOT-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- JRYKZUSRJQZKOY-UHFFFAOYSA-M dizinc octadecanoate oxygen(2-) Chemical compound C(CCCCCCCCCCCCCCCCC)(=O)[O-].[Zn+2].[O-2].[Zn+2] JRYKZUSRJQZKOY-UHFFFAOYSA-M 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229930182830 galactose Natural products 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229940096919 glycogen Drugs 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000009629 microbiological culture Methods 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 239000006870 ms-medium Substances 0.000 description 1
- SYUYXOYNRMMOGW-UHFFFAOYSA-N n,n-dimethyl-3-phenylprop-2-en-1-amine Chemical compound CN(C)CC=CC1=CC=CC=C1 SYUYXOYNRMMOGW-UHFFFAOYSA-N 0.000 description 1
- UBHHTPOLMACCDD-UHFFFAOYSA-N n,n-dimethyl-4-phenylbut-3-en-1-amine Chemical compound CN(C)CCC=CC1=CC=CC=C1 UBHHTPOLMACCDD-UHFFFAOYSA-N 0.000 description 1
- DZRKBPWATCKLKY-UHFFFAOYSA-N n-benzyl-n-methylprop-2-en-1-amine Chemical compound C=CCN(C)CC1=CC=CC=C1 DZRKBPWATCKLKY-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 235000020183 skimmed milk Nutrition 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 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 1
- 238000010059 sulfur vulcanization Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000006234 thermal black Substances 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
- KLFNHRIZTXWZHT-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltrisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSCCC[Si](OCC)(OCC)OCC KLFNHRIZTXWZHT-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
- JTTSZDBCLAKKAY-UHFFFAOYSA-N trimethoxy-[3-(3-trimethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CO[Si](OC)(OC)CCCSSSSCCC[Si](OC)(OC)OC JTTSZDBCLAKKAY-UHFFFAOYSA-N 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 239000007218 ym medium Substances 0.000 description 1
- 239000007222 ypd medium Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Tires In General (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
これらのゴム成分としては特に限定されず、タイヤ工業において一般的なものを使用できる。
なお、本明細書において、シス含量は、赤外吸収スペクトル分析法によって測定できる。
同様の理由から、ファルネセン−スチレン共重合体のTgは、好ましくは−15℃以下、より好ましくは−30℃以下であり、好ましくは−80℃以上、より好ましくは−70℃以上である。
同様の理由から、ファルネセン−ブタジエン共重合体のTgは、好ましくは−60℃以下、より好ましくは−70℃以下であり、好ましくは−120℃以上、より好ましくは−110℃以上である。
なお、Tgは、JIS−K7121:1987に従い、ティー・エイ・インスツルメント・ジャパン社製の示差走査熱量計(Q200)を用いて、昇温速度10℃/分の条件で測定した値である。
同様の理由から、ファルネセン−ビニルモノマー共重合体の溶融粘度は、好ましくは1000Pa・s以下、より好ましくは650Pa・s以下、更に好ましくは200Pa・s以下であり、好ましくは1Pa・s以上、より好ましくは5Pa・s以上である。
なお、溶融粘度は、ブルックフィールド型粘度計(BROOKFIELD ENGINEERING LABS.INC.製)を用いて、38℃で測定した値である。
なお、シリカのN2SAは、ASTM D3037−81に準じて測定される値である。
NR:TSR20
BR:宇部興産(株)製のウベポールBR150B(シス含量:97質量%)
SBR:旭化成(株)製のアサプレン1205(スチレン含量:25質量%)
シリカ:デグッサ社製のウルトラシルVN3−G(N2SA:175m2/g)
シランカップリング剤:デグッサ社製のSi69(ビス(3−トリエトキシシリルプロピル)テトラスルフィド)
カーボンブラック:三菱化学(株)製のダイアブラックN339(N2SA:96m2/g、DBP吸収量:124ml/100g)
オイル:(株)ジャパンエナジー製のX−140(アロマオイル)
老化防止剤:住友化学(株)製のアンチゲン3C
ステアリン酸:日油(株)製のビーズステアリン酸つばき
酸化亜鉛:三井金属鉱業(株)製の亜鉛華1号
ワックス:大内新興化学工業(株)製のサンノックN
ファルネセン単独重合体1:(株)クラレ製のKB−101(Mw:10000、溶融粘度:0.7Pa・s、Tg:−72℃)
ファルネセン単独重合体2:(株)クラレ製のKB−107(Mw:135000、溶融粘度:69Pa・s、Tg:−71℃)
ファルネセン−スチレン共重合体1:(株)クラレ製のFSR−221(Mw:10000、質量基準の共重合比:ファルネセン/スチレン=77/23、溶融粘度:5.7Pa・s、Tg:−54℃)
ファルネセン−スチレン共重合体2:(株)クラレ製のFSR−242(Mw:10000、質量基準の共重合比:ファルネセン/スチレン=60/40、溶融粘度:59.2Pa・s、Tg:−35℃)
ファルネセン−ブタジエン共重合体1:(株)クラレ製のFBR−746(Mw:100000、質量基準の共重合比:ファルネセン/ブタジエン=60/40、溶融粘度:603Pa・s、Tg:−78℃)
ファルネセン−ブタジエン共重合体2:(株)クラレ製のFB−823(Mw:50000、質量基準の共重合比:ファルネセン/ブタジエン=80/20、溶融粘度:13Pa・s、Tg=−78℃)
硫黄:鶴見化学工業(株)製の粉末硫黄
加硫促進剤1:住友化学(株)製のソクシノールCZ
加硫促進剤2:住友化学(株)製のソクシノールD
表1〜3に示す配合内容に従い、(株)神戸製鋼所製の1.7Lバンバリーミキサーを用いて、硫黄及び加硫促進剤以外の材料を150℃の条件下で5分間混練りし、混練り物を得た。次に、得られた混練り物に硫黄及び加硫促進剤を添加し、オープンロールを用いて、80℃の条件下で5分間練り込み、未加硫ゴム組成物を得た。得られた未加硫ゴム組成物を170℃で12分間、0.5mm厚の金型でプレス加硫し、加硫ゴム組成物を得た。また、得られた未加硫ゴム組成物をトレッドの形状に成形し、タイヤ成型機上で他のタイヤ部材とともに貼り合わせて未加硫タイヤを形成し、170℃で12分間加硫し、試験用タイヤ(サイズ:195/65R15)を製造した。
シート状の加硫ゴム組成物を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%の条件下で各配合のtanδを測定し、比較例1のtanδを100として、下記計算式により指数表示した。指数が大きいほど低燃費性が優れる。
(低燃費性指数)=(比較例1のtanδ)/(各配合のtanδ)×100
シート状の加硫ゴム組成物を粘弾性スペクトロメーターVES((株)岩本製作所製)を用いて、周波数10Hz、動歪み0.1%、温度0℃の条件下で各配合のtanδを測定し、比較例1のtanδを100として、下記計算式により指数表示した。指数が大きいほどウェットグリップ性能に優れる。
(ウェットグリップ性能指数)=(各配合のtanδ)/(比較例1のtanδ)×100
オゾン50pphm、40℃で1週間放置した後の試験用タイヤについて、色差計を用いて黒色度を測定し、タイヤ表面の変色(白変及び茶変)を下記基準で評価した。
5:変色なし
4:若干変色
3:変色部位が全体の半分未満
2:変色部位が全体の半分以上
1:全面的に変色
上記試験用タイヤを排気量2500ccの乗用車に装着し、1周3kmのコースを蛇行しながら走行し、ハンドリング性能を以下に示す基準で官能評価した。
5点を基準とし、
6.5点:明らかに感知できる程度良い
6点:十分に感知できる程度良い
5.5点:わずかに感知できる程度良い
4.5点:わずかに感知できる程度悪い
4点:十分に感知できる程度悪い
3.5点:明らかに感知できる程度悪い
ランボーン型摩耗試験機を用いて、室温、負荷荷重1.0kgf、スリップ率30%の条件で摩耗量を測定した。摩耗量の逆数を、比較例1を100として指数表示をした。数値が大きいほど耐摩耗性が高いことを示す。
Claims (8)
- ゴム成分100質量%中、天然ゴムの含有量が5〜35質量%、ブタジエンゴムの含有量が5〜35質量%、スチレンブタジエンゴムの含有量が35〜85質量%であり、ゴム成分100質量部に対して、重量平均分子量が1000〜500000のファルネセン系樹脂を1〜50質量部、窒素吸着比表面積が40〜400m2/gのシリカを10〜150質量部含有するゴム組成物を用いて作製したトレッドを有する夏用タイヤ。
- 前記ファルネセン系樹脂がファルネセンの単独重合体である請求項1記載の夏用タイヤ。
- 前記ファルネセン系樹脂がファルネセンとビニルモノマーとの共重合体である請求項1記載の夏用タイヤ。
- 前記ビニルモノマーがスチレンである請求項3記載の夏用タイヤ。
- 前記ビニルモノマーがブタジエンである請求項3記載の夏用タイヤ。
- 前記共重合体における前記ファルネセンと前記ビニルモノマーとの共重合比が、質量基準で、ファルネセン/ビニルモノマー=99/1〜25/75である請求項3〜5のいずれかに記載の夏用タイヤ。
- 前記共重合体の38℃における溶融粘度が1000Pa・s以下である請求項3〜6のいずれかに記載の夏用タイヤ。
- 前記ファルネセン系樹脂が、糖から誘導される炭素源を用いて微生物を培養することによって調製されたファルネセンを重合して得られるものである請求項1〜7のいずれかに記載の夏用タイヤ。
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JP2018131502A (ja) * | 2017-02-14 | 2018-08-23 | 株式会社クラレ | 乗用車用サマータイヤのトレッド用ゴム組成物 |
JP2018131501A (ja) * | 2017-02-14 | 2018-08-23 | 株式会社クラレ | 高グリップタイヤトレッド用ゴム組成物 |
US10457752B2 (en) * | 2017-06-07 | 2019-10-29 | Fina Technology, Inc. | Silane functionalized poly (farnesene) and rubber compound comprising the same |
JP7225620B2 (ja) * | 2017-09-29 | 2023-02-21 | 住友ゴム工業株式会社 | タイヤ |
JP7069688B2 (ja) * | 2017-12-18 | 2022-05-18 | 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 |
JP7331332B2 (ja) * | 2018-01-29 | 2023-08-23 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物およびタイヤ |
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US8217128B2 (en) * | 2008-09-04 | 2012-07-10 | Amyris, Inc. | Farnesene interpolymers |
RU2617481C2 (ru) * | 2012-02-24 | 2017-04-25 | Курарей Ко., Лтд. | Резиновая композиция и шина |
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