WO2009123229A1 - フィルム、タイヤ用インナーライナー及びそれを用いたタイヤ - Google Patents
フィルム、タイヤ用インナーライナー及びそれを用いたタイヤ Download PDFInfo
- Publication number
- WO2009123229A1 WO2009123229A1 PCT/JP2009/056735 JP2009056735W WO2009123229A1 WO 2009123229 A1 WO2009123229 A1 WO 2009123229A1 JP 2009056735 W JP2009056735 W JP 2009056735W WO 2009123229 A1 WO2009123229 A1 WO 2009123229A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- film according
- layer
- resin composition
- film
- Prior art date
Links
- 239000011342 resin composition Substances 0.000 claims abstract description 80
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 73
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical class OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000010410 layer Substances 0.000 claims description 155
- 229920001971 elastomer Polymers 0.000 claims description 49
- 239000000806 elastomer Substances 0.000 claims description 31
- 229920000642 polymer Polymers 0.000 claims description 31
- 150000001875 compounds Chemical class 0.000 claims description 22
- 239000004593 Epoxy Substances 0.000 claims description 20
- 239000012790 adhesive layer Substances 0.000 claims description 18
- 229920005549 butyl rubber Polymers 0.000 claims description 18
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 125000000524 functional group Chemical group 0.000 claims description 15
- 229920003244 diene elastomer Polymers 0.000 claims description 13
- -1 alkoxysilane Substances 0.000 claims description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 11
- 229910052796 boron Inorganic materials 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 10
- 239000005977 Ethylene Substances 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 8
- 229920005555 halobutyl Polymers 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 238000007127 saponification reaction Methods 0.000 claims description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 5
- 150000001336 alkenes Chemical group 0.000 claims description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 5
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- 229920006311 Urethane elastomer Polymers 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- 150000002540 isothiocyanates Chemical class 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract description 30
- 230000014759 maintenance of location Effects 0.000 abstract description 21
- 238000005336 cracking Methods 0.000 abstract description 3
- 239000003190 viscoelastic substance Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 22
- 239000007789 gas Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 18
- 239000005060 rubber Substances 0.000 description 18
- 229920003048 styrene butadiene rubber Polymers 0.000 description 16
- 238000005452 bending Methods 0.000 description 15
- 239000002174 Styrene-butadiene Substances 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 13
- 238000003786 synthesis reaction Methods 0.000 description 13
- 229920000459 Nitrile rubber Polymers 0.000 description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 12
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 12
- 238000010894 electron beam technology Methods 0.000 description 11
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000005062 Polybutadiene Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 9
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 9
- 229920002857 polybutadiene Polymers 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 244000043261 Hevea brasiliensis Species 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229920003052 natural elastomer Polymers 0.000 description 8
- 229920001194 natural rubber Polymers 0.000 description 8
- 125000005620 boronic acid group Chemical group 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- 229920000098 polyolefin Polymers 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003377 acid catalyst Substances 0.000 description 3
- 229920005557 bromobutyl Polymers 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001993 dienes Chemical class 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- JBAUPCNQUQGXJT-UHFFFAOYSA-N 1-ethenyl-4-methylbenzene;2-methylprop-1-ene Chemical class CC(C)=C.CC1=CC=C(C=C)C=C1 JBAUPCNQUQGXJT-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 229940125904 compound 1 Drugs 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 229920003049 isoprene rubber Polymers 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- CLNYHERYALISIR-UHFFFAOYSA-N nona-1,3-diene Chemical compound CCCCCC=CC=C CLNYHERYALISIR-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920006124 polyolefin elastomer Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- GXDMUOPCQNLBCZ-UHFFFAOYSA-N 3-(3-triethoxysilylpropyl)oxolane-2,5-dione Chemical compound CCO[Si](OCC)(OCC)CCCC1CC(=O)OC1=O GXDMUOPCQNLBCZ-UHFFFAOYSA-N 0.000 description 1
- FVCSARBUZVPSQF-UHFFFAOYSA-N 5-(2,4-dioxooxolan-3-yl)-7-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C(C(OC2=O)=O)C2C(C)=CC1C1C(=O)COC1=O FVCSARBUZVPSQF-UHFFFAOYSA-N 0.000 description 1
- HMUJOIKMUAQZQZ-UHFFFAOYSA-N B(OC1CCCCC1)OC1CCCCC1 Chemical group B(OC1CCCCC1)OC1CCCCC1 HMUJOIKMUAQZQZ-UHFFFAOYSA-N 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- FGMZCSZIFQZIKC-UHFFFAOYSA-N CCCCOBOCCCC Chemical group CCCCOBOCCCC FGMZCSZIFQZIKC-UHFFFAOYSA-N 0.000 description 1
- CZASJXVOMKVOGD-UHFFFAOYSA-N CCOBOCC Chemical group CCOBOCC CZASJXVOMKVOGD-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- HELFUSSVIADALN-UHFFFAOYSA-N [K+].[K+].[O-]B[O-] Chemical compound [K+].[K+].[O-]B[O-] HELFUSSVIADALN-UHFFFAOYSA-N 0.000 description 1
- AVAYCNNAMOJZHO-UHFFFAOYSA-N [Na+].[Na+].[O-]B[O-] Chemical compound [Na+].[Na+].[O-]B[O-] AVAYCNNAMOJZHO-UHFFFAOYSA-N 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- WXCZUWHSJWOTRV-UHFFFAOYSA-N but-1-ene;ethene Chemical compound C=C.CCC=C WXCZUWHSJWOTRV-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 229920005556 chlorobutyl Polymers 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- VAWRKITUPUFMHV-UHFFFAOYSA-N dimethoxyborane Chemical group COBOC VAWRKITUPUFMHV-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- HEAMQYHBJQWOSS-UHFFFAOYSA-N ethene;oct-1-ene Chemical compound C=C.CCCCCCC=C HEAMQYHBJQWOSS-UHFFFAOYSA-N 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000004820 halides Chemical class 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
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- ZBKFYXZXZJPWNQ-UHFFFAOYSA-N isothiocyanate group Chemical group [N-]=C=S ZBKFYXZXZJPWNQ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- YCIMNLLNPGFGHC-UHFFFAOYSA-N o-dihydroxy-benzene Natural products OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 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
- 239000008188 pellet Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- B60C1/0008—Compositions of the inner liner
-
- 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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
- B60C5/14—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/02—Alkylation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
- B60C5/14—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
- B60C2005/145—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre made of laminated layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
- C08F216/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an alcohol radical
- C08F216/04—Acyclic compounds
- C08F216/06—Polyvinyl alcohol ; Vinyl alcohol
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
- C08L23/0853—Ethene vinyl acetate copolymers
- C08L23/0861—Saponified copolymers, e.g. ethene vinyl alcohol copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31573—Next to addition polymer of ethylenically unsaturated monomer
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
- Y10T428/3192—Next to vinyl or vinylidene chloride polymer
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31924—Including polyene monomers
Definitions
- the present invention is excellent in gas barrier properties and bending resistance, can reduce the weight of the tire while improving the internal pressure retention property of the tire when new and after running, and further cracks during running at low temperatures such as in winter.
- the present invention relates to a film that can be used for an innerliner for a tire that can exhibit barrier properties.
- a rubber composition mainly composed of butyl rubber, halogenated butyl rubber or the like is used for an inner liner disposed as an air barrier layer on the inner surface of the tire in order to maintain the internal pressure of the tire.
- these rubber compositions using butyl rubber as the main raw material have low air barrier properties, so when such a rubber composition is used for the inner liner, the thickness of the inner liner has to be about 1 mm. Therefore, the weight of the inner liner in the tire is about 5%, which is an obstacle to improving the fuel efficiency of automobiles, agricultural vehicles, construction vehicles, etc. by reducing the weight of the tires.
- an ethylene-vinyl alcohol copolymer (hereinafter sometimes abbreviated as EVOH) is known to have excellent gas barrier properties. Since the EVOH has an air permeation amount of 1/100 or less of the butyl rubber, when used for the inner liner, the internal pressure retention of the tire can be greatly improved even with a thickness of 100 ⁇ m or less. It is possible to reduce the weight of the tire.
- the thickness of the inner liner can be reduced to 100 ⁇ m or less, so that it is difficult to break due to bending deformation at the time of tire rolling, and cracks are hardly generated. Therefore, it can be said that it is effective to use EVOH for the inner liner of the tire in order to improve the internal pressure retention of the pneumatic tire.
- Japanese Patent Application Laid-Open No. 6-40207 discloses a pneumatic tire provided with an inner liner made of EVOH.
- 2002-52904 discloses an ethylene-vinyl alcohol copolymer having an ethylene content of 20 to 70 mol% and a saponification degree of 85% or more, and a hydrophobic plastic.
- a technique of using a composite film composed of 1 to 40% by weight of an agent for an inner liner is disclosed.
- JP-A No. 2004-176048 discloses a modified ethylene-polymer obtained by reacting 1 to 50 parts by weight of an epoxy compound with 100 parts by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of 25 to 50 mol%.
- a technique of using a vinyl alcohol copolymer as an inner liner is disclosed, and the inner liner has a higher degree of bending resistance while maintaining gas barrier properties as compared with a conventional inner liner for EVOH. It is said that it has.
- the inner liner disclosed in the above Japanese Patent Application Laid-Open No. 2004-176048 is still improved because it is not easy to bend because it is not sufficiently flexible and flexible during low temperature running such as in winter. There is room.
- an object of the present invention is to provide a film that is excellent in gas barrier properties and flex resistance, can reduce the weight of a tire, and can be used for an inner liner for a tire that is difficult to break during low-temperature running such as in winter. is there.
- the present inventors have found that a resin containing a modified ethylene-vinyl alcohol copolymer (B) obtained by reacting an ethylene-vinyl alcohol copolymer (A) is used.
- the inner liner using the film characterized by including at least a layer made of the resin composition (D) in which the viscoelastic body (C) is dispersed has excellent gas barrier properties and bending resistance, and is used in winter.
- the present invention has been completed by finding that it is difficult to break during low-temperature running, and that the tire provided with the inner liner is excellent in internal pressure retention when new and after running.
- the viscoelastic body (C) is dispersed in a resin containing the modified ethylene-vinyl alcohol copolymer (B) obtained by reacting the ethylene-vinyl alcohol copolymer (A). Including at least a layer composed of the resin composition (D), The viscoelastic body (C) has a 100% modulus at ⁇ 30 ° C. of less than 6 MPa.
- the viscoelastic body (C) contains a soft polymer having a functional group having a high affinity for a hydroxyl group.
- the viscoelastic body (C) has a functional group containing maleic acid, maleic anhydride, isocyanate, isothiocyanate, alkoxysilane, epoxy, amine, and boron. It is modified with at least one compound selected from the group consisting of containing compounds, or comprises a soft polymer into which a boron-containing group has been introduced.
- the modified ethylene-vinyl alcohol copolymer (B) has an epoxy compound (E) of 1 to 50 with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer. It is obtained by reacting parts by mass.
- the saponification degree of the ethylene-vinyl alcohol copolymer is 90% or more.
- the molecular weight of the epoxy compound (E) is 500 or less.
- the epoxy compound (E) is glycidol or epoxypropane.
- the ethylene content of the ethylene-vinyl alcohol copolymer is 25 to 50 mol%.
- the resin composition (D) has a Young's modulus at ⁇ 30 ° C. of 1500 MPa or less.
- the content of the viscoelastic body (C) in the resin composition (D) is in the range of 10 to 70% by mass.
- the viscoelastic body (C) has an average particle size of 5 ⁇ m or less.
- the layer made of the resin composition (D) is crosslinked.
- the layer composed of the resin composition (D) has an oxygen transmission rate of 3.0 ⁇ 10 ⁇ 12 cm 3 ⁇ cm / cm at 20 ° C. and 65% RH. 2 ⁇ sec ⁇ cmHg or less.
- the thickness per layer composed of the resin composition (D) is 500 ⁇ m or less.
- auxiliary layers (F) made of an elastomer are further provided adjacent to the layer made of the resin composition (D).
- the elastomer is an olefin elastomer, a diene elastomer or a hydrogenated product thereof, or a urethane elastomer.
- a layer made of the resin composition (D) is sandwiched between the auxiliary layers (F).
- assistant layer (F) adjacent to the said layer between the auxiliary
- One or more adhesive layers (G) are provided in at least one place.
- the auxiliary layer (F) has an oxygen permeation amount of 3.0 ⁇ 10 ⁇ 9 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ at 20 ° C. and 65% RH. It is below cmHg.
- the auxiliary layer (F) contains butyl rubber and / or halogenated butyl rubber.
- the auxiliary layer (F) contains a diene elastomer.
- the auxiliary layer (F) contains a thermoplastic urethane-based elastomer.
- the total thickness of the auxiliary layer (F) is in the range of 10 to 2000 ⁇ m.
- the inner liner for tires of the present invention uses any of the above films.
- the tire of the present invention includes the tire inner liner.
- the auxiliary layer (F) has a portion of the auxiliary layer (F) corresponding to the width of at least 30 mm in total, and the auxiliary layer (F) corresponding to the lower portion of the belt ( It is 0.2 mm or more thicker than the total thickness of F).
- the gas barrier property and the bending resistance are excellent, the weight of the tire can be reduced while improving the internal pressure retention property of the tire when it is new and after traveling, and also when traveling at low temperatures such as in winter.
- a film that can be used for an inner liner for a tire that can exhibit barrier properties without being broken, an inner liner for a tire using the film, and a tire including the inner liner for the tire can be provided.
- the film of the present invention can be suitably used for an inner liner for tires, and is a resin containing a modified ethylene vinyl alcohol copolymer (B) obtained by reacting an ethylene-vinyl alcohol copolymer (A). It includes at least a layer composed of a resin composition (D) in which a viscoelastic body (C) is dispersed, and the 100% modulus at ⁇ 30 ° C. of the viscoelastic body (C) is less than 6 MPa. .
- (D) as an inner liner, it has excellent gas barrier properties and bending resistance, and can reduce the weight of the tire while improving the internal pressure retention of the tire when it is new and after running. It is possible to provide a film that can be used for an inner liner capable of exhibiting barrier properties without being broken even when traveling at a low temperature. If the M100 (100% modulus) at ⁇ 30 ° C.
- the film of this invention can be used also for things other than the inner liner for tires.
- a viscoelastic body (C) having a Young's modulus at ⁇ 30 ° C. smaller than that of the modified ethylene-vinyl alcohol copolymer is contained in the resin containing the modified ethylene-vinyl alcohol copolymer (B). It is preferable to include at least a layer made of the dispersed resin composition (D).
- the modified ethylene-vinyl alcohol copolymer (B) obtained by reacting the ethylene-vinyl alcohol copolymer (A) with an epoxy compound (E) has a lower elastic modulus than ordinary EVOH.
- an elastic modulus can further be reduced by disperse
- the ethylene-vinyl alcohol copolymer (A) is modified so that the hydroxyl group expressing crystallinity is changed to a chemical structure as shown in the following formula (I).
- the crystallinity of the combined (A) can be lowered and softened.
- R 1 , R 2 and R 3 include any one of C, H and O.
- the viscoelastic body (C) preferably contains either a diene rubber or a non-diene rubber.
- the resin composition (D) can shake elastically in a wide temperature range. The fatigue resistance of the inner liner can be improved.
- the main chain skeleton of the viscoelastic body (C) includes butadiene rubber (BR), styrene-butadiene copolymer rubber (SBR), hydrogenated SBR, natural rubber (NR), butyl rubber (IIR), chlorosulfone.
- BR butadiene rubber
- SBR styrene-butadiene copolymer rubber
- NR natural rubber
- IIR butyl rubber
- chlorosulfone chlorosulfone
- CSM Polyethylene rubber
- EPM ethylene propylene rubber
- EPDM ethylene-butene rubber
- ethylene-octene rubber chloroprene rubber
- CR chloroprene rubber
- ACM acrylic rubber
- silicone rubber and modified natural rubber with some functional groups
- NBR Nitrile rubber
- a viscoelastic material containing a halogen group for example, brominated-butyl rubber (Br-IIR), chlorinated butyl rubber (Cl-IIR), and brominated isobutylene-p represented by the following formula (II) -Methylstyrene) and the like.
- the viscoelastic body (C) has a high affinity for a hydroxyl group or reacts with the modified ethylene-vinyl alcohol copolymer (B) molecule and the viscoelastic body (C) molecule. It is preferable to have a functional group that binds.
- the viscoelastic body (C) has a functional group having a high affinity for a hydroxyl group, variation in the dispersion diameter of the viscoelastic body (C) in the modified ethylene-vinyl alcohol copolymer (B) is reduced. In addition, the average particle diameter can be reduced.
- the functional group having a high affinity for the hydroxyl group is selected from the group consisting of boron-containing groups, maleic acid, maleic anhydride, hydroxyl groups, carboxyl groups, isocyanate groups, isothiocyanate groups, epoxy groups, amines, and alkoxysilanes. And functional groups introduced by modification with at least one kind of compound.
- the functional group is not limited to those capable of directly reacting with the modified ethylene-vinyl alcohol copolymer (B) molecule or having a high affinity.
- the functional group is preliminarily reacted with another agent to thereby modify the modified ethylene-vinyl alcohol copolymer. Examples that can react with the polymer (B) molecule are also included (for example, Example 13).
- the functional group may be given in advance by a treatment at the time of polymerization or post-polymerization of the polymer of the viscoelastic body (C), or the modified ethylene-vinyl alcohol copolymer (B) and the resin composition (D ) May be introduced by reaction of the modified ethylene-vinyl alcohol copolymer (B) with another low molecular weight compound, or just before kneading.
- the boron-containing group includes at least one functional group selected from the group consisting of a boronic acid group and a boron-containing group that can be converted to a boronic acid group in the presence of water.
- the boronic acid group is represented by the following formula (III).
- the boron-containing group that can be converted to a boronic acid group in the presence of water refers to a boron-containing group that can be converted to a boronic acid group represented by the above formula (III) by hydrolysis in the presence of water. . More specifically, water alone, a mixture of water and an organic solvent (toluene, xylene, acetone, etc.), a mixture of a 5% aqueous boric acid solution and the organic solvent, and the like, at room temperature to 150 ° C. It means a functional group that can be converted to a boronic acid group when hydrolyzed for 10 minutes to 2 hours. Representative examples of such functional groups include boronic acid ester groups represented by the following formula (IV), boronic acid anhydride groups represented by the following formula (V), boronic acid groups represented by the following formula (VI), and the like. Is mentioned.
- X and Y are a hydrogen atom, an aliphatic hydrocarbon group (such as a linear or branched alkyl group having 1 to 20 carbon atoms, or an alkenyl group), an alicyclic hydrocarbon group (a cycloalkyl group, Alkenyl group, etc.) and aromatic hydrocarbon groups (phenyl group, biphenyl group, etc.), and X and Y may be the same or different. However, the case where both X and Y are hydrogen atoms is excluded. X and Y may be bonded.
- R 1 , R 2 and R 3 represent the same hydrogen atom, aliphatic hydrocarbon group, alicyclic hydrocarbon group and aromatic hydrocarbon group as those of X and Y, and R 1 , R 2 and R 3 are It may be the same or different.
- M represents an alkali metal.
- the above X, Y, R 1 , R 2 and R 3 may have other groups such as a hydroxyl group, a carboxyl group, a halogen atom and the like.
- boronic acid ester group represented by the above formula (IV) include boronic acid dimethyl ester group, boronic acid diethyl ester group, boronic acid dibutyl ester group, boronic acid dicyclohexyl ester group, boronic acid ethylene glycol ester group, boron Propylene glycol ester group, boronic acid 1,3-propanediol ester group, boronic acid 1,3-butanediol ester group, boronic acid neopentyl glycol ester group, boronic acid catechol ester group, boronic acid glycerin ester group, boronic acid Examples thereof include a trimethylolethane ester group, a boronic acid trimethylolpropane ester group, and a boronic acid diethanolamine ester group.
- examples of the boronic acid base represented by the above formula (VI) include an alkali metal base of boronic acid. Specific examples include sodium boronate base and potassium boronate base.
- a boronic acid cyclic ester group is preferable from the viewpoint of thermal stability.
- the boronic acid cyclic ester group include a boronic acid cyclic ester group containing a 5-membered ring or a 6-membered ring. Specific examples include boronic acid ethylene glycol ester groups, boronic acid propylene glycol ester groups, boronic acid 1,3-propanediol ester groups, boronic acid 1,3-butanediol ester groups, and boronic acid glycerin ester groups. .
- the polymer material constituting the viscoelastic body (C) does not include blocks or segments having a random molecular structure and a Tm (melting point) or Tg (glass transition point) of 50 ° C. or higher. Or even if it contains, it is preferable that the quantity is small. For example, if the viscoelastic body (C) contains a large amount of styrene blocks or segments, the styrene layer is in a glass state near room temperature and shakes very hard, so that the flexibility of the resin composition (D) is lost. Is called. On the other hand, even if styrene is included, for example, if the molecular structure is random, the flexibility of the resin composition (D) can be ensured.
- Tg was determined by differential scanning calorimetry (DSC).
- the polymer material constituting the viscoelastic body (C) may contain a small amount of a block component as long as the physical properties are not impaired for maintaining the pellet shape.
- the polymer material constituting the viscoelastic body (C) is a styrene-ethylene-butylene-styrene copolymer
- the polystyrene content of the copolymer is preferably 19% or less, and more preferably 16% or less.
- the method for producing the modified ethylene-vinyl alcohol copolymer (B) is not particularly limited, but the epoxy compound (E) 1 is used with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer (A).
- a production method of reacting ⁇ 50 parts by mass is preferable. More specifically, by adding an epoxy compound (E) to the ethylene-vinyl alcohol copolymer solution in the presence of an acid catalyst or an alkali catalyst, preferably in the presence of an acid catalyst, and reacting them, the modified ethylene-vinyl alcohol copolymer is reacted. A coalescence is produced.
- reaction solvent examples include aprotic polar solvents such as dimethyl sulfoxide, dimethylformamide, dimethylacetamide, and N-methylpyrrolidone.
- acid catalyst examples include p-toluenesulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid, sulfuric acid, and boron trifluoride.
- alkaline catalyst examples include sodium hydroxide, potassium hydroxide, lithium hydroxide, Examples include sodium methoxide.
- the catalyst amount is preferably in the range of 0.0001 to 10 parts by mass with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer.
- the epoxy compound (E) a monovalent epoxy compound is preferable.
- a divalent or higher-valent epoxy compound may undergo a crosslinking reaction with the ethylene-vinyl alcohol copolymer to generate gels, blisters and the like, thereby deteriorating the quality of the inner liner.
- the epoxy compound (E) has a molecular weight of 500 or less among monovalent epoxy compounds. It is preferred that glycidol and epoxypropane are particularly preferred.
- the epoxy compound (E) is preferably reacted in an amount of 1 to 50 parts by mass, more preferably 2 to 40 parts by mass, with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer (A). It is more preferable to react 5 to 35 parts by mass.
- the ethylene-vinyl alcohol copolymer (A) has a melt flow rate (MFR) of 0.1 to 30 g / 10 min under a load of 190 ° C. and 2160 g from the viewpoint of obtaining gas barrier properties, flex resistance and fatigue resistance. Is preferably 0.3 to 25 g / 10 min, and more preferably 0.5 to 20 g / 10 min.
- MFR melt flow rate
- the ethylene-vinyl alcohol copolymer (A) preferably has a saponification degree of 90% or more, more preferably 95% or more, and even more preferably 99% or more. If the saponification degree is less than 90%, the gas barrier property of the inner liner and the thermal stability during molding may be insufficient.
- the ethylene-vinyl alcohol copolymer (A) preferably has an ethylene content of 25 to 50 mol%, more preferably 30 to 48 mol%, and even more preferably 35 to 45 mol%. preferable. If the ethylene content is less than 25 mol%, the flex resistance, fatigue resistance and melt moldability of the inner liner may be deteriorated. On the other hand, if it exceeds 50 mol%, the gas barrier properties may not be sufficiently secured. .
- the resin composition (D) preferably has a Young's modulus at ⁇ 30 ° C. of 1500 MPa or less.
- the Young's modulus at ⁇ 30 ° C. is 1500 MPa or less, the durability of the inner liner when used in a cold district can be improved.
- the content of the viscoelastic body (C) in the resin composition (D) is preferably in the range of 10 to 80% by mass, more preferably in the range of 20 to 70% by mass, The range of 70% by mass is particularly preferable.
- the content of the viscoelastic body (C) is less than 10% by mass, the effect of improving the flex resistance of the inner liner is small.
- the content exceeds 80% by mass, the gas barrier property of the inner liner may be lowered.
- the viscoelastic body (C) preferably has an average particle size of 5 ⁇ m or less.
- the average particle diameter of the viscoelastic body (C) in the resin composition (D) is obtained, for example, by freezing a sample, cutting the sample with a microtome, and observing with a transmission electron microscope (TEM). It is done.
- the resin composition (D) can be prepared by kneading the ethylene-vinyl alcohol copolymer (A) and the viscoelastic body (C).
- the resin composition (D) is formed into a film, sheet or the like at a melting temperature of preferably 120 to 270 ° C. by melt molding, preferably extrusion molding such as T-die method or inflation method, and used as an inner liner. Is done.
- the layer made of the resin composition (D) is preferably cross-linked in order to increase heat resistance during molding, for example, during vulcanization of a tire or the like.
- the inner liner is remarkably deformed and becomes non-uniform in the tire vulcanization process, and the gas barrier property, flex resistance, and fatigue resistance of the inner liner are deteriorated.
- a crosslinking method a method of irradiating energy rays is preferable.
- the energy rays include ionizing radiation such as ultraviolet rays, electron beams, X-rays, ⁇ rays, ⁇ rays, and among these, electron beams are used. Particularly preferred.
- the resin and viscoelastic body are preferably electron beam cross-linked types, and the electron beam collapsible type is inferior in durability.
- the electron beam irradiation is preferably performed after the resin composition (D) is processed into a molded body such as a film or a sheet.
- the dose of the electron beam is preferably in the range of 2.5 to 60 Mrad, and more preferably in the range of 5 to 50 Mrad.
- the electron beam dose is less than 2.5 Mrad, crosslinking is difficult to proceed.
- the dose exceeds 60 Mrad the molded body tends to deteriorate.
- a molded object may become hard too much and it may become easy to crack.
- the layer made of the resin composition (D) preferably has an oxygen permeation amount of 3.0 ⁇ 10 ⁇ 12 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ cmHg or less at 20 ° C. and 65% RH. 1.0 ⁇ 10 ⁇ 12 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ cmHg or less is more preferable, and 5.0 ⁇ 10 ⁇ 13 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ cmHg or less is more preferable. preferable. If the oxygen permeation amount at 20 ° C.
- the thickness per layer of the resin composition (D) is preferably 500 ⁇ m or less, more preferably 0.1 ⁇ m or more, and in the range of 0.5 to 100 ⁇ m. More preferably, it is in the range of 1 to 70 ⁇ m.
- the thickness of the layer made of the resin composition (D) exceeds 500 ⁇ m, when the film is used as an inner liner, the effect of reducing the weight is reduced with respect to a conventional butyl rubber-based inner liner, and the bending resistance and The fatigue resistance is lowered, and the film is easily broken or cracked by bending deformation during use of the film. Further, since the crack is easily extended, the gas barrier property of the film may be lower than before use. On the other hand, if it is less than 0.1 ⁇ m, the gas barrier property is insufficient, and the tire internal pressure retention property may not be sufficiently ensured.
- the film of the present invention preferably further comprises one or more auxiliary layers (F) made of an elastomer adjacent to the layer made of the resin composition (D).
- auxiliary layers (F) made of an elastomer adjacent to the layer made of the resin composition (D).
- the auxiliary layer (F) is peeled from the layer made of the resin composition (D). Since it becomes difficult to do, it is preferable. If an elastomer having such a high affinity is used, it is difficult for the crack to extend even if the layer made of the resin composition (D) breaks or cracks. And the internal pressure retention of the tire can be sufficiently maintained.
- the auxiliary layer (F) plays the role of a cushion. Since the strain input to the object (D) is relaxed, the crack resistance of the inner liner of the present invention is improved.
- the elastomer used for the auxiliary layer (F) is preferably a polyolefin, a butyl elastomer, a diene elastomer or a urethane elastomer.
- the auxiliary layer of the film of the present invention is an olefin-based elastomer, butyl-based elastomer, diene-based elastomer or hydrogenated product thereof, or urethane-based elastomer
- the auxiliary layer is more flexible than a layer (barrier layer) made of a resin composition. Or has a creep resistance and plays the role of a cushion, and the strain input to the resin composition (D) can be relaxed, and the crack resistance of the film is improved.
- the resin composition (D) is sandwiched between the auxiliary layers (F).
- the lamination can be performed by coextrusion such as T-die method and inflation method.
- the auxiliary layer (F) can be laminated, and it is particularly preferable that the auxiliary layer made of an elastomer having various properties is multilayered.
- these elastomers may be used individually by 1 type, and may be used in combination of 2 or more type.
- the film of the present invention is at least between the layer comprising the resin composition (D) and the auxiliary layer (F) and between the auxiliary layer (F) having a different composition or the same composition as the auxiliary layer (F).
- One or more adhesive layers (G) can also be provided at one place. That is, an adhesive layer (G) may be provided between the layer made of the resin composition (D) and the auxiliary layer (F) adjacent to the layer, or between each auxiliary layer of the auxiliary layers that are multilayered. it can.
- chlorinated rubber / isocyanate series modified olefin series (for example, butyl rubber, polyethylene, polypropylene, ethylene / propylene, ethylene / butene, ethylene / octene were modified) Or modified diene-based adhesives.
- the film of the present invention includes an auxiliary layer (F) and, if necessary, an adhesive layer (G) in addition to the layer composed of the resin composition (D), a laminate (for example, (D) / (G), (F) / (D) / (F) / (G), (D) / (G) / (F), (F) / (D) / (F) / (D) / (F )).
- a laminate for example, (D) / (G), (F) / (D) / (F) / (G), (D) / (G) / (F), (F) / (D) / (F) / (D) / (F )).
- a method for producing a laminate for example, a method of laminating a layer composed of the resin composition (D) and another layer by co-extrusion such as a T-die method or an inflation method, a resin composition (D) And a method of bonding the auxiliary layer (F) with the adhesive layer (G) as necessary. Furthermore, when using a film as an inner liner, the layer which consists of a resin composition (D), and an auxiliary
- the auxiliary layer (F) preferably has an oxygen permeation amount of 3.0 ⁇ 10 ⁇ 9 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ cmHg or less at 20 ° C. and 65% RH, and 1.0 ⁇ 10 ⁇ More preferably, it is 9 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ cmHg or less.
- the oxygen permeability coefficient is used as a representative value of gas permeability.
- the above-described laminate preferably has an oxygen permeation amount of 3.0 ⁇ 10 ⁇ 9 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ cmHg or less at 20 ° C. and 65% RH from the viewpoint of gas barrier properties. More preferably, it is 0.0 ⁇ 10 ⁇ 9 cm 3 ⁇ cm / cm 2 ⁇ sec ⁇ cmHg or less.
- elastomer used for the auxiliary layer (F) include butyl rubber, halogenated butyl rubber, diene elastomer, and thermoplastic urethane elastomer.
- butyl rubber and halogenated butyl rubber are preferable, and halogenated butyl rubber is more preferable.
- butyl rubber and diene-based elastomers are preferable in order to suppress extension when cracks occur in the layer made of the resin composition (D).
- a flexible elastomer or an elastomer excellent in creep resistance than the layer made of the resin composition (D) is preferable, Particularly preferred are thermoplastic urethane elastomers, polyolefin elastomers and diene elastomers.
- diene elastomer examples include natural rubber (NR), isoprene rubber (IR), butadiene rubber (BR), styrene-butadiene copolymer rubber (SBR), acrylonitrile-butadiene rubber (NBR), and chloroprene.
- NR natural rubber
- IR isoprene rubber
- BR butadiene rubber
- SBR styrene-butadiene copolymer rubber
- NBR acrylonitrile-butadiene rubber
- chloroprene examples include rubber (CR), and among these, natural rubber, SBR, and butadiene rubber are preferable.
- These diene elastomers may be used alone or in combination of two or more.
- the auxiliary layer (F) preferably contains a thermoplastic urethane-based elastomer.
- the thermoplastic urethane-based elastomer is obtained by a reaction of a polyol, an isocyanate compound, and a short chain diol.
- a polyol and a short chain diol form a linear polyurethane by an addition reaction with an isocyanate compound.
- the polyol becomes a flexible part in the thermoplastic urethane elastomer, and the isocyanate compound and the short chain diol become a hard part.
- the properties of thermoplastic urethane elastomers can be changed over a wide range by changing the type, blending amount, polymerization conditions, and the like of raw materials.
- assistant layer (F) of the film of this invention may comprise the auxiliary
- the film of the present invention is a laminate of a layer made of the resin composition (D) and an auxiliary layer (F1) containing, for example, a thermoplastic urethane-based elastomer adjacent to the layer made of the resin composition (D).
- a laminate for example, (F1) / (D) / (F1) / (G) in which the body is laminated with an auxiliary layer (F2) made of a rubber composition such as a butyl rubber via the adhesive layer (G). ) / (F2)).
- the total thickness of the auxiliary layer (F) is preferably in the range of 10 to 2000 ⁇ m, more preferably in the range of 15 to 1500 ⁇ m, and still more preferably in the range of 20 to 800 ⁇ m.
- the total thickness of the auxiliary layer (F) is less than 10 ⁇ m, the reinforcing effect is not sufficiently exerted, and it becomes difficult to suppress adverse effects when the layer made of the resin composition (D) is broken or cracked.
- the film is used as an inner liner for tires, the internal pressure retention of the tires may not be sufficiently maintained.
- the total thickness of the auxiliary layers (F) exceeds 2000 ⁇ m, the effect of reducing the weight of the tire becomes small.
- the tensile stress at 300% elongation of the auxiliary layer (F) is preferably 200 MPa or less, more preferably 100 MPa or less, and even more preferably 70 MPa or less.
- the tensile stress exceeds 200 MPa, the bending resistance and fatigue resistance when the auxiliary layer (F) is used for the inner liner may be lowered.
- FIG. 1 is a partial cross-sectional view of an example of the tire of the present invention.
- the tire shown in FIG. 1 has a pair of bead portions 1, a pair of sidewall portions 2, and a tread portion 3 connected to both sidewall portions 2, and extends in a toroid shape between the pair of bead portions 1.
- An inner liner 6 is disposed on the inner surface of the tire.
- the carcass 4 has a main body portion extending in a toroidal shape between a pair of bead cores 7 embedded in the bead portion 1, and around each bead core 7 from the inner side to the outer side in the tire width direction.
- the number of plies and the structure of the carcass 4 are not limited to this.
- the belt 5 includes two belt layers.
- the belt layer is usually composed of a rubberized layer of a cord extending obliquely with respect to the tire equatorial plane.
- the cords constituting the belt layer intersect with each other with the equator plane interposed therebetween.
- the belt 5 is configured by being laminated.
- the tire of the illustrated example includes a belt reinforcing layer 8 disposed so as to cover the entire belt 5 outside the belt 5 in the tire radial direction, but the tire of the present invention includes the belt reinforcing layer 8.
- the belt reinforcing layer having another structure may be provided.
- the belt reinforcing layer 8 is usually composed of a rubberized layer of cords arranged substantially parallel to the tire circumferential direction.
- the inner liner 6 has only one layer made of the resin composition (D), but the tire of the present invention improves the bending resistance of the layer made of the resin composition (D). Therefore, one or more auxiliary layers (F) can be provided as shown in FIGS.
- FIGS. 2 and 3 are enlarged partial cross-sectional views of another example of the tire of the present invention corresponding to the portion II surrounded by the frame in FIG. 2 replaces the inner liner 6 shown in FIG. 1 with a layer 9 made of the resin composition (D) and two layers disposed adjacent to the layer 9 made of the resin composition (D).
- an inner liner 13 comprising an auxiliary layer (F) 10, 11 and an adhesive layer (G) 12 disposed outside the auxiliary layer (F) 11.
- the tire shown in FIG. 3 includes an inner liner 15 further having an auxiliary layer (F) 14 outside the adhesive layer (G) 12 shown in FIG.
- the tire shown in FIGS. 2 and 3 further includes an adhesive layer (G) 12 outside the auxiliary layer (F) 11, but the tire of the present invention does not have the adhesive layer (G) 12.
- one or more adhesive layers (G) may be provided between other layers.
- the auxiliary layer (F) has a portion corresponding to a width of at least 30 mm (for example, indicated by c in FIG. 4) in the region from the belt end to the bead portion as shown in FIG.
- the portion of the auxiliary layer (F) corresponding to the region where the belt 5 is present (the portion indicated by a in FIG. ) Is preferably 0.2 mm or more thicker than the total thickness at any position. This is an area from the bead part to the belt end part where the distortion is most severe and cracks are likely to occur. In order to improve the durability of such an area, the auxiliary layer (F) in the specific area is thickened. This is because it is effective.
- the portion corresponding to the width of at least 30 mm may be any region indicated by b in FIG.
- the tire of the present invention can be produced by a conventional method by applying the above-described resin composition (D) to the inner liner and the auxiliary layer (F) and the adhesive layer (G) depending on the situation.
- an inert gas such as nitrogen, or the like can be used as the gas filled in the tire.
- the tire of the present invention is not particularly limited with respect to other structures as long as it has an inner liner using the film of the present invention having the above-described configuration, and can take various forms.
- the tire of the present invention can be suitably applied to passenger car tires, large tires, off-the-road tires, automobile tires, motorcycle tires, aircraft tires, agricultural tires, and the like.
- the tire of the present invention may be a pneumatic tire or a solid tire.
- the inside of the tire is filled with air, nitrogen, helium, etc., but is often filled with air from the viewpoint of cost.
- the modified ethylene-vinyl alcohol copolymer obtained had a Young's modulus at 23 ° C. of 1300 MPa as measured by the following method.
- the film was conditioned at 20 ° C. and 65% RH for 5 days. Using the two humidity-adjusted films obtained, using MOCON OX-TRAN 2/20 type manufactured by Modern Control, in accordance with JIS K7126 (isobaric method) under the conditions of 20 ° C. and 65% RH, The amount of oxygen permeation was measured and the average value was determined.
- EPOXYPRENE 25 (Polymer 1), Asahi Kasei's Tuftec M1943 (Polymer 2) as maleic anhydride-modified styrene ethylene butylene styrene (SEBS), and Exxpro 89-4 (Polymer) as brominated isobutylene-p-methylstyrene 3), modified polyethylene (modified EP), manufactured by Mitsui Chemicals, Inc., Tuffmer MP0620 (Polymer 4), modified copolymerized polyolefin (modified EB), manufactured by Mitsui Chemicals, Inc., Tuffmer MH7020 (Polymer).
- the polymer 5) was made by JSR Co., Ltd.
- Example 14 was made by JSR, Dynalon 8630P (Polymer 7).
- a modified olefin used in Example 15 a blend of Dynalon 8630P (Polymer 7) and Dynalon 4630P (Polymer 8) manufactured by JSR is used.
- unmodified SBR Toughden 2000R (Polymer 9) manufactured by Asahi Kasei is used as a glycidylamine in Dainippon.
- EPICLON 430 compound 1, tetraglycidylamine, DDM manufactured by Ink Chemical Co., Ltd.
- thermoplastic polyurethane (TPU) Kuraray Co., Ltd. Kuramylon 3190
- TPU thermoplastic polyurethane
- Example 1 thermoplastic polyurethane layer / resin composition (D) layer / thermoplastic polyurethane layer
- Tables 1-3 The thickness of each layer used for each film is shown in Tables 1-3.
- a single layer film of the resin composition (D) was used except for Examples 1, 2, 7 to 11, 15 and Comparative Example 1.
- a pneumatic tire for a passenger car having a size of 195 / 65R15 having the structure shown in FIG. 1 was produced according to a conventional method.
- the compositions of the films used are shown in Tables 1 to 3.
- the auxiliary layer (F) is composed of 30 parts by mass of natural rubber and 70 parts by mass of brominated butyl rubber [manufactured by JSR Corporation, Bromobutyl 2244], GPF carbon black [manufactured by Asahi Carbon Co., Ltd., # 55.
- the rubber composition used for the auxiliary layer (F) has a tensile stress of 6.5 MPa at 300% elongation and an oxygen transmission rate of 6.0 ⁇ 10 ⁇ 10 cm 3 ⁇ cm 2 / sec ⁇ cmHg. Met.
- the tensile stress at 300% elongation was measured according to JIS K6251-1993, and the oxygen transmission rate was measured by the above method.
- the pneumatic tire of Comparative Example 1 was produced in the same manner as the above method except that no film was used and the thickness of the auxiliary layer (F) was 1500 ⁇ m.
- the tires of the examples have significantly improved internal pressure retention before and after running, compared to the tires of the comparative examples, and cracks occurred in the tires after running. You can see that they are not.
- the rubber composition layer of the tire of the example is thinner than the comparative example and the weight of the inner liner is light, the weight of the tire can be reduced.
- the viscoelastic body (C) contains an isocyanate group having a high affinity for the hydroxyl group, the dispersibility of the viscoelastic body in the resin composition is good, maintaining the barrier property and cracking resistance of the tire. It is possible to achieve both compatibility. Further, in Comparative Example 2 where the 100% modulus at ⁇ 30 ° C.
- the inner liner of the present invention is a resin in which a viscoelastic body (C) is dispersed in a resin containing a modified ethylene vinyl alcohol copolymer (B) obtained by reacting an ethylene-vinyl alcohol copolymer (A). It is preferable that the viscoelastic body (C) has a 100% modulus at ⁇ 30 ° C. of less than 6 MPa including at least a layer made of the composition (D).
- EPOXYPRENE 25 Polymer 1
- IR2200 Polymer 10, manufactured by Nippon Zeon Co., Ltd.
- Limited an epoxy modified NR-50 (Mu-ang Mai Guth Public Public Limited, EPOXYP)
- ENE 50, polymer 11) and IR2200 polymer 10, manufactured by Nippon Zeon Co., Ltd.
- Example 20 the isocyanate-modified BR synthesized in Synthesis Example 4 and the unmodified BR (polymer 12, BR01 manufactured by JSR) In Example 21, Mitsui Chemicals, Inc., Tafmer MH7020 (Polymer 5) was blended, and in Example 22, unmodified copolymerized polyolefin (unmodified EB, JSR Co., Ltd., 1050S, In Example 23, a blend of polymer 6) and a modified copolymerized polyolefin (modified EB, manufactured by Mitsui Chemicals, Inc., Tuffmer MH7020, polymer 5) was used as a brominated isobutylene-p-methylstyrene (manufactured by ExxonMobil Chemical).
- Exxpro89-4, polymer 3) and glycidylamine (Dainippon Ink Chemicals, A blend of PICLON430 (tetraglycidylamine, DDM) and compound 1) was used in Comparative Example 4 using epoxy-modified SBS (manufactured by Daicel, Polymer 13), and in Comparative Example 5 using Asahi Kasei Tuftec M1943 (Polymer 2). . Further, the Young's modulus at ⁇ 30 ° C. of the resin composition (D) was measured by the method for measuring Young's modulus. Further, the 100% modulus of the viscoelastic body was measured using a JIS No. 3 dumbbell-type test piece in accordance with JIS K6251-1993. The results are shown in Tables 4-6.
- Example 24 thermoplastic polyurethane layer / resin composition (D) layer / thermoplastic polyurethane layer
- Example 24 thermoplastic polyurethane layer / resin composition (D) layer / thermoplastic polyurethane layer
- the films of Examples 16 to 26 and Comparative Example 4 were used under the conditions of an acceleration voltage of 200 kV and an irradiation energy of 30 Mrad using an electron beam irradiation apparatus “Production Curetron EBC200-100” manufactured by Nissin High Voltage Co., Ltd.
- Crosslinking treatment was performed by electron beam irradiation.
- Metallock R30M manufactured by Toyo Chemical Laboratory was applied as an adhesive layer (G) to one side of the obtained crosslinked film, and the inner surface of the auxiliary layer (F) having a thickness of 500 ⁇ m was applied.
- An inner liner was prepared by pasting. In Examples 17 to 19, 21 to 23, 25 to 26 and Comparative Example 4, the film was used as an inner liner as it was.
- a pneumatic tire for a passenger car having a size of 195 / 65R15 having the structure shown in FIG. 1 was produced according to a conventional method.
- the composition of the film used is shown in Tables 4-6.
- auxiliary layer (F) the same rubber composition as that used in Examples 1 and 7 and Comparative Example 2 was used.
Landscapes
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
前記粘弾性体(C)の-30℃における100%モジュラスが6MPa未満であることを特徴とする。
前記のいずれかのフィルムを用いたタイヤ用インナーライナーを備え、
前記補助層(F)は、ベルト端からビード部までの領域において、少なくとも30mmの幅に相当する部分の補助層(F)の厚さの合計が、ベルト下部に対応する部分の該補助層(F)の厚さの合計より0.2mm以上厚い。
以下、実施例により本発明を更に具体的に説明するが、本発明はこれらの実施例によって何ら限定されるものではなく、その要旨を変更しない範囲において適宜変更可能である。
加圧反応槽に、エチレン含量44モル%、ケン化度99.9%のエチレン-ビニルアルコール共重合体(190℃、2160g荷重下でのMFR:5.5g/10分)2質量部及びN-メチル-2-ピロリドン8質量部を仕込み、120℃で2時間加熱撹拌して、エチレン-ビニルアルコール共重合体を完全に溶解させた。これにエポキシ化合物(E)としてエポキシプロパン0.4質量部を添加後、160℃で4時間加熱した。加熱終了後、蒸留水100質量部に析出させ、多量の蒸留水で充分にN-メチル-2-ピロリドン及び未反応のエポキシプロパンを洗浄し、変性エチレン-ビニルアルコール共重合体を得た。更に、得られた変性エチレン-ビニルアルコール共重合体を粉砕機で粒子径2mm程度に細かくした後、再度多量の蒸留水で十分に洗浄した。洗浄後の粒子を8時間室温で真空乾燥した後、二軸押出機を用いて200℃で溶融し、ペレット化した。なお、得られた変性エチレン-ビニルアルコール共重合体の23℃におけるヤング率は、下記の方法で測定した結果、1300MPaであった。
東芝機械社製TEM-35BS押出機(37mmφ、L/D=52.5)を使用し、図5に示すようにスクリュー構成、ベントおよび圧入口を設置した。バレルC1を水冷し、バレルC2~C3を200℃、バレルC4~C15を240℃に設定し、スクリュー回転数400rpmで運転した。C1の樹脂フィード口からEVOHを15kg/hrの割合でフィードし、溶融した後、ベント1から水および酸素を除去し、C9の液圧入口からグリシド-ルを2.5kg/hrの割合でフィ-ドすることにより(フィード時の圧力:6MPa)、グリシドール変性EVOHを得た。
乾燥し、窒素置換された800ミリリットルの耐圧ガラス容器に、シクロヘキサン300g、1,3-ブタジエン41.25g、スチレン8.75g、ジテトラヒドロフリルプロパン0.38ミリモルを注入し、これにn-ブチルリチウム(BuLi)0.43ミリモルを加えた後、50℃で1.5時間重合を行った。ここに末端変性剤として3-トリエトキシシリルプロピル無水コハク酸0.43ミリモルを加えた後、さらに30分間変性反応を行った。この後、重合系にさらに2,6-ジ-t-ブチル-p-クレゾール(BHT)のイソプロパノール5質量%溶液0.5ミリリットルを加えて反応の停止を行い、さらに常法に従い乾燥することにより無水コハク酸変性SBRを得た。
窒素置換された反応器に、シクロヘキサン2,000g、ブタジエン500g、テトラヒドロフラン10gを仕込んだ後、n-ブチルリチウムを添加し、断熱下30~90℃で重合反応を行った。重合転化率が100%に達した後、ジフェニルメタンジイソシアネートをリチウム原子に対し2当量加えて反応させた。次いで、2,6-ジターシャリーブチル-P-クレゾールを添加後、シクロヘキサンを加熱除去してイソシアネート変性BRを得た。
窒素置換された内容積5Lの反応器に、シクロヘキサン2000g、1,3-ブタジエン450g、スチレン50g、及びテトラヒドロフラン25gを仕込んだ後、n-ブチルリチウム0.32gを加えて断熱下30~90℃で重合反応を行なった。
重合転化率が100%に達した後、ジフェニルメタンジイソシアネートをn-ブチルリチウムに対して2当量加え反応させた。更に、老化防止剤としてジ-tert-ブチル-p-クレゾールをゴム100gに対して0.7g添加して、常法にて脱溶・乾燥を行なった。
エチレン含有量を32モル%にした以外は合成例1と同様にして変性エチレン-ビニルアルコール共重合体を得た。更に、得られた変性エチレン-ビニルアルコール共重合体を粉砕機で粒子径2mm程度に細かくした後、再度多量の蒸留水で十分に洗浄した。洗浄後の粒子を8時間室温で真空乾燥した後、二軸押出機を用いて200℃で溶融し、ペレット化した。
東洋精機社製二軸押出機によって、下記押出条件で製膜し、厚さ20μmの単層フィルムを作製した。次に該フィルムを用いて、幅15mmの短冊状の試験片を作製し、-36℃、50%RHの条件下で恒温室内に1週間放置した後、株式会社島津製作所製オートグラフ[AG-A500型]を用いて、チャック間隔50mm、引張速度50mm/分の条件で、-30℃、50%RHにおけるS-Sカーブ(応力-歪み曲線)を測定し、S-Sカーブの初期傾きからヤング率を求めた。
シリンダー、ダイ温度設定:C1/C2/C3/ダイ=200/200/200/200(℃)
上記フィルムを、20℃、65%RHで5日間調湿した。得られた調湿済みのフィルムを2枚使用して、モダンコントロール社製MOCON OX-TRAN2/20型を用い、20℃、65%RHの条件下でJIS K7126(等圧法)に準拠して、酸素透過量を測定し、その平均値を求めた。
後述する方法でタイヤを作製し、-30℃の雰囲気の中、空気圧140kPaで、80km/hの速度に相当する回転ドラム上に加重6kNで押し付けて10,000km走行させた。そして、走行させたタイヤ(試験タイヤ)と未走行タイヤとを6JJ×15のリムに装着した後内圧を240kPaとし、3ヶ月間放置した。3ヶ月後の内圧を測定し、下記式:
内圧保持性=((240-b)/(240-a))×100
[式中、aは試験タイヤの3ヶ月後の内圧、bは下記比較例1記載の未走行タイヤ(通常のゴムインナーライナーを用いた空気入りタイヤ)の3ヶ月後の内圧である]を用いて内圧保持性を評価した。また、比較例1の値を100として他の値を指数化した。
サンプルを凍結し、該サンプルをミクロトームにより切片にして、透過電子顕微鏡(TEM)で形態観察し、粘弾性体の平均粒子径が10μm以上のもの又は分散していない状態を「悪」と評価し、10μm以下で分散している状態を「良」と評価した。
インナーライナーに生じた亀裂の有無に関しては、ドラム走行後のタイヤのインナーライナー外観を目視観察して、亀裂の有無を評価した。これらの結果を表1~3に示す。
合成例1及び2で得られた変性エチレン-ビニルアルコール共重合体または合成例3で得られた無水コハク酸変性SBRと表中に示す粘弾性体(C)とを二軸押出機で混練し、表1~3に示す配合処方の樹脂組成物(D)を得た。ここで、樹脂として、比較例3ではナイロン(宇部興産製ウベナイロン5033B)を用い、粘弾性体(C)には、エポキシ変性天然ゴム(E-NR)としてMu-ang Mai Guthrie Pubulic Company Limited社製、EPOXYPRENE 25(ポリマー1)を、無水マレイン酸変性スチレンエチレンブチレンスチレン(SEBS)として旭化成製タフテックM1943(ポリマー2)を、臭素化イソブチレン-p-メチルスチレンとしてエクソンモービルケミカル製のExxpro89-4(ポリマー3)を、変性ポリエチレン(変性EP)として三井化学(株)製、タフマーMP0620(ポリマー4)を、変性共重合ポリオレフィン(変性EB)として三井化学(株)製、タフマーMH7020(ポリマー5)を、未変性共重合ポリオレフィン(未変性EB)としてJSR(株)製、1050S(ポリマー6)を、実施例14で使用した変性オレフィンとしてJSR製、ダイナロン8630P(ポリマー7)を、実施例15で使用した変性オレフィンとしてJSR製、ダイナロン8630P(ポリマー7)とダイナロン4630P(ポリマー8)とをブレンドしたものを、未変性SBRとして旭化成製タフデン2000R(ポリマー9)を、グリシジルアミンとして大日本インキ化学製のEPICLON430(化合物1、テトラグリシジルアミン、DDM)を使用し、無水コハク酸変性SBR、イソシアネート変性BR及びイソシアネート変性SBRとして、それぞれ上記合成例3~5により合成したものを使用した。また、上記ヤング率の測定方法を用いて樹脂組成物(D)の-30℃におけるヤング率を測定した。更に、粘弾性体の100%モジュラスを、JIS3号ダンベル型試験片を用いてJIS K6251-1993に準拠して測定した。結果を表1~3に示す。
各樹脂の押出温度:C1/C2/C3/ダイ=170/170/200/200℃
各樹脂の押出機仕様:
熱可塑性ポリウレタン:25mmφ押出機P25-18AC[大阪精機工作株式会社製]
樹脂組成物(D):20mmφ押出機ラボ機ME型CO-EXT[株式会社東洋精機製]
Tダイ仕様:500mm幅2種3層用[株式会社プラスチック工学研究所製]
冷却ロールの温度:50℃
引き取り速度:4m/分
合成例1、2及び6で得られた変性エチレン-ビニルアルコール共重合体と表中に示す粘弾性体(C)とを二軸押出機で混練し、表4~6に示す配合処方の樹脂組成物(D)を得た。ここで、粘弾性体(C)には、実施例16、24、25、26では、JSR製、ダイナロン8630P(ポリマー7)とダイナロン4630P(ポリマー8)とをブレンドしたものを、実施例17では、上記合成例5で合成したイソシアネート変性SBRと未変性SBR(ポリマー9、JSR製、#1500)とをブレンドしたものを、実施例18では、エポキシ変性E-NR(Mu-ang Mai Guthrie Pubulic Company Limited社製、EPOXYPRENE 25、ポリマー1)とIR2200(ポリマー10、日本ゼオン製)とをブレンドしたものを、実施例19では、エポキシ変性NR-50(Mu-ang Mai Guthrie Pubulic Company Limited社製、EPOXYPRENE 50、ポリマー11)とIR2200(ポリマー10、日本ゼオン製)とをブレンドしたものを、実施例20では、上記合成例4で合成したイソシアネート変性BRと未変性BR(ポリマー12、JSR製BR01)とをブレンドしたものを、実施例21では、三井化学(株)製、タフマーMH7020(ポリマー5)を、実施例22では、未変性共重合ポリオレフィン(未変性EB、JSR(株)製、1050S、ポリマー6)と変性共重合ポリオレフィン(変性EB、三井化学(株)製、タフマーMH7020、ポリマー5)とをブレンドしたものを、実施例23では、臭素化イソブチレン-p-メチルスチレン(エクソンモービルケミカル製、Exxpro89-4、ポリマー3)とグリシジルアミン(大日本インキ化学製、EPICLON430(テトラグリシジルアミン、DDM)、化合物1)とをブレンドしたものを、比較例4ではエポキシ変性SBS(ダイセル製、ポリマー13)を、比較例5では旭化成製タフテックM1943(ポリマー2)を使用した。また、上記ヤング率の測定方法により樹脂組成物(D)の-30℃におけるヤング率を測定した。更に、粘弾性体の100%モジュラスを、JIS3号ダンベル型試験片を用いてJIS K6251-1993に準拠して測定した。結果を表4~6に示す。
Claims (26)
- エチレン-ビニルアルコール共重合体(A)を反応させて得られる変性エチレンビニルアルコール共重合体(B)を含む樹脂中に粘弾性体(C)を分散させた樹脂組成物(D)からなる層を少なくとも含み、
前記粘弾性体(C)の-30℃における100%モジュラスが6MPa未満であることを特徴とするフィルム。 - 前記粘弾性体(C)が、水酸基と親和性の高い官能基を有する軟質高分子を含んでいることを特徴とする請求項1に記載のフィルム。
- 前記粘弾性体(C)が、マレイン酸、無水マレイン酸、イソシアネート、イソチアシアネート、アルコキシシラン、エポキシ、アミン、及びホウ素を含有する官能基を含む化合物からなる群より選択される少なくとも一種の化合物で変性されているか、或いは、ホウ素含有基が導入されている軟質高分子を含んでなることを特徴とする請求項1に記載のフィルム。
- 前記樹脂が、エチレン-ビニルアルコール共重合体(A)100質量部に対し、エポキシ化合物(E)1~50質量部を反応させて得られる変性エチレン-ビニルアルコール共重合体(B)を含むことを特徴とする請求項1に記載のフィルム。
- 前記エチレン-ビニルアルコール共重合体(A)のケン化度が90%以上であることを特徴とする請求項1に記載のフィルム。
- 前記エポキシ化合物(E)の分子量が500以下であることを特徴とする請求項4に記載のフィルム。
- 前記エポキシ化合物(E)がグリシドール又はエポキシプロパンであることを特徴とする請求項4に記載のフィルム。
- 前記エチレン-ビニルアルコール共重合体(A)のエチレン含有量が25~50モル%であることを特徴とする請求項1に記載のフィルム。
- 前記樹脂組成物(D)の-30℃におけるヤング率が1500MPa以下であることを特徴とする請求項1に記載のフィルム。
- 前記樹脂組成物(D)における前記粘弾性体(C)の含有率が10~70質量%の範囲であることを特徴とする請求項1に記載のフィルム。
- 前記粘弾性体(C)の平均粒径が5μm以下であることを特徴とする請求項1に記載のフィルム。
- 前記樹脂組成物(D)からなる層が架橋されていることを特徴とする請求項1に記載のフィルム。
- 前記樹脂組成物(D)からなる層は、20℃、65%RHにおける酸素透過量が3.0×10-12cm3・cm/cm2・sec・cmHg以下であることを特徴とする請求項1に記載のフィルム。
- 前記樹脂組成物(D)からなる層一層あたりの厚さが500μm以下であることを特徴とする請求項1に記載のフィルム。
- 前記樹脂組成物(D)からなる層に隣接して、更にエラストマーからなる補助層(F)を一層以上備えることを特徴とする請求項1に記載のフィルム。
- 前記エラストマーが、オレフィン系エラストマー、ジエン系エラストマー又はその水素添加物、或いはウレタン系エラストマーであることを特徴とする請求項15に記載のフィルム。
- 前記樹脂組成物(D)からなる層が前記補助層(F)に挟まれていることを特徴とする請求項15記載のフィルム。
- 前記樹脂組成物(D)からなる層と、当該層に隣接した補助層(F)との間及び互いに隣接した補助層(F)の間の少なくとも一箇所に、一層以上の接着剤層(G)を備えることを特徴とする請求項15に記載のフィルム。
- 前記補助層(F)は、20℃、65%RHにおける酸素透過量が3.0×10-9cm3・cm/cm2・sec・cmHg以下であることを特徴とする請求項15に記載のフィルム。
- 前記補助層(F)がブチルゴム及び/又はハロゲン化ブチルゴムを含むことを特徴とする請求項15に記載のフィルム。
- 前記補助層(F)がジエン系エラストマーを含むことを特徴とする請求項15に記載のフィルム。
- 前記補助層(F)が熱可塑性ウレタン系エラストマーを含むことを特徴とする請求項15に記載のフィルム。
- 前記補助層(F)の厚さの合計が10~2000μmの範囲であることを特徴とする請求項15に記載のフィルム。
- 請求項1~23のいずれかに記載のフィルムを用いたタイヤ用インナーライナー。
- 請求項24に記載のタイヤ用インナーライナーを備えることを特徴とするタイヤ。
- 請求項15~23のいずれかに記載のフィルムを用いたタイヤ用インナーライナーを備えるタイヤであって、
前記補助層(F)は、ベルト端からビード部までの領域において、少なくとも30mmの幅に相当する部分の補助層(F)の厚さの合計が、ベルト下部に対応する部分の該補助層(F)の厚さの合計より0.2mm以上厚いことを特徴とするタイヤ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/935,778 US20110024015A1 (en) | 2008-03-31 | 2009-03-31 | Film, inner liner for tire, and tire using the same |
BRPI0910103-9A BRPI0910103B1 (pt) | 2008-03-31 | 2009-03-31 | Película, forro interno para pneu, e pneu usando o mesmo |
EP09728795.7A EP2267073B1 (en) | 2008-03-31 | 2009-03-31 | Film, inner liner for tire, and tire using the inner liner |
CN200980119718XA CN102046724B (zh) | 2008-03-31 | 2009-03-31 | 膜、轮胎用内衬层及使用其的轮胎 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-093149 | 2008-03-31 | ||
JP2008093149 | 2008-03-31 | ||
JP2009083356A JP5592616B2 (ja) | 2008-03-31 | 2009-03-30 | フィルム、タイヤ用インナーライナー及びそれを用いたタイヤ |
JP2009-083356 | 2009-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009123229A1 true WO2009123229A1 (ja) | 2009-10-08 |
Family
ID=41135597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/056735 WO2009123229A1 (ja) | 2008-03-31 | 2009-03-31 | フィルム、タイヤ用インナーライナー及びそれを用いたタイヤ |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110024015A1 (ja) |
EP (1) | EP2267073B1 (ja) |
JP (1) | JP5592616B2 (ja) |
CN (1) | CN102046724B (ja) |
BR (1) | BRPI0910103B1 (ja) |
WO (1) | WO2009123229A1 (ja) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011105046A (ja) * | 2009-11-12 | 2011-06-02 | Bridgestone Corp | 空気入りタイヤ用インナーライナーおよびその製造方法、並びに空気入りタイヤ |
JP4862954B1 (ja) * | 2010-09-13 | 2012-01-25 | 横浜ゴム株式会社 | 熱可塑性樹脂組成物の製造方法 |
JP2012036244A (ja) * | 2010-08-04 | 2012-02-23 | Yokohama Rubber Co Ltd:The | フィルム、積層体およびそれを用いたタイヤ |
US20120227891A1 (en) * | 2011-03-08 | 2012-09-13 | Yukihide Oya | Production method of heavy duty pneumatic tire |
CN102712181A (zh) * | 2009-12-01 | 2012-10-03 | 可乐丽股份有限公司 | 充气轮胎用内衬及其制造方法 |
JP2012250553A (ja) * | 2011-05-31 | 2012-12-20 | Bridgestone Corp | 空気入りタイヤ |
JP2013010347A (ja) * | 2011-05-31 | 2013-01-17 | Bridgestone Corp | 積層体及び空気入りタイヤの製造方法 |
JP2013199268A (ja) * | 2012-03-23 | 2013-10-03 | Formosa Saint Jose Corp | 自動車用フットマットの構造 |
WO2013179691A1 (ja) * | 2012-05-28 | 2013-12-05 | 横浜ゴム株式会社 | 空気入りタイヤ |
EP2623315A4 (en) * | 2010-10-01 | 2014-05-07 | Kuraray Co | MULTILAYER STRUCTURE AND INSIDE COAT AND AIR TIRES THEREWITH |
US9186873B2 (en) | 2009-12-01 | 2015-11-17 | Kuraray Co., Ltd. | Multilayered structure and method for producing the same |
CN107215155A (zh) * | 2012-08-10 | 2017-09-29 | 横滨橡胶株式会社 | 充气轮胎 |
WO2017209212A1 (ja) * | 2016-05-31 | 2017-12-07 | 株式会社クラレ | フィルム、成形体及びフィルムの製造方法 |
JP2017214061A (ja) * | 2016-05-31 | 2017-12-07 | 株式会社クラレ | インナーライナー、空気入りタイヤ、及びそれらの製造方法 |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011161986A (ja) * | 2010-02-05 | 2011-08-25 | Bridgestone Corp | 空気入りタイヤ用インナーライナーおよび空気入りタイヤ |
FR2956616A1 (fr) * | 2010-02-23 | 2011-08-26 | Michelin Soc Tech | Pneumatique comprenant un organe electronique |
JP5720145B2 (ja) | 2010-08-26 | 2015-05-20 | 横浜ゴム株式会社 | 熱可塑性エラストマー組成物およびそれを用いた空気入りタイヤ |
JP5644332B2 (ja) | 2010-09-29 | 2014-12-24 | 横浜ゴム株式会社 | 熱可塑性エラストマー組成物の製造方法 |
JP5247852B2 (ja) | 2010-11-05 | 2013-07-24 | 住友ゴム工業株式会社 | 空気入りタイヤの製造方法 |
JP5225431B2 (ja) * | 2010-12-06 | 2013-07-03 | 住友ゴム工業株式会社 | ストリップ、その製造方法および空気入りタイヤの製造方法 |
US9815330B2 (en) | 2011-05-31 | 2017-11-14 | Bridgestone Corporation | Laminate, tire, and method for producing tire |
JP5718160B2 (ja) * | 2011-05-31 | 2015-05-13 | 株式会社ブリヂストン | 多層構造体、空気入りタイヤ用インナーライナー及び空気入りタイヤ |
JP5707237B2 (ja) * | 2011-05-31 | 2015-04-22 | 株式会社ブリヂストン | 空気入りタイヤ |
CN103648798B (zh) * | 2011-05-31 | 2016-04-20 | 株式会社可乐丽 | 充气轮胎用内衬层、其制造方法及充气轮胎 |
JP6125764B2 (ja) * | 2011-05-31 | 2017-05-10 | 株式会社ブリヂストン | インナーライナー及び空気入りタイヤ |
JP5784369B2 (ja) * | 2011-05-31 | 2015-09-24 | 株式会社ブリヂストン | 多層構造体、空気入りタイヤ用インナーライナー及び空気入りタイヤ |
JP6208927B2 (ja) * | 2011-05-31 | 2017-10-04 | 株式会社ブリヂストン | 多層構造体、空気入りタイヤ用インナーライナー及び空気入りタイヤ |
CN103732398B (zh) * | 2011-05-31 | 2016-07-06 | 株式会社普利司通 | 多层结构体、充气轮胎用气密层以及充气轮胎 |
JP6138429B2 (ja) * | 2011-05-31 | 2017-05-31 | 株式会社ブリヂストン | 多層構造体、タイヤ用インナーライナー及び空気入りタイヤ |
JP5977741B2 (ja) * | 2011-05-31 | 2016-08-24 | 株式会社ブリヂストン | 空気入りタイヤ |
JP6008591B2 (ja) * | 2011-05-31 | 2016-10-19 | 株式会社ブリヂストン | 多層構造体、空気入りタイヤ用インナーライナー及び空気入りタイヤ |
US9925831B2 (en) | 2011-05-31 | 2018-03-27 | Bridgestone Corporation | Multilayer structure, inner liner for pneumatic tire, and pneumatic tire |
CN103732397A (zh) * | 2011-05-31 | 2014-04-16 | 株式会社普利司通 | 多层结构体、充气轮胎用气密层以及充气轮胎 |
JP2012250576A (ja) * | 2011-05-31 | 2012-12-20 | Bridgestone Corp | 多層構造体、空気入りタイヤ用インナーライナー及び空気入りタイヤ |
JP5890615B2 (ja) * | 2011-05-31 | 2016-03-22 | 株式会社ブリヂストン | 空気入りタイヤ |
JP5718161B2 (ja) * | 2011-05-31 | 2015-05-13 | 株式会社ブリヂストン | 多層構造体、空気入りタイヤ用インナーライナー及び空気入りタイヤ |
JP6139817B2 (ja) * | 2011-05-31 | 2017-05-31 | 株式会社ブリヂストン | 多層構造体、空気入りタイヤ用インナーライナー及び空気入りタイヤ |
JP5126395B1 (ja) * | 2011-07-20 | 2013-01-23 | 横浜ゴム株式会社 | ゴム積層体 |
EP2878457A4 (en) * | 2012-07-27 | 2015-12-23 | Bridgestone Corp | LAMINATE FOR INTERNAL COATING AND TIRE USING THE SAME |
US20150328927A1 (en) * | 2012-12-28 | 2015-11-19 | Compagnie Generale Des Establissment Michelin | Thin Film Diffusion Barrier |
KR102062815B1 (ko) * | 2013-05-27 | 2020-01-06 | 코오롱인더스트리 주식회사 | 고분자 필름 |
KR102062816B1 (ko) * | 2013-05-27 | 2020-01-06 | 코오롱인더스트리 주식회사 | 고분자 필름 |
BR112016010960B1 (pt) * | 2013-11-29 | 2021-09-21 | Pirelli Tyre S.P.A. | Pneu autovedante para rodas de veículo, e, compósito de múltiplas camadas tipo tira |
US20160052343A1 (en) * | 2014-08-22 | 2016-02-25 | The Goodyear Tire & Rubber Company | Tire with multilayer innerliner |
US10399391B2 (en) | 2014-12-16 | 2019-09-03 | Triangle Tyre Co., Ltd. | Pneumatic tire having multiple built-in sealant layers and preparation thereof |
CN109810454B (zh) * | 2017-11-22 | 2022-07-08 | 中国石油化工股份有限公司 | 一种免充气轮胎胶料、制备及其应用 |
CN114390974B (zh) * | 2019-09-24 | 2025-03-18 | 株式会社可乐丽 | 多层结构体、成形体和成形体的制造方法 |
FR3157273A1 (fr) * | 2023-12-26 | 2025-06-27 | Compagnie Generale Des Etablissements Michelin | Pneumatique comprenant une structure de rigidification endurante et une interface entre des couches extérieure et intérieure |
CN120116506A (zh) * | 2025-05-13 | 2025-06-10 | 南通纳科达聚氨酯科技有限公司 | 一种自修复tpu改色膜及其制备工艺 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0640207A (ja) | 1992-07-24 | 1994-02-15 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及びその製造方法 |
JPH11199713A (ja) | 1998-01-13 | 1999-07-27 | Yokohama Rubber Co Ltd:The | 熱可塑性エラストマー組成物およびそれを使用した空気入りタイヤ |
JP2002052904A (ja) | 2000-08-11 | 2002-02-19 | Kuraray Co Ltd | タイヤ内面用インナーライナー |
WO2003072653A1 (fr) * | 2002-02-26 | 2003-09-04 | Kuraray Co., Ltd. | Composition de resine et structures multicouches |
JP2004176048A (ja) | 2002-11-13 | 2004-06-24 | Bridgestone Corp | 空気入りタイヤ用インナーライナー及び空気入りタイヤ |
JP2006248445A (ja) * | 2005-03-11 | 2006-09-21 | Bridgestone Corp | タイヤと中空粒子との集合体 |
JP2007008186A (ja) * | 2005-06-28 | 2007-01-18 | Bridgestone Corp | 空気入りタイヤ用インナーライナー及び空気入りタイヤ。 |
WO2007083785A1 (ja) * | 2006-01-17 | 2007-07-26 | The Yokohama Rubber Co., Ltd. | 低透過性ゴム積層体及びそれを用いた空気入りタイヤ |
JP2008024217A (ja) * | 2006-07-24 | 2008-02-07 | Bridgestone Corp | 空気入りタイヤ用インナーライナー及びそれを備えた空気入りタイヤ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1419903B1 (en) * | 2002-11-13 | 2008-05-28 | Bridgestone Corporation | Innerliner for pneumatic tires and pneumatic tire |
EP1837373B1 (en) * | 2005-01-12 | 2019-03-13 | Kuraray Co., Ltd. | Resin composition and film made of same |
JP4963574B2 (ja) * | 2006-07-24 | 2012-06-27 | 株式会社ブリヂストン | 空気入りタイヤ |
EP2517900B1 (en) * | 2006-07-24 | 2014-04-23 | Bridgestone Corporation | Laminated body and method of producing the same as well as innerliner for pneumatic tire and pneumatic tire |
-
2009
- 2009-03-30 JP JP2009083356A patent/JP5592616B2/ja active Active
- 2009-03-31 BR BRPI0910103-9A patent/BRPI0910103B1/pt active IP Right Grant
- 2009-03-31 US US12/935,778 patent/US20110024015A1/en not_active Abandoned
- 2009-03-31 WO PCT/JP2009/056735 patent/WO2009123229A1/ja active Application Filing
- 2009-03-31 EP EP09728795.7A patent/EP2267073B1/en active Active
- 2009-03-31 CN CN200980119718XA patent/CN102046724B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0640207A (ja) | 1992-07-24 | 1994-02-15 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及びその製造方法 |
JPH11199713A (ja) | 1998-01-13 | 1999-07-27 | Yokohama Rubber Co Ltd:The | 熱可塑性エラストマー組成物およびそれを使用した空気入りタイヤ |
JP2002052904A (ja) | 2000-08-11 | 2002-02-19 | Kuraray Co Ltd | タイヤ内面用インナーライナー |
WO2003072653A1 (fr) * | 2002-02-26 | 2003-09-04 | Kuraray Co., Ltd. | Composition de resine et structures multicouches |
JP2004176048A (ja) | 2002-11-13 | 2004-06-24 | Bridgestone Corp | 空気入りタイヤ用インナーライナー及び空気入りタイヤ |
JP2006248445A (ja) * | 2005-03-11 | 2006-09-21 | Bridgestone Corp | タイヤと中空粒子との集合体 |
JP2007008186A (ja) * | 2005-06-28 | 2007-01-18 | Bridgestone Corp | 空気入りタイヤ用インナーライナー及び空気入りタイヤ。 |
WO2007083785A1 (ja) * | 2006-01-17 | 2007-07-26 | The Yokohama Rubber Co., Ltd. | 低透過性ゴム積層体及びそれを用いた空気入りタイヤ |
JP2008024217A (ja) * | 2006-07-24 | 2008-02-07 | Bridgestone Corp | 空気入りタイヤ用インナーライナー及びそれを備えた空気入りタイヤ |
Non-Patent Citations (1)
Title |
---|
See also references of EP2267073A4 * |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011105046A (ja) * | 2009-11-12 | 2011-06-02 | Bridgestone Corp | 空気入りタイヤ用インナーライナーおよびその製造方法、並びに空気入りタイヤ |
CN102712181A (zh) * | 2009-12-01 | 2012-10-03 | 可乐丽股份有限公司 | 充气轮胎用内衬及其制造方法 |
US9186873B2 (en) | 2009-12-01 | 2015-11-17 | Kuraray Co., Ltd. | Multilayered structure and method for producing the same |
CN102712181B (zh) * | 2009-12-01 | 2015-10-14 | 可乐丽股份有限公司 | 充气轮胎用内衬及其制造方法 |
US9873238B2 (en) | 2009-12-01 | 2018-01-23 | Kuraray Co., Ltd. | Inner liner for pneumatic tire and method for producing the same |
JP2012036244A (ja) * | 2010-08-04 | 2012-02-23 | Yokohama Rubber Co Ltd:The | フィルム、積層体およびそれを用いたタイヤ |
CN102639633A (zh) * | 2010-09-13 | 2012-08-15 | 横滨橡胶株式会社 | 热塑性树脂组合物的制造方法 |
CN102639633B (zh) * | 2010-09-13 | 2013-10-02 | 横滨橡胶株式会社 | 热塑性树脂组合物的制造方法 |
WO2012035828A1 (ja) * | 2010-09-13 | 2012-03-22 | 横浜ゴム株式会社 | 熱可塑性樹脂組成物の製造方法 |
JP4862954B1 (ja) * | 2010-09-13 | 2012-01-25 | 横浜ゴム株式会社 | 熱可塑性樹脂組成物の製造方法 |
US10076932B2 (en) | 2010-10-01 | 2018-09-18 | Kuraray Co., Ltd. | Multilayered structure, inner liner having the same, and pneumatic tire |
EP2623315A4 (en) * | 2010-10-01 | 2014-05-07 | Kuraray Co | MULTILAYER STRUCTURE AND INSIDE COAT AND AIR TIRES THEREWITH |
US20120227891A1 (en) * | 2011-03-08 | 2012-09-13 | Yukihide Oya | Production method of heavy duty pneumatic tire |
JP2012250553A (ja) * | 2011-05-31 | 2012-12-20 | Bridgestone Corp | 空気入りタイヤ |
JP2013010347A (ja) * | 2011-05-31 | 2013-01-17 | Bridgestone Corp | 積層体及び空気入りタイヤの製造方法 |
JP2013199268A (ja) * | 2012-03-23 | 2013-10-03 | Formosa Saint Jose Corp | 自動車用フットマットの構造 |
JP2013245318A (ja) * | 2012-05-28 | 2013-12-09 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
US9969873B2 (en) | 2012-05-28 | 2018-05-15 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
WO2013179691A1 (ja) * | 2012-05-28 | 2013-12-05 | 横浜ゴム株式会社 | 空気入りタイヤ |
CN107215155A (zh) * | 2012-08-10 | 2017-09-29 | 横滨橡胶株式会社 | 充气轮胎 |
WO2017209212A1 (ja) * | 2016-05-31 | 2017-12-07 | 株式会社クラレ | フィルム、成形体及びフィルムの製造方法 |
JP2017214061A (ja) * | 2016-05-31 | 2017-12-07 | 株式会社クラレ | インナーライナー、空気入りタイヤ、及びそれらの製造方法 |
JPWO2017209212A1 (ja) * | 2016-05-31 | 2019-03-28 | 株式会社クラレ | フィルム、成形体及びフィルムの製造方法 |
US11718074B2 (en) | 2016-05-31 | 2023-08-08 | Kuraray Co., Ltd. | Film, molded product, and method for producing film |
Also Published As
Publication number | Publication date |
---|---|
BRPI0910103A8 (pt) | 2019-02-05 |
EP2267073B1 (en) | 2016-11-02 |
BRPI0910103B1 (pt) | 2019-04-02 |
BRPI0910103A2 (pt) | 2018-04-24 |
JP2009263653A (ja) | 2009-11-12 |
CN102046724B (zh) | 2013-01-16 |
JP5592616B2 (ja) | 2014-09-17 |
CN102046724A (zh) | 2011-05-04 |
EP2267073A1 (en) | 2010-12-29 |
US20110024015A1 (en) | 2011-02-03 |
EP2267073A4 (en) | 2011-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5592616B2 (ja) | フィルム、タイヤ用インナーライナー及びそれを用いたタイヤ | |
JP4990575B2 (ja) | 空気入りタイヤ用インナーライナー及びそれを備えた空気入りタイヤ | |
JP4589615B2 (ja) | 空気入りタイヤ用インナーライナー及び空気入りタイヤ | |
JP5039332B2 (ja) | 空気入りタイヤ用インナーライナー及びそれを備えた空気入りタイヤ | |
EP2045102B1 (en) | Inner liner for pneumatic tire and pneumatic tire | |
US7600546B2 (en) | Pneumatic tire comprising an innerliner | |
EP2420393B1 (en) | Pneumatic tire | |
JP4939863B2 (ja) | 空気入りタイヤ用インナーライナー及びその製造方法、並びに空気入りタイヤ | |
EP2878457A1 (en) | Laminate for inner liner, and tyre using same | |
WO2008013183A1 (fr) | Revêtement interne pour pneu, son procédé de fabrication et pneu | |
JP2007276235A (ja) | タイヤの製造方法 | |
JP4468073B2 (ja) | 応急用空気入りタイヤ | |
JP2009040117A (ja) | タイヤ | |
JP2007276587A (ja) | タイヤ | |
JP5534784B2 (ja) | 空気入りタイヤ用インナーライナーの製造方法 | |
JP5736239B2 (ja) | タイヤ | |
US20140048192A1 (en) | Pneumatic tire | |
JP2007276581A (ja) | 空気入りタイヤ | |
JP4468074B2 (ja) | ランフラットタイヤ | |
JP2009173114A (ja) | 重荷重用タイヤ | |
JP2007008186A (ja) | 空気入りタイヤ用インナーライナー及び空気入りタイヤ。 | |
JP2011161986A (ja) | 空気入りタイヤ用インナーライナーおよび空気入りタイヤ | |
JP2009154688A (ja) | 重荷重用タイヤ | |
JP2014040217A (ja) | 空気入りタイヤ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980119718.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09728795 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12935778 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2009728795 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009728795 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01E Ref document number: PI0910103 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: PI0910103 Country of ref document: BR Kind code of ref document: A2 Effective date: 20100930 |