WO2009116308A1 - 積層体およびそれを用いた空気入りタイヤ - Google Patents
積層体およびそれを用いた空気入りタイヤ Download PDFInfo
- Publication number
- WO2009116308A1 WO2009116308A1 PCT/JP2009/050595 JP2009050595W WO2009116308A1 WO 2009116308 A1 WO2009116308 A1 WO 2009116308A1 JP 2009050595 W JP2009050595 W JP 2009050595W WO 2009116308 A1 WO2009116308 A1 WO 2009116308A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rubber
- laminate
- composition layer
- weight
- parts
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229920001971 elastomer Polymers 0.000 claims abstract description 82
- 239000005060 rubber Substances 0.000 claims abstract description 82
- 239000000203 mixture Substances 0.000 claims abstract description 60
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 44
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 36
- 239000011342 resin composition Substances 0.000 claims abstract description 32
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 19
- 239000004953 Aliphatic polyamide Substances 0.000 claims abstract description 11
- 229920003231 aliphatic polyamide Polymers 0.000 claims abstract description 11
- 125000003368 amide group Chemical group 0.000 claims abstract description 11
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims abstract description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000005977 Ethylene Substances 0.000 claims abstract description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 239000001361 adipic acid Substances 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 6
- 125000005370 alkoxysilyl group Chemical group 0.000 claims description 5
- 125000003700 epoxy group Chemical group 0.000 claims description 5
- 230000003449 preventive effect Effects 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- 239000005062 Polybutadiene Substances 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- MPPPKRYCTPRNTB-UHFFFAOYSA-N 1-bromobutane Chemical compound CCCCBr MPPPKRYCTPRNTB-UHFFFAOYSA-N 0.000 claims 1
- 229920003049 isoprene rubber Polymers 0.000 claims 1
- 229920003048 styrene butadiene rubber Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 52
- 238000000034 method Methods 0.000 abstract description 11
- 239000012790 adhesive layer Substances 0.000 abstract description 4
- AYEVCQHGOMEGCY-UHFFFAOYSA-N 2,4-dimethylbenzene-1,3-diamine;hexanedioic acid Chemical compound CC1=CC=C(N)C(C)=C1N.OC(=O)CCCCC(O)=O AYEVCQHGOMEGCY-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 238000013329 compounding Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- -1 isoprenecom Polymers 0.000 description 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 125000005372 silanol group Chemical group 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XBTRYWRVOBZSGM-UHFFFAOYSA-N (4-methylphenyl)methanediamine Chemical compound CC1=CC=C(C(N)N)C=C1 XBTRYWRVOBZSGM-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- JMPSLODUIYPLTC-UHFFFAOYSA-N C1(CC2C(CC1)O2)CCOOO[SiH3] Chemical compound C1(CC2C(CC1)O2)CCOOO[SiH3] JMPSLODUIYPLTC-UHFFFAOYSA-N 0.000 description 1
- 101000622004 Crotalus atrox Snake venom metalloproteinase atrolysin-C Proteins 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920003189 Nylon 4,6 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000006295 amino methylene group Chemical group [H]N(*)C([H])([H])* 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229920005557 bromobutyl Polymers 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical group OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- 229910001575 sodium mineral Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
-
- 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
- C08L23/28—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 by reaction with halogens or halogen-containing compounds
- C08L23/283—Iso-olefin halogenated homopolymers or copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- 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
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
Definitions
- the present invention relates to a laminate and a pneumatic tire using the laminate, and more specifically, a laminate including a thermoplastic resin composition layer and a rubber composition layer, and an air using the laminate as a gas permeation preventive layer of a tire.
- a laminate including a thermoplastic resin composition layer and a rubber composition layer, and an air using the laminate as a gas permeation preventive layer of a tire.
- Structures with gas in the internal cavity sealing part such as pneumatic tires and gas hoses are in contact with the internal gas in order to prevent the gas from permeating to the outside through the constituent materials and reducing the internal pressure.
- a material with low gas permeability for the material.
- the rubber material a material having low gas permeability such as butyl rubber is used.
- a resin layer having low gas permeability is provided as an alternative. (For example, Japanese Patent Laid-Open No. 6-400 0 7).
- the adhesive layer must contain a special compounding agent for bonding, and also depends on the type of resin and rubber to be bonded, making the compounding design complicated, and when the adhesive layer becomes hard, it can be used dynamically. It can also be a cause of failure after manufacturing, such as sometimes becoming the starting point of destruction. Therefore, in particular, in a laminate including a thermoplastic resin composition layer and a rubber composition layer, a laminate having high adhesiveness and excellent production processability and durability is desired. Disclosure of the invention
- An object of the present invention is to provide a laminate excellent in adhesiveness between a thermoplastic resin composition layer and a rubber composition layer, and further in durability during use.
- a thermoplastic resin composition layer comprising: a physical layer and a rubber composition layer, wherein the thermoplastic resin composition layer comprises an ethylene-vinyl alcohol copolymer having an ethylene unit content of 20 to 50 mol%, an amide group
- the rubber composition layer comprising at least one selected from the group consisting of an aliphatic polyamide having a molar ratio of methylene groups to less than 5.4, and a metaxylenediamine-adipic acid polycondensate,
- a laminate comprising 30 to 120 parts by weight of wet silica having a BET specific surface area of 100 to 300 m 2 / g with respect to 100 parts by weight of a rubber component, and using the same It is a pneumatic tire.
- thermoplastic resin constituting the thermoplastic resin composition layer in the laminate including the thermoplastic resin composition layer and the rubber composition layer An ethylene-vinyl alcohol copolymer having an ethylene unit content of 20 to 50 mol%, an amide Selected from the group consisting of an aliphatic polyamide having a molar ratio of methylene groups to groups of less than 5.4, and a metaxylenediamine-adipic acid polycondensate, and the rubber composition layer has a rubber component 100 relative to the weight part, 3 0 the wet silica is a BET specific surface area of 1 0 0 3 0 0 m 2 - by incorporating 1 2 0 part by weight, adhesion between the resin composition layer and rubber composition layer, durability It has been found that a laminate having excellent properties can be obtained, and that this laminate can be effectively used as an inner liner of a tire.
- thermoplastic resin composition layer and a rubber composition layer, wherein the thermoplastic resin composition layer has an ethylene unit content of 200 mol%.
- the rubber composition comprising at least one selected from the group consisting of an aliphatic polyamide having a molar ratio of methylene groups to amide groups of less than o. 4 and a methyl xylene diamine adipic acid polycondensate.
- thermoplastic resin in the thermoplastic resin composition layer is an ethylene-vinyl alcohol copolymer (hereinafter also referred to as “EVOH”), an aliphatic polyamide, or a meta-xylenediamine-adipic acid polycondensate. (Hereinafter also referred to as “MXD 6 J”).
- EVOH ethylene-vinyl alcohol copolymer
- MXD 6 J meta-xylenediamine-adipic acid polycondensate
- the ethylene-vinyl alcohol copolymer one having an ethylene unit content of 20 mol%, preferably 240 mol% is used. If the ethylene unit content of the ethylene-vinyl alcohol copolymer is less than 20 mol%, the ethylene-vinyl alcohol copolymer is easily thermally decomposed, and if it is greater than 50 mol%, the ethylene-vinyl alcohol copolymer is easily decomposed. The gas barrier property of the is reduced.
- Ethylene-vinyl The saponification degree of the call copolymer is not particularly limited, but is preferably 90% or more, more preferably 99% or more.
- An ethylene-vinyl alcohol copolymer having an ethylene unit content of 20 to 50 mol% is commercially available.
- Nippon Synthetic Chemical Industry Co., Ltd. It can be obtained from Kuraray Co., Ltd. under the trade name EVAL @ 0 1 5 6 B.
- the aliphatic polyamide one having an amide group and a methylene group and having a molar ratio of a methyl group to an amide group of less than 5.4 is used.
- Examples of aliphatic polyamides having a molar ratio of methylene groups to amide groups of less than 5.4 include Nylon 6, Nylon 66, Nylon 66 6 and Nylon 46.
- the molar ratio of methylene groups to amide groups in the aliphatic polyamide is 5.4 or more, the adhesiveness with the rubber composition containing the wet silica used in the present invention is significantly reduced. It is not preferable from the viewpoint.
- the lower limit of the range of the molar ratio of the methylene group to the amide group in the aliphatic polyamide is not particularly limited, but the molar ratio is preferably 5 or more.
- the degree of polymerization of the ethylene-vinyl alcohol copolymer used in the present invention is not particularly limited, but the intrinsic viscosity is preferably 0.06 LZ g or more, more preferably from 0.07 to 0.2. It is in the range of LZ g.
- the degree of polymerization of the aliphatic polyamido and meta-xylenediamine-adipic acid polycondensate is not particularly limited, and the relative viscosity measured at 25 in a 1% concentrated sulfuric acid solution is in the range of 1.5 to 5.0.
- Metaxylenediamine-adipic acid polycondensate is preferably its basic structure Is represented by the following chemical formula.
- Metaxylene diamine-adipic acid polycondensate is commercially available.
- the wet silica contained in the rubber composition constituting the rubber composition layer of the laminate of the present invention refers to silica synthesized by a neutralization reaction between sodium silicate and mineral acid.
- wet silica There are two types of wet silica: precipitated silica and gel method silica. Any silica can be used.
- a wet silica force satisfying a BET specific surface area of 100 to 300 m 2 is used.
- the “BET specific surface area” means a value measured using a simple BET surface area measuring device.
- Use of wet silica having a BET ratio table area of 100 to 300 m 2 Z g is preferable from the viewpoint of improving the adhesion to the thermoplastic resin composition.
- Such wet silica is commercially available, for example, Z eosi 1 ® 1 6 5 GR (BET specific surface area 1 60 m 2 / g) from Rhodia, Z eosi 1 ® 1 1 It can be obtained under the trade name of 1 5 MP (BET specific surface area 1 20 m 2 / g).
- the amount of wet silica added to the rubber composition is 30 to 120 parts by weight when the total rubber component weight in the composition is 100 parts by weight. From the viewpoints of the adhesion of the rubber and the processability by extrusion of the rubber composition and calendar. If the blending amount is less than 30 parts by weight, it is not preferable in that the effect of improving the adhesion to the thermoplastic resin composition is diminished, and if it exceeds 120 parts by weight, the viscosity of the rubber composition after mixing is not preferable. This is not preferable in that it becomes extremely high, and it becomes difficult to perform sheeting by extrusion or calendar in the next process.
- the rubber component of the rubber composition is preferably a gen rubber, such as natural rubber, isoprenecom, styrene copolymer polymer rubber, or butadiene rubber. Further, other rubber components such as ethylene propylene copolymer rubber and brominated butyl rubber may be used alone or mixed with other rubber components.
- the rubber composition contains a silane coupling agent containing an alkoxysilyl group and an epoxy group.
- a silane coupling agent containing an alkoxysilyl group and an epoxy group with respect to 100 parts by weight of wet silica, the silanol group present on the wet silica surface and the silane coupling agent Since the alkoxysilyl group causes a silanization reaction, the wet silica surface becomes an epoxy group-treated surface state, which has the effect of improving the interaction with the thermoplastic resin composition used in the present invention.
- silane coupling agent containing an alkoxysilyl group and an epoxy group examples include, for example, ⁇ — (3,4_epoxycyclohexyl) ethyl chloride. Toxicisilane, ⁇ - (3,4-epoxycyclohexyl) ethyl trioxysilane, glycidoxypropyl trimethoxysilane, argidoxypropylmethyl methoxysilane, and the like.
- the content of the silane coupling agent in the rubber composition is preferably 1 to 15 parts by weight, more preferably 1 to 10 parts by weight with respect to 100 parts by weight of wet silica.
- the content is less than 1 part by weight, the effect of improving the adhesion to the thermoplastic resin composition is not preferred, and if it exceeds 15 parts by weight, the rubber component does not react with the wet silica surface. It remains as an unreacted substance in the matrix and not only does not improve the adhesion with the thermoplastic resin composition, but also reduces the vulcanization speed during vulcanization, which is the next process, and storage stability when unvulcanized. It is not preferable in that it causes a decrease in sex.
- the wet silica and silane coupling agent may be mixed and processed in advance before blending the wet silica, and the treated silica may be blended with the rubber component, or the silane coupling agent may be blended in the rubber component separately from the silica. You may mix
- the rubber composition according to the present invention includes other reinforcing agents other than silica (such as carbon flack), vulcanization or crosslinking accelerators, anti-aging agents, plastics, and the like.
- Various additives that are generally blended for tires such as additives and other rubber compositions can be blended. These additives are kneaded by a general method to obtain a composition, which is then vulcanized. Or, the amount of these additives that can be used for crosslinking can be the conventional general amount unless it is contrary to the purpose of the present invention.
- thermoplastic resin composition and a rubber composition are co-extruded, a method in which a thermoplastic resin composition and a rubber composition are formed into films, and the two are bonded together by rolling, There is a method of forming a composition and then extruding and rolling another composition onto it.
- a method for forming the thermoplastic resin composition and the rubber composition a method in which both are bonded together by rolling is preferable.
- the thickness of the laminate is not particularly limited, but when used as a gas permeation prevention layer or an inner liner of a pneumatic tire, it is preferably
- the thickness of the thermoplastic resin composition layer constituting the laminate is preferably 1 to 50 m, more preferably 5 to 30 m.
- the thickness of the rubber composition layer constituting the laminate is preferably from 0.1 to 10 mm, more preferably from 0.3 to 1 mm.
- the laminate of the present invention is placed on a tire molding drum and the thermoplasticity of the laminate. Adhere to the cylinder so that the resin composition layer is on the drum side. On top of that, members normally used for manufacturing tires such as a carcass layer, belt layer, and tread layer made of unvulcanized rubber are sequentially laminated, and the drum is removed to make a green evening. Next, a desired pneumatic tire can be manufactured by heat vulcanizing the green tire according to a conventional method.
- Example 1 An example of a method for producing a pneumatic tire using the laminate of the present invention as a gas permeation preventive layer or an inner liner.
- each compounding agent except the vulcanizing agent was kneaded for 5 minutes at a preset temperature of 70 using a 1.7 liter Banbury mixer to obtain a mass batch. It was.
- the vulcanizing agent was kneaded with an 8-inch roll to obtain an unvulcanized rubber composition.
- Each sheet cut into 15 cm ⁇ 15 cm in combination with a functional resin was laminated in order, and vulcanized at 1700 for 10 minutes to obtain a laminate. This laminate was subjected to repeated deformation adhesion evaluation and tire running test when the laminate was used as a tire. The results are shown in Tables 1 and 2.
- a single-layer film having a thickness of 1 O / z m was obtained using a pellet of each thermoplastic resin shown in Table 3 and a molding machine composed of a 4 ⁇ extruder and a die.
- each compounding agent excluding the vulcanizing agent was kneaded with a 1.7-liter Banbury mixer at a preset temperature of 70 minutes for 5 minutes. Then, the vulcanizing agent was kneaded with an 8-inch roll to obtain an unvulcanized rubber composition having a thickness of 2 mm.
- a Dematcher crack tester manufactured by Ueshima Seisakusho a continuous tensile strain of 5 mm with a stroke of 60 mm between chucks was repeatedly applied 10 million times, and then the film from the force flaw was removed. The peeling was visually observed and evaluated according to the following criteria.
- a single layer film having a thickness of 10 m was obtained by using a pellet of each thermoplastic resin shown in Table 3 and a molding machine composed of a 4 ⁇ extruder and a die.
- each compounding agent excluding the vulcanizing agent is kneaded with a 1.7-liter Banbury mixer at a preset temperature of 70 t: for 5 minutes to obtain a master batch.
- the vulcanizing agent was kneaded with 8 inch rolls to obtain an unvulcanized rubber composition having a thickness of 0.5 mm.
- a combination of the above film and an unvulcanized rubber composition, each sheet is laminated in order, and this is used as a tire inner liner (material for air permeation prevention layer).
- Air is sealed at a pressure of 140 kPa with a standard rim specified in the J ATMA standard, using a drum with an outer diameter of 1700 mm, at a room temperature of 38, and a load of 300 k N, traveled at a speed of 100 km at a speed of 80 kmZh, checked for the presence or absence of peeling at the end of the air permeation prevention layer after traveling, and evaluated according to the following criteria.
- a laminate with EVOH resin was prepared using a rubber composition in which the compounding amounts shown in Table 1 were combined using the wet silica used in the present invention, and good results were obtained for both adhesiveness and durability. It was.
- a laminate with the polyamide resin of the type described in Table 1 was prepared using a rubber composition in which the compounding amounts described in Table 1 were combined, and the adhesion and durability were improved.
- a laminate with ⁇ V ⁇ ⁇ resin was created using a rubber composition layer containing carbon black instead of wet silica used in the present invention, but both the adhesion and durability were inferior. .
- a laminate with EVOH resin was prepared using a rubber composition layer in which 20 parts by weight of wet silica used in the present invention was blended with 100 parts by weight of a rubber component, but both adhesiveness and durability were obtained. The result was inferior.
- a laminate with EVOH resin was prepared using a rubber composition containing a different type of silica from the wet silica used in the present invention, but both the adhesiveness and durability were inferior.
- Comparative Example 7 Using a wet silica used in the present invention and a rubber composition in which the compounding amounts shown in Table 1 are combined, lamination with nylon 6 12 (molar ratio of methyl group to amide group is 8) Although the body was made, both the adhesiveness and durability were inferior.
- a laminate with EVOH resin was prepared using the rubber composition blended with the silane strength printing described in Table 1 without using the wet silica used in the present invention, but the results were poor in both adhesion and durability. It became. Industrial applicability
- thermoplastic resin constituting the thermoplastic resin composition layer is an ethylene-vinyl alcohol having an ethylene unit content of 20 to 50 mol%.
- the rubber composition layer is selected from the group consisting of a copolymer, an aliphatic polyamide having a molar ratio of methylene groups to amide groups of less than 5.4, and a metaxylenediamine-adipic acid polycondensate.
- thermoplastic resin composition layer By adding 30 to 120 parts by weight of wet silica having a BET specific surface area of 100 to 300 m 2 Z g with respect to 100 parts by weight of the component, the thermoplastic resin composition layer and the rubber A laminate having excellent adhesion and durability to the composition layer can be obtained, and can be effectively used as an inner liner of a tire.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/933,224 US20110011507A1 (en) | 2008-03-18 | 2009-01-09 | Laminate and pneumatic tire using the laminate |
EP09722473A EP2255978B1 (en) | 2008-03-18 | 2009-01-09 | Laminate and pneumatic tire using the laminate |
CN200980109731.7A CN101977781B (zh) | 2008-03-18 | 2009-01-09 | 层合材料和使用该层合材料的充气轮胎 |
JP2009523103A JP4376316B2 (ja) | 2008-03-18 | 2009-01-09 | 積層体およびそれを用いた空気入りタイヤ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008070423 | 2008-03-18 | ||
JP2008-070423 | 2008-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009116308A1 true WO2009116308A1 (ja) | 2009-09-24 |
Family
ID=41090719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/050595 WO2009116308A1 (ja) | 2008-03-18 | 2009-01-09 | 積層体およびそれを用いた空気入りタイヤ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110011507A1 (ja) |
EP (1) | EP2255978B1 (ja) |
JP (1) | JP4376316B2 (ja) |
CN (1) | CN101977781B (ja) |
WO (1) | WO2009116308A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2594399A1 (en) * | 2010-07-15 | 2013-05-22 | The Yokohama Rubber Co., Ltd. | Laminated body and pneumatic tyre using same |
WO2014168011A1 (ja) * | 2013-04-09 | 2014-10-16 | 三菱瓦斯化学株式会社 | 空気入りタイヤ用インナーライナー |
JP2015505765A (ja) * | 2011-12-09 | 2015-02-26 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | 円周方向補強要素の層を有するタイヤ |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1995079B1 (en) * | 2006-03-03 | 2011-06-29 | The Yokohama Rubber Co., Ltd. | Low permeable rubber laminate and pneumatic tire using same |
US20150101725A1 (en) * | 2012-05-08 | 2015-04-16 | The Yokohama Rubber Co., Ltd. | Pneumatic Tire |
FR3014738A1 (fr) * | 2013-12-17 | 2015-06-19 | Michelin & Cie | Stratifie multicouche pour pneumatique |
Citations (5)
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 |
JPH11240108A (ja) | 1998-02-25 | 1999-09-07 | Yokohama Rubber Co Ltd:The | 積層体およびこれを使用したタイヤ |
JP2006224854A (ja) * | 2005-02-18 | 2006-08-31 | Yokohama Rubber Co Ltd:The | 積層体及びそれを用いた空気入りタイヤ |
WO2007100159A1 (ja) * | 2006-03-03 | 2007-09-07 | 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 |
WO2008013152A1 (fr) * | 2006-07-24 | 2008-01-31 | Bridgestone Corporation | Corps à couches multiples, procédé de fabrication associé, revêtement intérieur pour pneumatique et pneumatique |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5040583A (en) * | 1988-04-11 | 1991-08-20 | Hercules Incorporated | Tire innerliner |
JP2002332381A (ja) * | 2001-05-10 | 2002-11-22 | Sumitomo Chem Co Ltd | ゴム組成物およびそれを用いるタイヤ |
US7259204B2 (en) * | 2004-03-01 | 2007-08-21 | Bridgestone Corporation | Tire compositions comprising surface-modified silica |
-
2009
- 2009-01-09 US US12/933,224 patent/US20110011507A1/en not_active Abandoned
- 2009-01-09 CN CN200980109731.7A patent/CN101977781B/zh not_active Expired - Fee Related
- 2009-01-09 WO PCT/JP2009/050595 patent/WO2009116308A1/ja active Application Filing
- 2009-01-09 JP JP2009523103A patent/JP4376316B2/ja not_active Expired - Fee Related
- 2009-01-09 EP EP09722473A patent/EP2255978B1/en not_active Not-in-force
Patent Citations (5)
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 |
JPH11240108A (ja) | 1998-02-25 | 1999-09-07 | Yokohama Rubber Co Ltd:The | 積層体およびこれを使用したタイヤ |
JP2006224854A (ja) * | 2005-02-18 | 2006-08-31 | Yokohama Rubber Co Ltd:The | 積層体及びそれを用いた空気入りタイヤ |
WO2007100159A1 (ja) * | 2006-03-03 | 2007-09-07 | 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 |
WO2008013152A1 (fr) * | 2006-07-24 | 2008-01-31 | Bridgestone Corporation | Corps à couches multiples, procédé de fabrication associé, revêtement intérieur pour pneumatique et pneumatique |
Non-Patent Citations (1)
Title |
---|
See also references of EP2255978A4 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2594399A1 (en) * | 2010-07-15 | 2013-05-22 | The Yokohama Rubber Co., Ltd. | Laminated body and pneumatic tyre using same |
EP2594399A4 (en) * | 2010-07-15 | 2014-04-30 | Yokohama Rubber Co Ltd | COATED BODY AND AIR TIRES THEREOF |
US9272491B2 (en) | 2010-07-15 | 2016-03-01 | The Yokohama Rubber Co., Ltd. | Laminated body and pneumatic tyre using same |
US9969217B2 (en) | 2010-07-15 | 2018-05-15 | The Yokohama Rubber Co., Ltd. | Laminated body and pneumatic tyre using same |
JP2015505765A (ja) * | 2011-12-09 | 2015-02-26 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | 円周方向補強要素の層を有するタイヤ |
WO2014168011A1 (ja) * | 2013-04-09 | 2014-10-16 | 三菱瓦斯化学株式会社 | 空気入りタイヤ用インナーライナー |
JP2014201721A (ja) * | 2013-04-09 | 2014-10-27 | 三菱瓦斯化学株式会社 | 空気入りタイヤ用インナーライナー |
Also Published As
Publication number | Publication date |
---|---|
JP4376316B2 (ja) | 2009-12-02 |
US20110011507A1 (en) | 2011-01-20 |
CN101977781A (zh) | 2011-02-16 |
CN101977781B (zh) | 2013-01-23 |
JPWO2009116308A1 (ja) | 2011-07-21 |
EP2255978B1 (en) | 2013-02-27 |
EP2255978A4 (en) | 2011-09-21 |
EP2255978A1 (en) | 2010-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7798188B2 (en) | Laminate of thermoplastic resin and rubber and pneumatic tire using the same | |
US8056595B2 (en) | Low-permeable rubber laminate and pneumatic tire using same | |
JP5644332B2 (ja) | 熱可塑性エラストマー組成物の製造方法 | |
JP5754092B2 (ja) | 積層体およびそれを用いた空気入りタイヤ | |
US9815330B2 (en) | Laminate, tire, and method for producing tire | |
WO2005030479A1 (ja) | 積層体及びそれを用いた空気入りタイヤ | |
WO2008013152A1 (fr) | Corps à couches multiples, procédé de fabrication associé, revêtement intérieur pour pneumatique et pneumatique | |
WO2009116308A1 (ja) | 積層体およびそれを用いた空気入りタイヤ | |
CN101659724B (zh) | 改性的乙烯-乙烯醇共聚物、阻气性树脂及其模制品 | |
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 | |
CN110234704B (zh) | 热塑性树脂组合物、内衬层及充气轮胎 | |
EP3321318B1 (en) | Thermoplastic resin composition, inner liner and pneumatic tire | |
US9718311B2 (en) | Pneumatic tire | |
JP2007276235A (ja) | タイヤの製造方法 | |
US9267025B2 (en) | Method for producing thermoplastic elastomer composition | |
JP7406068B2 (ja) | インナーライナー、積層体および空気入りタイヤ | |
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。 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980109731.7 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009523103 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09722473 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12933224 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009722473 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |