WO2012011561A1 - ゴム組成物及び空気入りタイヤ - Google Patents
ゴム組成物及び空気入りタイヤ Download PDFInfo
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- WO2012011561A1 WO2012011561A1 PCT/JP2011/066689 JP2011066689W WO2012011561A1 WO 2012011561 A1 WO2012011561 A1 WO 2012011561A1 JP 2011066689 W JP2011066689 W JP 2011066689W WO 2012011561 A1 WO2012011561 A1 WO 2012011561A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/22—Incorporating nitrogen atoms into the molecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/25—Incorporating silicon atoms into the molecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
- C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
- C08C19/44—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
-
- 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
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L21/00—Compositions of unspecified rubbers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Definitions
- the present invention relates to a rubber composition and a pneumatic tire produced using the rubber composition.
- rubber compositions used for automobile tires are also required to have excellent fuel efficiency.
- rubber compositions for automobile tires rubber compositions containing conjugated diene polymers such as polybutadiene and butadiene-styrene copolymers and fillers such as carbon black and silica are used.
- Patent Document 1 proposes a method using a diene rubber modified with an organosilicon compound containing an amino group and an alkoxy group.
- the performance required for rubber compositions for automobile tires includes wet grip performance and wear resistance, but these performances are generally in contradiction to low fuel consumption. It was difficult to obtain a high dimension and good balance.
- An object of the present invention is to solve the above-mentioned problems and to provide a rubber composition that can improve fuel economy, wet grip performance, and wear resistance in a well-balanced manner, and a pneumatic tire using the same.
- the present invention is a conjugated diene polymer containing a rubber component and silica and having a structural unit based on a conjugated diene and a structural unit represented by the following formula (I) in 100% by mass of the rubber component.
- the content of the conjugated diene polymer obtained by modifying at least one end of the polymer with the compound represented by the following formula (II) is 5% by mass or more, and the content of the silica with respect to 100 parts by mass of the rubber component Relates to a rubber composition in which is 5 to 150 parts by mass.
- X 1 , X 2 and X 3 each independently represent a group represented by the following formula (Ia), a hydroxyl group, a hydrocarbyl group or a substituted hydrocarbyl group, and at least one of X 1 , X 2 and X 3 One is a group or a hydroxyl group represented by the following formula (Ia).
- R 1 and R 2 each independently represent a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having a carbon number of 1-6, a silyl group, or a substituted silyl group, R 1 and R 2 may be bonded to form a ring structure with the nitrogen atom.
- n represents an integer of 1 to 10
- R 3 , R 4 and R 5 each independently represents a hydrocarbyl group having 1 to 4 carbon atoms or a hydrocarbyloxy group having 1 to 4 carbon atoms.
- at least one of R 3 , R 4 and R 5 is a hydrocarbyloxy group
- A represents a functional group having a nitrogen atom.
- R 1 and R 2 in the above formula (Ia) are preferably hydrocarbyl groups having 1 to 6 carbon atoms.
- Two of X 1 , X 2 and X 3 in the formula (I) are preferably a group or a hydroxyl group represented by the formula (Ia).
- a in the above formula (II) is preferably a group represented by the following formula (IIa).
- R 6 and R 7 each independently has 1 to 6 carbon atoms which may have at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom and a silicon atom.
- R 6 and R 7 may be bonded to form a ring structure with the nitrogen atom, and R 6 and R 7 may be the same group bonded to the nitrogen by a double bond.
- the vinyl bond content of the conjugated diene polymer is preferably 10 mol% or more and 80 mol% or less, with the content of the constituent unit based on the conjugated diene being 100 mol%.
- the rubber composition preferably contains natural rubber and / or butadiene rubber.
- the silica preferably has a nitrogen adsorption specific surface area of 40 to 400 m 2 / g.
- the rubber composition is preferably used as a tread rubber composition.
- the present invention also relates to a pneumatic tire produced using the rubber composition.
- the present invention since it is a rubber composition containing a specific conjugated diene polymer and silica, it is possible to provide a pneumatic tire with improved fuel economy, wet grip performance and wear resistance in a well-balanced manner. .
- the rubber composition of the present invention is a conjugated diene polymer having a constitutional unit based on a conjugated diene and a constitutional unit represented by the following formula (I), and is polymerized by a compound represented by the following formula (II). and a conjugated diene polymer comprising at least one end of coalescence is modified, and a silica.
- X 1 , X 2 and X 3 each independently represent a group represented by the following formula (Ia), a hydroxyl group, a hydrocarbyl group or a substituted hydrocarbyl group, and at least one of X 1 , X 2 and X 3
- One is a group or a hydroxyl group represented by the following formula (Ia).
- R 1 and R 2 each independently represent a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having a carbon number of 1-6, a silyl group, or a substituted silyl group, R 1 and R 2 may be bonded to form a ring structure with the nitrogen atom.
- n represents an integer of 1 to 10
- R 3 , R 4 and R 5 each independently represents a hydrocarbyl group having 1 to 4 carbon atoms or a hydrocarbyloxy group having 1 to 4 carbon atoms.
- at least one of R 3 , R 4 and R 5 is a hydrocarbyloxy group
- A represents a functional group having a nitrogen atom.
- conjugated diene based on the conjugated diene examples include 1,3-butadiene, isoprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, 1,3-hexadiene, and the like. These may be one type or two or more types. From the viewpoint of availability, 1,3-butadiene and isoprene are preferred.
- X 1 , X 2 and X 3 in formula (I) of the structural unit represented by formula (I) each independently represent a group represented by formula (Ia), a hydroxyl group, a hydrocarbyl group or a substituted hydrocarbyl group.
- X 1 , X 2 and X 3 are a group represented by the formula (Ia) or a hydroxyl group.
- R 1 and R 2 of formula (Ia) represent each independently, a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having a carbon number of 1-6, a silyl group, or a substituted silyl group, R 1 And R 2 may be bonded together to form a ring structure together with the nitrogen atom.
- a hydrocarbyl group represents a hydrocarbon residue.
- the hydrocarbon residue represents a monovalent group obtained by removing hydrogen from a hydrocarbon.
- a substituted hydrocarbyl group represents a group in which one or more hydrogen atoms of a hydrocarbon residue are substituted with a substituent.
- the hydrocarbyloxy group represents a group in which a hydrogen atom of a hydroxyl group is substituted with a hydrocarbyl group
- the substituted hydrocarbyloxy group represents a group in which one or more hydrogen atoms of the hydrocarbyloxy group are substituted with a substituent.
- the substituted silyl group represents a group in which one or more hydrogen atoms of the silyl group are substituted with a substituent.
- Examples of the hydrocarbyl group having 1 to 6 carbon atoms in R 1 and R 2 include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, n- Examples thereof include alkyl groups such as pentyl group, neopentyl group, isopentyl group and n-hexyl group; cycloalkyl groups such as cyclohexyl group; phenyl groups and the like.
- the substituted hydrocarbyl group having 1 to 6 carbon atoms in R 1 and R 2 is at least one group selected from the group consisting of a group having a nitrogen atom, a group having an oxygen atom, and a group having a silicon atom.
- the substituted hydrocarbyl group which has as a substituent can be mentioned.
- Examples of the group having a nitrogen atom group as a substituent include dialkylaminoalkyl groups such as a dimethylaminoethyl group and a diethylaminoethyl group.
- Examples of the group having an oxygen atom group as a substituent include methoxymethyl Group, methoxyethyl group, ethoxymethyl group, alkoxyalkyl group such as ethoxyethyl group, and the like.
- a silicon atom group as a substituent a trialkylsilylalkyl group such as trimethylsilylmethyl group, etc. Can be mentioned.
- Examples of the substituted silyl group for R 1 and R 2 include trialkylsilyl groups such as a trimethylsilyl group, a triethylsilyl group, and a t-butyldimethylsilyl group.
- the group to which R 1 and R 2 are bonded is a divalent group having 1 to 12 carbon atoms which may have at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom and a silicon atom.
- Groups for example, an alkylene group such as a trimethylene group, a tetramethylene group, a pentamethylene group, or a hexamethylene group; an oxydialkylene group such as an oxydiethylene group or an oxydipropylene group; —CH 2 CH 2 —NH—CH 2 — And a nitrogen-containing group such as a group represented by —CH 2 CH 2 —N ⁇ CH—.
- the group to which R 1 and R 2 are bonded is preferably a nitrogen-containing group, a group represented by —CH 2 CH 2 —NH—CH 2 —, a group represented by —CH 2 CH 2 —N ⁇ CH—. Is more preferable.
- the hydrocarbyl group of R 1 and R 2 is preferably an alkyl group, more preferably an alkyl group having 1 to 4 carbon atoms, more preferably a methyl group, an ethyl group, an n-propyl group, or an n-butyl group. And the group n-butyl is particularly preferred.
- the substituted hydrocarbyl group for R 1 and R 2 is preferably an alkoxyalkyl group, more preferably an alkoxyalkyl group having 1 to 4 carbon atoms.
- the substituted silyl group for R 1 and R 2 is preferably a trialkylsilyl group, and more preferably a trimethylsilyl group.
- R 1 and R 2 are preferably an alkyl group, an alkoxyalkyl group, a substituted silyl group, or a nitrogen-containing group to which R 1 and R 2 are bonded, more preferably an alkyl group, still more preferably carbon. It is an alkyl group having 1 to 4 atoms, and more preferably a methyl group, an ethyl group, an n-propyl group, or an n-butyl group.
- acyclic amino group include dimethylamino group, diethylamino group, di (n-propyl) amino group, di (isopropyl) amino group, di (n-butyl) amino group, di (sec-butyl) amino group, di ( dialkylamino groups such as tert-butyl) amino group, di (neopentyl) amino group, ethylmethylamino group; di (methoxymethyl) amino group, di (methoxyethyl) amino group, di (ethoxymethyl) amino group, di ( And di (alkoxyalkyl) amino groups such as ethoxyethyl) amino group; and di (trialkylsilyl) amino groups such as di (trimethylsilyl) amino group and di (t-butyldimethylsilyl) amino group.
- Examples of the cyclic amino group include 1-pyrrolidinyl group, 1-piperidino group, 1-hexamethyleneimino group, 1-heptamethyleneimino group, 1-octamethyleneimino group, 1-decamethyleneimino group, 1-dodecamethyleneimino group. Mention may be made of 1-polymethyleneimino groups such as groups.
- Examples of the cyclic amino group include 1-imidazolyl group, 4,5-dihydro-1-imidazolyl group, 1-imidazolidinyl group, 1-piperazinyl group, morpholino group and the like.
- the group represented by the formula (Ia) is preferably an acyclic amino group, more preferably a dialkylamino group, and still more preferably a carbon atom number of 1 to 1, in view of economy and availability.
- Examples of the hydrocarbyl group of X 1 , X 2 and X 3 in the formula (I) include alkyl groups such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group and tert-butyl group. The group can be mentioned.
- examples of the substituted hydrocarbyl group include alkoxyalkyl groups such as a methoxymethyl group, an ethoxymethyl group, a methoxyethyl group, and an ethoxyethyl group.
- the hydrocarbyl group of X 1 , X 2 and X 3 is preferably an alkyl group, more preferably an alkyl group having 1 to 4 carbon atoms, and still more preferably a methyl group or an ethyl group.
- the substituted hydrocarbyl group of X 1 , X 2 and X 3 is preferably an alkoxyalkyl group, more preferably an alkoxyalkyl group having 1 to 4 carbon atoms.
- the hydrocarbyl group and substituted hydrocarbyl group of X 1 , X 2 and X 3 are preferably an alkyl group or an alkoxyalkyl group, more preferably an alkyl group having 1 to 4 carbon atoms or a carbon atom number of 1
- An alkoxyalkyl group having 4 to 4 more preferably an alkyl group having 1 to 4 carbon atoms, and still more preferably a methyl group or an ethyl group.
- At least one of X 1 , X 2 and X 3 in the formula (I) is a group or a hydroxyl group represented by the formula (Ia).
- X 1 , X 2 and X 3 are a group or a hydroxyl group represented by the formula (Ia), more preferably two of X 1 , X 2 and X 3 are represented by the formula (Ia ) Or a hydroxyl group.
- At least one of X 1 , X 2, and X 3 is a hydroxyl group from the viewpoint that low fuel consumption, wet grip performance, and wear resistance can be obtained in a high-order and well-balanced manner, and X 1 , X 2 and It is more preferable that two or more of X 3 are hydroxyl groups, and it is still more preferable that two of X 1 , X 2 and X 3 are hydroxyl groups.
- X 1 , X 2 and X 3 are acyclic amino groups or hydroxyl groups.
- a structural unit is preferred.
- X 1 , X 2 and X 3 are acyclic amino groups
- bis (dialkylamino) alkylvinylsilane units are preferred, bis (dimethylamino) methylvinylsilane units, bis (diethylamino) methylvinylsilane units, Bis (di (n-propyl) amino) methylvinylsilane units and bis (di (n-butyl) amino) methylvinylsilane units are more preferred.
- X 1 , X 2 and X 3 are hydroxyl groups
- a dihydroxyalkylvinylsilane unit is preferable, and a dihydroxymethylvinylsilane unit is more preferable.
- the content of the structural unit represented by the formula (I) in the conjugated diene polymer is preferably 0 per unit mass of the polymer from the viewpoint of improving fuel economy, wet grip performance and wear resistance in a balanced manner. It is 0.001 mmol / g polymer or more and 0.1 mmol / g polymer or less. More preferably, it is 0.002 mmol / g polymer or more and 0.07 mmol / g polymer or less. More preferably, it is 0.003 mmol / g polymer or more and 0.05 mmol / g polymer or less.
- the conjugated diene polymer is a polymer obtained by modifying at least one end of a polymer with a compound represented by the following formula (II).
- n represents an integer of 1 to 10
- R 3 , R 4 and R 5 each independently represents a hydrocarbyl group having 1 to 4 carbon atoms or a hydrocarbyloxy group having 1 to 4 carbon atoms.
- at least one of R 3 , R 4 and R 5 is a hydrocarbyloxy group
- A represents a functional group having a nitrogen atom.
- R 3 , R 4 and R 5 in the formula (II) each independently represent a hydrocarbyl group having 1 to 4 carbon atoms or a hydrocarbyloxy group having 1 to 4 carbon atoms, and R 3 , R 4 and At least one of R 5 is a hydrocarbyloxy group.
- hydrocarbyl groups of R 3 , R 4 and R 5 include alkyl groups such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group and tert-butyl group. Can do.
- hydrocarbyloxy group of R 3 , R 4 and R 5 include alkoxy groups such as methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, sec-butoxy group, and t-butoxy group. Can be mentioned.
- the hydrocarbyl group of R 3 , R 4 and R 5 is preferably an alkyl group, more preferably an alkyl group having 1 to 3 carbon atoms, still more preferably a methyl group or an ethyl group.
- the hydrocarbyloxy group of R 3 , R 4 and R 5 is preferably an alkoxy group, more preferably an alkoxy group having 1 to 3 carbon atoms, still more preferably a methoxy group, ethoxy group It is a group.
- R 3 , R 4 and R 5 preferably, at least two of R 3 , R 4 and R 5 are hydrocarbyloxy groups from the viewpoint of improving fuel economy, wet grip performance and wear resistance in a balanced manner. More preferably, three of R 3 , R 4 and R 5 are hydrocarbyloxy groups.
- N in the formula (II) represents an integer of 1 to 10. From the viewpoint of improving the fuel efficiency, wet grip performance and wear resistance in a well-balanced manner, it is preferably 3 or more, and from the viewpoint of improving economy, it is preferably 4 or less. Particularly preferred is 3.
- a in the formula (II) is a functional group having a nitrogen atom, and examples thereof include an amino group, an isocyano group, a cyano group, a pyridyl group, a piperidyl group, a pyrazinyl group, and a morpholino group.
- A is preferably a group represented by the following formula (IIa).
- R 6 and R 7 each independently has 1 to 6 carbon atoms which may have at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom and a silicon atom.
- R 6 and R 7 may be bonded to form a ring structure with the nitrogen atom, and R 6 and R 7 may be the same group bonded to the nitrogen by a double bond.
- R 6 and R 7 in the formula (IIa) include a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having 1 to 6 carbon atoms, and a substituted silyl group.
- hydrocarbyl group of R 6 and R 7 examples include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, n-pentyl group, neopentyl group, isopentyl group And alkyl groups such as n-hexyl group; cycloalkyl groups such as cyclohexyl group; phenyl groups and the like.
- the substituted hydrocarbyl group of R 6 and R 7 is a substituted hydrocarbyl group having as a substituent at least one group selected from the group consisting of a group having a nitrogen atom, a group having an oxygen atom, and a group having a silicon atom.
- a group having a nitrogen atom group as a substituent include dialkylaminoalkyl groups such as a dimethylaminoethyl group and a diethylaminoethyl group.
- Examples of the group having an oxygen atom group as a substituent include methoxymethyl Group, alkoxyalkyl group such as methoxyethyl group, ethoxymethyl group, ethoxyethyl group; alkylene oxide group such as epoxy group, tetrahydrofuranyl group; alkylene oxide alkyl group such as glycidyl group, tetrahydrofurfuryl group, etc.
- Examples of the group having a group having a silicon atom as a substituent include a trialkylsilylalkyl group such as a trimethylsilylmethyl group.
- the alkylene oxide group represents a monovalent group obtained by removing a hydrogen atom from a ring of a cyclic ether compound.
- the alkylene oxide alkyl group represents a group in which one or more hydrogen atoms of the alkyl group are substituted with an alkylene oxide group.
- Examples of the substituted silyl group for R 6 and R 7 include trialkylsilyl groups such as trimethylsilyl group, triethylsilyl group and t-butyldimethylsilyl group; trialkoxysilyl groups such as trimethoxysilyl group.
- the group to which R 6 and R 7 are bonded is a divalent group having 2 to 12 carbon atoms, which may have at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom and a silicon atom.
- Groups for example, an alkylene group such as a trimethylene group, a tetramethylene group, a pentamethylene group, or a hexamethylene group; an oxydialkylene group such as an oxydiethylene group or an oxydipropylene group; —CH 2 CH 2 —NH—CH 2 — And a nitrogen-containing group such as a group represented by —CH 2 CH 2 —N ⁇ CH—.
- the group to which R 6 and R 7 are bonded is preferably a nitrogen-containing group, a group represented by —CH 2 CH 2 —NH—CH 2 —, a group represented by —CH 2 CH 2 —N ⁇ CH—. Is more preferable.
- the same group bonded to the nitrogen of R 6 and R 7 with a double bond is the number of carbon atoms optionally having at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom and a silicon atom 2 to 12 divalent groups.
- Examples thereof include an ethylidene group, 1-methylpropylidene group, 1,3-dimethylbutylidene group, 1-methylethylidene group, 4-N, N-dimethylaminobenzylidene group.
- the hydrocarbyl group of R 6 and R 7 is preferably an alkyl group, more preferably an alkyl group having 1 to 4 carbon atoms, still more preferably a methyl group, an ethyl group, or an n-propyl group. N-butyl group, more preferably a methyl group or an ethyl group.
- the substituted hydrocarbyl group for R 6 and R 7 is preferably an alkoxyalkyl group, an alkylene oxide group, or an alkylene oxide alkyl group.
- the substituted silyl group for R 6 and R 7 is preferably a trialkylsilyl group or a trialkoxysilyl group, more preferably a trialkylsilyl group, still more preferably a trimethylsilyl group or a triethylsilyl group. .
- R 6 and R 7 are preferably a nitrogen-containing group, an alkyl group, an alkoxyalkyl group, an alkylene oxide group, an alkylene oxide alkyl group or a substituted silyl group to which R 6 and R 7 are bonded, and more preferably an alkyl group.
- acyclic amino group include dimethylamino group, diethylamino group, di (n-propyl) amino group, di (isopropyl) amino group, di (n-butyl) amino group, di (sec-butyl) amino group, di ( dialkylamino groups such as tert-butyl) amino group, di (neopentyl) amino group, ethylmethylamino group; di (methoxymethyl) amino group, di (methoxyethyl) amino group, di (ethoxymethyl) amino group, di ( And di (alkoxyalkyl) amino groups such as ethoxyethyl) amino group; and di (trialkylsilyl) amino groups such as di (trimethylsilyl) amino group and di (t-butyldimethylsilyl) amino group.
- di (alkylene oxide) amino groups such as di (epoxy) amino groups and di (tetrahydrofuranyl) amino groups
- di (alkylene oxide alkyl) amino groups such as di (glycidyl) amino groups and di (tetrahydrofurfuryl) amino groups
- the group can be mentioned.
- an ethylideneamino group, a 1-methylpropylideneamino group, a 1,3-dimethylbutylideneamino group, a 1-methylethylideneamino group, a 4-N, N-dimethylaminobenzylideneamino group and the like can also be mentioned.
- the di (alkylene oxide) amino group represents an amino group in which two hydrogen atoms bonded to a nitrogen atom are substituted with two alkylene oxide groups
- the di (alkylene oxide alkyl) amino group Represents an amino group in which two hydrogen atoms bonded to a nitrogen atom are substituted with two alkylene oxide alkyl groups.
- Examples of the cyclic amino group include 1-pyrrolidinyl group, 1-piperidino group, 1-hexamethyleneimino group, 1-heptamethyleneimino group, 1-octamethyleneimino group, 1-decamethyleneimino group, 1-dodecamethyleneimino group. Mention may be made of 1-polymethyleneimino groups such as groups.
- Examples of the cyclic amino group include 1-imidazolyl group, 4,5-dihydro-1-imidazolyl group, 1-imidazolidinyl group, 1-piperazinyl group, morpholino group and the like.
- the group represented by the formula (IIa) is preferably an acyclic amino group, more preferably a dialkyl, from the viewpoint of low fuel consumption, wet grip performance, wear resistance, long-term stability and availability of the compound.
- the formula (IIa) is a dialkylamino group, a di (alkoxyalkyl) amino group, a di (alkyleneoxide) amino group, a di (alkyleneoxidealkyl) amino group, a trialkylsilyl group. And a compound that is an acyclic amino group such as a group.
- [3- (dialkylamino) propyl] trialkoxysilane is preferred, [3- (dimethylamino) propyl] trimethoxysilane, [3- (diethylamino) propyl] trimethoxysilane, [3- (dimethylamino) propyl] triethoxysilane, [3- (Diethylamino) propyl] triethoxysilane is more preferred.
- the formula (IIa) is a 1-piperidino group, 1-hexamethyleneimino group, 1-imidazolyl group, 4,5-dihydro-1-imidazolyl group, 1-piperidino group, 1-hexamethyleneimino group, 1-imidazolyl group, 4,5-dihydro-1-imidazolyl group, Examples thereof include compounds that are cyclic amino groups such as piperazinyl group and morpholino group.
- Examples of the compound in which the formula (IIa) is a 1-piperidino group include 3- (1-piperidino) propyltrimethoxysilane, 3- (1-piperidino) propyltriethoxysilane, 3- (1-piperidino) propylmethyldimethoxysilane 3- (1-piperidino) propylethyldimethoxysilane, 3- (1-piperidino) propylmethyldiethoxysilane, 3- (1-piperidino) propylethyldiethoxysilane, and the like.
- Examples of the compound in which the formula (IIa) is a 1-hexamethyleneimino group include 3- (1-hexamethyleneimino) propyltrimethoxysilane, 3- (1-hexamethyleneimino) propyltriethoxysilane, 3- (1-hexamethyleneimino) propylmethyldimethoxysilane, 3- (1-hexamethyleneimino) propylethyldimethoxysilane, 3- (1-hexamethyleneimino) propylmethyldiethoxysilane, , And the like 3- (1-hexamethyleneimino) propyl ethyl diethoxy silane.
- N- (3-trimethoxysilylpropyl) imidazole examples thereof include N- (3-triethoxysilylpropyl) imidazole.
- the compound formula (IIa) is a 4,5-dihydro-1-imidazolyl group, N- (3-trimethoxysilylpropyl) -4,5-dihydroimidazole, , And the like N- (3- triethoxysilylpropyl) -4,5-dihydroimidazole.
- Examples of the compound in which the formula (IIa) is a 1-piperazinyl group include 3- (1-piperazinyl) propyltrimethoxysilane, 3- (1-piperazinyl) propyltriethoxysilane, 3- (1-piperazinyl) propylmethyldimethoxysilane, 3- (1-piperazinyl) propylethyldimethoxysilane, 3- (1-piperazinyl) propylmethyldiethoxysilane, And 3- (1-piperazinyl) propylethyldiethoxysilane.
- the conjugated diene polymer may have a constituent unit based on another monomer in addition to the constituent unit based on the conjugated diene (conjugated diene unit).
- the other monomer include aromatic vinyl, vinyl nitrile, and unsaturated carboxylic acid ester.
- the aromatic vinyl include styrene, ⁇ -methylstyrene, vinyl toluene, vinyl naphthalene, divinyl benzene, trivinyl benzene, and divinyl naphthalene.
- Examples of the vinyl nitrile include acrylonitrile, and examples of the unsaturated carboxylic acid ester include methyl acrylate, ethyl acrylate, methyl methacrylate, and ethyl methacrylate. Among these, aromatic vinyl is preferable, and styrene is more preferable.
- the conjugated diene polymer preferably has a structural unit based on aromatic vinyl (aromatic vinyl unit) from the viewpoint of wear resistance.
- the content of the aromatic vinyl unit is preferably a conjugated diene unit.
- the total amount of aromatic vinyl units is 100% by mass, preferably 10% by mass or more (conjugated diene unit content is 90% by mass or less), more preferably 15% by mass or more (conjugate diene unit content) Is 85% by mass or less).
- the content of the aromatic vinyl unit is preferably 50% by mass or less (the content of the conjugated diene unit is 50% by mass or more), more preferably 45% by mass or less (conjugated diene).
- the unit content is 55% by mass or more).
- the vinyl bond content of the conjugated diene polymer is preferably 80 mol% or less, more preferably 70 mol% or less from the viewpoint of fuel efficiency, with the content of the conjugated diene unit being 100 mol%. Moreover, from a viewpoint of wet grip performance, Preferably it is 10 mol% or more, More preferably, it is 15 mol% or more, More preferably, it is 20 mol% or more, Most preferably, it is 40 mol% or more.
- the vinyl bond amount is determined from the absorption intensity in the vicinity of 910 cm ⁇ 1, which is the vinyl group absorption peak, by infrared spectroscopy.
- the molecular weight distribution of the conjugated diene polymer is preferably 1 to 5 and more preferably 1 to 2 from the viewpoint of low fuel consumption.
- the molecular weight distribution is obtained by measuring the number average molecular weight (Mn) and the weight average molecular weight (Mw) by gel permeation chromatography (GPC) method and dividing Mw by Mn.
- Step A In a hydrocarbon solvent, a monomer containing a conjugated diene and a vinyl compound represented by the following formula (III) is polymerized with an alkali metal catalyst, and a monomer unit based on the conjugated diene and A step of obtaining a polymer having an alkali metal derived from the catalyst at at least one end of a polymer chain having a monomer unit based on a vinyl compound represented by the formula (III).
- X 4 , X 5 and X 6 each independently represent a group represented by the following formula (IIIa), a hydrocarbyl group or a substituted hydrocarbyl group, wherein at least one of X 4 , X 5 and X 6 is And a group represented by the following formula (IIIa).
- R 8 and R 9 each independently represent a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having a carbon number of 1-6, a silyl group, or a substituted silyl group, R 8 and R 9 may be bonded to form a ring structure with the nitrogen atom.
- Step B A step of reacting the polymer obtained in Step A with the compound represented by the following formula (II).
- n represents an integer of 1 to 10
- R 3 , R 4 and R 5 each independently represents a hydrocarbyl group having 1 to 4 carbon atoms or a hydrocarbyloxy group having 1 to 4 carbon atoms.
- at least one of R 3 , R 4 and R 5 is a hydrocarbyloxy group, and A represents a functional group having a nitrogen atom.
- Examples of the alkali metal catalyst used in (Step A) include an alkali metal, an organic alkali metal compound, a complex of an alkali metal and a polar compound, an oligomer having an alkali metal, and the like.
- Examples of the alkali metal include lithium, sodium, potassium, rubidium, cesium and the like.
- organic alkali metal compound examples include ethyl lithium, n-propyl lithium, iso-propyl lithium, n-butyl lithium, sec-butyl lithium, t-octyl lithium, n-decyl lithium, phenyl lithium, 2-naphthyl lithium, 2 -Butylphenyllithium, 4-phenylbutyllithium, cyclohexyllithium, 4-cyclopentyllithium, dimethylaminopropyllithium, diethylaminopropyllithium, t-butyldimethylsiloxypropyllithium, N-morpholinopropyllithium, lithium hexamethyleneimide, lithium pyrrole Zido, lithium piperidide, lithium heptamethylene imide, lithium dodecamethylene imide, 1,4-dilithio-2-butene, sodium naphthalenide, sodium Bifenirido, such as potassium napthalenide can be
- Examples of the complex of alkali metal and polar compound include potassium-tetrahydrofuran complex and potassium-diethoxyethane complex.
- Examples of the oligomer having alkali metal include sodium salt of ⁇ -methylstyrene tetramer. Can do. Among these, an organic lithium compound or an organic sodium compound is preferable, and an organic lithium compound or an organic sodium compound having 2 to 20 carbon atoms is more preferable.
- the hydrocarbon solvent used in (Step A) is a solvent that does not deactivate the organic alkali metal compound catalyst, and examples thereof include aliphatic hydrocarbons, aromatic hydrocarbons, and alicyclic hydrocarbons.
- examples of the aliphatic hydrocarbon include propane, n-butane, iso-butane, n-pentane, iso-pentane, n-hexane, propene, 1-butene, iso-butene, trans-2-butene, cis-2- Examples include butene, 1-pentene, 2-pentene, 1-hexene, and 2-hexene.
- examples of the aromatic hydrocarbon include benzene, toluene, xylene, and ethylbenzene
- examples of the alicyclic hydrocarbon include cyclopentane and cyclohexane. These may be used alone or in combination of two or more. Of these, hydrocarbons having 2 to 12 carbon atoms are preferable.
- a monomer containing a conjugated diene and a vinyl compound represented by formula (III) is polymerized, and a conjugated diene polymer having an alkali metal derived from the above-mentioned alkali metal catalyst at the end of the polymer chain.
- the conjugated diene include 1,3-butadiene, isoprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, and 1,3-hexadiene. Used in combination of more than one species. Of these, 1,3-butadiene and isoprene are preferred from the viewpoint of availability.
- X 4 , X 5 and X 6 in the formula (III) each independently represent a group represented by the formula (IIIa), a hydrocarbyl group or a substituted hydrocarbyl group, and at least one of X 4 , X 5 and X 6 Is a group represented by the formula (IIIa).
- R 8 and R 9 of formula (IIIa) represent each independently, a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having a carbon number of 1-6, a silyl group, or a substituted silyl group, R 8 And R 9 may combine to form a ring structure together with the nitrogen atom.
- Examples of the hydrocarbyl group having 1 to 6 carbon atoms of R 8 and R 9 include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, n- Examples thereof include alkyl groups such as pentyl group, neopentyl group, isopentyl group and n-hexyl group; cycloalkyl groups such as cyclohexyl group; phenyl groups and the like.
- the substituted hydrocarbyl group having 1 to 6 carbon atoms in R 8 and R 9 is at least one group selected from the group consisting of a group having a nitrogen atom, a group having an oxygen atom, and a group having a silicon atom.
- the substituted hydrocarbyl group which has as a substituent can be mentioned.
- Examples of the group having a nitrogen atom group as a substituent include dialkylaminoalkyl groups such as a dimethylaminoethyl group and a diethylaminoethyl group.
- Examples of the group having an oxygen atom group as a substituent include methoxymethyl Group, methoxyethyl group, ethoxymethyl group, alkoxyalkyl group such as ethoxyethyl group, and the like.
- a silicon atom group as a substituent a trialkylsilylalkyl group such as trimethylsilylmethyl group, etc. Can be mentioned.
- Examples of the substituted silyl group for R 8 and R 9 include trialkylsilyl groups such as a trimethylsilyl group, a triethylsilyl group, and a t-butyldimethylsilyl group.
- the group to which R 8 and R 9 are bonded is a divalent group having 1 to 12 carbon atoms which may have at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom and a silicon atom.
- Groups for example, an alkylene group such as a trimethylene group, a tetramethylene group, a pentamethylene group, or a hexamethylene group; an oxydialkylene group such as an oxydiethylene group or an oxydipropylene group; —CH 2 CH 2 —NH—CH 2 — And a nitrogen-containing group such as a group represented by —CH 2 CH 2 —N ⁇ CH—.
- the group to which R 8 and R 9 are bonded is preferably a nitrogen-containing group, a group represented by —CH 2 CH 2 —NH—CH 2 —, a group represented by —CH 2 CH 2 —N ⁇ CH—. Is more preferable.
- the hydrocarbyl group of R 8 and R 9 is preferably an alkyl group, more preferably an alkyl group having 1 to 4 carbon atoms, more preferably a methyl group, an ethyl group, an n-propyl group, or an n-butyl group, And the group n-butyl is particularly preferred.
- the substituted hydrocarbyl group for R 8 and R 9 is preferably an alkoxyalkyl group, more preferably an alkoxyalkyl group having 1 to 4 carbon atoms.
- the substituted silyl group for R 8 and R 9 is preferably a trialkylsilyl group, and more preferably a trimethylsilyl group.
- R 8 and R 9 are preferably an alkyl group, an alkoxyalkyl group, a substituted silyl group, or a nitrogen-containing group to which R 8 and R 9 are bonded, more preferably an alkyl group, still more preferably carbon. It is an alkyl group having 1 to 4 atoms, and more preferably a methyl group, an ethyl group, an n-propyl group, or an n-butyl group.
- acyclic amino group include dimethylamino group, diethylamino group, di (n-propyl) amino group, di (isopropyl) amino group, di (n-butyl) amino group, di (sec-butyl) amino group, di ( dialkylamino groups such as tert-butyl) amino group, di (neopentyl) amino group, ethylmethylamino group; di (methoxymethyl) amino group, di (methoxyethyl) amino group, di (ethoxymethyl) amino group, di ( And di (alkoxyalkyl) amino groups such as ethoxyethyl) amino group; and di (trialkylsilyl) amino groups such as di (trimethylsilyl) amino group and di (t-butyldimethylsilyl) amino group.
- Examples of the cyclic amino group include 1-pyrrolidinyl group, 1-piperidino group, 1-hexamethyleneimino group, 1-heptamethyleneimino group, 1-octamethyleneimino group, 1-decamethyleneimino group, 1-dodecamethyleneimino group. Mention may be made of 1-polymethyleneimino groups such as groups.
- Examples of the cyclic amino group include 1-imidazolyl group, 4,5-dihydro-1-imidazolyl group, 1-imidazolidinyl group, 1-piperazinyl group, morpholino group and the like.
- the group represented by the formula (IIIa) is preferably an acyclic amino group, more preferably a dialkylamino group, and still more preferably a carbon atom number of 1 to 1, from the viewpoint of economy and availability.
- Examples of the hydrocarbyl group of X 4 , X 5 and X 6 in the formula (III) include alkyl groups such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, and tert-butyl group. The group can be mentioned.
- examples of the substituted hydrocarbyl group include alkoxyalkyl groups such as a methoxymethyl group, an ethoxymethyl group, a methoxyethyl group, and an ethoxyethyl group.
- the hydrocarbyl group of X 4 , X 5 and X 6 is preferably an alkyl group, more preferably an alkyl group having 1 to 4 carbon atoms, and still more preferably a methyl group or an ethyl group.
- the substituted hydrocarbyl group of X 4 , X 5 and X 6 is preferably an alkoxyalkyl group, more preferably an alkoxyalkyl group having 1 to 4 carbon atoms.
- the hydrocarbyl group and substituted hydrocarbyl group of X 4 , X 5 and X 6 are preferably an alkyl group or an alkoxyalkyl group, more preferably an alkyl group having 1 to 4 carbon atoms or a carbon atom number of 1
- An alkoxyalkyl group having 4 to 4 more preferably an alkyl group having 1 to 4 carbon atoms, and still more preferably a methyl group or an ethyl group.
- At least one of X 4 , X 5 and X 6 in the formula (III) is a group represented by the formula (IIIa).
- two or more of X 4 , X 5 and X 6 are groups represented by formula (IIIa), more preferably two of X 4 , X 5 and X 6 are represented by formula (IIIa) It is a group represented.
- one of X 4 , X 5 and X 6 is an acyclic amino group represented by the formula (IIIa), and two are hydrocarbyl groups.
- examples of the compound that is a substituted hydrocarbyl group include (dialkylamino) dialkylvinylsilane, ⁇ di (trialkylsilyl) amino ⁇ dialkylvinylsilane, (dialkylamino) dialkoxyalkylvinylsilane, and the like.
- (Dialkylamino) dialkylvinylsilanes include (dimethylamino) dimethylvinylsilane, (ethylmethylamino) dimethylvinylsilane, (diethylamino) dimethylvinylsilane, (ethyl-n-propylamino) dimethylvinylsilane, (ethylisopropylamino) dimethylvinylsilane, ( Di (n-propyl) amino) dimethylvinylsilane, (diisopropylamino) dimethylvinylsilane, (n-butyl-n-propylamino) dimethylvinylsilane, (di (n-butyl) amino) dimethylvinylsilane, (dimethylamino) diethylvinylsilane, (Ethylmethylamino) diethylvinylsilane, (diethylamino) diethyl
- ⁇ Di (trialkylsilyl) amino ⁇ dialkylvinylsilane includes ⁇ di (trimethylsilyl) amino ⁇ dimethylvinylsilane, ⁇ di (t-butyldimethylsilyl) amino ⁇ dimethylvinylsilane, ⁇ di (trimethylsilyl) amino ⁇ diethylvinylsilane, ⁇ di And (t-butyldimethylsilyl) amino ⁇ diethylvinylsilane.
- (Dialkylamino) dialkoxyalkylvinylsilane includes (dimethylamino) dimethoxymethylvinylsilane, (dimethylamino) dimethoxyethylvinylsilane, (dimethylamino) diethoxymethylvinylsilane, (dimethylamino) diethoxyethylvinylsilane, (diethylamino) dimethoxymethyl Examples include vinylsilane, (diethylamino) dimethoxyethylvinylsilane, (diethylamino) diethoxymethylvinylsilane, (diethylamino) diethoxyethylvinylsilane, and the like.
- X 4 , X 5 and X 6 are acyclic amino groups represented by the formula (IIIa) and one is a hydrocarbyl group or a substituted hydrocarbyl group, bis (dialkylamino) alkylvinylsilane, bis ⁇ di (Trialkylsilyl) amino ⁇ alkylvinylsilane, bis (dialkylamino) alkoxyalkylvinylsilane, and the like.
- Bis (dialkylamino) alkylvinylsilanes include bis (dimethylamino) methylvinylsilane, bis (ethylmethylamino) methylvinylsilane, bis (diethylamino) methylvinylsilane, bis (ethyl-n-propylamino) methylvinylsilane, and bis (ethylisopropyl).
- Examples of bis ⁇ di (trialkylsilyl) amino ⁇ alkylvinylsilane include bis ⁇ di (trimethylsilyl) amino ⁇ methylvinylsilane, bis ⁇ di (t-butyldimethylsilyl) amino ⁇ methylvinylsilane, bis ⁇ di (trimethylsilyl) amino ⁇ ethyl vinylsilane, and bis ⁇ di (t-butyldimethylsilyl) amino ⁇ ethyl vinyl silane can be exemplified.
- Bis (dialkylamino) alkoxyalkylvinylsilanes include bis (dimethylamino) methoxymethylvinylsilane, bis (dimethylamino) methoxyethylvinylsilane, bis (dimethylamino) ethoxymethylvinylsilane, bis (dimethylamino) ethoxyethylvinylsilane, and bis (diethylamino).
- Methoxymethylvinylsilane bis (diethylamino) methoxyethylvinylsilane, bis (diethylamino) ethoxymethylvinylsilane, bis (diethylamino) ethoxyethylvinylsilane, and the like.
- Examples of the compound in which three of X 4 , X 5 and X 6 are acyclic amino groups represented by the formula (IIIa) include tri (dialkylamino) vinylsilane.
- tri (dimethylamino) vinylsilane, tri (ethylmethylamino) vinylsilane, tri (diethylamino) vinylsilane, tri (ethylpropylamino) vinylsilane, tri (dipropylamino) vinylsilane, tri (butylpropylamino) vinylsilane Can do.
- Compounds in which two of X 4 , X 5 and X 6 are cyclic amino groups represented by the formula (IIIa) and one is a hydrocarbyl group or a substituted hydrocarbyl group include bis (morpholino) methylvinylsilane, bis (piperidino) methyl Examples thereof include vinyl silane, bis (4,5-dihydroimidazolyl) methyl vinyl silane, and bis (hexamethyleneimino) methyl vinyl silane.
- X 4 , X 5 and X 6 are groups represented by the formula (IIIa)
- X 4 , X 5 and X 6 are acyclic
- bis (diethylamino) methylvinylsilane and bis (di (n-butyl) amino) methylvinylsilane are preferable from the viewpoint of availability of the compound.
- polymerization may be performed by combining the conjugated diene and the vinyl compound represented by the formula (III) with another monomer.
- Other monomers include aromatic vinyl, vinyl nitrile, unsaturated carboxylic acid ester, and the like.
- aromatic vinyl include styrene, ⁇ -methylstyrene, vinyl toluene, vinyl naphthalene, divinyl benzene, trivinyl benzene, and divinyl naphthalene.
- vinyl nitrile include acrylonitrile
- examples of the unsaturated carboxylic acid ester include methyl acrylate, ethyl acrylate, methyl methacrylate, and ethyl methacrylate.
- aromatic vinyl is preferable, and styrene is more preferable.
- Polymerization in (Step A) is an agent that adjusts the vinyl bond amount of the conjugated diene unit, and an agent that adjusts the distribution of constituent units based on monomers other than the conjugated diene unit and the conjugated diene in the conjugated diene polymer chain. (Hereinafter collectively referred to as “regulator”) or the like.
- regulatory include ether compounds, tertiary amines, and phosphine compounds.
- the ether compound examples include cyclic ethers such as tetrahydrofuran, tetrahydropyran, and 1,4-dioxane; aliphatic monoethers such as diethyl ether and dibutyl ether; ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, and diethylene glycol diethyl ether. And aliphatic diethers such as diethylene glycol dibutyl ether; aromatic ethers such as diphenyl ether and anisole.
- cyclic ethers such as tetrahydrofuran, tetrahydropyran, and 1,4-dioxane
- aliphatic monoethers such as diethyl ether and dibutyl ether
- ethylene glycol dimethyl ether ethylene glycol diethyl ether
- ethylene glycol dibutyl ether ethylene glycol dibutyl ether
- Examples of the tertiary amine include triethylamine, tripropylamine, tributylamine, N, N, N ′, N′-tetramethylethylenediamine, N, N-diethylaniline, pyridine, quinoline and the like.
- Examples of the phosphine compound include trimethylphosphine, triethylphosphine, triphenylphosphine, and the like. These may be used alone or in combination of two or more.
- the polymerization temperature in (Step A) is usually 25 to 100 ° C., preferably 35 to 90 ° C. More preferably, it is 50 to 80 ° C.
- the polymerization time is usually 10 minutes to 5 hours.
- the amount of the compound represented by the formula (II) to be brought into contact with the polymer prepared in Step A is usually 0.1 to 3 mol per 1 mol of the alkali metal derived from the organic alkali metal catalyst. Preferably, it is 0.5 to 2 mol, and more preferably 0.7 to 1.5 mol.
- the temperature at which the polymer prepared in Step A is brought into contact with the compound represented by formula (II) is usually 25 to 100 ° C., preferably 35 to 90 ° C. More preferably, it is 50 to 80 ° C.
- the contact time is usually 60 seconds to 5 hours, preferably 5 minutes to 1 hour, more preferably 15 minutes to 1 hour.
- a coupling agent may be added to the hydrocarbon solution of the conjugated diene polymer in the polymerization termination from the start of polymerization of the monomer using an alkali metal catalyst, if necessary.
- the coupling agent include compounds represented by the following formula (IV).
- R 10 a ML 4-a (IV) (Wherein R 10 represents an alkyl group, an alkenyl group, a cycloalkenyl group or an aromatic residue, M represents a silicon atom or a tin atom, L represents a halogen atom or a hydrocarbyloxy group, and a represents 0-2. Represents an integer.)
- the aromatic residue represents a monovalent group obtained by removing hydrogen bonded to an aromatic ring from an aromatic hydrocarbon.
- silicon tetrachloride methyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, tin tetrachloride, methyltrichlorotin, dimethyldichlorotin, trimethylchlorotin, tetramethoxysilane, methyl Examples include trimethoxysilane, dimethoxydimethylsilane, methyltriethoxysilane, ethyltrimethoxysilane, dimethoxydiethylsilane, diethoxydimethylsilane, tetraethoxysilane, ethyltriethoxysilane, and diethoxydiethylsilane.
- the addition amount of the coupling agent is preferably 0.03 mol or more, more preferably 0.05 mol or more, from the viewpoint of processability of the conjugated diene polymer per 1 mol of alkali metal derived from the alkali metal catalyst. is there. Moreover, from a viewpoint of low fuel consumption, Preferably it is 0.4 mol or less, More preferably, it is 0.3 mol or less.
- Conjugated diene polymers can be collected by known recovery methods, for example, (1) a method of adding a coagulant to a hydrocarbon solution of a conjugated diene polymer, and (2) adding steam to a hydrocarbon solution of a conjugated diene polymer.
- the conjugated diene polymer can be recovered from the hydrocarbon solution.
- the recovered conjugated diene polymer may be dried by a known dryer such as a band dryer or an extrusion dryer.
- the treatment may be carried out in polymer alone state may be performed in a state of a composition as described below.
- the method for hydrolyzing include known methods such as the method according to steam stripping.
- the above-described processing, the X 1, X 2 and X 3 of the formula (I) may be a hydroxyl group, fuel economy can be further improved in a balanced wet grip performance and abrasion resistance.
- the conjugated diene polymer can be used in the rubber composition of the present invention as a rubber component, and is preferably used in combination with other rubber components and additives.
- Examples of other rubber components include conventional styrene-butadiene copolymer rubber, polybutadiene rubber (BR), butadiene-isoprene copolymer rubber, and butyl rubber.
- natural rubber NR
- ethylene-propylene copolymer ethylene-octene copolymer and the like can also be mentioned. Two or more of these rubber components may be used in combination.
- it is preferable to use NR and / or BR and it is more preferable to use both components of NR and BR from the point that low-fuel-consumption property, wet grip performance, and abrasion resistance can be improved with good balance.
- the content of the conjugated diene polymer in 100% by mass of the rubber component is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 30% by mass or more, and particularly preferably 50% by mass or more.
- the content of the conjugated diene polymer is preferably 90% by mass or less, more preferably 80% by mass or less, and still more preferably 70% by mass or less.
- the NR is not particularly limited.
- SIR20, RSS # 3, TSR20, deproteinized natural rubber (DPNR), high-purity natural rubber (HPNR), etc. which are common in the tire industry can be used.
- the content of NR in 100% by mass of the rubber component is preferably 5% by mass or more, more preferably 10% by mass or more, and further preferably 15% by mass or more. If it is less than 5% by mass, the wear resistance tends to decrease.
- the NR content is preferably 70% by mass or less, more preferably 60% by mass or less. If it exceeds 70% by mass, the wet grip performance tends to decrease.
- BR for example, BR1220 manufactured by Nippon Zeon Co., Ltd., BR130B manufactured by Ube Industries, Ltd., BR150B having high cis content such as BR150B, VCR412 manufactured by Ube Industries, Ltd., VCR617, etc.
- BR containing syndiotactic polybutadiene crystals can be used.
- the content of BR in 100% by mass of the rubber component is preferably 5% by mass or more, more preferably 10% by mass or more, and further preferably 15% by mass or more. If it is less than 5% by mass, the wear resistance tends to decrease.
- the BR content is preferably 60% by mass or less, more preferably 50% by mass or less. If it exceeds 60% by mass, the wet grip performance tends to decrease.
- the total content of NR and BR in 100% by mass of the rubber component is preferably 10% by mass or more, more preferably 20% by mass or more, and further preferably 30% by mass or more. If it is less than 10% by mass, the wear resistance tends to decrease.
- the total content is preferably 70% by mass or less, more preferably 50% by mass or less. If it exceeds 70% by mass, the wet grip performance tends to decrease.
- the rubber composition of the present invention is characterized by compounding silica as a reinforcing agent.
- the compounding amount (content) of the silica is preferably 5 to 150 parts by mass, more preferably 10 to 100 parts by mass with respect to 100 parts by mass of the rubber component.
- Silica may be used alone or in combination of two or more.
- the nitrogen adsorption specific surface area (N 2 SA) of silica is preferably 40 ⁇ 400m 2 / g, and more preferably 60 ⁇ 360m 2 / g.
- Silica having a nitrogen adsorption specific surface area of less than 40 m 2 / g has a small reinforcing effect and tends to have low wear resistance, and silica having a nitrogen adsorption specific surface area of more than 400 m 2 / g has poor dispersibility, increases hysteresis loss, and lowers fuel efficiency.
- the nitrogen adsorption specific surface area of silica is a value measured by the BET method according to ASTM D3037-81.
- the content of silica in a total of 100% by mass of silica and carbon black is preferably 60% by mass or more, more preferably 85% by mass or more, preferably 98% by mass or less, more preferably 95% by mass or less. . If it is in the said range, low-fuel-consumption property, wet-grip performance, and abrasion resistance can be improved with a high dimension in a well-balanced manner.
- a silane coupling agent may be used in combination with the silica.
- silane coupling agents include bis (3-triethoxysilylpropyl) tetrasulfide, bis (3-triethoxysilylpropyl) trisulfide, bis (3-triethoxysilylpropyl) disulfide, and bis (2-triethoxy).
- Silylethyl) tetrasulfide bis (3-trimethoxysilylpropyl) tetrasulfide, bis (2-trimethoxysilylethyl) tetrasulfide, 3-mercaptopropyltrimethoxysilane, 3-mercaptopropyltriethoxysilane, 2-mercaptoethyl Trimethoxysilane, 2-mercaptoethyltriethoxysilane, 3-trimethoxysilylpropyl-N, N-dimethylthiocarbamoyl tetrasulfide, 3-triethoxysilylpropyl-N, N-dimethylthiocarb Moyl tetrasulfide, 2-triethoxysilylethyl-N, N-dimethylthiocarbamoyl tetrasulfide, 3-trimethoxysilylpropylbenzothiazole tetrasulfide
- silane coupling agents may be used alone or in combination of two or more.
- the compounding amount of the silane coupling agent is preferably 1 part by mass or more and more preferably 2 parts by mass or more with respect to 100 parts by mass of the silica. If the compounding amount of the silane coupling agent is less than 1 part by mass, the viscosity of the unvulcanized rubber composition tends to be high and the processability tends to be poor. Moreover, it is preferable that it is 20 mass parts or less with respect to 100 mass parts of said silica, and, as for the compounding quantity of a silane coupling agent, it is more preferable that it is 15 mass parts or less. When the compounding quantity of a silane coupling agent exceeds 20 mass parts, the compounding effect of the silane coupling agent as the compounding quantity will not be acquired, and there exists a tendency for cost to become high.
- additives can be used, such as sulfur vulcanizing agents; thiazole vulcanization accelerators, thiuram vulcanization accelerators, sulfenamide vulcanization accelerators, guanidine vulcanization accelerators.
- Vulcanization accelerators such as stearic acid and zinc oxide; organic peroxides; fillers such as carbon black, calcium carbonate, talc, alumina, clay, aluminum hydroxide, mica; silane coupling Agents; processing aids such as extender oils and lubricants; anti-aging agents can be exemplified.
- Examples of the carbon black include furnace black (furness carbon black) such as SAF, ISAF, HAF, MAF, FEF, SRF, GPF, APF, FF, CF, SCF and ECF; acetylene black (acetylene carbon black); FT and Examples thereof include thermal black (thermal carbon black) such as MT; channel black (channel carbon black) such as EPC, MPC and CC; graphite. These can be used alone or in combination of two or more.
- the content of carbon black is preferably 1 part by mass or more, more preferably 3 parts per 100 parts by mass of the rubber component from the viewpoint that fuel economy, wet grip performance and wear resistance can be improved in a high-dimensional and well-balanced manner. It is at least part by mass, preferably at most 30 parts by mass, more preferably at most 10 parts by mass.
- Nitrogen adsorption specific surface area (N 2 SA) of carbon black is usually 5 ⁇ 200m 2 / g, the lower limit is preferably 50 m 2 / g, the upper limit is 150 meters 2 / g.
- Carbon black has a dibutyl phthalate (DBP) absorption of usually 5 to 300 ml / 100 g, preferably a lower limit of 80 ml / 100 g and an upper limit of 180 ml / 100 g. If the N 2 SA or DBP absorption amount of the carbon black is less than the lower limit of the above range, the reinforcing effect tends to be small and the wear resistance tends to decrease.
- DBP dibutyl phthalate
- the extending oil examples include aromatic mineral oil (viscosity specific gravity constant (VGC value) 0.900 to 1.049), naphthenic mineral oil (VGC value 0.850 to 0.899), paraffinic mineral oil (VGC value 0.790 to 0.849), and the like.
- the polycyclic aromatic content of the extender oil is preferably less than 3% by mass, more preferably less than 1% by mass.
- the polycyclic aromatic content is measured according to the British Petroleum Institute 346/92 method.
- the aromatic compound content (CA) of the extending oil is preferably 20% by mass or more. These extending oils may be used in combination of two or more.
- vulcanization accelerator examples include thiazole vulcanization accelerators such as 2-mercaptobenzothiazole, dibenzothiazyl disulfide, and N-cyclohexyl-2-benzothiazylsulfenamide; tetramethylthiuram monosulfide, tetramethylthiuram Thiuram vulcanization accelerators such as disulfides; N-cyclohexyl-2-benzothiazole sulfenamide, Nt-butyl-2-benzothiazole sulfenamide, N-oxyethylene-2-benzothiazole sulfenamide, N -Sulfenamide vulcanization accelerators such as oxyethylene-2-benzothiazole sulfenamide, N, N'-diisopropyl-2-benzothiazole sulfenamide; diphenylguanidine, diortolylguanidine, orthotolylbiguanidine, etc. No Mention may
- a known method for example, using a known mixer such as a roll or a banbury for each component.
- a kneading method can be used.
- the kneading temperature is usually 50 to 200 ° C., preferably 80 to 190 ° C.
- the kneading time is usually 30 seconds. -30 minutes, and preferably 1-30 minutes.
- the kneading temperature is usually 100 ° C. or lower, preferably room temperature to 80 ° C.
- a composition containing a vulcanizing agent and a vulcanization accelerator is usually used after vulcanization treatment such as press vulcanization.
- the vulcanization temperature is usually 120 to 200 ° C, preferably 140 to 180 ° C.
- the rubber composition of the present invention is excellent in the balance of low fuel consumption, wet grip performance and wear resistance, and can achieve a remarkable improvement effect of these performances.
- the rubber composition of the present invention can be suitably used for each member of a tire, and can be particularly suitably used for a tread.
- the pneumatic tire of the present invention is produced by a usual method using the rubber composition. That is, a rubber composition containing various additives as necessary is extruded in accordance with the shape of the tread of the tire at an unvulcanized stage, molded by a normal method on a tire molding machine, etc. The tire members are bonded together to form an unvulcanized tire. This unvulcanized tire can be heated and pressurized in a vulcanizer to produce the pneumatic tire of the present invention.
- the pneumatic tire of the present invention can be suitably used as a tire for passenger cars and a tire for trucks and buses (heavy load tire).
- Example 1 to 4 and Comparative Examples 2 to 4 used Comparative Example 1 as a reference comparative example
- Example 5 used Comparative Example 5 as a reference comparative example.
- Vinyl bond amount (unit: mol%) The amount of vinyl bonds in the polymer was determined from the absorption intensity near 910 cm ⁇ 1, which is the absorption peak of the vinyl group, by infrared spectroscopy.
- Styrene unit content (unit: mass%) According JIS K6383 (1995), was determined styrene unit content of the polymer from the refractive index.
- tan ⁇ A strip-shaped test piece having a width of 1 mm or 2 mm and a length of 40 mm was punched out of the sheet-like vulcanized rubber composition and subjected to the test. Using a spectrometer manufactured by Ueshima Seisakusho, tan ⁇ was measured at a dynamic strain amplitude of 1%, a frequency of 10 Hz, and a temperature of 50 ° C. The reciprocal value of tan ⁇ was expressed as an index with the reference comparative example being 100. The larger the value, the lower the rolling resistance and the lower the fuel consumption.
- Rolling resistance Using a rolling resistance tester, measure the rolling resistance when the test tire was run at a rim (15 ⁇ 6JJ), internal pressure (230 kPa), load (3.43 kN), speed (80 km / h). Indicated as an index when the reference comparative example is 100. A larger index is better (low fuel consumption).
- LAT abrasion test Using a LAT tester (Laboratory Abrasion and Skid Tester), the volume loss of each vulcanized rubber composition was measured under the conditions of a load of 50 N, a speed of 20 km / h, and a slip angle of 5 °.
- the numerical values (LAT index) in Tables 2 and 3 are relative values when the volume loss amount of the reference comparative example is 100. The larger the value, the better the wear resistance.
- Production Example 1 (Synthesis of Polymer 1) 5. The inside of a stainless steel polymerization reactor having an internal volume of 20 liters was washed, dried, and replaced with dry nitrogen, and hexane (specific gravity 0.68 g / cm 3 ) 10.2 kg, 1,3-butadiene 547 g, styrene 173 g, tetrahydrofuran 6. 1 ml and ethylene glycol diethyl ether 5.0 ml were charged into the polymerization reactor.
- the obtained polymer solution was stirred at a stirring speed of 130 rpm, and 11.1 mmol of 3-diethylaminopropyltriethoxysilane was added and stirred for 15 minutes.
- 20 ml of hexane solution containing 0.54 ml of methanol was added to the polymer solution, and the polymer solution was further stirred for 5 minutes.
- the stirring speed was 130 rpm
- the temperature in the polymerization reactor was 65 ° C.
- the monomer was continuously fed into the polymerization reactor.
- the amount of 1,3-butadiene supplied was 205 g
- the amount of styrene supplied was 65 g.
- 2.8 mmol of bis (diethylamino) methylvinylsilane as a cyclohexane solution was added into the polymerization reactor under a stirring speed of 130 rpm and a polymerization reactor internal temperature of 65 ° C. and stirred for 30 minutes. .
- 20 ml of a hexane solution containing 0.14 ml of methanol was put into the polymerization reactor, and the polymer solution was stirred for 5 minutes.
- the stirring speed was 130 rpm
- the temperature in the polymerization reactor was 65 ° C.
- 1,3-butadiene and styrene were copolymerized for 3 hours while continuously supplying the monomer into the polymerization reactor.
- the amount of 1,3-butadiene supplied in the entire polymerization was 821 g
- the amount of styrene supplied was 259 g.
- the obtained polymer solution was stirred at a stirring speed of 130 rpm, and 11.1 mmol of 3-diethylaminopropyltriethoxysilane was added and stirred for 15 minutes. 20 ml of hexane solution containing 0.54 ml of methanol was added to the polymer solution, and the polymer solution was further stirred for 5 minutes.
- the obtained polymer solution was stirred at a stirring speed of 130 rpm, and 11.1 mmol of 3-diethylaminopropyltriethoxysilane was added and stirred for 15 minutes.
- 20 ml of hexane solution containing 0.54 ml of methanol was added to the polymer solution, and the polymer solution was further stirred for 5 minutes.
- the evaluation results of the polymer 6 are shown in Table 1.
- the content of the structural unit represented by the formula (I) in the polymer calculated from the input amount and the supply amount of the raw material into the polymerization reactor is 0.006 mmol / g polymer per polymer unit mass. there were.
- Natural rubber RSS # 3 Butadiene rubber: Ubepol BR150B manufactured by Ube Industries, Ltd.
- Polymers 1 to 6 Production Examples 1 to 6 above Silica: Ultrasil VN3-G manufactured by Degussa (N 2 SA: 175 m 2 / g) Silane coupling agent: Si69 (bis (3-triethoxysilylpropyl) tetrasulfide) manufactured by Degussa Carbon black: Dia Black N339 manufactured by Mitsubishi Chemical Corporation (N 2 SA: 96 m 2 / g, DBP absorption: 124 ml / 100 g) Oil: X-140 manufactured by Japan Energy Co., Ltd.
- Anti-aging agent Antigen 3C manufactured by Sumitomo Chemical Co., Ltd.
- Stearic acid Beads manufactured by NOF Corporation
- Zinc oxide Zinc flower No. 1 manufactured by Mitsui Kinzoku Mining Co., Ltd.
- Wax Sunnock N manufactured by Ouchi Shinsei Chemical Co., Ltd.
- Sulfur Powder sulfur vulcanization accelerator manufactured by Tsurumi Chemical Industry Co., Ltd. 1: Soxinol CZ manufactured by Sumitomo Chemical Co., Ltd.
- Vulcanization accelerator 2 Soxinol D manufactured by Sumitomo Chemical Co., Ltd.
- Examples 1 to 5 and Comparative Examples 1 to 5 In accordance with the contents shown in Tables 2 and 3, materials other than sulfur and a vulcanization accelerator were kneaded for 5 minutes at 150 ° C. using a 1.7 L Banbury mixer manufactured by Kobe Steel, Ltd., and mixed. A kneaded paste was obtained. Next, sulfur and a vulcanization accelerator were added to the obtained kneaded product, and kneaded for 5 minutes under the condition of 80 ° C. using an open roll to obtain an unvulcanized rubber composition. The obtained unvulcanized rubber composition was press vulcanized with a 0.5 mm thick mold at 170 ° C. for 20 minutes to obtain a vulcanized rubber composition.
- the obtained unvulcanized rubber composition is molded into a tread shape and bonded together with other tire members on a tire molding machine to form an unvulcanized tire, which is vulcanized at 170 ° C. for 12 minutes, and tested.
- Tires (size: 195 / 65R15) were manufactured.
- the obtained vulcanized rubber composition and test tire were used for evaluation by the above test method.
- the test results are shown in Tables 2 and 3.
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- General Chemical & Material Sciences (AREA)
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Abstract
Description
該非環状アミノ基としては、ジメチルアミノ基、ジエチルアミノ基、ジ(n-プロピル)アミノ基、ジ(イソプロピル)アミノ基、ジ(n-ブチル)アミノ基、ジ(sec-ブチル)アミノ基、ジ(tert-ブチル)アミノ基、ジ(ネオペンチル)アミノ基、エチルメチルアミノ基などのジアルキルアミノ基;ジ(メトキシメチル)アミノ基、ジ(メトキシエチル)アミノ基、ジ(エトキシメチル)アミノ基、ジ(エトキシエチル)アミノ基などのジ(アルコキシアルキル)アミノ基;ジ(トリメチルシリル)アミノ基、ジ(t-ブチルジメチルシリル)アミノ基などのジ(トリアルキルシリル)アミノ基などを挙げることができる。
該非環状アミノ基としては、ジメチルアミノ基、ジエチルアミノ基、ジ(n-プロピル)アミノ基、ジ(イソプロピル)アミノ基、ジ(n-ブチル)アミノ基、ジ(sec-ブチル)アミノ基、ジ(tert-ブチル)アミノ基、ジ(ネオペンチル)アミノ基、エチルメチルアミノ基などのジアルキルアミノ基;ジ(メトキシメチル)アミノ基、ジ(メトキシエチル)アミノ基、ジ(エトキシメチル)アミノ基、ジ(エトキシエチル)アミノ基などのジ(アルコキシアルキル)アミノ基;ジ(トリメチルシリル)アミノ基、ジ(t-ブチルジメチルシリル)アミノ基などのジ(トリアルキルシリル)アミノ基などを挙げることができる。また、ジ(エポキシ)アミノ基、ジ(テトラヒドロフラニル)アミノ基などのジ(アルキレンオキシド)アミノ基;ジ(グリシジル)アミノ基、ジ(テトラヒドロフルフリル)アミノ基などのジ(アルキレンオキシドアルキル)アミノ基を挙げることができる。更には、エチリデンアミノ基、1-メチルプロピリデンアミノ基、1,3-ジメチルブチリデンアミノ基、1-メチルエチリデンアミノ基、4-N,N-ジメチルアミノベンジリデンアミノ基なども挙げることができる。
なお、本明細書において、ジ(アルキレンオキシド)アミノ基は、窒素原子に結合している2つの水素原子が2つのアルキレンオキシド基に置換されたアミノ基を表し、ジ(アルキレンオキシドアルキル)アミノ基は、窒素原子に結合している2つの水素原子が2つのアルキレンオキシドアルキル基に置換されたアミノ基を表す。
[3-(ジメチルアミノ)プロピル]トリメトキシシラン、
[3-(ジエチルアミノ)プロピル]トリメトキシシラン、
[3-(エチルメチルアミノ)プロピル]トリメトキシシラン、
[3-(ジメチルアミノ)プロピル]トリエトキシシラン、
[3-(ジエチルアミノ)プロピル]トリエトキシシラン、
[3-(エチルメチルアミノ)プロピル]トリエトキシシランなどの
[3-(ジアルキルアミノ)プロピル]トリアルコキシシラン;
[3-(ジエチルアミノ)プロピル]メチルジメトキシシラン、
[3-(エチルメチルアミノ)プロピル]メチルジメトキシシラン、
[3-(ジメチルアミノ)プロピル]エチルジメトキシシラン、
[3-(ジエチルアミノ)プロピル]エチルジメトキシシラン、
[3-(エチルメチルアミノ)プロピル]エチルジメトキシシラン、
[3-(ジメチルアミノ)プロピル]メチルジエトキシシラン、
[3-(ジエチルアミノ)プロピル]メチルジエトキシシラン、
[3-(エチルメチルアミノ)プロピル]メチルジエトキシシラン、
[3-(ジメチルアミノ)プロピル]エチルジエトキシシラン、
[3-(ジエチルアミノ)プロピル]エチルジエトキシシラン、
[3-(エチルメチルアミノ)プロピル]エチルジエトキシシランなどの
[3-(ジアルキルアミノ)プロピル]アルキルジアルコキシシラン;
[3-(ジエチルアミノ)プロピル]ジメチルメトキシシラン、
[3-(ジメチルアミノ)プロピル]ジエチルメトキシシラン、
[3-(ジエチルアミノ)プロピル]ジエチルメトキシシラン、
[3-(ジメチルアミノ)プロピル]ジメチルエトキシシラン、
[3-(ジエチルアミノ)プロピル]ジメチルエトキシシラン、
[3-(ジメチルアミノ)プロピル]ジエチルエトキシシラン、
[3-(ジエチルアミノ)プロピル]ジエチルエトキシシランなどの
[3-(ジアルキルアミノ)プロピル]ジアルキルアルコキシシランを挙げることができる。
{3-[ジ(メトキシメチル)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(メトキシメチル)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}トリエトキシシランなどの
{3-[ジ(アルコキシアルキル)アミノ]プロピル}トリアルコキシシラン;
{3-[ジ(エトキシメチル)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(メトキシメチル)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(メトキシメチル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(メトキシメチル)アミノ]プロピル}エチルジエトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}エチルジエトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}エチルジエトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}エチルジエトキシシランなどの
{3-[ジ(アルコキシアルキル)アミノ]プロピル}アルキルジアルコキシシラン;
{3-[ジ(エトキシメチル)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(メトキシメチル)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(メトキシメチル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(メトキシメチル)アミノ]プロピル}ジエチルエトキシシラン、
{3-[ジ(エトキシメチル)アミノ]プロピル}ジエチルエトキシシラン、
{3-[ジ(メトキシエチル)アミノ]プロピル}ジエチルエトキシシラン、
{3-[ジ(エトキシエチル)アミノ]プロピル}ジエチルエトキシシランなどの
{3-[ジ(アルコキシアルキル)アミノ]プロピル}ジアルキルアルコキシシランを挙げることができる。
{3-[ジ(エポキシ)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}エチルジエトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(エポキシ)アミノ]プロピル}ジエチルエトキシシランなどの
式(IIa)がジ(エポキシ)アミノ基である化合物;
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}エチルジエトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(テトラヒドロフラニル)アミノ]プロピル}ジエチルエトキシシランなどの
式(IIa)がジ(テトラヒドロフラニル)アミノ基である化合物を挙げることができる。
{3-[ジ(グリシジル)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}エチルジエトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(グリシジル)アミノ]プロピル}ジエチルエトキシシランなどの
式(IIa)がジ(グリシジル)アミノ基である化合物;
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}エチルジメトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}エチルジエトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}ジエチルメトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(テトラヒドロフルフリル)アミノ]プロピル}ジエチルエトキシシランなどの
式(IIa)がジ(テトラヒドロフルフリル)アミノ基である化合物を挙げることができる。
{3-[ジ(トリメチルシリル)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(t-ブチルジメチルシリル)アミノ]プロピル}トリメトキシシラン、
{3-[ジ(トリメチルシリル)アミノ]プロピル}トリエトキシシラン、
{3-[ジ(t-ブチルジメチルシリル)アミノ]プロピル}トリエトキシシランなどの
{3-[ジ(トリアルキルシリル)アミノ]プロピル}トリアルコキシシラン;
{3-[ジ(t-ブチルジメチルシリル)アミノ]プロピル}メチルジメトキシシラン、
{3-[ジ(トリメチルシリル)アミノ]プロピル}メチルジエトキシシラン、
{3-[ジ(t-ブチルジメチルシリル)アミノ]プロピル}メチルジエトキシシランなどの
{3-[ジ(トリアルキルシリル)アミノ]プロピル}アルキルジアルコキシシラン;
{3-[ジ(t-ブチルジメチルシリル)アミノ]プロピル}ジメチルメトキシシラン、
{3-[ジ(トリメチルシリル)アミノ]プロピル}ジメチルエトキシシラン、
{3-[ジ(t-ブチルジメチルシリル)アミノ]プロピル}ジメチルエトキシシランなどの
{3-[ジ(トリアルキルシリル)アミノ]プロピル}ジアルキルアルコキシシランを挙げることができる。
[3-(ジメチルアミノ)プロピル]トリメトキシシラン、
[3-(ジエチルアミノ)プロピル]トリメトキシシラン、
[3-(ジメチルアミノ)プロピル]トリエトキシシラン、
[3-(ジエチルアミノ)プロピル]トリエトキシシラン
がより好ましい。
3-(1-ヘキサメチレンイミノ)プロピルトリメトキシシラン、
3-(1-ヘキサメチレンイミノ)プロピルトリエトキシシラン、
3-(1-ヘキサメチレンイミノ)プロピルメチルジメトキシシラン、
3-(1-ヘキサメチレンイミノ)プロピルエチルジメトキシシラン、
3-(1-ヘキサメチレンイミノ)プロピルメチルジエトキシシラン、
3-(1-ヘキサメチレンイミノ)プロピルエチルジエトキシシランなどを挙げることができる。
N-(3-トリメトキシシリルプロピル)イミダゾール、
N-(3-トリエトキシシリルプロピル)イミダゾールなどを挙げることができる。
N-(3-トリメトキシシリルプロピル)-4,5-ジヒドロイミダゾール、
N-(3-トリエトキシシリルプロピル)-4,5-ジヒドロイミダゾールなどを挙げることができる。
3-(1-ピペラジニル)プロピルトリメトキシシラン、
3-(1-ピペラジニル)プロピルトリエトキシシラン、
3-(1-ピペラジニル)プロピルメチルジメトキシシラン、
3-(1-ピペラジニル)プロピルエチルジメトキシシラン、
3-(1-ピペラジニル)プロピルメチルジエトキシシラン、
3-(1-ピペラジニル)プロピルエチルジエトキシシランなどを挙げることができる。
3-モルホリノプロピルトリメトキシシラン、
3-モルホリノプロピルトリエトキシシラン、
3-モルホリノプロピルメチルジメトキシシラン、
3-モルホリノプロピルエチルジメトキシシラン、
3-モルホリノプロピルメチルジエトキシシラン、
3-モルホリノプロピルエチルジエトキシシランなどを挙げることができる。
N-(3-トリメトキシシリルプロピル)イミダゾール、
N-(3-トリエトキシシリルプロピル)イミダゾール、
N-(3-トリメトキシシリルプロピル)-4,5-ジヒドロイミダゾール、
N-(3-トリエトキシシリルプロピル)-4,5-ジヒドロイミダゾール
がより好ましい。
(工程A):炭化水素溶媒中で、アルカリ金属触媒により、共役ジエンと下式(III)で表されるビニル化合物とを含む単量体を重合させ、共役ジエンに基づく単量体単位と下式(III)で表されるビニル化合物に基づく単量体単位とを有する重合体鎖の少なくとも一端に、該触媒由来のアルカリ金属を有する重合体を得る工程。
(工程B):工程Aで得られた重合体と下式(II)で表される化合物とを反応させる工程。
該非環状アミノ基としては、ジメチルアミノ基、ジエチルアミノ基、ジ(n-プロピル)アミノ基、ジ(イソプロピル)アミノ基、ジ(n-ブチル)アミノ基、ジ(sec-ブチル)アミノ基、ジ(tert-ブチル)アミノ基、ジ(ネオペンチル)アミノ基、エチルメチルアミノ基などのジアルキルアミノ基;ジ(メトキシメチル)アミノ基、ジ(メトキシエチル)アミノ基、ジ(エトキシメチル)アミノ基、ジ(エトキシエチル)アミノ基などのジ(アルコキシアルキル)アミノ基;ジ(トリメチルシリル)アミノ基、ジ(t-ブチルジメチルシリル)アミノ基などのジ(トリアルキルシリル)アミノ基などを挙げることができる。
(ジアルキルアミノ)ジアルキルビニルシランとしては、(ジメチルアミノ)ジメチルビニルシラン、(エチルメチルアミノ)ジメチルビニルシラン、(ジエチルアミノ)ジメチルビニルシラン、(エチル-n-プロピルアミノ)ジメチルビニルシラン、(エチルイソプロピルアミノ)ジメチルビニルシラン、(ジ(n-プロピル)アミノ)ジメチルビニルシラン、(ジイソプロピルアミノ)ジメチルビニルシラン、(n-ブチル-n-プロピルアミノ)ジメチルビニルシラン、(ジ(n-ブチル)アミノ)ジメチルビニルシラン、(ジメチルアミノ)ジエチルビニルシラン、(エチルメチルアミノ)ジエチルビニルシラン、(ジエチルアミノ)ジエチルビニルシラン、(エチル-n-プロピルアミノ)ジエチルビニルシラン、(エチルイソプロピルアミノ)ジエチルビニルシラン、(ジ(n-プロピル)アミノ)ジエチルビニルシラン、(ジイソプロピルアミノ)ジエチルビニルシラン、(n-ブチル-n-プロピルアミノ)ジエチルビニルシラン、(ジ(n-ブチル)アミノ)ジエチルビニルシラン、(ジメチルアミノ)ジプロピルビニルシラン、(エチルメチルアミノ)ジプロピルビニルシラン、(ジエチルアミノ)ジプロピルビニルシラン、(エチル-n-プロピルアミノ)ジプロピルビニルシラン、(エチルイソプロピルアミノ)ジプロピルビニルシラン、(ジ(n-プロピル)アミノ)ジプロピルビニルシラン、(ジイソプロピルアミノ)ジプロピルビニルシラン、(n-ブチル-n-プロピルアミノ)ジプロピルビニルシラン、(ジ(n-ブチル)アミノ)ジプロピルビニルシラン、(ジメチルアミノ)ジブチルビニルシラン、(エチルメチルアミノ)ジブチルビニルシラン、(ジエチルアミノ)ジブチルビニルシラン、(エチル-n-プロピルアミノ)ジブチルビニルシラン、(エチルイソプロピルアミノ)ジブチルビニルシラン、(ジ(n-プロピル)アミノ)ジブチルビニルシラン、(ジイソプロピルアミノ)ジブチルビニルシラン、(n-ブチル-n-プロピルアミノ)ジブチルビニルシラン、(ジ(n-ブチル)アミノ)ジブチルビニルシランなどを挙げることができる。
{ジ(トリアルキルシリル)アミノ}ジアルキルビニルシランとしては、{ジ(トリメチルシリル)アミノ}ジメチルビニルシラン、{ジ(t-ブチルジメチルシリル)アミノ}ジメチルビニルシラン、{ジ(トリメチルシリル)アミノ}ジエチルビニルシラン、{ジ(t-ブチルジメチルシリル)アミノ}ジエチルビニルシランなどを挙げることができる。
(ジアルキルアミノ)ジアルコキシアルキルビニルシランとしては、(ジメチルアミノ)ジメトキシメチルビニルシラン、(ジメチルアミノ)ジメトキシエチルビニルシラン、(ジメチルアミノ)ジエトキシメチルビニルシラン、(ジメチルアミノ)ジエトキシエチルビニルシラン、(ジエチルアミノ)ジメトキシメチルビニルシラン、(ジエチルアミノ)ジメトキシエチルビニルシラン、(ジエチルアミノ)ジエトキシメチルビニルシラン、(ジエチルアミノ)ジエトキシエチルビニルシランなどを挙げることができる。
ビス(ジアルキルアミノ)アルキルビニルシランとしては、ビス(ジメチルアミノ)メチルビニルシラン、ビス(エチルメチルアミノ)メチルビニルシラン、ビス(ジエチルアミノ)メチルビニルシラン、ビス(エチル-n-プロピルアミノ)メチルビニルシラン、ビス(エチルイソプロピルアミノ)メチルビニルシラン、ビス(ジ(n-プロピル)アミノ)メチルビニルシラン、ビス(ジイソプロピルアミノ)メチルビニルシラン、ビス(n-ブチル-n-プロピルアミノ)メチルビニルシラン、ビス(ジ(n-ブチル)アミノ)メチルビニルシラン、
ビス(ジメチルアミノ)エチルビニルシラン、ビス(エチルメチルアミノ)エチルビニルシラン、ビス(ジエチルアミノ)エチルビニルシラン、ビス(エチル-n-プロピルアミノ)エチルビニルシラン、ビス(エチルイソプロピルアミノ)エチルビニルシラン、ビス(ジ(n-プロピル)アミノ)エチルビニルシラン、ビス(ジイソプロピルアミノ)エチルビニルシラン、ビス(n-ブチル-n-プロピルアミノ)エチルビニルシラン、ビス(ジ(n-ブチル)アミノ)エチルビニルシラン、
ビス(ジメチルアミノ)プロピルビニルシラン、ビス(エチルメチルアミノ)プロピルビニルシラン、ビス(ジエチルアミノ)プロピルビニルシラン、ビス(エチル-n-プロピルアミノ)プロピルビニルシラン、ビス(エチルイソプロピルアミノ)プロピルビニルシラン、ビス(ジ(n-プロピル)アミノ)プロピルビニルシラン、ビス(ジイソプロピルアミノ)プロピルビニルシラン、ビス(n-ブチル-n-プロピルアミノ)プロピルビニルシラン、ビス(ジ(n-ブチル)アミノ)プロピルビニルシラン、
ビス(ジメチルアミノ)ブチルビニルシラン、ビス(エチルメチルアミノ)ブチルビニルシラン、ビス(ジエチルアミノ)ブチルビニルシラン、ビス(エチル-n-プロピルアミノ)ブチルビニルシラン、ビス(エチルイソプロピルアミノ)ブチルビニルシラン、ビス(ジ(n-プロピル)アミノ)ブチルビニルシラン、ビス(ジイソプロピルアミノ)ブチルビニルシラン、ビス(n-ブチル-n-プロピルアミノ)ブチルビニルシラン、ビス(ジ(n-ブチル)アミノ)ブチルビニルシランなどを挙げることができる。
ビス{ジ(トリアルキルシリル)アミノ}アルキルビニルシランとしては、ビス{ジ(トリメチルシリル)アミノ}メチルビニルシラン、ビス{ジ(t-ブチルジメチルシリル)アミノ}メチルビニルシラン、ビス{ジ(トリメチルシリル)アミノ}エチルビニルシラン、ビス{ジ(t-ブチルジメチルシリル)アミノ}エチルビニルシランなどを挙げることができる。
ビス(ジアルキルアミノ)アルコキシアルキルビニルシランとしては、ビス(ジメチルアミノ)メトキシメチルビニルシラン、ビス(ジメチルアミノ)メトキシエチルビニルシラン、ビス(ジメチルアミノ)エトキシメチルビニルシラン、ビス(ジメチルアミノ)エトキシエチルビニルシラン、ビス(ジエチルアミノ)メトキシメチルビニルシラン、ビス(ジエチルアミノ)メトキシエチルビニルシラン、ビス(ジエチルアミノ)エトキシメチルビニルシラン、ビス(ジエチルアミノ)エトキシエチルビニルシランなどを挙げることができる。
例えば、トリ(ジメチルアミノ)ビニルシラン、トリ(エチルメチルアミノ)ビニルシラン、トリ(ジエチルアミノ)ビニルシラン、トリ(エチルプロピルアミノ)ビニルシラン、トリ(ジプロピルアミノ)ビニルシラン、トリ(ブチルプロピルアミノ)ビニルシランなどを挙げることができる。
R10 aML4-a(IV)
(式中、R10はアルキル基、アルケニル基、シクロアルケニル基または芳香族残基を表し、Mはケイ素原子またはスズ原子を表し、Lはハロゲン原子またはヒドロカルビルオキシ基を表し、aは0~2の整数を表す。)
ここで、芳香族残基は、芳香族炭化水素から芳香環に結合している水素を除いた1価の基を表す。
なお、シリカの窒素吸着比表面積は、ASTM D3037-81に準じてBET法で測定される値である。
物性評価は次の方法で行った。なお、以下の評価においては、実施例1~4及び比較例2~4は比較例1を基準比較例とし、実施例5は比較例5を基準比較例とした。
赤外分光分析法により、ビニル基の吸収ピークである910cm-1付近の吸収強度より重合体のビニル結合量を求めた。
JIS K6383(1995)に従って、屈折率から重合体のスチレン単位の含量を求めた。
下記の条件(1)~(8)でゲル・パーミエイション・クロマトグラフ(GPC)法により、重量平均分子量(Mw)と数平均分子量(Mn)を測定した。そして、測定したMw、Mnから重合体の分子量分布(Mw/Mn)を求めた。
(1)装置:東ソー社(株)製HLC-8020
(2)分離カラム:東ソー社(株)製GMH-XL(2本直列)
(3)測定温度:40℃
(4)キャリア:テトラヒドロフラン
(5)流量:0.6mL/分
(6)注入量:5μL
(7)検出器:示差屈折
(8)分子量標準:標準ポリスチレン
シート状の加硫ゴム組成物から幅1mmまたは2mm、長さ40mmの短冊状試験片を打ち抜き、試験に供した。(株)上島製作所製スペクトロメーターを用いて、動的歪振幅1%、周波数10Hz、温度50℃でtanδを測定した。tanδの逆数の値について基準比較例を100として指数表示した。数値が大きいほど転がり抵抗が小さく、低燃費性であることを示している。
転がり抵抗試験機を用い、試験用タイヤを、リム(15×6JJ)、内圧(230kPa)、荷重(3.43kN)、速度(80km/h)で走行させたときの転がり抵抗を測定し、基準比較例を100とした時の指数で表示した。指数は大きい方が良好(低燃費性)である。
各試験用タイヤを車両(国産FF2000cc)の全輪に装着して、湿潤アスファルト路面にて初速度100km/hからの制動距離を求めた。結果は指数で表し、数字が大きいほどウェットスキッド性能(ウェットグリップ性能)が良好である。指数は次の式で求めた。
ウェットスキッド性能=(基準比較例の制動距離)/(各実施例又は各比較例の制動距離)×100
LAT試験機(Laboratory Abrasion and Skid Tester)を用い、荷重50N、速度20km/h、スリップアングル5°の条件にて、各加硫ゴム組成物の容積損失量を測定した。表2及び3の数値(LAT指数)は、基準比較例の容積損失量を100としたときの相対値である。当該数値が大きいほど耐摩耗性に優れている。
内容積20リットルのステンレス製重合反応器内を洗浄、乾燥し、乾燥窒素で置換し、ヘキサン(比重0.68g/cm3)10.2kg、1,3-ブタジエン547g、スチレン173g、テトラヒドロフラン6.1ml、エチレングリコールジエチルエーテル5.0mlを重合反応器内に投入した。次に、ビス(ジエチルアミノ)メチルビニルシラン11.1mmol及びn-ブチルリチウム13.1mmolを、それぞれ、シクロヘキサン溶液及びn-ヘキサン溶液として投入し、重合を開始した。
撹拌速度を130rpm、重合反応器内温度を65℃とし、単量体を重合反応器内に連続的に供給しながら、1,3-ブタジエンとスチレンの共重合を3時間行った。全重合での1,3-ブタジエンの供給量は821g、スチレンの供給量は259gであった。
次に、得られた重合体溶液を130rpmの撹拌速度で撹拌し、3-ジエチルアミノプロピルトリエトキシシラン11.1mmolを添加し、15分間撹拌した。重合体溶液にメタノール0.54mlを含むヘキサン溶液20mlを加えて、更に重合体溶液を5分間撹拌した。
内容積5リットルのステンレス製重合反応器内を洗浄、乾燥し、乾燥窒素で置換し、ヘキサン(比重0.68g/cm3)2.55kg、1,3-ブタジエン137g、スチレン43g、テトラヒドロフラン1.5ml、エチレングリコールジエチルエーテル1.2mlを重合反応器内に投入した。次に、n-ブチルリチウム3.6mmolをn-ヘキサン溶液として投入し、1,3-ブタジエンとスチレンの共重合を2.5時間行った。重合中、撹拌速度を130rpm、重合反応器内温度を65℃とし、単量体を重合反応器内に連続的に供給した。1,3-ブタジエンの供給量は205g、スチレンの供給量は65gであった。
該2.5時間の重合後、ビス(ジエチルアミノ)メチルビニルシラン2.8mmolをシクロヘキサン溶液として、撹拌速度130rpm、重合反応器内温度65℃の条件下で、重合反応器内に投入し30分間撹拌した。
次に、メタノール0.14mlを含むヘキサン溶液20mlを重合反応器内に投入し、重合体溶液を5分間撹拌した。
内容積20リットルのステンレス製重合反応器内を洗浄、乾燥し、乾燥窒素で置換し、ヘキサン(比重0.68g/cm3)10.2kg、1,3-ブタジエン547g、スチレン173g、テトラヒドロフラン6.1ml、エチレングリコールジエチルエーテル5.0mlを重合反応器内に投入した。次に、ビス(ジエチルアミノ)メチルビニルシラン11.1mmol及びn-ブチルリチウム13.1mmolを、それぞれ、シクロヘキサン溶液及びn-ヘキサン溶液として投入し、重合を開始した。
撹拌速度を130rpm、重合反応器内温度を65℃とし、単量体を重合反応器内に連続的に供給しながら、1,3-ブタジエンとスチレンの共重合を3時間行った。全重合での1,3-ブタジエンの供給量は821g、スチレンの供給量は259gであった。
次に、重合体溶液にメタノール0.54mlを含むヘキサン溶液20mlを加えて、更に重合体溶液を5分間撹拌した。
内容積20リットルのステンレス製重合反応器内を洗浄、乾燥し、乾燥窒素で置換し、ヘキサン(比重0.68g/cm3)10.2kg、1,3-ブタジエン547g、スチレン173g、テトラヒドロフラン6.1ml、エチレングリコールジエチルエーテル5.0mlを重合反応器内に投入した。次に、n-ブチルリチウム13.1mmolをn-ヘキサン溶液として投入し、重合を開始した。
撹拌速度を130rpm、重合反応器内温度を65℃とし、単量体を重合反応器内に連続的に供給しながら、1,3-ブタジエンとスチレンの共重合を3時間行った。全重合での1,3-ブタジエンの供給量は821g、スチレンの供給量は259gであった。
次に、得られた重合体溶液を130rpmの撹拌速度で撹拌し、3-ジエチルアミノプロピルトリエトキシシラン11.1mmolを添加し、15分間撹拌した。重合体溶液にメタノール0.54mlを含むヘキサン溶液20mlを加えて、更に重合体溶液を5分間撹拌した。
内容積20リットルのステンレス製重合反応器内を洗浄、乾燥し、乾燥窒素で置換し、ヘキサン(比重0.68g/cm3)10.2kg、1,3-ブタジエン547g、スチレン173g、テトラヒドロフラン6.1ml、エチレングリコールジエチルエーテル5.0mlを重合反応器内に投入した。次に、n-ブチルリチウム13.1mmolをn-ヘキサン溶液として投入し、重合を開始した。
撹拌速度を130rpm、重合反応器内温度を65℃とし、単量体を重合反応器内に連続的に供給しながら、1,3-ブタジエンとスチレンの共重合を3時間行った。全重合での1,3-ブタジエンの供給量は821g、スチレンの供給量は259gであった。
次に、重合体溶液にメタノール0.54mlを含むヘキサン溶液20mlを加えて、更に重合体溶液を5分間撹拌した。
内容積20リットルのステンレス製重合反応器内を洗浄、乾燥し、乾燥窒素で置換し、ヘキサン(比重0.68g/cm3)10.2kg、1,3-ブタジエン547g、スチレン173g、テトラヒドロフラン6.1ml、エチレングリコールジエチルエーテル5.0mlを重合反応器内に投入した。次に、ビス(ジエチルアミノ)メチルビニルシラン11.1mmol及びn-ブチルリチウム13.1mmolを、それぞれ、シクロヘキサン溶液及びn-ヘキサン溶液として投入し、重合を開始した。
撹拌速度を130rpm、重合反応器内温度を65℃とし、単量体を重合反応器内に連続的に供給しながら、1,3-ブタジエンとスチレンの共重合を3時間行った。全重合での1,3-ブタジエンの供給量は821g、スチレンの供給量は259gであった。
次に、得られた重合体溶液を130rpmの撹拌速度で撹拌し、3-ジエチルアミノプロピルトリエトキシシラン11.1mmolを添加し、15分間撹拌した。重合体溶液にメタノール0.54mlを含むヘキサン溶液20mlを加えて、更に重合体溶液を5分間撹拌した。
天然ゴム:RSS#3
ブタジエンゴム:宇部興産(株)製のウベポールBR150B
重合体1~6:上記製造例1~6
シリカ:デグッサ社製のウルトラシルVN3-G(N2SA:175m2/g)
シランカップリング剤:デグッサ社製のSi69(ビス(3-トリエトキシシリルプロピル)テトラスルフィド)
カーボンブラック:三菱化学(株)製のダイアブラックN339(N2SA:96m2/g、DBP吸収量:124ml/100g)
オイル:(株)ジャパンエナジー製のX-140
老化防止剤:住友化学(株)製のアンチゲン3C
ステアリン酸:日油(株)製のビーズステアリン酸つばき
酸化亜鉛:三井金属鉱業(株)製の亜鉛華1号
ワックス:大内新興化学工業(株)製のサンノックN
硫黄:鶴見化学工業(株)製の粉末硫黄
加硫促進剤1:住友化学(株)製のソクシノールCZ
加硫促進剤2:住友化学(株)製のソクシノールD
表2及び3に示す配合内容に従い、(株)神戸製鋼所製の1.7Lバンバリーミキサーを用いて、硫黄及び加硫促進剤以外の材料を150℃の条件下で5分間混練りし、混練り物を得た。次に、得られた混練り物に硫黄及び加硫促進剤を添加し、オープンロールを用いて、80℃の条件下で5分間練り込み、未加硫ゴム組成物を得た。得られた未加硫ゴム組成物を170℃で20分間、0.5mm厚の金型でプレス加硫し、加硫ゴム組成物を得た。
また、得られた未加硫ゴム組成物をトレッドの形状に成形し、タイヤ成型機上で他のタイヤ部材とともに貼り合わせて未加硫タイヤを形成し、170℃で12分間加硫し、試験用タイヤ(サイズ:195/65R15)を製造した。
Claims (9)
- ゴム成分及びシリカを含有し、
前記ゴム成分100質量%のうち、共役ジエンに基づく構成単位と下式(I)で表される構成単位とを有する共役ジエン系重合体であって、下式(II)で表される化合物によって重合体の少なくとも一端が変性されてなる共役ジエン系重合体の含有量が5質量%以上であり、
前記ゴム成分100質量部に対する前記シリカの含有量が5~150質量部であることを特徴とするゴム組成物。
- 式(Ia)のR1及びR2が炭素原子数1~6のヒドロカルビル基であることを特徴とする請求項1に記載のゴム組成物。
- 式(I)のX1、X2及びX3の2つが式(Ia)で表される基又は水酸基であることを特徴とする請求項1又は2に記載のゴム組成物。
- 共役ジエン系重合体のビニル結合量が、共役ジエンに基づく構成単位の含有量を100モル%として、10モル%以上80モル%以下であることを特徴とする請求項1~4のいずれかに記載のゴム組成物。
- 天然ゴム及び/又はブタジエンゴムを含有することを特徴とする請求項1~5のいずれかに記載のゴム組成物。
- 前記シリカの窒素吸着比表面積が40~400m2/gであることを特徴とする請求項1~6のいずれかに記載のゴム組成物。
- トレッド用ゴム組成物として用いられることを特徴とする請求項1~7のいずれかに記載のゴム組成物。
- 請求項1~8のいずれかに記載のゴム組成物を用いて作製した空気入りタイヤ。
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Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000344955A (ja) | 1999-06-04 | 2000-12-12 | Sumitomo Rubber Ind Ltd | 変性ジエン系ゴム組成物 |
JP2010077412A (ja) * | 2008-08-27 | 2010-04-08 | Sumitomo Chemical Co Ltd | 共役ジエン系重合体、共役ジエン系重合体組成物及び共役ジエン系重合体の製造方法 |
Family Cites Families (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937681A (en) | 1969-02-07 | 1976-02-10 | Chemische Werke Huels Aktiengesellschaft | Tire tread of homopolymers of butadiene |
DE3167793D1 (en) | 1980-06-19 | 1985-01-31 | Huels Chemische Werke Ag | 1,3-diene-homo and copolymers containing reactive silyl groups, process for their preparation and their use |
US4836262A (en) | 1986-08-08 | 1989-06-06 | Bridgestone Corporation | Metal cords and pneumatic tires using the same |
US5189109A (en) * | 1988-02-25 | 1993-02-23 | Sumitomo Chemical Company, Limited | Modified diene polymer rubbers |
JP2540901B2 (ja) | 1988-02-25 | 1996-10-09 | 住友化学工業株式会社 | 変性ゴム組成物 |
CA1338317C (en) | 1988-02-25 | 1996-05-07 | Akio Imai | Modified diene polymer rubbers |
JPH0477536A (ja) | 1990-07-13 | 1992-03-11 | Bridgestone Corp | ゴム組成物 |
JP3130995B2 (ja) | 1992-02-05 | 2001-01-31 | 株式会社ブリヂストン | トレッドゴム組成物 |
JP3736580B2 (ja) | 1996-02-23 | 2006-01-18 | 日本ゼオン株式会社 | ジエン系ゴム |
EP1022291B1 (en) | 1999-01-22 | 2005-01-19 | Ube Industries, Ltd. | Modified diene elastomer and its preparation |
US20020011293A1 (en) | 1999-03-02 | 2002-01-31 | David John Zanzig | Tire with reinforced rubber sidewall |
US6221953B1 (en) | 1999-08-10 | 2001-04-24 | The Goodyear Tire & Rubber Company | Tire with tread which contains spatially-defined resins |
US6590017B1 (en) | 2000-05-15 | 2003-07-08 | Bridgestone Corporation | Processability of silica-reinforced rubber containing an amide compound |
CN1274719C (zh) | 2001-09-27 | 2006-09-13 | Jsr株式会社 | 共轭二烯(共)聚合橡胶、(共)聚合橡胶的制造方法、橡胶组合物、复合体以及轮胎 |
JP3986821B2 (ja) | 2001-12-26 | 2007-10-03 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物および当該ゴム組成物を用いたタイヤ |
US7339005B2 (en) | 2003-01-31 | 2008-03-04 | Sumitomo Chemical Company, Limited | Process for producing modified diene polymer rubber |
EP2261282A3 (en) | 2003-11-28 | 2012-03-21 | Sumitomo Rubber Industries, Ltd. | Rubber composition for a tire and tire using the same |
JP2005213486A (ja) | 2004-02-02 | 2005-08-11 | Yokohama Rubber Co Ltd:The | アンダートレッド用ゴム組成物及びそれを使用する空気入りタイヤ |
JP4475992B2 (ja) | 2004-03-18 | 2010-06-09 | 住友ゴム工業株式会社 | タイヤトレッド用ゴム組成物およびそれを用いた空気入りタイヤ |
EP1577341B1 (en) | 2004-03-18 | 2006-12-13 | Sumitomo Rubber Industries, Ltd. | Rubber composition for tire tread and pneumatic tire using the same |
US20050272852A1 (en) | 2004-06-02 | 2005-12-08 | Sandstrom Paul H | Natural rubber-rich composition and tire with tread thereof |
US20060173118A1 (en) | 2005-01-28 | 2006-08-03 | Sumitomo Rubber Industries, Ltd. | Rubber composition and tire having tread comprising thereof |
JP4566888B2 (ja) | 2005-01-28 | 2010-10-20 | 住友ゴム工業株式会社 | ゴム組成物およびそれを用いたトレッドを有するタイヤ |
JP5198746B2 (ja) | 2005-11-29 | 2013-05-15 | 住友ゴム工業株式会社 | ゴム組成物およびそれを用いた空気入りタイヤ |
DE602006004826D1 (de) | 2005-11-29 | 2009-03-05 | Sumitomo Rubber Ind | Kautschukzusammensetzung und Luftreifen, der diese verwendet |
JP5154071B2 (ja) | 2005-12-28 | 2013-02-27 | 住友ゴム工業株式会社 | ゴム組成物およびそれを用いたタイヤ |
EP1803770B1 (en) | 2005-12-28 | 2014-07-16 | Sumitomo Rubber Industries, Ltd. | Rubber composition and tire using the same |
ATE461967T1 (de) | 2006-01-14 | 2010-04-15 | Continental Reifen Deutschland | Kautschukmischung und reifen |
CN101360784B (zh) | 2006-01-16 | 2012-06-06 | 宇部兴产股份有限公司 | 轮胎用橡胶组成物及轮胎 |
JP4663687B2 (ja) | 2006-07-26 | 2011-04-06 | 住友ゴム工業株式会社 | ゴム組成物ならびにそれを用いたトレッドおよび/またはサイドウォールを有するタイヤ |
EP1882716A1 (en) | 2006-07-26 | 2008-01-30 | Sumitomo Rubber Industries, Ltd. | Rubber composition and tire having tread and/or sidewall using same |
JP5006617B2 (ja) | 2006-10-19 | 2012-08-22 | 住友ゴム工業株式会社 | ゴム組成物およびそれを用いたトレッドを有するタイヤ |
JP2008150435A (ja) | 2006-12-14 | 2008-07-03 | Toyo Tire & Rubber Co Ltd | タイヤ用ゴム組成物及び空気入りタイヤ |
WO2008075473A1 (ja) | 2006-12-20 | 2008-06-26 | Ube Industries, Ltd. | ゴルフボール用ゴム組成物及びゴルフボール |
JP5611585B2 (ja) | 2007-03-23 | 2014-10-22 | Jsr株式会社 | 変性共役ジエン系重合体の製造方法、変性共役ジエン系重合体、及びゴム組成物 |
JP2008280438A (ja) | 2007-05-11 | 2008-11-20 | Toyo Tire & Rubber Co Ltd | タイヤトレッド用ゴム組成物 |
JP2009091482A (ja) | 2007-10-10 | 2009-04-30 | Sumitomo Rubber Ind Ltd | スタッドレスタイヤに用いるトレッド用ゴム組成物およびそれを用いたトレッドを有するスタッドレスタイヤ |
JP5605669B2 (ja) | 2007-11-02 | 2014-10-15 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物およびタイヤ |
JP2009126907A (ja) | 2007-11-21 | 2009-06-11 | Sumitomo Rubber Ind Ltd | ゴム組成物 |
DE102008013265A1 (de) | 2008-03-08 | 2009-09-10 | Continental Aktiengesellschaft | Kautschukmischung und daraus hergestellte Reifen |
SG155871A1 (en) | 2008-03-31 | 2009-10-29 | Sumitomo Chemical Co | Conjugated diene polymer, conjugated diene polymer composition, and process for producing conjugated diene polymer |
SG159479A1 (en) | 2008-08-27 | 2010-03-30 | Sumitomo Chemical Co | Conjugated diene polymer, conjugated diene polymer composition, and method for producing conjugated diene polymer |
SG159474A1 (en) | 2008-08-27 | 2010-03-30 | Sumitomo Chemical Co | Conjugated diene polymer, conjugated diene polymer composition, and method for producing conjugated diene polymer |
CN101659732A (zh) | 2008-08-27 | 2010-03-03 | 住友化学株式会社 | 共轭二烯系聚合物、共轭二烯系聚合物组合物及其制造方法 |
SG159473A1 (en) | 2008-08-27 | 2010-03-30 | Sumitomo Chemical Co | Conjugated diene polymer, conjugated diene polymer composition, and method for producing conjugated diene polymer |
TW201022301A (en) | 2008-08-27 | 2010-06-16 | Sumitomo Chemical Co | Conjugated diene polymer, conjugated diene polymer composition, and method for producing conjugated diene polymer |
JP5466474B2 (ja) * | 2008-10-16 | 2014-04-09 | 住友ゴム工業株式会社 | ゴム組成物およびそれを用いたタイヤ |
CN101724185B (zh) | 2008-10-16 | 2013-10-23 | 住友橡胶工业株式会社 | 橡胶组合物及轮胎 |
JP4881362B2 (ja) | 2008-11-05 | 2012-02-22 | 住友ゴム工業株式会社 | ゴム組成物及びタイヤ |
JP4810567B2 (ja) | 2008-12-10 | 2011-11-09 | 住友ゴム工業株式会社 | スタッドレスタイヤ用トレッドゴム組成物及びスタッドレスタイヤ |
JP5466415B2 (ja) | 2009-03-18 | 2014-04-09 | 住友ゴム工業株式会社 | ベーストレッド用ゴム組成物及びタイヤ |
JP5200134B2 (ja) | 2010-07-16 | 2013-05-15 | 住友ゴム工業株式会社 | トレッド用ゴム組成物及び空気入りタイヤ |
JP5249404B2 (ja) | 2010-12-13 | 2013-07-31 | 住友ゴム工業株式会社 | ゴム組成物及び空気入りタイヤ |
-
2011
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- 2011-07-22 JP JP2012525437A patent/JP5767639B2/ja active Active
- 2011-07-22 KR KR1020137001016A patent/KR101824752B1/ko active IP Right Grant
- 2011-07-22 WO PCT/JP2011/066689 patent/WO2012011561A1/ja active Application Filing
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000344955A (ja) | 1999-06-04 | 2000-12-12 | Sumitomo Rubber Ind Ltd | 変性ジエン系ゴム組成物 |
JP2010077412A (ja) * | 2008-08-27 | 2010-04-08 | Sumitomo Chemical Co Ltd | 共役ジエン系重合体、共役ジエン系重合体組成物及び共役ジエン系重合体の製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2597117A4 * |
Cited By (22)
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JP2012131890A (ja) * | 2010-12-21 | 2012-07-12 | Sumitomo Rubber Ind Ltd | ゴム組成物及びスタッドレスタイヤ |
JP2012229385A (ja) * | 2011-04-27 | 2012-11-22 | Sumitomo Rubber Ind Ltd | ゴム組成物及び空気入りタイヤ |
JP2012246476A (ja) * | 2011-05-02 | 2012-12-13 | Sumitomo Rubber Ind Ltd | ゴム組成物及び空気入りタイヤ |
JP2013014708A (ja) * | 2011-07-05 | 2013-01-24 | Sumitomo Rubber Ind Ltd | ゴム組成物及び空気入りタイヤ |
JP2013014732A (ja) * | 2011-07-06 | 2013-01-24 | Sumitomo Rubber Ind Ltd | ゴム組成物及び空気入りタイヤ |
JP2013014733A (ja) * | 2011-07-06 | 2013-01-24 | Sumitomo Rubber Ind Ltd | ゴム組成物及び空気入りタイヤ |
JP2013014731A (ja) * | 2011-07-06 | 2013-01-24 | Sumitomo Rubber Ind Ltd | ゴム組成物及び空気入りタイヤ |
JP2013166823A (ja) * | 2012-02-14 | 2013-08-29 | Sumitomo Rubber Ind Ltd | ゴム組成物及び空気入りタイヤ |
JP2013203903A (ja) * | 2012-03-28 | 2013-10-07 | Sumitomo Rubber Ind Ltd | トラック・バスタイヤ用ゴム組成物及びトラック・バスタイヤ |
JP2013241527A (ja) * | 2012-05-21 | 2013-12-05 | Sumitomo Rubber Ind Ltd | サイドウォール用ゴム組成物及び空気入りタイヤ |
JP2013245263A (ja) * | 2012-05-24 | 2013-12-09 | Sumitomo Rubber Ind Ltd | サイドウォール用ゴム組成物及び空気入りタイヤ |
JP2013249420A (ja) * | 2012-06-01 | 2013-12-12 | Sumitomo Rubber Ind Ltd | スタッドレスタイヤ用ゴム組成物及びスタッドレスタイヤ |
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JP2013249424A (ja) * | 2012-06-01 | 2013-12-12 | Sumitomo Rubber Ind Ltd | サイドウォール用ゴム組成物及び空気入りタイヤ |
JP2013253209A (ja) * | 2012-06-08 | 2013-12-19 | Sumitomo Rubber Ind Ltd | ベーストレッド用ゴム組成物及び空気入りタイヤ |
JP2013253207A (ja) * | 2012-06-08 | 2013-12-19 | Sumitomo Rubber Ind Ltd | トラック・バスタイヤ用ゴム組成物及びトラック・バスタイヤ |
JP2014001302A (ja) * | 2012-06-18 | 2014-01-09 | Sumitomo Rubber Ind Ltd | トラック・バスタイヤ用ゴム組成物及びトラック・バスタイヤ |
JP2014001303A (ja) * | 2012-06-18 | 2014-01-09 | Sumitomo Rubber Ind Ltd | サイドウォール用ゴム組成物及び空気入りタイヤ |
JP2015000925A (ja) * | 2013-06-14 | 2015-01-05 | 住友ゴム工業株式会社 | トラック・バスタイヤのキャップトレッド用ゴム組成物及びトラック・バスタイヤ |
JP2019048925A (ja) * | 2017-09-08 | 2019-03-28 | 横浜ゴム株式会社 | ゴム組成物及び空気入りタイヤ |
JP7027739B2 (ja) | 2017-09-08 | 2022-03-02 | 横浜ゴム株式会社 | ゴム組成物及び空気入りタイヤ |
Also Published As
Publication number | Publication date |
---|---|
US9328225B2 (en) | 2016-05-03 |
CN102958992B (zh) | 2016-01-20 |
KR20130129889A (ko) | 2013-11-29 |
US20130079464A1 (en) | 2013-03-28 |
EP2597117B1 (en) | 2016-01-13 |
JPWO2012011561A1 (ja) | 2013-09-09 |
EP2597117A1 (en) | 2013-05-29 |
KR101824752B1 (ko) | 2018-02-01 |
RU2012156030A (ru) | 2014-08-27 |
EP2597117A4 (en) | 2014-07-02 |
JP5767639B2 (ja) | 2015-08-19 |
CN102958992A (zh) | 2013-03-06 |
BR112012032760A2 (pt) | 2016-11-08 |
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