WO1998031745A1 - Compositions de gommes pour pneus - Google Patents
Compositions de gommes pour pneus Download PDFInfo
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- WO1998031745A1 WO1998031745A1 PCT/JP1998/000216 JP9800216W WO9831745A1 WO 1998031745 A1 WO1998031745 A1 WO 1998031745A1 JP 9800216 W JP9800216 W JP 9800216W WO 9831745 A1 WO9831745 A1 WO 9831745A1
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- rubber
- carbon atoms
- general formula
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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
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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
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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
- B60C1/0025—Compositions of the sidewalls
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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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0838—Copolymers of ethene with aromatic monomers
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM 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
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
Definitions
- the present invention relates to a rubber composition for a tire, and more particularly, to a rubber composition suitable for a tire sidewall and a rubber composition suitable for a tire tread.
- the role of the side wall part in pneumatic tires is to protect the carcass part and to relieve the stress or strain in the tread part during tire running.
- radial tires are more biased.
- the role is considered more important than key role. Therefore, the characteristics required for the side wall portion to protect the carcass portion include weather resistance, trauma resistance when traveling on rough roads, and adhesion to the carcass portion.
- a characteristic of the side wall portion required for relaxing the stress and strain of the tread portion is bending resistance. That is, pneumatic tires are used under various environments and conditions, and thus require the various characteristics described above.
- the life of tires has been prolonged as road maintenance has progressed recently and radial tires have become more widespread.
- Thailand Gen-based rubbers used in chassis walls have insufficient weather resistance, and therefore, amide-based antioxidants and paraffin-based waxes are used.
- gen-based rubber products containing an amide-based anti-aging agent or paraffin-based wax have a surface in which the amide-based anti-aging agent or paraffin-based wax is gradually covered with the passage of time.
- the surface will turn red and the product value will decrease, and the aging-based antioxidant and paraffin-based powder will scatter when running tires, causing ozone cracks on the surface.
- As a prescription not containing an antioxidant or the like application of EPT having high ozone resistance is known. However, there was still a point to be improved in terms of strength characteristics of the tire toewall consisting of this EPT and Jen rubber.
- styrene-butadiene copolymer rubber has been used as rubber for tire treads of automobiles (rubber for tire treads).
- styrene-butadiene copolymer rubber is used alone as the rubber component.
- the tire tread used has relatively good braking performance (wet skid) on wet road surfaces, but has low rebound resilience at 50 to 70 ° C, and has a low rolling resistance. 3
- the galling resistance is large and the abrasion resistance is poor.
- a blend of styrene / butylene copolymer rubber and natural rubber is generally used as a rubber material for automobile tire treads.
- abrasion resistance there is a demand for a rubber that is well balanced from the viewpoint of safety, that is, has high braking performance even on wet road surfaces. There is a problem that these properties cannot be satisfied with a blend of rubber and natural rubber.
- Japanese Patent Publication No. 56-933738 discloses that It describes a rubber material for tire tread, in which polybutadiene rubber and halogen-containing polyisobutylene / isoprene rubber are blended. However, even with the above blends, the wear resistance, braking performance and rolling resistance are not yet sufficient.
- (ii)] is in the range of 982 to 60/40, and the intrinsic viscosity [7?] measured in 135 ° C decalin is in the range of 1.0 to 6.0,0 dl / g.
- the aromatic vinyl compound (ii) is preferably an aromatic vinyl compound represented by the following general formula (I).
- R 1 and R 2 may be the same or different from each other, and represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and R 3 is an alkyl group having 1 to 8 carbon atoms.
- m is an integer of 0 to 5
- n is an integer of 0 to 2.
- Vulcanizing agents may be included in addition to (A) the unsaturated olefin-based copolymer and (B) the gen-based rubber.
- the unsaturated unsaturated copolymer is used in an amount of 100 parts by weight of the total amount of the unsaturated unsaturated copolymer (A) and the rubber (B).
- the content of the copolymer (A) is 20 to 80 parts by weight
- the content of the gen-based rubber (B) is 20 to 80 parts by weight.
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 may be the same or different from each other, and may be a hydrogen atom or an alkyl having 1 to 5 carbon atoms.
- R 8 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms
- R 9 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or — (CH 2 ) n —scale ⁇ Niji! ⁇ 11! ⁇
- Ru group here the represented by 12, n is an integer of. 1 to 5, R 1.
- R 11 may be the same or different each other, is a hydrogen atom or a carbon atoms 1 ⁇
- R 12 represents an alkyl group having 1 to 5 carbon atoms. (However, when both p and q are 1, R 9 represents a hydrogen atom or a carbon atom having 1 to 5 carbon atoms.) 5). )
- f is an integer of 0 to 5
- g is an integer of 1 to 6
- RR 2 , R 5 , R 6 and R 7 may be the same or different from each other, and may be a hydrogen atom or
- R 8 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms
- R 9 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkyl group having 1 to 5 carbon atoms
- (CH 2 ) n — CR 10 a group represented by CRR 12 (where n is an integer of 1 to 5, R 1 () and R 11 may be the same or different and each have a hydrogen atom or a carbon atom number.
- R 1 represents an alkyl group having 1 to 5 carbon atoms
- R 12 represents an alkyl group having 1 to 5 carbon atoms.
- the non-conjugated polyene is represented by the general formula (II-a), and the structural unit derived from the non-conjugated polyene is selected from the compounds represented by the general formula ( ⁇ -b) It is preferable that at least one kind of non-conjugated triene or tetraene is used.
- the structural unit represented by the general formula (IV-a) and derived from the non-conjugated polyene is a compound represented by the general formula (IV- It is preferable that at least one non-conjugated triene or tetraene selected from the compounds represented by b).
- the (B) gen-based rubber is preferably at least one kind of rubber selected from the group consisting of natural rubber, isoprene rubber, styrene-butadiene rubber, and bushingen rubber.
- the rubber composition for a tire sidewall of the present invention is formed into a predetermined shape and then vulcanized to obtain a tire sidewall.
- the rubber composition for a tire tread according to the present invention is the following composition ((1)
- the molar ratio [ ⁇ (i) + (iv) ⁇ / (ii)] of the total amount of the constituent units derived from 10-in (iv) and the constituent units derived from the aromatic vinyl compound (ii) is 9 9 Z 1 to 85 5/15, an unsaturated olefinic copolymer,
- weight ratio of unsaturated unsaturated copolymer ( ⁇ ′) to gen-based rubber ( ⁇ ) [( ⁇ ′) / ( ⁇ )] is from 199 to 50/50.
- the intrinsic viscosity [7?] Of the unsaturated olefin copolymer ( ⁇ ') measured in a decalin solvent at 135 ° C is 1 to 10 dl / g.
- the rubber composition for a tire tread according to (1) is 1 to 10 dl / g.
- non-conjugated polyene (iii) constituting the unsaturated olefin copolymer ( ⁇ ') according to any one of the above (1) to (3), wherein the non-conjugated polyene (iii) is a hydrocarbon triene or tetraene. Rubber composition for tire treads.
- the non-conjugated polyene (iii) constituting the unsaturated olefin copolymer ( ⁇ ′) is a non-conjugated polymer represented by the above general formula ( ⁇ -a) or ( ⁇ -a).
- the non-conjugated polyene (iii) constituting the unsaturated olefin copolymer ( ⁇ ′) is a non-conjugated polyene (iii) represented by the general formula (IV-a) or (Va).
- the non-conjugated triene or tetraene has a total of 9 or more non-conjugated hydrogen atoms directly bonded to all carbon atoms adjacent to all carbon-carbon double bonds contained in one molecule.
- the rubber composition for tire sidewall according to the present invention comprises (A) a specific unsaturated olefin-based copolymer and (B) a gen-based rubber, and if necessary, (C) carbon black and (D) Contains a vulcanizing agent.
- the rubber composition for tire tread according to the present invention contains ( ⁇ ′) a specific unsaturated unsaturated olefin-based copolymer and ( ⁇ ⁇ ) a gen-based rubber).
- ( ⁇ ) unsaturated unsaturated copolymer and ( ⁇ ') unsaturated unsaturated copolymer are composed of (i) ethylene, (ii) aromatic vinyl compound and (iii) non-conjugated A random copolymer with polyene, or a random copolymer of (i) ethylene, (ii) aromatic butyl compound, (iii) non-conjugated polyene, and (iv) one-year-old fin having 3 or more carbon atoms.
- A) unsaturated unsaturated copolymer and ( ⁇ ') unsaturated unsaturated copolymer are composed of (i) ethylene, (ii) aromatic vinyl compound and (iii) non-conjugated A random copolymer with polyene, or a random copolymer of (i) ethylene, (ii) aromatic butyl compound, (iii) non-conjugated polyene, and (iv) one-year-old fin having 3 or more carbon
- R 1 and R 2 may be the same or different and each represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. Group.
- R 3 represents an alkyl group having 1 to 8 carbon atoms, an alkoxy group, a carboxyl group, an acyloxy group, an acyloxy-substituted alkyl group, a hydroxyl group or a halogen atom.
- n is an integer from 0 to 5, preferably from 0 to 3.
- n is an integer from 0 to 2, preferably 0 or 1.
- aromatic vinyl compound as described above examples include, for example, mono- or polyalkylstyrenes such as styrene, methylstyrene, dimethylstyrene, and ethylstyrene, methoxystyrene, and ethoxystyrene.
- Styrene derivatives containing functional groups such as vinylbenzoic acid, methyl vinylbenzoate, vinylbenzyl acetate, hydroxystyrene, chlorostyrene, divinylbenzene, arylbenzene, 4-phenylbutene-1, 3-phenylbutene-1, 4- (4-methylphenyl) butene-1, 4--(
- aromatic vinyl compounds styrene and arylbenzene. —4-phenylbutene-1 are preferable, and styrene is particularly preferably used.
- the aromatic vinyl compounds can be used alone or in combination of two or more.
- Non-conjugated polyenes include dicyclopentene, 1,4- Gen compounds such as hexadiene, cyclooctadiene, methylenenorbornene, ethylidenenorbornene, vinylnorbornene, 7-methyl-1,6-octane, non-conjugated compounds having one vinyl group in one molecule Triene or tetrane and unconjugated triene or tetrane having one 5-norbornene-2-yl group in one molecule are mentioned.
- the total number of carbon atoms per molecule of the unconjugated triene or tetrane (if two or more types of non-conjugated triene or tetrane are contained, the average number of carbon atoms is not particularly limited). It is preferably from 9 to 30, more preferably from 10 to 25, and particularly preferably from 10 to 22.
- a non-conjugated triene or tetrane having a carbon atom number in such a range is advantageous because it is easy to handle such as purification.
- tetraene means one carbon atom in one molecule.
- the carbon-carbon double bond includes a carbon-carbon double bond of a vinyl group and a carbon-carbon double bond of a 5-norbornene-2-yl group.
- the use of the non-conjugated triene or tetrane as described above can provide a rubber composition for tire tread excellent in abrasion resistance, brake braking performance, rolling resistance and strength.
- An unconjugated triene or tetrane has three (for triene) or four (for tetrane) carbon-carbon doubles, including vinyl or 5-norpolene-2-yl groups.
- the total number of hydrogen atoms directly bonded to the carbon atom adjacent to the carbon-carbon double bond is usually, but not particularly limited to, preferably 9 to 33, more preferably 12 to 33, It is particularly preferable that the number be 14 to 33. It is preferable that the total number of hydrogen atoms be in such a range, since a copolymer having a high crosslinking reaction rate can be obtained.
- the total number of hydrogen atoms is in such a range, a rubber composition for a tire sidewall or a rubber composition for a tire tread having excellent strength properties can be obtained.
- the number of hydrogen atoms is represented by the average of the number of hydrogen atoms when the non-conjugated triene or tetran used is a mixture of two or more.
- non-conjugated triene or tetrane in a non-conjugated triene or tetrane, one chain hydrocarbon group and two hydrogen groups are added to a carbon atom adjacent to a vinyl group or a 5-norporen-2-yl group. Preference is given to non-conjugated trienes or tetraenes in which the atoms are bonded. That is, non-covalent triene or tetran in which a vinyl group or a 5-norbornene-2-yl group is bonded to a methylene group (one CH 2 —) is preferred.
- ⁇ -a compounds represented by the following general formula ( ⁇ -a) or the following formula ( ⁇ -a) are preferable.
- p and q may be the same or different and are 0 or 1 (however, p and q are not simultaneously 0).
- f is an integer from 0 to 5, and preferably an integer from 0 to 2 (however, it is not 0 when p and q are both 1).
- g is an integer from 1 to 6, preferably an integer from 1 to 3.
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 may be the same or different and represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms. Or a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, more preferably R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are hydrogen atoms and R 7 is a hydrogen atom or a carbon atom It is an alkyl group having 1 to 3 numbers.
- examples of the alkyl group having 1 to 5 carbon atoms include methyl, ethyl, n-propyl, i-propyl, n-butyl, tributyl, sec-butyl, t-butyl, pentyl and the like. Is mentioned.
- R 8 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and more preferably an alkyl group having 1 to 3 carbon atoms. It is.
- the non-conjugated polyene is a non-conjugated triene or tetrane represented by the general formula (II-a) or (III-a)
- the composition has a high vulcanization rate, and The resulting sunset wall and tire tread have excellent strength properties.
- non-conjugated triene or tetrane represented by the above general formula (II-a) include the following compounds.
- non-conjugated triene or tetrane represented by the general formula (III-a) is a non-conjugated triene or tetrane represented by the general formula (II-a).
- non-conjugated triene or tetrane represented by the general formula (II-a) the non-conjugated triene or tetrane represented by the following general formula (IV-a) is preferable.
- the non-conjugated triene or tetrane is a compound having a p-force of 1 and a q of 0 in the non-conjugated triene or tetrane represented by the general formula (II-a).
- non-conjugated triene or tetrane represented by the general formula ( ⁇ -a) a non-conjugated triene or tetrane represented by the following general formula (V-a) is preferable.
- the non-conjugated triene or tetrane is a compound having a p-force of 1 and a q of 0 in the non-conjugated triene or tetrane represented by the general formula (III-a).
- f is an integer from 0 to 5, preferably an integer from 0 to 0
- R 1 , R 2 , R 5 , R 6 and R 7 may be the same or different from each other and are the same as those in the above formula ( ⁇ -a); And R 1 , R 2 , R 5 and R e are hydrogen atoms and R 7 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. is there.
- R ′, R 2 , R 5 and R s are hydrogen atoms, an unsaturated olefin copolymer excellent in polymerization reactivity and excellent in vulcanization rate and heat stability can be obtained.
- R 8 is the same as in the above general formula ( ⁇ -a), and is preferably a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms. .
- R 9 is the same as in the above general formula ( ⁇ -a), and is preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
- the non-conjugated polyene is a non-conjugated triene or tetrane represented by the general formula (IV-a) or (V-a)
- the composition has a high vulcanization rate, and The tire side wall and tire tread obtained from the product have excellent strength characteristics.
- non-conjugated triene or tetran represented by the general formula (IV-a) or (V-a) include the non-conjugated triene or the non-conjugated represented by the following general formula (ia) or (2a) Tetraene or the following general formula (3a) or Non-conjugated trines represented by (4a) are mentioned. Among them.
- non-conjugated triene or tetrane in which R 1 , R 2 , R 5 and R 6 are all hydrogen atoms are preferred, and R 1 , R 2 , R 5 and R 6 are all hydrogen atoms
- unsaturated olefin copolymers (A) and ( ⁇ ') having excellent polymerization reactivity and excellent vulcanization rate and heat stability can be obtained.
- non-conjugated triene wherein R 1 , R 2 , R 5 and R 6 are all hydrogen atoms are represented by the following general formula (5a) or (6a),
- ⁇ is an integer of 0 to 5
- g is an integer of 1 to 6
- R ′, R 2 , R 5 , R 6 and R 7 are a hydrogen atom or carbon.
- An alkyl group having 1 to 5 atoms R 8 is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms
- n is an integer of 1 to 5
- R and R 11 are a hydrogen atom or an alkyl group having 1 to 5 carbon atoms
- R 12 is an alkyl group having 1 to 5 carbon atoms.
- f is an integer of 0 to 5
- g is an integer of 1 to 6
- R 1 , R 2 , R 5 , R 6 and R 7 are a hydrogen atom or a carbon atom an alkyl group of 1 to 5
- R 8 is was hydrogen atom or an alkyl group of the alkyl group
- R 9 is a hydrogen atom or TansoHara child number 1 5 5 1 number of carbon atoms.
- f, g, R 7 and R 8 are the same as those in the general formula (3a) or (4a).
- Preferred among R 7 and R 8 are the same as those represented by the general formula (IV-a) or (V-a).
- R 9 is a hydrogen atom or TansoHara child number 1-5, the preferred properly is an alkyl group of 1 to 3. ]
- non-conjugated triene or tetrane represented by the general formula (IV-a) include the following compounds. Of these, the compounds (5), (6), (9), (11), (14), (19) and (20) are preferred.
- non-conjugated triene or tetrathrene represented by the general formula (V-a) include the non-conjugated triene or tetrathrene represented by the general formula (IV-a). And the like, in which the vinyl group of the compound obtained is replaced with a 5-norbornen-2-yl group.
- the non-conjugated polyene is preferably a compound represented by the general formula (II-a), and a compound represented by the general formula (IV-a) or (Va). It is more preferred that the compound is a compound represented by the above general formula (IV-a).
- the non-conjugated polyene is a non-co-functional triene or tetrane represented by the general formula ( ⁇ -a)
- the composition has a high vulcanization rate, and a tire sidewall obtained from the composition and Tire treads have excellent strength properties.
- the non-conjugated polyene is preferably a non-co-functional triene or tetrane represented by the general formula (IV-a) in view of mechanical strength, thermal stability, and low-temperature properties.
- the tire and the tire tread obtained from the composition will have cold resistance, low temperature characteristics, and vulcanization resistance. Especially excellent in degree.
- the non-conjugated triene or tetraene may be a mixture of a trans form and a cis form, or may be a trans form alone or a cis form alone. Note that the structural formula in this specification does not limit the three-dimensional structure.
- non-conjugated polyenes can be used alone or in combination of two or more.
- the general formula (II-a) May be used in combination of two or more non-conjugated trienes or tetrathrenes represented by ( ⁇ -a).
- non-conjugated tetranes represented by the general formula (1a) may be used in combination with the general formula (1a)
- the non-conjugated triene represented by (3a) or (5a) can be used in combination, or the non-conjugated tetrane represented by the general formula (1a) and the non-conjugated tetrane represented by the general formula (4a) Can be used in combination with the non-conjugated triene represented by
- the structure of the non-conjugated triene or tetrane can be determined by measuring mass spectrometry, infrared absorption spectrum, proton NMR spectrum and the like.
- non-conjugated triene or tetraene represented by the general formula ( ⁇ -a) or (III-a) is described in, for example, EP 0 916 135 A1 publication, W096 / 200150 It can be prepared by a conventionally known method as described in a gazette.
- a Grignard reagent (aryl-MgX or bur-MgX) is prepared by reacting a vinyl group-containing halide (eg, aryl halide, vinyl halide) with metal Mg. Then, when the Grignard reagent is reacted with a halogenated compound of a hydrocarbon containing a non-conjugated double bond (eg, geranyl halide), the radical of the general formula (II-a) or ( ⁇ Non-conjugated triene or tetrane represented by -a) can be produced.
- a halogenated compound of a hydrocarbon containing a non-conjugated double bond eg, geranyl halide
- the triene or tetrane represented by the above general formula (IV-a) can be produced, for example, by the method described in Japanese Patent Application Laid-Open No. H6-1545952 filed by the present applicant. That is, ethylene and a conjugated diene compound represented by the following general formula (IV-a ') or (IV-a''') Can be synthesized by reacting
- Examples of the conjugated diene compound represented by the general formula (IV-a ′) include the following compounds.
- the reaction between the conjugated diene compound and ethylene varies depending on the type of the conjugated diene compound, but is usually 50 to 200, preferably 70 to 150 ° C, and ethylene pressure of 0. 0 4 9 ⁇ 9.
- 8 MP a ( 0. 5 ⁇ 1 0 0 kg f / cm 2. gauge pressure), favored properly 0.98 ⁇ 9.
- 8 MP a (1 ⁇ 1 0 0 kg f / cm 2. gauge pressure), is properly favored by al 0.49 ⁇ 6.
- 9 MP a (5 ⁇ 7 0 kg f / cm 2. ⁇ ethylene carried out from 0.5 to 3 0 hours under a pressure of gauge pressure), the reaction vessel They may be added continuously or intermittently.
- This reaction may be performed in an atmosphere of an inert gas such as nitrogen or argon.
- This reaction can be carried out without using a solvent, but hexane, heptane, octane, nonane, decane, pendecan, dodecane, tridecane, toluene, xylene, etc.
- This reaction can be carried out in the presence of an inert hydrocarbon solvent.
- the target unconjugated triene or tetrane is usually obtained as a mixture of a trans form and a cis form, but one of the stereoisomers may be obtained as a single substance. .
- the mixture can be separated into a trans form and a cis form by distillation. Also, they can be used for polymerization without separating them.
- the reaction between the conjugated diene compound and ethylene is usually carried out in the presence of a catalyst.
- a catalyst comprising a transition metal compound and an organoaluminum compound, a desired non-conjugated triene or tetrane can be efficiently obtained.
- non-conjugated triene or tetrane represented by the general formula (IV-a) obtained as described above is subjected to a Diels-Alder reaction with dicyclopentene to obtain the general formula (Va)
- a non-conjugated triene or tetrane represented by is obtained.
- non-conjugated polyene other than the non-conjugated triene or tetrane examples include an aliphatic non-conjugated gen or an alicyclic non-conjugated having one copolymerizable carbon-carbon double bond in one molecule. And non-conjugated genes having two copolymerizable carbon-carbon double bonds in one molecule. These non-conjugated gens can be used alone or in combination of two or more, or in combination with the non-conjugated triene or tetrane.
- the aliphatic non-conjugated diene includes 1,4-hexadiene, 1,5-butadiene, 1,6-octadiene, 1,7-nonadiene, 1,8-decadiene. 1,12-tetradecadiene,
- Examples include 6-methyl-1,6-didecadiene and 9-methyl-1,8-didecadiene. Of these, 7-methyl-1,6-octagen and the like are preferred. These may be used alone or in combination of two or more. May be used.
- Examples of the alicyclic non-conjugated gen include 5-ethylidene-2-norbornene, 5-propylidene-2-norbornene, 5-butylidene-2-norbornene, and 2-methyl-2 , 5-norbornadiene, 2-ethyl-2,5-norbornadiene and the like. Of these, 5-ethylidene-2-norbornene is preferred. These may be used alone or in combination of two or more.
- non-conjugated gen having two copolymerizable carbon-carbon double bonds in one molecule examples include 5-vinyl-2-norbornene and 5-aryl-2-norbornene such as 5-vinyl-2-norbornene. alkenyl-2-Bruno Ruborunen; 2, 5-Noruborunaje down, dicyclopentadiene, Bruno Ruborunajen, Te Torashikuro [.. 4.
- deca - 3,8 Gen alicyclic such as Family gen; 1,7-octadiene; 1,9-decadiene; ⁇ -gen; Of these, 5-alkenyl-2-norbornene, dicyclopentene, 2,5-norbornadiene, 1,7-octadiene, and 1,9-decadiene are preferred, and in particular 5- Vinyl-2-norbornene is preferred. These may be used alone or in combination of two or more.
- the non-conjugated polyene is a non-conjugated triene or tetrane from the viewpoint of processability (vulcanization rate) and strength after vulcanization. It is more preferable from the above two points that it is a non-conjugated triene or tetrane represented by (III-a), and further represented by the above general formula (IV-a) or (V-a) Preferably, it is a non-conjugated trien or tetraen. Further, it is preferable that the above formula (Va) is used in view of cold resistance, low-temperature characteristics and mechanical strength. ⁇ (Iv) One-year-old refine with 3 or more carbon atoms ⁇
- olefin having 3 or more carbon atoms include propylene, 1-butene, 1-pentene, trihexene, 3-methyl-1-butene, and 3-methyl-toluene.
- One to twenty-five year old fins are listed.
- unsaturated olefin copolymers (A) those having 4 or more carbon atoms are preferred among them, and 1-butene, 1-hexene, 1-octene, and triphenyl are particularly preferred. Decene is preferred.
- unsaturated olefin copolymers among these unsaturated olefin copolymers ( ⁇ '), among these, propylene, 1-butene, 1-hexene, 4-methyl-1-pentene, trioctene and 1-decene are preferred. New
- These one-year-old fins can be used alone or in combination of two or more.
- the unsaturated olefin-based copolymer ( ⁇ ⁇ ⁇ ) and the unsaturated olefin-based copolymer ( ⁇ ') used in the present invention include copolymers other than the above-mentioned monomers. This monomer may be copolymerized as long as the object of the present invention is not impaired.
- Unsaturated olefin-based copolymer and ( ⁇ ') Unsaturated olefin-based copolymer are composed of a structural unit derived from ethylene (i) and a aromatic unit.
- Structural units derived from vinyl compound (ii) and non-conjugated polyene (iii) the structural units derived from (iii) are randomly arranged and linked, and (iii) have a branched structure caused by non-conjugated polyene, and the main chain has a substantially linear structure.
- a structural unit derived from coalesced or ethylene i
- a structural unit derived from an aromatic vinyl compound ii
- a structural unit derived from a non-conjugated polyene iii
- ⁇ having 3 or more carbon atoms.
- the structural units derived from the olefin (iv) are randomly arranged and linked, and (iii) have a branched structure caused by the non-conjugated polyene, and the main chain has a substantially linear structure.
- Copolymer The fact that the copolymer has a substantially linear structure and does not substantially contain a gel-like cross-linked polymer means that the copolymer is dissolved in an organic solvent and contains substantially no insoluble matter. This can be confirmed. For example, when the intrinsic viscosity [??] is measured, it can be confirmed by completely dissolving the copolymer in decalin at 135 ° C.
- the unsaturated olefin-based copolymer used in the rubber composition for tire side walls is composed of a structural unit derived from ethylene (i) and a single olefin having 3 or more carbon atoms.
- the molar ratio ((i) / (iv)) with the structural unit derived from (iv) is 100/0 to 40/60, preferably 95Z 5 to 55/45, more preferably. Or more preferably 90/10 to 60/40, more preferably in the range of ⁇ ⁇ ⁇ ⁇ , and a structural unit derived from ethylene (i) and a compound having 3 or more carbon atoms.
- Molar ratio between the total amount of the structural units derived from the olefin (iv) and the structural units derived from the aromatic vinyl compound (ii) Is 98/2 to 60/40, preferably 973-70 / P
- It is preferably in the range of 30, preferably 96 to 4 to 80/20.
- the molar ratio ((i) no (iv)) of the structural unit derived from ethylene (i) to the structural unit derived from hypoolefin (iv) having 3 or more carbon atoms is 95/5 or more.
- the tire sidewall obtained from the rubber composition for a tire sidewall of the present invention is excellent in low-temperature properties. If the proportion of the structural unit derived from the aromatic vinyl compound (ii) is less than the above range, the tire side wall obtained from the rubber composition for a tire side wall of the present invention will have scratch resistance, flex resistance, and resistance to bending. Vibration may be poor, aromatic vinyl compounds
- the strength characteristics, low-temperature characteristics, and the like may be inferior.
- the content ratio of the structural unit derived from (iii) is usually in the range of 0.01 to 30 mol%, preferably 0.05 to 25 mol%, more preferably 0.1 to 20 mol%. Is desirable.
- the iodine value of the unsaturated copolymer (A) is usually in the range of 10 to 50, preferably 15 to 40, and more preferably 20 to 35. Is desirable.
- (A) When the iodine value of the unsaturated olefin copolymer is within the above range, the rubber composition for tire side wheels has a high vulcanization rate, and the obtained tire side wheels have excellent heat resistance.
- the unsaturated olefin copolymer has an intrinsic viscosity [?] Measured in 135 ° C decalin, usually 1.0 to 6.0 dl / g, preferably 2.0 It should be in the range of ⁇ 5.5 dl / g, more preferably in the range of 3.0 ⁇ 5.0 dl / g.
- the intrinsic viscosity [7?] Of the unsaturated olefin-based copolymer is within the above range, (B) the kneadability with a gen-based rubber or the like is excellent, and the obtained tire sidewall has excellent strength characteristics. Excellent.
- the unsaturated olefin-based copolymer preferably has at least one of the molar ratio of each structural unit, intrinsic viscosity [?] And iodine value within the above range, More preferably, two or more are in the above-mentioned range, and particularly preferably, all of the molar ratio, intrinsic viscosity [?] And iodine value of each structural unit are in the above-mentioned range.
- the unsaturated olefin-based copolymer ( ⁇ ′) used in the rubber composition for tire tread is composed of a structural unit derived from ethylene (i) and a one-dimensional olefin (3 or more carbon atoms).
- the molar ratio of the structural unit derived from the haorirefin (iv) to the structural unit derived from the aromatic vinyl compound (ii) !: ⁇ (i) + (iv) ⁇ / (ii)] is 99/1 885/15, preferably 99 Z 1 990/10, particularly preferably 99Z 1 ⁇ 95 / 5.
- Structural units and carbon derived from ethylene (i) One-year-old Lev with 3 or more atoms
- the content of the non-conjugated polyene (iiii) in the unsaturated olefin copolymer ( ⁇ ') is 0.01 to 30 mol%, preferably 0.05 to 25 mol%, particularly preferably 0.1 to 0.1 mol%. It is desirable that the oxygen value be 1 to 50, preferably 3 to 50, and particularly preferably 5 to 40. This characteristic value is a standard value when vulcanizing the unsaturated olefin copolymer ( ⁇ ′) using zeolite or peroxide.
- the unsaturated conjugated copolymers (A) and ( ⁇ ′) may contain the non-conjugated polyene.
- the structural unit derived from Lien or Tetraene has a structure represented by the following general formula (IV-b).
- the unsaturated olefin-based copolymer (A) or ( ⁇ ') contains the non-conjugated polyene.
- the structural unit derived from Lien or Tetraene has a structure represented by the following general formula (Vb).
- the unsaturated olefin-based copolymers ( ⁇ ⁇ ⁇ ) and ( ⁇ ') as described above include (i) ethylene, (ii) an aromatic vinyl compound, and (iii) non- It can be obtained by copolymerizing a conjugated polystyrene and, if necessary, (iv) a one-year-old fin having 3 or more carbon atoms in the presence of an olefin polymerization catalyst.
- Examples of such an olefin polymerization catalyst include (a) a compound of a transition metal such as vanadium, zirconium, and titanium; (b) an organic aluminum compound (organic aluminum oxide compound); A catalyst comprising an ionized ionizable compound can be used. Specifically, (1) a titanium-based catalyst composed of a solid titanium catalyst component and an organic aluminum compound, (2) a vanadium-based catalyst composed of a soluble vanadium compound and an organic aluminum compound, and (3) selected from Group 4 of the periodic table. And a metallocene catalyst comprising an organoaluminoxy compound and a Z- or zwitterionic compound, and the like. Of these, a meta-mouth catalyst is particularly preferred. .
- Metacene catalysts have high activity, and the resulting unsaturated olefin-based copolymers (A) and ( ⁇ ') have narrow molecular weight distribution and composition distribution, and are furthermore aromatic vinyl compounds.
- the conversion of (ii) and non-conjugated polyene (iii) is also high.
- the solid titanium catalyst component is prepared by contacting a titanium compound, a magnesium compound, and an electron donor as described below.
- a trivalent titan compound or a tetravalent titan compound is used, and a tetravalent titan compound is preferable.
- the tetravalent titanium compound include a tetravalent titanium compound represented by T i (OR) ”X 4 —” (R is a hydrocarbon group, X is a halogen atom, and 0 ⁇ j ⁇ 4). Is mentioned.
- halogen-containing titanium compounds Preference is given, more particularly, tetrahalogenated titanium, especially titanium tetrachloride.
- the magnesium compound used for preparing the solid titanium catalyst component may be a magnesium compound having a reducing property or a magnesium compound having no reducing property.
- the magnesium compound having a reducing property include a magnesium compound having a magnesium'carbon bond and a magnesium'hydrogen bond.
- the magnesium compound having no reducing property a compound derived from the above-mentioned magnesium compound having reducing property, a compound derived at the time of preparing the catalyst component, or the like can be used.
- a complex compound, a complex compound of these magnesium compounds with other metals, or a mixture with other metal compounds can also be used. These magnesium compounds may be a mixture of two or more kinds.
- the magnesium compound a magnesium compound having no reducing property is preferred, and a halogen-containing magnesium compound is preferred, and magnesium chloride, alkoxy magnesium chloride and aryloxy magnesium chloride are particularly preferred.
- the electron donor used for the preparation of the component include organic carboxylic acid esters and polyvalent carboxylic acid esters.
- the solid titanium catalyst component includes the above-described titanium compound, magnesium compound ( Or metal magnesium) and an electron donor.
- a known method for preparing a highly active titanium catalyst component from a titanium compound, a magnesium compound and an electron donor can be employed.
- Elementary, Lin, Arminian The contact may be performed in the presence of another reaction reagent such as a system.
- organoaluminum compound forming the titanium-based catalyst a compound having at least one A 1 -carbon bond in the molecule can be used.
- a compound having at least one A 1 -carbon bond in the molecule for example, the following general formula ( i) an organic aluminum compound represented by
- R ′ and R 2 are a hydrocarbon group containing usually 1 to 15, preferably 1 to 4 carbon atoms, which may be the same or different.
- X is a halogen atom.
- M is Li, Na or K
- R 1 is the same as R 1 in the general formula (i).
- An electron donor can be used as needed for the preparation of the titanium catalyst.
- Examples of such an electron donor include an organic gay compound represented by the following general formula (iii) or (iv).
- R and R ' are hydrocarbon groups, and n is a number satisfying 0 ⁇ n ⁇ 4.
- R 1 is a cyclopentyl group or a cyclopentyl group having an alkyl group
- R 2 is an alkyl group
- R 3 is a hydrocarbon group
- m is a number satisfying 0 ⁇ m ⁇ 2.
- the cyclopentyl group having an alkyl group represented by R ′ includes 2-methylcyclopentyl, 3-methylcyclopentyl, 2-ethylcyclopentyl, and 2,3-dimethylcyclopentyl. Examples include a pentyl group.
- the catalyst component forming the titanium-based catalyst may be preliminarily polymerized with a one-year-old fin.
- the prepolymerization is preferably performed under mild conditions by adding the olefin and the above-mentioned catalyst components to an inert hydrocarbon medium. It may be the same as or different from the monoolefin used in the polymerization of the copolymer (A) or ( ⁇ ').
- Examples of the soluble vanadium compound forming the vanadium-based catalyst include a vanadium compound represented by the following general formula (V) or (vi).
- R is a hydrocarbon group and X is a halogen atom.
- a, b, c and d satisfy 0 ⁇ a ⁇ 3, 0 ⁇ b ⁇ 3, 2 ⁇ a + b ⁇ 3 0 ⁇ c ⁇ 4.0 ⁇ d ⁇ 4 and 3 ⁇ c + d ⁇ 4, respectively .
- the soluble vanadium compound an electron donor adduct of a soluble vanadium compound obtained by contacting an electron donor can also be used.
- the organic aluminum compound forming the vanadium-based catalyst the same organic aluminum compound forming the titanium-based catalyst can be used.
- the metallocene compound of a transition metal selected from Group 4 of the periodic table that forms a metallocene catalyst is specifically represented by the following formula (VI).
- M 1 is a transition metal selected from Group 4 of the periodic table, specifically, zirconium, titanium or hafnium.
- X represents a valence of the transition metal M 1, indicating the number of coordinating ligands L to the transition metal.
- L 1 is a ligand that coordinates to the transition metal, and at least one of these ligands L 1 is a ligand having a cyclopentagenenyl skeleton.
- the ligand having a cyclopentagenenyl skeleton may have a substituent.
- Examples of the ligand L having a cyclopentenyl skeleton include a cyclopentenyl group, a methylcyclopentagenenyl group, an ethylcyclopentenyl group, an n- or i-propylcyclopentenyl group, n-, i-, sec-, t-, butylcyclopentagenenyl, dimethylcyclopentagenenyl, methylpropylcyclopentenyl. Alkyl or cycloalkyl substitution such as methylbutylcyclopentenyl, methylbenzylcyclopentagenyl, etc.
- Cyclopentyl genenyl group further, indenyl group, 4,5,6,7-tetrahydroindenyl group, fluorenyl group and the like. Cyclopen Even Jeni
- the group having a skeleton may be substituted with a halogen atom or a trialkylsilyl group.
- two of the groups having the cyclopentenyl skeleton are ethylene, Alkylene group such as pyrene; substituted alkylene group such as isopropylidene, diphenylmethylene; substituted silylene group such as silylene group or dimethylsilylene group, diphenylsilylene group, methylphenylsilylene group; It may be bonded via a group or the like to form a bridge-type metallocene compound.
- Ligands other than those having a cyclopentene genenyl skeleton (ligands having no cyclopentene genenyl skeleton) L include a hydrocarbon group having 1 to 12 carbon atoms, an alkoxy group, an aryloxy group. group, a sulfonic acid-containing group (an S ⁇ 3 R e), a halogen atom or a hydrogen atom (here, R represents lay alkyl group, an alkyl group substituted with a halogen atom, ⁇ Li Lumpur group. or even halogen atoms Is an aryl group substituted with an alkyl group.) And the like.
- Examples of the hydrocarbon group having 1 to 12 carbon atoms of the ligand L include an alkyl group, a cycloalkyl group, an aryl group and an aralkyl group. More specifically, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, t-butyl, pentyl, hexyl Alkyl groups such as octyl, decyl and dodecyl groups; cycloalkyl groups such as cyclopentyl group and cyclohexyl group; aryl groups such as phenyl group and tolyl group; And an aralkyl group such as a neonyl group.
- Examples of the alkoxy group of the ligand L include a methoxy group, an ethoxy group, and an n-propoxy group.
- Examples of the aryloxy group include a phenoxy group.
- the sulfonic acid-containing group an S 0 3 R a), meta Nsuruhona preparative group, p- toluenesulfonyl Na preparative group, Application Benefits Furuoro meth Nsuruhona preparative group, p- etc. chlorobenzene sulfonyl Na preparative groups like al It is.
- Examples of the halogen atom include fluorine, chlorine, bromine, and iodine.
- the metallocene compound represented by the general formula (VI) is more specifically represented by the following general formula (VI ′).
- M is a transition metal of the general formula (VI)
- R 2 is a group (ligand) having a cyclobenzene genenyl skeleton
- R 3 , R 4 and R 5 are each independently Cyclopentyl is a group (ligand) with or without a genenyl skeleton.
- M 1 is zirconium and contains two ligands having a cyclopentene genenyl skeleton.
- metacene compound in which zirconium metal is replaced with titanium metal or hafnium metal in the above compounds can also be exemplified.
- bridge-type metallocene compound examples include a metallocene compound represented by the following formula [A].
- M 1 is a metal belonging to Group 4 of the periodic table, and specific examples include titanium, zirconium, and hafnium.
- R 1 and R 2 may be the same or different from each other, and Atom, 1 to 10 carbon atoms, preferably 1 to 3 alkyl groups, 1 to 10 carbon atoms, preferably 1 to 3 alkoxy groups, 6 to 10 carbon atoms, preferably 6 to 8 aryl groups, 6 to 10 carbon atoms, preferably 6 to 8 aryloxy groups, 2 to 10 carbon atoms, preferably 2 to 4 alkenyl groups, carbon atoms Number 7 to 40, preferably 7 to 10 arylalkyl groups, number of carbon atoms? To 40, preferably 7 to 12 alkylaryl groups, 8 to 40, preferably 8 to 12 arylalkenyl groups, or halogen atoms or chlorine atoms. .
- R 3 and R 4 may be the same or different from each other, and include a hydrogen atom, a halogen atom or preferably a fluorine atom, a chlorine atom or a bromine atom, a carbon atom which may be halogenated, and 1 to 10 carbon atoms.
- a hydrogen atom preferably a hydrogen atom, a halogen atom or preferably a fluorine atom, a chlorine atom or a bromine atom, a carbon atom which may be halogenated, and 1 to 10 carbon atoms.
- an alkyl group having 1 to 4 carbon atoms, 6 to 10 carbon atoms, preferably 6 to 8 carbon atoms, one NR '° 2 , —SR'.
- R 1 ⁇ is a halogen atom, preferably a chlorine atom, or a carbon atom number of 1 to 10; It is preferably an alkyl group having 1 to 3 carbon atoms, or an aryl group having 6 to 10 carbon atoms and preferably 6 to 8 carbon atoms.
- R 3 and R 4 are particularly preferably hydrogen atoms.
- R 5 and R 6 may be the same or different and are preferably the same, and have the meanings described for R 3 and R 4 , provided that R 5 and R 6 are not hydrogen atoms.
- R 5 and R 6 are preferably an optionally halogenated alkyl group having 1 to 4 carbon atoms, for example, a methyl group, an ethyl group, and a propyl group. Examples include an isopropyl group, a butyl group, an isobutyl group, and a trifluoromethyl group, and a methyl group is preferable.
- R 7 is selected from the group consisting of:
- M 2 is gay, germanium or tin, preferably gay or germanium.
- R 8 and R 9 may be the same or different and have the same meaning as described for R 11 .
- n and n may be the same or different and are 0, 1 or 2, preferably 0 or 1, and m 10 n is 0, 1 or 2. preferably 0 or 1 .
- meteorological sensors that satisfy the above conditions are shown in (i) to (iii) below.
- M 1 is Zr or Hf
- R 1 and R 2 are methyl groups or chlorine atoms
- R 5 and R 6 are methyl groups.
- R 8 R 9 , R ′ ° and R 12 have the above-mentioned meanings.
- the following compounds are particularly preferred.
- rac-dimethylsilylene-bis (2-ethyl-1-indenyl) zirconium dimethyl chloride For the production method of such a metal opening sensor, It can be manufactured by a conventionally known method (for example, see Japanese Patent Application Laid-Open No. HEI 4-26863).
- a transition metal compound (metacene sen compound) represented by the following formula [B] can also be used as the bridge-type metallocene compound.
- M 1 represents a transition metal atom of Group 4 of the periodic table, specifically, titanium, zirconium, or hafnium.
- R 1 and R 2 are each independently a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group having 1 to 20 carbon atoms, , An oxygen-containing group, an oxygen-containing group, a nitrogen-containing group, or a phosphorus-containing group.
- Halogen atoms such as fluorine, chlorine, bromine and iodine
- alkyl groups such as octyl, nonyl, dodecyl, iconosyl
- hydrocarbon groups halogenated hydrocarbon groups in which the above hydrocarbon groups have been substituted by halogen atoms, monohydrocarbon-substituted silyl such as methylsilyl, phenylsilyl, dimethylsilyl, diphenyl Dihydrocarbon-substituted silyls such as nilsilyl, trimethylsilyl, triethylsilanol, trip-mouth pilsilyl, tricyclohexylsilyl, triphenylsilyl Trimethylsilyl, methyldiphenylsilyl, methyldiphenylsilyl, tritrinoresilyl, trinaphthylsilyl, etc.
- monohydrocarbon-substituted silyl such as methylsilyl, phenylsilyl, dimethylsilyl, diphenyl
- Dihydrocarbon-substituted silyls such as nilsilyl, trimethylsilyl, trie
- Silyl ethers of hydrocarbon-substituted silyls such as ethers, gayl-substituted alkyl groups such as trimethylsilylmethyl, gayl-substituted aryl groups such as trimethylsilyl xyl, etc. Gay-containing group;
- Alkoxy groups such as hydroxy, methoxy, ethoxy, propoxy, and butoxy, phenyl, phenyl, methoxy, methyloxy, dimethyloxy, phenylethoxy, phenylmethoxy, phenylethoxy, etc.
- An oxygen-containing group such as an arylalkoxy group such as enylethoxy; an oxygen-containing group such as a substituent in which the oxygen of the oxygen-containing group has been substituted with oxygen;
- Alkyl amino groups such as amino groups, methylamino, dimethylamino, getylamino, dipropylamino, dibutylamino, dicyclohexylamino, phenylamino, diphenylamino, etc.
- Nitrogen-containing groups such as arylamino groups or alkylarylamino groups such as amino, ditriamino, dinaphthylamino, methylphenylamino, etc .; It is a phosphorus-containing group such as a phosphino group such as dimethylphosphino or diphenylphosphino.
- R 1 is preferably a hydrocarbon group, particularly preferably a hydrocarbon group having 1 to 3 carbon atoms in methyl, ethyl and propyl.
- R 2 is preferably hydrogen or a hydrocarbon group, particularly preferably hydrogen or a hydrocarbon group having 1 to 3 carbon atoms in methyl, ethyl or propyl.
- R 3, R 4, R 5 and R e are each independently a hydrogen atom, Nono androgenic atom, a hydrocarbon group having 1 to 2 0 carbon atoms, a halogenated hydrocarbon is a C 1 -C 2 0 And preferably a hydrogen, a hydrocarbon group or a halogenated hydrocarbon group.
- the groups other than the groups forming the aromatic ring may be bonded to each other to form a ring.
- R 6 is a substituent other than an aromatic group, it is preferably a hydrogen atom.
- the halogen atom the hydrocarbon group having 1 to 20 carbon atoms, and the halogenated carbon to hydride group having 1 to 20 carbon atoms, specifically, the same as the above R 1 and R 2 The group can be exemplified.
- R 3 and R 4, R 4 and R 5, R 5 and set even rather small of R 6 contains a monocyclic aromatic ring formed by bonding to a physician each other, coordinated coordinated to M 1
- the children are as shown below.
- the aromatic ring may be substituted with a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a halogenated hydrocarbon group having 1 to 20 carbon atoms.
- Halogen atoms substituted on the aromatic ring a hydrocarbon group having a carbon number of 1-2 0, as the halogenated hydrocarbon group having 1 to 2 0 carbon atoms, wherein R 'and R 2 the same group Can be exemplified.
- X 1 and X 2 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group having 1 to 20 carbon atoms, an oxygen-containing group, Represents a zeo-containing group, specifically,
- Examples of the same halogen atom as R 1 and R 2 include a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group having 1 to 20 carbon atoms, and an oxygen-containing group.
- Examples of the thio-containing group include the same groups as those described above for R 1 and R 2 , methyl sulfonate, trifluoromethan sulfonate and phenylsulfonate.
- Y is a divalent hydrocarbon group having 1 to 20 carbon atoms, a divalent halogenated hydrocarbon group having 1 to 20 carbon atoms, a divalent gayne-containing group, and a divalent germanium-containing group, a divalent tin-containing group, one O-, - CO-, one S -, - SO -, - S 02 one, - NR 7 -, one P (R 7) -, - P ( ⁇ ) (R 7 ) —, — BR 7 — or one A 1 R 7 — [where R 7 is a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a carbon atom having 1 to 20 carbon atoms.
- Halogenated hydrocarbon group specifically, methylene, dimethylethylene, 1,2-ethylene, dimethyl-1,2-ethylene, 1.3-trimethylene.
- Alkylene groups such as len, 1.4-tetramethylene, 1,2-cyclohexylene, 1,4-cyclohexylene, diphenylmethylene, diphenyl- 1,2-Ethylene and other arylalkylene groups Any divalent hydrocarbon group having a carbon number of 1 to 2 0;
- a divalent germanium-containing group obtained by substituting germanium for the divalent gayne-containing group with germanium;
- R 7 is a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a halogenated hydrocarbon group having 1 to 20 carbon atoms, similar to R ′ and R 2 .
- a divalent gayne-containing group a divalent germanium-containing group, a divalent tin-containing group, and more preferably a divalent gayne-containing group.
- alkyl silylene, alkylaryl silylene, and aryl silylene are particularly preferred.
- transition metal compound represented by the above formula [B] Specific examples of the transition metal compound represented by the above formula [B] are shown below.
- a transition metal compound in which zirconium metal is replaced with titanium metal or hafnium metal in the above compounds may be used.
- the transition metal compound is generally used as a racemic body as a catalyst component for the polymerization of an olefin, but may be an R-type or S-type. Coordination of an indene derivative of such a transition metal compound Can be synthesized, for example, by the following reaction route using ordinary organic synthesis techniques.
- the transition metal compound used in the present invention can be synthesized from these indene derivatives by a known method, for example, a method described in Japanese Patent Application Laid-Open No. 428,073.
- a transition metal compound represented by the following formula [C] can also be used as the bridge-type metallocene compound.
- R 3 , R 4 , R 5 and R 6 two groups including R 3 are preferably alkyl groups, and R 3 and R 5 or R 3 and R 6 are alkyl groups. I prefer that there be.
- This alkyl group is preferably a secondary or tertiary alkyl group.
- the alkyl group may be substituted with a halogen atom or a gayne-containing group. Examples of the halogen atom or the gayne-containing group include the substituents exemplified for R 1 and R 2 . O
- the group other than the alkyl group is preferably a 7k element.
- Hydrocarbon groups having 1 to 20 carbon atoms include methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, sec-butyl, tert-butyl, pentyl and Linear and branched alkyl groups and cyclic alkyl groups such as xyl, cyclohexyl, heptyl, octyl, nonyl, dodecyl, iconosyl, norbornyl, and adamantyl; benzyl, phenylethyl, phenylpropyl, trimethyl, etc. And an arylalkyl group, which may contain a double bond or a triple bond.
- Two groups selected from R 3 , R 4 , R 5 and R 6 may be bonded to each other to form a monocyclic or polycyclic ring other than an aromatic ring.
- halogen atom examples include the same groups as those described above for R 1 and R 2 .
- X 1 , X 2 , Y and R 7 are the same as those in the above formula [B].
- metasene compound represented by the above formula [C] are shown below.
- a transition metal compound in which zirconium metal is replaced with titanium metal or hafnium metal in the above compounds may be used.
- the above transition metal compound is usually used as a racemic body, but may be of the R type or the S type.
- Such an indene derivative ligand of a transition metal compound can be synthesized, for example, by the same reaction route as described above, using an ordinary organic synthesis technique.
- the transition metal compound (metacene compound) represented by the above formula [C] can be prepared from these indene derivatives by a known method, for example, a method described in Japanese Patent Application Laid-Open No. 4-268307. Can be synthesized by In the present invention, a transition metal compound (metacene compound) represented by the following formula [D] can also be used as a pledge-type metallocene compound.
- M 1 , R 1 , X 1 , X 2 and Y include the same as those in the above formula [B] or the above formula [C].
- R 1 is preferably a hydrocarbon group, particularly preferably a hydrocarbon group having 1 to 4 carbon atoms such as methyl, ethyl, propyl and butyl.
- X 1 and X 2 are preferably a halogen atom or a hydrocarbon group having 1 to 20 carbon atoms.
- R 2 represents an aryl group having 6 to 16 carbon atoms, specifically, phenyl, para-naphthyl, ⁇ -decyl, anthryl, phenanthryl , Pyrenyl, acenaphthyl, pentanenyl (perinaphthenyl) and acetylanthrenyl. Of these, phenyl and naphthyl are preferred.
- transition metal compound metalacene compound represented by the above formula [D] are shown below.
- a transition metal compound in which zirconium metal is replaced with titanium metal or hafnium metal in the above compounds can be used.
- Such a transition metal compound represented by the formula [D] is prepared according to Journal of Organometallic Chem. 288 (1985), pp. 63-67, European Patent Application Publication No. 0,320,762 and Examples. For example, it can be manufactured as follows. ZYZ
- R a X wherein Z represents Cl, Br, I, o-tosyl group,
- Such a transition metal compound [D] is usually used as a racemic body, but an R-form or an S-form can also be used. Further, in the present invention, a transition metal compound represented by the following general formula (VII) may be used as the meta-mouth compound.
- M 3 is a metal of Group 4 or the lanthanide series of the periodic table
- L 2 is a derivative of the delocalized 7 ⁇ binding group, which imparts a constrained geometry to the metal M 3 active site,
- Xs may be the same or different and are each a hydrogen atom or a halogen atom, or a hydrocarbon group containing not more than 20 carbon atoms, a gayne atom or a germanium atom, a silyl group Or a germyl group.
- a transition metal compound represented by the following general formula (vir) is preferable.
- ⁇ 3 is titanium, zirconium or hafnium, and X is the same as above.
- C p is a substituted cyclopentenone evening Jeniru group having 7 ⁇ bound and, and substituent Z in Micromax 3.
- Z is oxygen, zeolite, boron or an element of group 14 of the periodic table (such as silicon, germanium or tin),
- Y is a ligand containing nitrogen, phosphorus, oxygen or zeolite
- Z and Y may form a fused ring.
- Specific examples of the compound represented by the general formula (vir) include:
- metallocene compounds can be used alone or in combination of two or more.
- metasene compound represented by the general formula (VII) or ( ⁇ ′) a compound having a central metal atom of titanium is preferable.
- the meta-cene compound represented by the general formula (VII) or (vir) is particularly preferred as the meta-cene compound.
- metacene compound can be used by being supported on a particulate carrier.
- Is in such a granular carrier S i 0 2, A 1 2 03 B 2 0 3, Mg O, Z r ⁇ 2, C A_ ⁇ , T i ⁇ 2, Z N_ ⁇ , S N_ ⁇ 2 , Ba ⁇ , Th and other inorganic carriers, and organic carriers such as polyethylene, polypropylene, poly-1-butene, poly-4-methyl-1-pentene, styrene-divinylbenzene copolymer, etc. Can be used.
- These particulate supports can be used alone or in combination of two or more.
- the organic aluminum nitroxide compound may be a conventionally known aluminoxane, and is exemplified in JP-A-2-76867. It may be a benzene-insoluble organic aluminum oxide compound as described above.
- R represents a hydrocarbon group such as a methyl group, an ethyl group, a propyl group, and a butyl group, and is preferably a methyl group, an ethyl group, and particularly preferably a methyl group.
- n is an integer of 2 or more, preferably an integer of 5 to 40.
- the organoaluminoxy compound may contain a small amount of an organic compound component of a metal other than aluminum.
- ionized ionic compound examples include Lewis acids, ionic compounds, borane compounds and carborane compounds.
- BR 3 As the Louis acid, BR 3 (where R is a fluorine atom, a methyl group, It is a phenyl group or a fluorine atom which may have a substituent such as a trifluoromethyl group.
- tolfluoroborone triphenylborone, tris (4-fluorophenyl) borone, tris (3,5-difluorophenyl) borone, tris ( 4-Fluoromethylphenyl) Boron, Tris (Pennofluor phenyl) boron, Tris (p-tril) boron, Tris (0-tril) boro Ionic compounds include trialkyl-substituted ammonium salts, N, N-dialkylanilinium salts, and dialkylammonium salts. And salts of triarylphosphonium.
- trialkyl-substituted ammonium salts include, for example, triethylammonium tetra (phenyl) borane, tripropylammonium tetra (phenyl) boron, and tri (n-butyl) ammonium salt. And tiger (phenyl) boron.
- dialkyl ammonium salt include di (1-propyl) ammonium tetra (pentafluorophenyl) boron, dicyclohexyl ammonium nitr tetra (fuunil) boron, and the like.
- triphenylcarbenyl thrakis (pentafluorophenyl) borate, ⁇ , ⁇ -dimethylanilinium thraki (pentachlorofluorophenyl) borate, and ferrocenedimethytra (penyu) (Fluorophenyl) borate and the like.
- borane compounds examples include decaborane (14), bis [tri ( ⁇ -butyl) ammonium] nonaborate, and bis [tri ( ⁇ -butyl) amino.
- Examples of the power-borane compounds include 4-power-lubanonaborane (14), 1,3-dicarpanona- borane (13), and bis [tri (n-butyl) ammonium] bis (indecahydride) 7-Carpound decarborate) Salts of metal carbananion such as nickel salt (IV).
- the above-mentioned ionized ionic compounds can be used alone or in combination of two or more.
- the above-mentioned organic aluminum compound or ionized ionic compound can be used by being supported on the above-mentioned particulate carrier.
- an organic aluminum compound similar to the organic aluminum compound forming the titanium-based catalyst may be used together with the organic aluminum oxy compound or the ionized ionic compound.
- the unsaturated olefin copolymers (A) and ( ⁇ ′) used in the present invention can be obtained by (i) ethylene, (ii) aromatic vinyl in the presence of the above-mentioned catalyst for olefin polymerization. It is obtained by copolymerizing the compound and (iii) a non-conjugated polyene and, if necessary, (iv) Hi-ichi Refine, usually in a liquid phase. In this case, a hydrocarbon medium is generally used, but a Hi-Shi Refin may be used as the medium. Copolymerization can be carried out by either a batch method or a continuous method. In carrying out the copolymerization by a batch method, the catalyst is used in the following concentration.
- the solid titanium catalyst component is converted to titanium atoms per liter of polymerization volume. It is usually used in an amount of about 0.001 to about 1.0 millimol, preferably about 0.005 to 0.5 millimol.
- the organoaluminum compound is usually about 10 to 500 moles, preferably 2 moles, as a metal atom in the organic aluminum compound, relative to 1 mole of the titanium atom in the solid titanium catalyst component. It is used in an amount such that it becomes 0 to 200 mol.
- an electron donor When an electron donor is used, it is usually about 0.01 to 10 mol, preferably 0.01 to 2 mol, particularly preferably 0 to 1 mol, per mol of metal atom in the organic aluminum compound. It is used in such an amount that it becomes .05 to 1 mol.
- the concentration of the soluble vanadium compound in the polymerization system is usually 0.01 to 5 ml per liter of polymerization volume. It is preferably in the range of 0.05 to 3 millimoles.
- the soluble vanadium compound may be supplied at a concentration of 10 times or less, preferably up to 7 times, more preferably 1 to 5 times the concentration of the soluble vanadium compound present in the polymerization system. Desirable.
- the organoaluminum compound has a molar ratio of aluminum atom to vanadium atom (A 1 / V) in the polymerization system of 2 or more, preferably 2 to 50, and more preferably 3 to 20. Supplied in quantity.
- the soluble vanadium compound and the organic aluminum compound are usually supplied after being diluted with the above-mentioned hydrocarbon solvent and Z or liquid ethylene, Hichiseki refine and non-conjugated polyene. At this time, It is desirable that the sodium compound is diluted to the above concentration, but the organic aluminum compound is supplied to the polymerization system after being adjusted to an arbitrary concentration of, for example, 50 times or less the concentration in the polymerization system. Is desirable,
- the concentration of the methacrylate compound in the polymerization system is usually from 0.0005 to 0.1 millimol per liter of polymerization volume. It is preferably used in an amount of 0.0001 to 0.05 millimol.
- the organoaluminoxy compound has a molar ratio (A 1 / M) of an aluminum atom (A 1) to a transition metal atom (M) in a metallocene compound, and is preferably from 1 to 1000, preferably It is used in such an amount that it becomes 10 to 500.
- the ionized ionic compound is in a molar ratio of the ionized ionic compound to the metallocene compound (ionized ionic compound Z metallocene compound) in the range of 0.5 to 20, preferably 1 to 10 It is used in such an amount that
- an organic aluminum compound When used, it is used in an amount such that it is usually about 0 to 5 mmol, preferably about 0 to 2 mmol per liter of polymerization volume.
- the temperature of the copolymerization reaction is usually between 120 and 150 ° C, preferably between 0 and 120 ° C, and more preferably between 0 and 100 ° C, and the pressure exceeds 0.
- the test is carried out under a condition of 8 MPa (80 kgf / cm 2 , gauge pressure) or less, preferably more than 0 and 4.9 MPa (50 kgf / cm 2 , gauge pressure).
- the polymerization reaction is usually carried out at a temperature of from 120 to 150 ° C, preferably from 0 to 120 ° C, more preferably from 0 to 100 ° C, and a pressure exceeding 0 to 80 ° C. It is carried out under conditions in the range of kg / cm 2 , preferably more than 0 and 50 kg / cm 2 .
- copolymer (A) or ( ⁇ ') is usually obtained as a polymerization solution containing the same.
- This polymerization solution is treated in a conventional manner to obtain an unsaturated olefin copolymer or ( ⁇ '). It is.
- gen-based rubber As the gen-based rubber, conventionally known gen-based rubbers are used. Specifically, natural rubber (NR), isoprene rubber (IR), styrene-butadiene rubber (SBR), butadiene rubber ( BR), chloroprene rubber (CR), acrylonitrile-butadiene rubber (NBR) and the like.
- natural rubber NR
- isoprene rubber IR
- SBR styrene-butadiene rubber
- BR butadiene rubber
- CR chloroprene rubber
- NBR acrylonitrile-butadiene rubber
- natural rubber natural rubber standardized by Green Book (international alpha-quality packaging standard for various grades of natural rubber) is generally used. Also, as isoprene rubber, the specific gravity is 0.91 to 0.94. Yes, isoprene rubber having a viscosity of [ML 4 (100 ° C.)] of 30 to 120 is generally used.
- styrene-butadiene rubber a styrene-butadiene rubber having a specific gravity of 0.91 to 0.98 and a Mooney viscosity [ML] +4 (100 ° C) of 20 to 120 is used. Is generally used.
- butadiene rubber a specific gravity of 0.90 to 0.95, ⁇ twelve - viscosity [ML, + 4 (1 0 0 ° C)] 2 0-1 2-butadiene rubber is 0 is generally used.
- These gen-based rubbers can be used alone or in combination of two or more.
- isoprene-based rubber having a good balance of mechanical strength that is, natural rubber or isoprene rubber is preferably used.
- Carbon black (C) Carbon black (C)
- the carbon black is not particularly limited as long as it is a carbon black normally used for tire side walls.
- SRF, GPF, FEF, HAF, ISAF, Examples include strong blacks such as SAF, FT, and T.
- vulcanizing agent (D) examples include zeolites and zeolite compounds.
- zeolites include powdered yoke, sedimentation yoke, colloidal yoke, surface-treated yeolite, and insoluble yeolite. .
- thio compound examples include thio chloride, dichloride, and high molecular weight polysulfide.
- thio compounds which release active zeolite at the vulcanization temperature and vulcanize such as morpholine disulfide, alkylphenol disulfide, tetramethylthiuram disulfide, dipentamethylenthiuramute trasulfide, dimethyldithiothine Rubamic acid selenium and the like can also be used.
- powdered iron is preferably used.
- Organic peroxides can also be used as the vulcanizing agent (D).
- organic peroxides include dicumyl peroxide, di-tert-butylperoxide, and di-tert. -Butylperoxy-3,3,5-trimethylcyclohexane, tert-butyldicumylperoxide, di-tert-amylperoxide, 2,5-dimethyl-2,5-di- (tert-butylperoxy) Hexin-3,2,5-dimethyl-2,5-di- (benzoylperoxy) hexane, 2,5-dimethyl-2,5-di- (tert-butylperoxy) hexane, — Bis (tert-butylperoxy-m-isopropyl) Benzene, alkyl peroxide such as tert-butyl hydroperoxide Tert-butylperoxyacetate, tert-butylperoxysobuty
- organic peroxides having a one-minute half-life temperature of 130 to 200 ° C are preferred, and specifically, dicumyl veloxide and di-tert-butyl peroxide. And di-tert-butylperoxy-3,3,5-trimethylcyclohexane, tert-butyldicumylperoxide, di-tert-amylperoxide, tert-butylhydroperoxide and the like.
- the use of Yeo or Yeo type compounds, particularly Yeo makes it possible to obtain a rubber composition for tire side walls having excellent properties. I like it.
- the rubber composition for a tire sidewall comprises (A) an unsaturated olefin-based copolymer and (B) a gen-based rubber as described above.- If necessary, (C) a carbon black and It contains Z or (D) vulcanizing agent.
- the weight ratio [(A) Z (B)] of (A) the unsaturated olefin-based copolymer and (B) the gen-based rubber is 20/80 to 80/2. 0, preferably 20/80-70/30, more preferably 2 It is desirable to be in the range of 0/80 to 60/40.
- the amount of (C) nylon black is usually based on 100 parts by weight of the total amount of (A) unsaturated unsaturated copolymer and (B) diene rubber.
- the vulcanizing agent is a zeolite or a zeolite compound
- the vulcanizing agent is based on 100 parts by weight of the total amount of (A) the unsaturated olefin copolymer and (B) the diene rubber. Usually 0.1 to 10 parts by weight, preferably
- the vulcanizing agent is an organic peroxide
- it is usually used based on 100 parts by weight of the total amount of (A) the unsaturated olefin copolymer and (B) the gen-based rubber. It is used in a proportion of 0.05 to 15 parts by weight, preferably 0.15 to 5 parts by weight.
- the rubber composition for a tire sidewall comprises (A) an unsaturated unsaturated copolymer, (B) a gen-based rubber, (C) a carbon black, and (D) a vulcanizing agent. It can be produced by employing a known rubbery polymer mixing method, such as a mixing method using a mixer such as a Banbury mixer. In the present invention, At the time of addition, various compounding agents conventionally used as rubber compounding agents can be used in addition to the above components, as long as the object of the present invention is not impaired.
- Examples of such a rubber compounding agent include: a softening agent; a rubber reinforcing agent such as finely divided gay acid; a filler such as light calcium carbonate, heavy calcium carbonate, talc, clay, syrup; a tackifier; Wax; binding resin; zinc oxide antioxidant; ozone crack inhibitor; processing aid and vulcanization accelerator. These compounding agents can be used alone or in combination of two or more.
- a softening agent As a softening agent, a softening agent conventionally compounded in rubber is widely used, and specifically, process oils, lubricating oils, paraffins, liquid paraffins, petroleum gaseous phases, and petrolatums
- Petroleum softeners such as coal tar; coal tar softeners such as coal tar pitch; castor oil, linseed oil, nayu oil, coconut oil and other fatty oil softeners; tall oil sub; beeswax; Waxes such as carnauba wax and lanolin; fatty acids and fatty acid salts such as ricinoleic acid, palmitic acid, barium stearate, calcium stearate, and zinc laurate; petroleum resins, Synthetic polymer substances such as atactic polypropylene and coumarone-indene resin can be mentioned.
- petroleum softeners are preferably used, and process oil is particularly preferably used.
- the mixing amount of these softeners is usually 150 parts by weight or less based on 100 parts by weight of the total amount of the unsaturated olefin copolymer (A) and the gen-based rubber (B). Is less than 100 parts by weight.
- vulcanization accelerator examples include N-cyclohexyl-2-benzothia Sulfane amides such as zolesulfenamide (CBS), N-oxydiethylene-2-benzo-azothiazolsulfenamide ( ⁇ BS), N, N-diisopropyl-2 -benzothiazolsulfenamide Compound;
- CBS zolesulfenamide
- ⁇ BS N-oxydiethylene-2-benzo-azothiazolsulfenamide
- ⁇ BS N-diisopropyl-2 -benzothiazolsulfenamide Compound
- Guanidine compounds such as diphenylguanidine, triphenylguanidine, diorthonitrileguanidine, orthonitrile guanide, diphenylguanidine phthalate;
- Aldehyde aldehydes or aldehyde amide compounds such as acetylaldehyde aniline reactants, butyl aldehyde-aniline condensates, hexamethylene tetraamine, acetyl aldehyde and the like;
- Imidazoline-based compounds such as 2-mercaptoimidazoline
- Thiourea-based compounds such as thiocarbanilide, getyl thiourea, dibutyl thiourea, trimethyl thiourea, and diortho trithiourea;
- TMTM Tetramethylthiuram monosulfide
- TMTD Tetramethyl thiuram disulfide
- DPTT Dipentamethylentrauram Thiuram-based compounds such as amide
- Dimethylditi talent rubamic acid Jethylditi talent rubamic acid
- Zinc zinc di-n-butyldithiolbamate, zinc ethylethyldicarbamate, zinc butyldiethylcarbamate zinc, sodium dimethyldithiocarbamate, dimethyldithiolrubamate
- Dithioate-based compounds such as selenium acid, dimethyldithiol, and tellurium tellurate;
- Xanthate compounds such as zinc dibutylxanthate
- vulcanization accelerators are used in an amount of 0.1 to 20 parts by weight, based on a total amount of 100 parts by weight of the unsaturated olefin-based copolymer (A) and the gen-based rubber (B). It is preferably used in an amount of 0.2 to 10 parts by weight.
- the vulcanized rubber composition prepared as described above is molded into an intended shape and then vulcanized. Should be performed.
- the method for producing the vulcanized rubber is not particularly limited, but specifically, for example, the following method is employed.
- the unvulcanized compounded rubber prepared in this way is used as an extruder, calendar roll, Or by pressing into the desired shape and heating at the temperature of 150 to 200 ° C for 5 to 60 minutes at the same time as the molding, or introducing the molded product into the vulcanization tank, Vulcanized rubber is obtained by heating at a temperature of up to 200 ° C for 5 to 60 minutes.
- Vulcanization may be performed in a mold or without a mold. If a mold is not used, the molding and vulcanization processes are usually performed continuously.
- a heating method in the vulcanization tank a heating tank such as hot air, a fluidized bed of glass beads, UHF (ultra-high frequency electromagnetic wave), or steam can be used.
- the vulcanized rubber thus obtained is excellent in heat resistance, weather resistance and dynamic fatigue resistance, and is also excellent in vibration damping, vibration damping and strength properties.
- a rubber composition for tire treads is excellent in heat resistance, weather resistance and dynamic fatigue resistance, and is also excellent in vibration damping, vibration damping and strength properties.
- the rubber composition for a tire tread according to the present invention comprises the above ( ⁇ ′) unsaturated olefin-based copolymer and ( ⁇ ) a gen-based rubber,
- the unsaturated olefin copolymer ( ⁇ ′) is modified by graft polymerization of a polar monomer to the unsaturated olefin copolymer ( ⁇ ′). Can also be used.
- the graft-modified unsaturated olefin-based copolymer (') (hereinafter sometimes referred to as a graph-modified unsaturated olefin-based copolymer ( ⁇ ')) It can be obtained by reacting an unsaturated olefin copolymer ( ⁇ ′) with a polar monomer in the presence or absence of a radical initiator.
- a polar monomer include a hydroxyl group-containing ethylenically unsaturated compound, an amino group-containing ethylenically unsaturated compound, an epoxy group-containing ethylenically unsaturated compound, an unsaturated carboxylic acid or a derivative thereof, and a vinyl ester.
- Ter compounds and butyl chloride are examples of the polar monomer.
- hydroxyl group-containing ethylenically unsaturated compound examples include hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, and 3-hydroxypropyl (meth) acrylate. Crylate, 2-hydroxy-3-phenoxypropyl (meta) acrylate, 3-chloro-2-hydroxypropyl (meta) acrylate, glycerol Mono (meta) acrylate, Penyu erythritol Mono (meta) acrylate, trimethylolprono.
- the amino group-containing ethylenically unsaturated compound is a compound having an ethylenic double bond and an amino group.
- examples of such a compound include vinyl monomers having at least one kind of an amino group or a substituted amino group represented by the following general formula.
- R 1 is a hydrogen atom, a methyl group or an ethyl group
- R 2 is a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, preferably an alkyl group having 1 to 8 carbon atoms, or a carbon atom having 6 to 12 carbon atoms, preferably properly is a cycloalkyl group.
- 6 to 8 c Note the above alkyl group, a cycloalkyl group may have a substituent.
- an amino-containing ethylenically unsaturated compound examples include (meth) aminoethyl acrylate, (meth) propylaminoethyl acrylate, and methylacrylate.
- Acrylic acid or methyl acetate such as dimethylaminoethyl methacrylate, aminopropyl (meth) acrylate, phenylaminoethyl methacrylate, and cyclohexylaminoethyl methacrylate
- Alkyl ester derivatives of acrylic acid vinylamine derivatives such as N-vinyl getyl amine and N-acetyl vinyl amine arylamine, methacrylamine, N-methyl alcohol
- Arylamine derivatives such as lylamin, N, N-dimethylacrylamide, and N, N-dimethylaminopropylacrylamine
- acrylamide and N-methylamine Amyl styremic derivatives such as tilacrylamide
- Aminostyrens such as
- the epoxy group-containing ethylenically unsaturated compound is a monomer having at least one polymerizable unsaturated bond and at least one epoxy group in one molecule.
- Such an epoxy group-containing ethylenically unsaturated compound Specifically, glycidyl acrylate, glycidyl methacrylate, etc .; mono- and diglycidyl esters of maleic acid, mono- and diglycidyl esters of fumaric acid, mono- and diglycidyl esters of crotonic acid Diglycidyl ester, mono- and diglycidyl esters of tetrahydrofuroic acid, mono- and glycidyl esters of itaconic acid, mono- and diglycidyl esters of butenetricarboxylic acid, mono- and diglycidyl esters of citraconic acid esters; E emission de - cis - bicyclo [2.2.1] hept - 5-E down - 2, 3-
- unsaturated carboxylic acid examples include acrylic acid, methacrylic acid, maleic acid, fumaric acid, tetrahydrofuroic acid, itaconic acid, citraconic acid, and crotonic acid. Tonic acid, isocrotonic acid, norbornene dicarboxylic acid. Unsaturated rubonic acid such as bicyclo [2.2.1] hept-2-ene-5,6-dicarboxylic acid, or a combination thereof Acid anhydrides and derivatives thereof (eg, acid halides, amides, imides, esters, etc.), and the like. Specific examples include maleyl chloride, maleilimide, anhydrous maleic chloride.
- vinyl ester compound examples include vinyl acetate, vinyl propionate, n-butyl butyrate, vinyl isobutyrate, vinyl bivalate, turnip vinyl acetate, vinyl versatate, and vinyl laurate.
- the polar monomer used for the modification is usually 0.1 to 100 parts by weight, preferably 0.5 part by weight, based on 100 parts by weight of the unsaturated olefin copolymer ( ⁇ '). Used in amounts of up to 80 parts by weight.
- radical initiator used for the modification examples include an organic peroxide and an azo compound.
- organic peroxides include dicumyl peroxy. , Di-1-butylperoxide, 2,5-dimethyl-2,5-bis (t-butylperoxy) hexane, 2,5-dimethyl-2,5-bis (t-butylperoxy) hexine-3 , 1,3-bis (t-butylperoxyisopropyl) benzene, 1,1-bis (t-butylperoxy) phenolate, benzoylperoxide, t_butylperoxybenzoate, acetylperoxy De, isobutyryl peroxide, okyl peroxide, decanol peroxide, lauroyl veloxide, 3,5,5-trimethylhexyl ylperoxide, 2,4-dichlorobenzoyl peroxide And x-yl and m-toluyl beloxide.
- the azo compound include azoisobutyronitrile, di
- Such a radical initiator is generally used in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the unsaturated olefin copolymer (A '). Is desirable.
- the radical initiator can be used as it is in the form of a mixture with an unsaturated olefin copolymer ( ⁇ ') and a polar monomer.However, the radical initiator can be used by dissolving it in a small amount of an organic solvent.
- an organic solvent any organic solvent capable of dissolving a radical initiator can be used without any particular limitation.
- organic solvents examples include aromatic hydrocarbon solvents such as benzene, toluene and xylene; aliphatic hydrocarbon solvents such as pentane, hexane, heptane, octane, nonane and decane; Alicyclic hydrocarbon solvents such as cyclohexane, methylcyclohexane and decahydronaphthalene; chlorobenzene, dichlorobenzene, trichlorobenzene Chlorinated hydrocarbons such as methane, methylene chloride, chloroform, carbon tetrachloride and tetrachloroethylene; methanol, ethanol, n-propanol, iso-pronool, n- Alcohol solvents such as butanol, sec-butanol and tert-butanol; ketone solvents such as acetone, methylethylketone and methylisobutylketone; Ester solvent
- reducing substances include iron (II) ion, chromium ion, cobalt ion, nickel ion, palladium ion, sulfite, hydroxysilamine, hydrazine, etc., as well as SH, S03H,- Compounds containing groups such as NHN H 2 , 1 C ⁇ CH (OH) and the like o
- reducing substances include ferrous chloride, potassium bichromate, cobalt chloride, cobalt naphthenate, palladium chloride, ethanolamine, and ethanolamine. , ⁇ , ⁇ -dimethylaniline, hydrazine, ethyl mercaptan, benzenesulfonic acid, ⁇ -toluenesulfonic acid and the like.
- the reducing substance is usually used in an amount of 0.01 to 5 parts by weight, preferably 0.1 to 3 parts by weight, per 100 parts by weight of the unsaturated olefin copolymer ( ⁇ '). Used in parts by weight.
- the graft modification of the unsaturated olefin-based copolymer ( ⁇ ') can be performed by a known method.
- the unsaturated olefin-based copolymer ( ⁇ ') is dissolved in an organic solvent. Then, polar monomers and radical initiators are added to the solution, and at a temperature of 70 to 200 ° C, preferably 80 to 190 ° C, for 0.5 to 15 hours, preferably. Alternatively, the reaction is carried out for 1 to 10 hours.
- organic solvent used when the unsaturated olefin-based copolymer ( ⁇ ') is graphitized examples include organic solvents that can dissolve the unsaturated olefin-based copolymer ( ⁇ '). If used, it can be used without any particular limitation.
- organic solvent examples include aromatic hydrocarbon solvents such as benzene, toluene, and xylene, and aliphatic hydrocarbon solvents such as pentane, hexane, and heptane.
- the unsaturated unsaturated copolymer ( ⁇ ') is reacted with the polar monomer in the absence of a solvent using an extruder, etc., to produce the unsaturated unsaturated copolymer.
- a coalescence ( ⁇ ') can be produced.
- the reaction temperature is usually equal to or higher than the melting point of the unsaturated olefin-based copolymer ( ⁇ ′), and specifically in the range of 120 to 250 ° C.
- the reaction time under such a temperature condition is usually 0.5 to 10 minutes.
- the unsaturated rubber In the rubber composition for a tire tread of the present invention, the unsaturated rubber
- the compounding ratio of the terpolymer ( ⁇ ′) and the gen-based rubber ( ⁇ ) is 1/99 to 50/50, preferably 5 ⁇ , by weight ratio of ( ⁇ ′) / ( ⁇ ). 95 to 30/70.
- the rubber composition for a tire tread of the present invention is a vulcanizable rubber composition and can be used as it is without being vulcanized, but is usually used as a vulcanizate.
- the method can be carried out by a method of heating using an electron beam or a method of irradiating an electron beam without using a vulcanizing agent.
- the same vulcanizing agent as (D) can be used. These may be used in combination of two or more.
- an iodide or an iodide compound in particular, an iodide, since a rubber composition for tire treads having excellent properties can be obtained.
- the vulcanizing agent is an organic peroxide
- 0.05 to 15 parts by weight, preferably 0.15 to 100 parts by weight of the unsaturated olefin copolymer ( ⁇ ′) is used. It can be used in an amount of 5 parts by weight.
- the vulcanization accelerator include the rubber for tire side walls.
- the same vulcanization accelerator as used in the composition can be used.
- the vulcanization accelerator as described above is used in an amount of 0.1 to 20 parts by weight, preferably 0.2 to 10 parts by weight, based on 100 parts by weight of the unsaturated olefin-based copolymer ( ⁇ '). It is desirable to use it in the weight part.
- the vulcanizing aid is used in an amount of 0.5 to 2 mol, preferably approximately equimolar to 1 mol of the organic peroxide. Is preferred.
- the rubber composition for a tire tread of the present invention may also contain a usual rubber compounding agent.
- compounding agents include rubber reinforcing agents such as carbon black and finely powdered caic acid; softening agents; fillers such as light calcium carbonate, heavy calcium carbonate, talc, clay, silica, and the like; Wax; Binding resin; Zinc oxide; Antioxidant; Ozone crack inhibitor; Processing aid; etc. These compounding agents may be used alone or in combination of two or more. Can be.
- the amount of the reinforcing agent to be added is preferably 20 to 150 parts by weight, preferably 100 parts by weight of the total of the unsaturated olefin copolymer ( ⁇ ⁇ ') and the gen-based rubber ( ⁇ ). Is from 30 to 100 parts by weight.
- the reinforcement If the amount is large, the braking performance (wet skid) on wet road surfaces is improved, but the rolling resistance tends to decrease. On the other hand, if the amount of the reinforcing agent is small, the wear resistance tends to decrease. There is.
- the rubber composition for a tire tread of the present invention can be prepared by a general method for preparing a rubber compound.
- an internal mixer such as a Banbury mixer, a kneader, an intermix, etc.
- the unsaturated olefin-based copolymer ( ⁇ '), the gen-based rubber ( ⁇ ), and the compounding agent, if necessary, are mixed at a temperature of 80 to 170 ° C for 3 to 10 minutes.
- a vulcanizing agent, vulcanization accelerator or vulcanization aid as necessary, and use rolls such as open rolls or kneaders at a roll temperature of 40 to 80 ° C.
- a compounded rubber is obtained.
- a vulcanizing agent, a vulcanization accelerator, a foaming agent and the like can be kneaded at the same time.
- the preformed rubber composition When vulcanization is performed by electron beam irradiation without using a vulcanizing agent, the preformed rubber composition may have a viscosity of 0.1 to 10 MeV, preferably 0.3 to 2 MeV.
- An electron beam having an energy of M e V, absorbed dose 0. 5 ⁇ 3 5 M rad, when favored properly is 0.. 5 to 1 OM may c molding and vulcanization is irradiated so as to erd include gold
- a mold may be used, or a mold may not be used. When a mold is not used, the rubber composition is usually continuously molded and vulcanized.
- the vulcanized rubber thus obtained is excellent in strength properties, abrasion resistance and braking performance on a wet road surface, has low rolling resistance, and is used as a rubber for a tire tread.
- the invention's effect is excellent in strength properties, abrasion resistance and braking performance on a wet road surface, has low rolling resistance, and is used as a rubber for a tire tread.
- a vulcanized rubber sheet was punched out to prepare a No. 1 dumbbell test piece described in JIS K6301, and a 2 mm scratch was made in the longitudinal center of the test piece.
- the elongation rate was set to 40% for 20 of them, and they were subjected to elongation fatigue under the conditions of a set temperature of 40 ° C and a rotation speed of 300 rpm, and the dumbbell cut. The average number of times was determined. Elongation fatigue tests were also performed under the conditions of elongation rates of 80% and 150%.
- Monsanto fatigue tester frequency 5 Hz, temperature 27 ° C
- tan 5 G "/ G ' Loss tangent (tan 5) is an index of fuel economy. The smaller the value of loss tangent, the better fuel economy. It is theoretically known that when strain is applied to a rubber material, the amount of heat generated is proportional to the square of the input strain and proportional to the frequency and tan S. Since the fuel transmitted to the tires is not the rolling force but the heat that is consumed as heat, the low fuel efficiency is lost.As a material for the tire sidewall, the smaller the tan 5 related to heat generation, the lower the fuel efficiency It can be called a tire.
- the tan 5 of the rubber composition for a tire tread was measured under the following conditions using Dynamic Mix Torome One manufactured by Rheometrics Co., Ltd. under the following conditions.
- methylaminoxan (3% by weight toluene solution, manufactured by Tohatsu Takuso Co., Ltd.) was synthesized by a known method at 9.2 mmoK (dimethyl (tert-butylamido) (tetramethyl-)).
- 5 -Cyclopentene genil) Silane) Diclotide Titanium 0.018 was added, and the mixed solution was stirred for 15 minutes and introduced into an autoclave to initiate polymerization.
- ethylene was continuously supplied so as to keep the pressure in the system at 8 kg / cm 2 , and the mixture was polymerized for 30 minutes. Thereafter, 5 ml of methanol was added to terminate the polymerization.
- the molar ratio (ethylene / propylene) is 73/27, and the total amount of the structural unit derived from ethylene and the structural unit derived from propylene, and the structural unit derived from styrene,
- the molar ratio [(ethylene + propylene) styrene] was 94/6.
- the iodine value of this copolymer was 22 and the intrinsic viscosity [ ⁇ ?] Measured in decalin at 135 ° C was 2.2.
- a 1.5-liter photoclave was sufficiently replaced with nitrogen, and 43 ml of toluene, 40 ml of styrene, and 4.5 ml of EMND were charged. Further, propylene was introduced so as to be 3.0 kg / cm 2 . Then with stirring The interior of the system 4 0 ° was heated ethylene down the 1 0 kg / cm introduced c followed in 2 to become so and C, continuously feeding ethylene to keep the pressure in the polymerization in system 1 0 kg / cm 2 A polymerization reaction was carried out in the same manner as in Synthesis Example 1 except for the above.
- the obtained ethylene / propylene / styrene / EMND copolymer weighs 18 g, and is composed of structural units derived from ethylene and structural units derived from propylene.
- the molar ratio (ethylene propylene) is 78/22, which is the total amount of the structural units derived from ethylene and the structural units derived from propylene, and the molar ratio of the structural unit derived from styrene.
- the ratio (ethylene + propylene styrene) was 95Z5.
- the iodine value of this copolymer was 25, and the intrinsic viscosity [] measured in decalin at 135 ° C. was 3.3 dl / g.
- ethylene 1-butene-styrene-E MND copolymer weighs 15 g and is composed of a structural unit derived from ethylene and a structural unit derived from tributene.
- This copolymer had an iodine value of 27 and an intrinsic viscosity [??] measured in decalin at 135 ° C. of 3.0 dl / g.
- the molar ratio of the structural unit derived from ethylene to the structural unit derived from propylene is 75/25.
- the molar ratio of the total amount of the structural units derived from styrene and the structural units derived from propylene to the structural unit derived from styrene [(ethylene + propylene) Z styrene] is 9 2/8 Met.
- the iodine value of this copolymer was 19, and the intrinsic viscosity [] measured in decalin at 135 ° C. was 1.7.
- Copolymer (a) 30 parts by weight
- Natural rubber 70 parts by weight
- Vulcanization accelerator T M T M 0.5 parts by weight
- the unvulcanized compounded rubber obtained as described above was heated by a press heated to 160 ° C for 10 minutes to produce a vulcanized rubber sheet having a thickness of 2 and was subjected to the above test. went. Table 1 shows the results.
- Example 1 was repeated except that the copolymer (b) produced in Synthesis Example 2 was used instead of the copolymer (a) (the results are shown in Table 1). .
- Example 1 was repeated, except that the copolymer (c) produced in Synthesis Example 3 was used instead of the copolymer (a). Table 1 shows the results.
- Example 1 was carried out in the same manner as in Example 1 except that the copolymer (d) produced in Synthesis Example 4 was used instead of the copolymer (a). Table 1 shows the results.
- the glass one-liter reactor equipped with a condenser and a stirrer was sufficiently purged with nitrogen, and toluene was added to 495 m and styrene, 5 ml, 8-methyl-4-ethylidene-1, 5 ml of 7-nonagen (EMN) was charged, and saturated with ethylene while stirring. Then the temperature was raised to in the system 3 5 ° C, methyl Aluminum Nokisan (East Soakuzo Co., 1 0 wt% Toruen solution) 9 mM, (dimethyl (t - butylamine mi de) (Te Toramechiru -?
- the mixture was heated and stirred for 0 minutes. Thereafter, the reaction solution containing isobutyl alcohol was transferred to a separating funnel, washed twice with 250 ml of water, and separated into oil and water. The oil layer was then added to 3 liters of methanol to precipitate the polymer (the precipitated polymer was vacuum dried at 130 ° C. for 12 hours. The yield was 7.4 g).
- the molar ratio (ethylene / styrene) of ethylene to styrene constituting the obtained unsaturated olefin copolymer [copolymer rubber (g)] is 982, and the iodine value is The intrinsic viscosity [7?] Measured in decalin at 135 ° C., which was 18, was 4.5 dl / g. Table 2 summarizes the results
- copolymer rubbers ((g) to ()) of Synthesis Examples 6 to 11 were blended according to Table 3 or Table 4, kneaded with an 8-inch open roll, and vulcanized at 150 and 20 minutes for 20 minutes. The physical properties of the obtained vulcanized rubber were measured.
- Rubber properties were evaluated by the above test method, i.e., the intensity characteristics pull ChoTsutomu of (T B), by the method of wear resistant La Nbon, braking performance on wet road surface (Uetsu Tosuki' de) Wasupeku Estimated by tand at 0 according to the trom, and the rolling resistance was evaluated by tan ⁇ 5 at 50 ° C in the spectometer.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Tires In General (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ331555A NZ331555A (en) | 1997-01-21 | 1998-01-21 | Rubber composition for tyre side wall or tread comprising unsaturated olefin copolymer prepared from ethylene, aromatic vinyl compound and non-conjugated polyene |
KR1019980707366A KR100293973B1 (ko) | 1997-01-21 | 1998-01-21 | 타이어용고무조성물 |
US09/142,863 US6300416B1 (en) | 1997-01-21 | 1998-01-21 | Rubber compositions for tires |
EP98900681A EP0889091A4 (en) | 1997-01-21 | 1998-01-21 | RUBBER COMPOSITIONS FOR TIRES |
AU55752/98A AU736721B2 (en) | 1997-01-21 | 1998-01-21 | Tire rubber composition |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP888797 | 1997-01-21 | ||
JP9/8887 | 1997-01-21 | ||
JP1373697 | 1997-01-28 | ||
JP9/13736 | 1997-01-28 | ||
JP9356255A JPH10265623A (ja) | 1997-01-21 | 1997-12-08 | タイヤサイドウォール用ゴム組成物 |
JP33750897A JP3675140B2 (ja) | 1997-01-28 | 1997-12-08 | タイヤトレッド用ゴム組成物 |
JP9/337508 | 1997-12-08 | ||
JP9/356255 | 1997-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998031745A1 true WO1998031745A1 (fr) | 1998-07-23 |
Family
ID=27455040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/000216 WO1998031745A1 (fr) | 1997-01-21 | 1998-01-21 | Compositions de gommes pour pneus |
Country Status (9)
Country | Link |
---|---|
US (1) | US6300416B1 (ja) |
EP (1) | EP0889091A4 (ja) |
KR (1) | KR100293973B1 (ja) |
CN (1) | CN1216055A (ja) |
AU (1) | AU736721B2 (ja) |
CA (1) | CA2250273A1 (ja) |
ID (1) | ID20167A (ja) |
NZ (1) | NZ331555A (ja) |
WO (1) | WO1998031745A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6218469B1 (en) * | 1997-07-18 | 2001-04-17 | Mitsui Chemicals Inc | Unsaturated elastomer compositions and their vulcanized rubbers |
WO2019078083A1 (ja) * | 2017-10-20 | 2019-04-25 | 株式会社ブリヂストン | 多元共重合体、ゴム組成物、架橋ゴム組成物、ゴム製品、及びタイヤ |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE236215T1 (de) * | 2000-07-24 | 2003-04-15 | Continental Ag | Kautschukmischung |
ES2278700T3 (es) * | 2000-11-17 | 2007-08-16 | Bridgestone Corporation | Mezcla no vulcanizada de caucho. |
EP1379397B1 (en) * | 2001-04-13 | 2004-08-25 | PIRELLI PNEUMATICI S.p.A. | Tyre comprising an ethylene copolymer, tread band and elastomeric composition used therein |
EP1385708B1 (en) * | 2001-04-13 | 2004-10-13 | PIRELLI PNEUMATICI Società per Azioni | Tyre with high roadholding, tread band and elastomeric composition used therein |
JP2004535319A (ja) | 2001-07-25 | 2004-11-25 | ピレリ・プネウマティチ・ソチエタ・ペル・アツィオーニ | エラストマー性組成物を連続的に製造するための方法および装置 |
US7964128B2 (en) | 2001-12-19 | 2011-06-21 | Pirelli Pneumatici S.P.A. | Process and apparatus for continuously producing an elastomeric composition |
ATE464172T1 (de) | 2002-07-11 | 2010-04-15 | Pirelli | Verfahren und vorrichtung zur kontinuierlichen herstellung einer elastomermischung |
JP2006256358A (ja) * | 2005-03-15 | 2006-09-28 | Bridgestone Corp | 空気入りタイヤ |
ES2611457T3 (es) | 2008-08-05 | 2017-05-09 | Prysmian S.P.A. | Cable eléctrico ignífugo |
KR20110130693A (ko) * | 2010-05-28 | 2011-12-06 | 동우 화인켐 주식회사 | 점착제 조성물 및 이를 포함하는 편광판 |
ITMI20111572A1 (it) | 2011-09-01 | 2013-03-02 | R & D Innovaction S R L | Composizioni antifiamma e relativo processo di produzione |
US10435542B2 (en) * | 2014-12-23 | 2019-10-08 | Bridestone Americas Tire Operations, LLC | Hemp oil-containing rubber compositions and related methods |
JP7120003B2 (ja) | 2017-01-24 | 2022-08-17 | 住友ゴム工業株式会社 | タイヤ |
US20200215854A1 (en) * | 2019-01-09 | 2020-07-09 | Crystal Sylver | PetraGel |
JP2022013344A (ja) * | 2020-07-03 | 2022-01-18 | 旭化成株式会社 | ゴム状ブロック共重合体、ゴム組成物、及び成形体 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0770368A (ja) * | 1993-09-03 | 1995-03-14 | Mitsui Petrochem Ind Ltd | タイヤサイドウォール用ゴム組成物 |
Family Cites Families (12)
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JPS5940165B2 (ja) * | 1977-10-15 | 1984-09-28 | 積水化成品工業株式会社 | 発泡可能な熱可塑性樹脂粒子の製造方法 |
IN167956B (ja) * | 1986-05-23 | 1991-01-12 | Uniroyal Chem Co Inc | |
KR930002411B1 (ko) | 1988-09-14 | 1993-03-30 | 미쓰이세끼유 가가꾸고오교오 가부시끼가이샤 | 벤젠불용성 유기알루미늄 옥시화합물 및 그 제조방법 |
NZ235032A (en) | 1989-08-31 | 1993-04-28 | Dow Chemical Co | Constrained geometry complexes of titanium, zirconium or hafnium comprising a substituted cyclopentadiene ligand; use as olefin polymerisation catalyst component |
TW344746B (en) * | 1994-07-06 | 1998-11-11 | Mitsui Petroleum Chemicals Ind | Unsaturated copolymer of ethylene and process for preparing the same |
ATE185822T1 (de) | 1994-09-02 | 1999-11-15 | Dow Chemical Co | Wärmehärtbare elastomere |
JP3750159B2 (ja) | 1994-09-16 | 2006-03-01 | 東ソー株式会社 | エチレン系共重合体、その組成物およびその架橋ゴム |
JP3579749B2 (ja) * | 1994-09-19 | 2004-10-20 | 東ソー株式会社 | エラストマーブレンド組成物 |
EP0718323A3 (en) | 1994-12-19 | 1998-01-14 | Sumitomo Chemical Company Limited | Ethylene type quaternary copolymer rubber |
WO1996020150A1 (fr) | 1994-12-26 | 1996-07-04 | Mitsui Petrochemical Industries, Ltd. | Composes de norbornene ayant des groupes polyenes en chaine, et copolymeres ethyleniques insatures produits a l'aide desdits composes |
TW331569B (en) * | 1995-12-29 | 1998-05-11 | Mitsui Petroleum Chemicals Ind | Unsaturated copolymer based on olefin and production and use |
AU5575198A (en) * | 1997-01-21 | 1998-08-07 | Mitsui Chemicals, Inc. | Vulcanized molding having surface decorative layer, painted thermoplastic resin composition, and painted elastomer composition |
-
1998
- 1998-01-21 AU AU55752/98A patent/AU736721B2/en not_active Ceased
- 1998-01-21 EP EP98900681A patent/EP0889091A4/en not_active Withdrawn
- 1998-01-21 WO PCT/JP1998/000216 patent/WO1998031745A1/ja active IP Right Grant
- 1998-01-21 KR KR1019980707366A patent/KR100293973B1/ko not_active IP Right Cessation
- 1998-01-21 CN CN199898800044A patent/CN1216055A/zh active Pending
- 1998-01-21 ID IDW980080D patent/ID20167A/id unknown
- 1998-01-21 US US09/142,863 patent/US6300416B1/en not_active Expired - Fee Related
- 1998-01-21 CA CA002250273A patent/CA2250273A1/en not_active Abandoned
- 1998-01-21 NZ NZ331555A patent/NZ331555A/xx unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0770368A (ja) * | 1993-09-03 | 1995-03-14 | Mitsui Petrochem Ind Ltd | タイヤサイドウォール用ゴム組成物 |
Non-Patent Citations (1)
Title |
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See also references of EP0889091A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6218469B1 (en) * | 1997-07-18 | 2001-04-17 | Mitsui Chemicals Inc | Unsaturated elastomer compositions and their vulcanized rubbers |
WO2019078083A1 (ja) * | 2017-10-20 | 2019-04-25 | 株式会社ブリヂストン | 多元共重合体、ゴム組成物、架橋ゴム組成物、ゴム製品、及びタイヤ |
JPWO2019078083A1 (ja) * | 2017-10-20 | 2020-11-26 | 株式会社ブリヂストン | 多元共重合体、ゴム組成物、架橋ゴム組成物、ゴム製品、及びタイヤ |
Also Published As
Publication number | Publication date |
---|---|
US6300416B1 (en) | 2001-10-09 |
ID20167A (id) | 1998-10-15 |
KR20000064652A (ja) | 2000-11-06 |
NZ331555A (en) | 1999-05-28 |
AU736721B2 (en) | 2001-08-02 |
EP0889091A1 (en) | 1999-01-07 |
CN1216055A (zh) | 1999-05-05 |
CA2250273A1 (en) | 1998-07-23 |
AU5575298A (en) | 1998-08-07 |
EP0889091A4 (en) | 1999-07-21 |
KR100293973B1 (ko) | 2001-10-26 |
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