CN100345899C - Rubber composition for tire tread - Google Patents
Rubber composition for tire tread Download PDFInfo
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- CN100345899C CN100345899C CNB2003801002023A CN200380100202A CN100345899C CN 100345899 C CN100345899 C CN 100345899C CN B2003801002023 A CNB2003801002023 A CN B2003801002023A CN 200380100202 A CN200380100202 A CN 200380100202A CN 100345899 C CN100345899 C CN 100345899C
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- Prior art keywords
- rubber
- weight
- carbon black
- dbpa
- tire tread
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 45
- 239000005060 rubber Substances 0.000 title claims abstract description 44
- 239000000203 mixture Substances 0.000 title abstract description 6
- 239000006229 carbon black Substances 0.000 claims abstract description 32
- ZUROCNHARMFRKA-UHFFFAOYSA-N 4,5-dibromo-1h-pyrrole-2-carboxylic acid Chemical compound OC(=O)C1=CC(Br)=C(Br)N1 ZUROCNHARMFRKA-UHFFFAOYSA-N 0.000 claims abstract description 19
- 101100431668 Homo sapiens YBX3 gene Proteins 0.000 claims abstract description 19
- 102100022221 Y-box-binding protein 3 Human genes 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 229920003244 diene elastomer Polymers 0.000 claims description 11
- 230000009477 glass transition Effects 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 150000001993 dienes Chemical class 0.000 abstract 1
- 235000019241 carbon black Nutrition 0.000 description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- 239000000377 silicon dioxide Substances 0.000 description 12
- 229960001866 silicon dioxide Drugs 0.000 description 10
- 235000012239 silicon dioxide Nutrition 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229920000459 Nitrile rubber Polymers 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000872198 Serjania polyphylla Species 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000010692 aromatic oil Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010074 rubber mixing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 125000005420 sulfonamido group Chemical group S(=O)(=O)(N*)* 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Abstract
A rubber composition for a tire tread including 100 parts by weight of a diene-based rubber and 5 to 150 parts by weight of carbon black having a nitrogen adsorption specific area N2SA (m<2>/g) of 80 to 150 and satisfying a relationship between a TINT (%) and dibutyl phthalate absorption DBPA (ml/100 g) of TINT (%) > 1.4 DBPA (ml/100 g) and capable of increasing the frictional force without impairing the hysteresis loss.
Description
Technical field
What the present invention relates to is the rubber combination that is used for tire tread, and more particularly, what relate to is to be used for tire tread, can to increase frictional force and can the substantive rubber combination that weakens the hysteresis loss performance.
Background technology
About the rubber that tire tread uses, people have the rubber of high frictional force for the purpose of safety always in searching.On the other hand, people have the tire of low-rolling-resistance from environment and healthy angle always in searching, promptly seek the rubber that has low hysteresis loss when tyre rotation.For reaching the performance of this two aspect simultaneously, the technology (for example, can consult Journal of the Adhesion Society of Japan, Vol.37, No.5 (2001), pp.21 to26) that the known useful silicon-dioxide of people cooperates.About why silicon-dioxide can show this characteristics, what can mention is that silica containing rubber has this fact of low elastic modulus in the low stress area.But, owing to must use silane coupling agent silicon-dioxide could be combined with rubber chemistry, so the reaction between silicon-dioxide and the silane coupling agent must be controlled.Particularly when compound a large amount of silicon-dioxide, exist the problem that occurs multiple restriction in the reaction process.
Summary of the invention
Thereby target of the present invention is to be provided for tire tread, can increase frictional force and can the substantive rubber combination that reduces the hysteresis loss performance.
The invention provides the rubber combination that is used for tire tread, it contains by weight 100 parts diene rubber and 5 to 150 parts carbon black by weight, sooty nitrogen adsorption specific surface area N
2SA (m
2/ g) be 80 to 150, and in tinctorial strength (for ITRB) (being TINT) (%) and satisfy relational expression TINT (%)＞1.4DBPA (ml/100g) between the dibutyl phthalate adsorption DBPA (ml/100g).
The present invention also provides the rubber combination that is used for tire tread, and it contains by weight 100 parts average glass transition temperature Tg at-50 ℃ of diene rubbers to-10 ℃ of scopes, 5 to 150 parts carbon black by weight, sooty nitrogen adsorption specific surface area N
2SA (m
2/ g) be 80 to 150 and dibutyl phthalate adsorption DBPA (ml/100g) at 30 to 80 scope and 0 to 145 part of other optional filler arbitrarily by weight.
Optimum implementation of the present invention
In the present invention, nitrogen adsorption specific surface area N
2SA (m
2/ g) be meant the value of using the automatic specific surface area survey meter of 2300 types to measure according to the method for JIS K6217-2, tinctorial strength (for ITRB) (being TINT) (%) is meant at film and stretches the value of using the Densichron reflexometer to measure according to the method for JIS K6217-5 under the condition of method, and dibutyl phthalate adsorption DBPA (ml/100g) is meant the value of using Type B oil suction meter to measure according to the method for JIS K6217-4.
The contriver studies for the sooty kind that fits into diene rubber, found that, has suitable particle size and compare carbon black by cooperation, the roughly the same rubber combination of degree in the time of can obtaining the situation of the Young's modulus of low stress area and composite silicon dioxide surprisingly with higher tinctorial strength with its structure and scale.
According to the present invention, the diene rubber that can be mixed for the rubber combination of tire tread comprises, for example, and any diene rubber that can be used as the initial rubber of making tire.As representational diene rubber, that can mention has various natural rubbers (NR), various polyisobutylene rubbers (IR), various polybutadiene rubbers (BR), various Styrene Butadiene Copolymer rubber (SBR), ethylene-propylene-diene terpolymer (EPDM) or the like.These rubber can use separately, or use their any mixture.Considering from the angle that improves frictional force, preferred-50 ℃ to-10 ℃ of the average glass transition temperature that the present invention uses, more preferably-45 ℃ is particularly preferred to-20 ℃ diene rubber.
According to first aspect present invention, be used for the rubber combination of tire tread 5 to 150 parts by weight, 10 to 140 parts carbon black by weight particularly, its nitrogen adsorption specific surface area N of comprising as indicated above
2SA (m
2/ g) be 80 to 150, preferred 82 to 140, and between TINT (%) and dibutyl phthalate adsorption DBPA (ml/100g), satisfy relational expression TINT (%)＞1.4DBPA (ml/100g).
Sooty nitrogen adsorption specific surface area N
2SA (m
2/ g) be the value that characterizes the carbon black pellet size, and measure according to JIS-K6217.Tinctorial strength TINT (%) is the important indicator when carbon black is used for colored ink for example.It shows the brightness (measuring with JIS-K6217) when applying the carbon black that mixes with whitewash.Color is black more, and tinting strength is just strong more.DBPA (ml/100g) is the value that characterizes the carbon black pellet structure, and measures according to JIS-K6217.
If being used for sooty particle size of the present invention (is N
2The value of SA) too little, the feature of the rubber combination resistance to fracture that obtains or resistance to abrasion aspect just defective, and opposite, if should value too big, just be difficult to make carbon black disperseing fully when rubber etc. mixes, and therefore the feature of resistance to fracture or resistance to abrasion aspect become defective.The sooty DBPA that the present invention uses is preferably 30 to 80 (ml/100g), more preferably 40 to 78 (ml/100g).Use the DBPA of this scope can further improve frictional force.Note, also can on the degree that does not cause processing problems, use silicon-dioxide with carbon black.
The sooty TINT (%) that the present invention uses is 1.4 times of DBPA (ml/100g) value, preferably at least 1.5 times, and more preferably 1.6 times.As for comparing the carbon black with big tinctorial strength with the scale of structure, that can mention has a carbon black of for example passing by always to be used to make ink.This sooty surfactivity is different with the conventional carbon black that rubber uses, and therefore, can not form the rubber of combining closely after mixing.In addition, the rubber molecule that is retrained is effectively arranged seldom, and the situation when therefore the Young's modulus of low stress area is with cooperation silicon-dioxide is the same becomes lower.In addition, if the sooty structure is little, carbon black just is difficult to form network structure in rubber, and the Young's modulus of low stress area is tending towards reducing further.
Further explain, be used for the carbon black of tire tread in the past, if particle size little (be N
2SA is big) and structure big (being that DBPA is big), just be considered to preferred.This is because many rubber of combining closely that it is believed that this soot formation, and shows the high solidity that adds.In contrast, to have suitable particle size (be N to the carbon black that uses of the present invention
2SA is 80 to 150m
2/ g) and little structure (be DBPA be 30 to 80ml/100g) and can not be used for tire tread so far.In addition,, the carbon black with big DBPA and high TINT was arranged once, but the carbon black with high TINT and little DBPA never is used for tire tread about TINT.That is, the carbon black that the present invention uses never is used for tire tread, and its use on tire tread is novel fully.As seen, consider from the angle that can add solidity, the carbon black of minor structure is not preferred, but the inventor finds, use has suitable particle size and the carbon black of high TINT, can obtain even compare with conventional carbon black wet performance better even also can be used for the rubber combination of tire tread completely with regard to can adding solidity.
In a second aspect of the present invention, to by weight 100 parts, Tg be-50 ℃ to-10 ℃, preferred-45 ℃ in-20 ℃ diene rubber, add N
2SA is 80 to 150m
2/ g, preferred 82 to 140m
2/ g and DBPA are 30 to 80ml/100g, preferred 40 carbon blacks to 78ml/100g, and no matter how many sooty TINT is, can obtain desired effects of the present invention.Note, the rubber combination of the mat woven of fine bamboo strips two aspects according to the present invention, except 100 parts diene rubber and the carbon black that limits above 5 to 150 parts by weight by weight, rubber combination can contain 0 to 145 part by weight, preferred 5 to 135 parts any optional weighting material by weight (for example, general carbon black or silicon-dioxide).
Except that above basal component, can contain multiple tire typical additives according to rubber combination of the present invention, for example sulfuration and linking agent, sulfuration and crosslinking accelerator, polytype oil, antiaging agent and softening agent.Can batch mixes be can be used for thereafter vulcanizing or crosslinked composition to generate by method commonly used.As long as purpose of the present invention does not affect adversely, the amount of these additives can be accomplished the amount that tradition is commonly used.Rubber combination of the present invention use as tyre running tread use, can increase frictional force and not weaken the rubber combination of hysteresis loss performance.
Embodiment
To further explain the present invention with embodiment below, still, certainly, scope of the present invention is not limited to these embodiment.
Embodiment 1 to 4 and Comparative Examples 1 to 2
The preparation of sample
According to the various prescriptions shown in the Table I, with 16 liters of inner Bambury mixing tanks, with other compound beyond rubber, carbon black and sulphur and the vulcanization accelerator 5 minutes, to obtain master batch.Use opening rubber mixing machine in master batch, to mix vulcanization accelerator and sulphur then, thereby obtain rubber combination.Every kind of rubber combination that obtains like this vulcanized 30 minutes in the mould of 15 * 15 * 0.2cm, under 160 ℃ temperature, thereby obtained the vulcanized rubber sheet.
Next step is according to the Δ E ' (20 ℃) and the wet braking performance of every kind of vulcanized rubber sheet that obtains like this of following method test.The result as shown in Table I.
The test of Δ E '
The visco-elasticity instrument that uses Toyo Seiki company to produce, the dynamic stress with from 0.2% to 8.2% is a variable, measures storage modulus E ' and out-of-phase modulus E ".With the Cole-Cole graphic representation (referring to G.Kraus, " elastomeric enhancing " (Reinforcement of Elastomers), IntersciencePublishers, p.81 (1965)) determine the elastic modulus E when ' 0 of the elastic modulus E under the zero stress and stress are infinitely great '
∞, and according to E '
0-E '
∞Draw Δ E '.Δ E ' value is more little, but road surface projection followability is just good more, grabs the ground ability and just improves manyly more.
The wet braking test
Use different rubber combination to make the tire of model at tread portion as 195/65R15, and with its on bituminous pavement, initial velocity carries out braking distance during for 100km/h and tests.With Comparative Examples 1 is 100 with indexing as a result.This numerical value is big more, and braking distance is just short more, thereby just good more.
Table I
| Comparative Examples 1 | Embodiment 1 | Embodiment 2 | Comparative Examples 2 | Embodiment 3 | Embodiment 4 | |
| Batching (part, Nipol 9528R by weight) *1 Nipol 1502 *2 N234 *3 Nipsil AQ *4 RCF#44 *5 RCF#45L *6 Santoflex 6PPD *7No. the 3rd, zinc oxide *8Stearic acid *9Aromatic oil *10 Santocure NS *11Sulphur *12 | 68.75 50 80 - - - 1 3 1 16.25 2 1.7 | 68.75 50 - - 80 - 1 3 1 16.25 2 1.7 | 68.75 50 - - - 80 1 3 1 16.25 2 1.7 | 68.75 50 40 40 - - 1 3 1 16.25 2 1.7 | 68.75 50 - 20 60 - 1 3 1 16.25 2 1.7 | 68.75 50 - 20 - 60 1 3 1 16.25 2 1.7 |
| Performance evaluation Δ E ' (20 ℃) wet braking index | 35.9 100 | 25.9 108 | 23.2 106 | 32.6 105 | 25.7 110 | 21.7 107 |
The footnote of Table I
*1:27.3% oil fills SBR (Tg=-35 ℃), and Nippon Zeon produces
*2:SBR (Tg=-51 ℃), Nippon Zeon produces
*3: carbon black, Showa Cabot produces (seeing Table II)
*4: silicon-dioxide, Nippon Silica Industrial produces
*5: carbon black, Mitsubishi Chemical produces (seeing Table II)
*6: carbon black, Mitsubishi Chemical produces (seeing Table II)
*7: antiaging agent, FLEXSYS produces
*8: industrial oxidation zinc, Seido Chemical produces
*9: stearic acid, Nippon Oil and Fat produces
*10: aromatic oil, Showa Shell Oil Sekiyu produces
*11: the sulfonamido vulcanization accelerator, FLEXSYS produces
*12: sulphur, Tsurumi Chemical produces
Table II
| N234 | RCF#44 | RCF#45L | |
| N 2SA(m 2/g) DBP(ml/100g) 1.4×DBP TINT(％) | 112 121 169 122 | 99.7 76 106 129 | 117 54 76 141 |
Notice that the average T g of Nipol 9528R (Tg=-35 ℃) and Nipol 1502 (Tg=-51 ℃) is-35 * 0.5+ (51 * 0.5)=-43 ℃.
Commercial Application
As above release, according to the present invention, can increase the frictional force of rubber, but can not cause the decline of hysteresis loss performance, thereby composition is more desirable as the rubber composition that tire tread uses.
Claims (3)
1, a kind of pneumatic tyre, it has the tire tread that is formed by following rubber combination: this rubber combination contains by weight 100 parts average glass transition temperature Tg and is-50 ℃ to-10 ℃ diene rubber and 5 to 150 parts carbon black by weight, sooty nitrogen adsorption specific surface area N
2SA is 80 to 150m
2/ g and dibutyl phthalate adsorption DBPA are 30 to 80ml/100g, and at tinctorial strength TINT (for ITRB) (%) and satisfy relational expression TINT (%)＞1.4DBPA (ml/100g) between the dibutyl phthalate adsorption DBPA (ml/100g).
2, according to the pneumatic tyre of claim 1, wherein said sooty nitrogen adsorption specific surface area N
2SA is 82 to 140m
2/ g and DBPA are 40 to 78ml/100g.
3, a kind of pneumatic tyre, it has the tire tread that is formed by following rubber combination: this rubber combination contains by weight 100 parts average glass transition temperature Tg and is-45 ℃ to-20 ℃ diene rubber, 5 to 150 parts carbon black by weight, sooty nitrogen adsorption specific surface area N
2SA is 82 to 140m
2/ g and dibutyl phthalate adsorption DBPA are 40 to 78ml/100g and 0 to 145 part of other any optionally filler by weight.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP356904/2002 | 2002-12-09 | ||
| JP2002356904 | 2002-12-09 | ||
| JP165116/2003 | 2003-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1692137A CN1692137A (en) | 2005-11-02 |
| CN100345899C true CN100345899C (en) | 2007-10-31 |
Family
ID=35346951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801002023A Expired - Fee Related CN100345899C (en) | 2002-12-09 | 2003-12-03 | Rubber composition for tire tread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100345899C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130509A (en) * | 2014-08-12 | 2014-11-05 | 夏华松 | Strong-viscosity crosslinking body material for rubber tire industry |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06212025A (en) * | 1993-01-19 | 1994-08-02 | Tokai Carbon Co Ltd | Rubber composition |
| US5382621A (en) * | 1993-01-21 | 1995-01-17 | Cabot Corporation | Skim compounds incorporating low ash carbon blacks |
| JPH08183883A (en) * | 1995-01-04 | 1996-07-16 | Sumitomo Chem Co Ltd | Tire tread rubber composition and its production |
| JP2001040143A (en) * | 1999-07-26 | 2001-02-13 | Sumitomo Rubber Ind Ltd | Rubber composition for tire tread |
| EP1260384A2 (en) * | 2001-05-21 | 2002-11-27 | Sumitomo Rubber Industries Limited | Rubber composition for breaker and pneumatic tire using the same |
-
2003
- 2003-12-03 CN CNB2003801002023A patent/CN100345899C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06212025A (en) * | 1993-01-19 | 1994-08-02 | Tokai Carbon Co Ltd | Rubber composition |
| US5382621A (en) * | 1993-01-21 | 1995-01-17 | Cabot Corporation | Skim compounds incorporating low ash carbon blacks |
| JPH08183883A (en) * | 1995-01-04 | 1996-07-16 | Sumitomo Chem Co Ltd | Tire tread rubber composition and its production |
| JP2001040143A (en) * | 1999-07-26 | 2001-02-13 | Sumitomo Rubber Ind Ltd | Rubber composition for tire tread |
| EP1260384A2 (en) * | 2001-05-21 | 2002-11-27 | Sumitomo Rubber Industries Limited | Rubber composition for breaker and pneumatic tire using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1692137A (en) | 2005-11-02 |
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Granted publication date: 20071031 Termination date: 20211203 |