JPH05271477A - Tread rubber composition - Google Patents
Tread rubber compositionInfo
- Publication number
- JPH05271477A JPH05271477A JP4073919A JP7391992A JPH05271477A JP H05271477 A JPH05271477 A JP H05271477A JP 4073919 A JP4073919 A JP 4073919A JP 7391992 A JP7391992 A JP 7391992A JP H05271477 A JPH05271477 A JP H05271477A
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- silica
- weight
- tread rubber
- parts
- Prior art date
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 37
- 239000005060 rubber Substances 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 title claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000006229 carbon black Substances 0.000 claims abstract description 27
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 23
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000013329 compounding Methods 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- ZNRLMGFXSPUZNR-UHFFFAOYSA-N 2,2,4-trimethyl-1h-quinoline Chemical group C1=CC=C2C(C)=CC(C)(C)NC2=C1 ZNRLMGFXSPUZNR-UHFFFAOYSA-N 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- DMZPTAFGSRVFIA-UHFFFAOYSA-N 3-[tris(2-methoxyethoxy)silyl]propyl 2-methylprop-2-enoate Chemical compound COCCO[Si](OCCOC)(OCCOC)CCCOC(=O)C(C)=C DMZPTAFGSRVFIA-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000006237 Intermediate SAF Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- NOZAQBYNLKNDRT-UHFFFAOYSA-N [diacetyloxy(ethenyl)silyl] acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)C=C NOZAQBYNLKNDRT-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 239000005050 vinyl trichlorosilane Substances 0.000 description 1
- -1 β-methoxyethoxy Chemical group 0.000 description 1
Classifications
-
- 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
Landscapes
- Tires In General (AREA)
- Tyre Moulding (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、トレッドゴム組成物に
関する。FIELD OF THE INVENTION The present invention relates to a tread rubber composition.
【０００２】[0002]
【従来技術とその課題】電気自動車は、バッテリー積載
の為に重量が増大し、それ故特にローリングレジスタン
ス（ＲＲ）が低減されたタイヤの開発が要求されてい
る。タイヤのＲＲを低減させるには、トレッドゴムのヒ
ステリシスロスを少なくさせることが有効であることは
よく知られた事実である。2. Description of the Related Art Electric vehicles are required to develop tires which are heavier due to battery loading and therefore have a particularly reduced rolling resistance (RR). It is a well known fact that reducing the hysteresis loss of the tread rubber is effective for reducing the RR of the tire.
【０００３】また、従来からゴム補強材としてカーボン
ブラックはゴム補強性が大きい為に、主としてカーボン
ブラック単味で使用されている。しかしながら、トレッ
ドゴム等の耐摩耗性を要するゴムに耐摩耗性向上のため
にカーボンブラックを増量していくと、ゴムのヒステリ
シスロスが大きくなるという欠点が生ずるのを避け得な
くなる。そのためゴムのヒステリシスロスを少なくする
方法として、例えばカーボンブラックの配合量を少なく
する方法、用いるカーボンブラックのグレードを下げる
方法等が検討されている。しかしながら、これらの方法
によれば、タイヤの耐摩耗性が低下するのを避け得なく
なる。Further, carbon black has been used mainly as a carbon reinforcing material since it has a large rubber reinforcing property. However, when the amount of carbon black is increased in a rubber such as a tread rubber that requires wear resistance to improve the wear resistance, it is unavoidable that the hysteresis loss of the rubber increases. Therefore, as a method for reducing the hysteresis loss of rubber, for example, a method of reducing the blending amount of carbon black, a method of lowering the grade of carbon black to be used, and the like are being studied. However, according to these methods, it is unavoidable that the wear resistance of the tire is lowered.
【０００４】このように従来の方法では、タイヤのＲＲ
を低減させ、しかもタイヤに優れた耐摩耗性を付与し得
るトレッドゴム組成物は、未だ開発されていないのが現
状である。As described above, according to the conventional method, the RR of the tire is
The present situation is that a tread rubber composition capable of reducing the above-mentioned problem and imparting excellent wear resistance to the tire has not yet been developed.
【０００５】[0005]
【課題を解決するための手段】本発明の目的は、タイヤ
の耐摩耗性を大巾に低下させることなく、タイヤのＲＲ
を低減させ得るトレッドゴム組成物を提供することにあ
る。SUMMARY OF THE INVENTION It is an object of the present invention to provide a tire RR without significantly reducing the wear resistance of the tire.
It is to provide a tread rubber composition that can reduce the above.
【０００６】本発明者らは、上記要望に合致したトレッ
ドゴム組成物を開発すべく鋭意研究を重ねて来た。その
結果、ゴムにカーボンブラックと共にシリカ及びシラン
カップリング剤を配合し、しかもカーボンブラックとシ
リカとを特定の割合で配合した場合に本発明の所期の目
的を達成し得ることを見い出した。本発明は、斯かる知
見に基づき完成されたものである。The present inventors have conducted extensive research to develop a tread rubber composition which meets the above-mentioned needs. As a result, it has been found that the desired object of the present invention can be achieved when rubber is mixed with silica and a silane coupling agent together with carbon black, and carbon black and silica are mixed at a specific ratio. The present invention has been completed based on such findings.
【０００７】即ち、本発明は、ゴムにカーボンブラッ
ク、シリカ及びシランカップリング剤が配合されたトレ
ッドゴム組成物であって、カーボンブラックとシリカの
配合比（重量）が前者に対して後者が１以上５以下であ
り且つカーボンブラック及びシリカの合計量がゴム１０
０重量部当り２０〜６０重量部であることを特徴とする
トレッドゴム組成物に係る。That is, the present invention provides a tread rubber composition in which rubber is blended with carbon black, silica and a silane coupling agent, and the blending ratio (weight) of carbon black and silica is 1 for the latter. It is 5 or more and the total amount of carbon black and silica is 10 or less.
The present invention relates to a tread rubber composition, which is 20 to 60 parts by weight per 0 parts by weight.
【０００８】本発明で用いられるゴムとしては、特に限
定されず、従来公知のものを広く使用でき、例えば天然
ゴム（ＮＲ）、ポリイソプレンゴム（ＩＲ）、ポリブタ
ジエンゴム（ＢＲ）、スチレン−ブタジエンゴム（ＳＢ
Ｒ）等の合成ゴム等が挙げられる。これらゴムは、１種
単独で又は２種以上混合して使用され得る。The rubber used in the present invention is not particularly limited and widely known ones can be widely used, for example, natural rubber (NR), polyisoprene rubber (IR), polybutadiene rubber (BR), styrene-butadiene rubber. (SB
R) and the like synthetic rubber and the like. These rubbers may be used alone or in combination of two or more.
【０００９】本発明で用いられるカーボンブラックとし
ては、特に制限がなく、従来公知のものを広く使用でき
る。本発明では、ＡＳＴＭ Ｄ２４１４に準拠して求め
たカーボンブラック１００ｇ当りのジブチルフタレート
吸油量（ｃｍ3 ）の数値ＤＢＰとＡＳＴＭ Ｄ３７６５
に準拠してセチルトリメチルアンモニウムブロマイドの
吸油量より求めたカーボンブラック１ｇ当りの比表面積
（ｍ2 ）の数値ＣＴＡＢとの合計値が１５０〜２３０で
あるカーボンブラックを使用するのが望ましく、具体的
にはＩＳＡＦ、ＨＡＦ、ＦＥＦ等を例示できる。The carbon black used in the present invention is not particularly limited, and conventionally known ones can be widely used. In the present invention, the numerical value DBP of dibutyl phthalate oil absorption (cm 3 ) per 100 g of carbon black and ASTM D3765 determined in accordance with ASTM D2414.
It is desirable to use a carbon black whose total value with the numerical value CTAB of the specific surface area (m 2 ) per 1 g of carbon black obtained from the oil absorption of cetyltrimethylammonium bromide in accordance with Can be ISAF, HAF, FEF, etc.
【００１０】本発明で用いられるシリカとしては、特に
制限がなく、従来公知のものを広く使用でき、例えば乾
式法による無水珪酸、湿式法による含水珪酸、合成珪酸
塩等が挙げられる。The silica used in the present invention is not particularly limited and widely known silicas can be widely used. Examples thereof include silicic acid anhydride by a dry method, hydrous silicic acid by a wet method, and synthetic silicate.
【００１１】本発明では、カーボンブラックとシリカの
配合比（重量）が前者に対して後者が１以上５以下であ
り且つカーボンブラック及びシリカの合計量がゴム１０
０重量部当り２０〜６０重量部、好ましくは３０〜５０
重量部となるように両者を配合することが重要である。
カーボンブラックとシリカの配合比が１より小さくなる
と、タイヤのＲＲが高くなるという不都合が生じ、逆に
該配合比が５より大きくなると、タイヤの耐摩耗性が大
巾に低下するという不都合が生じる。またカーボンブラ
ック及びシリカの合計量が６０重量部より多くなると、
タイヤのＲＲが高くなるという不都合が生じ、逆に２０
重量部より少なくなると、タイヤの耐摩耗性が大巾に低
下するという不都合が生じる。In the present invention, the compounding ratio (weight) of carbon black and silica is 1 to 5 with respect to the former, and the total amount of carbon black and silica is rubber 10.
20-60 parts by weight per 0 parts by weight, preferably 30-50
It is important to mix the both so that the parts are by weight.
If the compounding ratio of carbon black and silica is less than 1, the RR of the tire will be high, and if the compounding ratio is more than 5, the wear resistance of the tire will be significantly reduced. .. When the total amount of carbon black and silica exceeds 60 parts by weight,
Inconvenience that the RR of the tire becomes high,
If the amount is less than the weight part, there arises a disadvantage that the wear resistance of the tire is greatly reduced.
【００１２】本発明においては、シランカップリング剤
を配合するのが望ましい。シランカップリング剤として
は、従来公知のものを広く使用でき、例えばビス（トリ
エトキシリルプロピル）テトラスルフィド、ビニルトリ
クロロシラン、ビニルトリエトキシシラン、ビニルトリ
メトキシシラン、ビニル−トリス（β−メトキシエトキ
シ）シラン、γ−メタクリロキシプロピルトリメトキシ
シラン、γ−メタクリロキシプロピルトリス（β−メト
キシエトキシ）シラン、β−（３，４−エポキシシクロ
ヘキシル）エチルトリメトキシシラン、γ−グリシドキ
シプロピルトリメトキシシラン、ビニルトリアセトキシ
シラン、γ−メルカプトプロピルトリメトキシシラン、
γ−アミノプロピルトリエトキシシラン、Ｎ−β−アミ
ノエチル−γ−アミノプロピルトリメトキシシラン等が
挙げられる。これらシランカップリング剤の配合量は、
通常シリカ１００重量部当り３〜２０重量部程度、好ま
しくは１０重量部程度とするのがよい。シランカップリ
ング剤の配合量が３重量部未満であると、得られるタイ
ヤのＲＲが高く且つ耐摩耗性が低下する傾向となり、ま
たシランカップリング剤の配合量が２０重量部を超える
と、コストが高くなり不経済となるので、望ましくな
い。In the present invention, it is desirable to add a silane coupling agent. As the silane coupling agent, conventionally known ones can be widely used, and examples thereof include bis (triethoxylylpropyl) tetrasulfide, vinyltrichlorosilane, vinyltriethoxysilane, vinyltrimethoxysilane, and vinyl-tris (β-methoxyethoxy). Silane, γ-methacryloxypropyltrimethoxysilane, γ-methacryloxypropyltris (β-methoxyethoxy) silane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, Vinyltriacetoxysilane, γ-mercaptopropyltrimethoxysilane,
γ-aminopropyltriethoxysilane, N-β-aminoethyl-γ-aminopropyltrimethoxysilane and the like can be mentioned. The blending amount of these silane coupling agents is
Usually, it is about 3 to 20 parts by weight, preferably about 10 parts by weight, per 100 parts by weight of silica. If the blending amount of the silane coupling agent is less than 3 parts by weight, the RR of the obtained tire tends to be high and the wear resistance tends to be low, and if the blending amount of the silane coupling agent exceeds 20 parts by weight, the cost becomes low. Is not desirable because it becomes expensive and uneconomical.
【００１３】また、硫黄の配合量としては、使用中の架
橋密度を過度に増加させないため、ゴム１００重量部当
り１．５〜２．５重量部程度配合するのが好ましい。The amount of sulfur added is preferably about 1.5 to 2.5 parts by weight per 100 parts by weight of rubber so as not to excessively increase the crosslinking density during use.
【００１４】本発明の組成物には、上記成分以外に公知
の加硫剤、加硫促進剤、軟化剤、老化防止剤等が配合さ
れ、更に必要に応じて加硫遅延剤、粘着付与剤等が配合
され得る。In addition to the above-mentioned components, the composition of the present invention contains known vulcanizing agents, vulcanization accelerators, softening agents, antioxidants and the like, and further, if necessary, vulcanization retarders and tackifiers. Etc. can be blended.
【００１５】[0015]
【実施例】以下に実施例を掲げて本発明をより一層明ら
かにする。EXAMPLES The present invention will be further clarified with reference to the following examples.
【００１６】実施例１〜７及び比較例１〜５ 下記表１に示す配合で各トレッドゴム組成物を得た。Ｒ
Ｒの代用特性として、ＪＩＳ Ｋ６３０１に従い各トレ
ッドゴム組成物の反発弾性を測定し、比較例１の組成物
の反発弾性を１００として指数で示した。反発弾性の数
値が大きい程、ＲＲが小さく良好であることを示してい
る。また、通常の方法に従って７００Ｒ１５−１０ＰＲ
のタイヤを試作し、２万ｋｍ走行後の摩耗量を求め、そ
の逆数を比較例１の組成で得られたタイヤの摩耗量を１
００として指数で示した。実走摩耗の数値が大きい程、
耐摩耗性が良好である。これらの結果を下記表１に併せ
て示す。Examples 1 to 7 and Comparative Examples 1 to 5 Each tread rubber composition was obtained with the composition shown in Table 1 below. R
As a substitute property of R, the impact resilience of each tread rubber composition was measured in accordance with JIS K6301, and the impact resilience of the composition of Comparative Example 1 was set as 100 and indicated by an index. The larger the value of impact resilience, the smaller the RR and the better. In addition, 700R15-10PR according to the usual method
Was produced as a prototype, the wear amount after running 20,000 km was obtained, and the reciprocal thereof was taken as the wear amount of the tire obtained with the composition of Comparative Example 1
It is shown as an index as 00. The larger the value of actual wear,
Good wear resistance. The results are also shown in Table 1 below.
【００１７】尚、表１中、天然ゴムは、ＲＳＳ＃３であ
る。シランカップリング剤は、ビス（トリエトキシリル
プロピル）テストスルフィドである。老化防止剤は、
２，２，４−トリメチル−１，２−ジハイドロキノリン
である。加硫促進剤は、Ｎ−ｔ−ブチル−２−ベンゾチ
アゾールスルフェンアマイドである。In Table 1, the natural rubber is RSS # 3. The silane coupling agent is bis (triethoxylylpropyl) test sulfide. Anti-aging agent,
It is 2,2,4-trimethyl-1,2-dihydroquinoline. The vulcanization accelerator is Nt-butyl-2-benzothiazolesulfenamide.
【００１８】[0018]
【表１】 [Table 1]
【００１９】表１から明らかなように、本発明のトレッ
ドゴム組成物を使用すると、耐摩耗性が大巾に低下せ
ず、ＲＲが低減されたタイヤを得ることができる。比較
例１は、シリカが配合されていない例である。比較例２
は、カーボンブラックとシリカとの合計量がゴム１００
重量部当り２０重量部を下回る例であるが、この場合に
は耐摩耗性が大巾に低下する。比較例３は、カーボンブ
ラックとシリカの配合比が１より小さい例であるが、こ
の場合にはＲＲの改善効果が少ない。比較例４は、カー
ボンブラックとシリカとの合計量がゴム１００重量部当
り６０重量部を上回る例であるが、この場合にはＲＲが
極端に悪くなる。比較例５は、カーボンブラックとシリ
カの配合比が５より大きい例であるが、この場合には耐
摩耗性が大巾に低下する。As is clear from Table 1, by using the tread rubber composition of the present invention, it is possible to obtain a tire in which the abrasion resistance does not significantly decrease and the RR is reduced. Comparative Example 1 is an example in which silica is not mixed. Comparative example 2
Indicates that the total amount of carbon black and silica is 100 rubber.
This is an example of less than 20 parts by weight per part by weight, but in this case, the wear resistance is greatly reduced. Comparative Example 3 is an example in which the compounding ratio of carbon black and silica is smaller than 1, but in this case, the effect of improving RR is small. Comparative Example 4 is an example in which the total amount of carbon black and silica exceeds 60 parts by weight per 100 parts by weight of rubber, but in this case, the RR becomes extremely poor. Comparative Example 5 is an example in which the compounding ratio of carbon black and silica is larger than 5, but in this case, the abrasion resistance is significantly reduced.
【００２０】[0020]
【発明の効果】本発明のトレッドゴム組成物は、タイヤ
耐摩耗性を大巾に低下させることなく、タイヤのＲＲを
低減させ得るものである。従って、本発明のトレッドゴ
ム組成物を用いて作成されたタイヤは特に電気自動車に
好適に使用され得る。The tread rubber composition of the present invention is capable of reducing the RR of a tire without significantly reducing the wear resistance of the tire. Therefore, the tire produced by using the tread rubber composition of the present invention can be suitably used especially for electric vehicles.
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 21:00 Continuation of front page (51) Int.Cl. 5 Identification number Office reference number FI technical display area // B29K 21:00
Claims (2)
ランカップリング剤が配合されたトレッドゴム組成物で
あって、カーボンブラックとシリカの配合比（重量）が
前者に対して後者が１以上５以下であり且つカーボンブ
ラック及びシリカの合計量がゴム１００重量部当り２０
〜６０重量部であることを特徴とするトレッドゴム組成
物。1. A tread rubber composition in which rubber is blended with carbon black, silica and a silane coupling agent, wherein the blending ratio (weight) of carbon black and silica is 1 to 5 with respect to the former. And the total amount of carbon black and silica is 20 per 100 parts by weight of rubber.
A tread rubber composition, wherein the tread rubber composition is about 60 parts by weight.
１００重量部当り３〜２０重量部である請求項１記載の
トレッドゴム組成物。2. The tread rubber composition according to claim 1, wherein the compounding amount of the silane coupling agent is 3 to 20 parts by weight per 100 parts by weight of silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4073919A JPH05271477A (en) | 1992-03-30 | 1992-03-30 | Tread rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4073919A JPH05271477A (en) | 1992-03-30 | 1992-03-30 | Tread rubber composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05271477A true JPH05271477A (en) | 1993-10-19 |
Family
ID=13532053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4073919A Pending JPH05271477A (en) | 1992-03-30 | 1992-03-30 | Tread rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05271477A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996005250A1 (en) * | 1994-08-08 | 1996-02-22 | Asahi Kasei Kogyo Kabushiki Kaisha | Hydrogenated rubber composition |
| WO1997024383A1 (en) * | 1995-12-29 | 1997-07-10 | Nippon Zeon Co., Ltd. | Diene rubber, process for the preparation of the same and composition containing the same |
| US5780535A (en) * | 1995-06-06 | 1998-07-14 | Bridgestone Corporation | Rubber compositions for use in tire tread |
| US5851321A (en) * | 1995-01-13 | 1998-12-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire including cap tread portion |
| US6095217A (en) * | 1996-07-11 | 2000-08-01 | Bridgestone Corporation | Pneumatic tire including cap layer and base layer |
| US6147143A (en) * | 1996-12-16 | 2000-11-14 | Bridgestone Corporation | Rubber composition and pneumatic tire using said rubber composition |
| US6172157B1 (en) | 1996-06-26 | 2001-01-09 | Bridgestone Corporation | Rubber compositions |
| US6242516B1 (en) | 1996-12-16 | 2001-06-05 | Bridgestone Corporation | Rubber composition and pneumatic tire using said rubber composition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61287802A (en) * | 1985-06-15 | 1986-12-18 | Toyo Tire & Rubber Co Ltd | Tire having good resistance to cutting |
| JPH037602A (en) * | 1989-06-05 | 1991-01-14 | Toyo Tire & Rubber Co Ltd | Tire with cap base structure |
| JPH03252431A (en) * | 1990-03-02 | 1991-11-11 | Bridgestone Corp | Pneumatic tire |
| JPH0551485A (en) * | 1991-08-23 | 1993-03-02 | Bridgestone Corp | Pneumatic tire |
| JPH0551484A (en) * | 1991-08-26 | 1993-03-02 | Bridgestone Corp | Rubber composition |
-
1992
- 1992-03-30 JP JP4073919A patent/JPH05271477A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61287802A (en) * | 1985-06-15 | 1986-12-18 | Toyo Tire & Rubber Co Ltd | Tire having good resistance to cutting |
| JPH037602A (en) * | 1989-06-05 | 1991-01-14 | Toyo Tire & Rubber Co Ltd | Tire with cap base structure |
| JPH03252431A (en) * | 1990-03-02 | 1991-11-11 | Bridgestone Corp | Pneumatic tire |
| JPH0551485A (en) * | 1991-08-23 | 1993-03-02 | Bridgestone Corp | Pneumatic tire |
| JPH0551484A (en) * | 1991-08-26 | 1993-03-02 | Bridgestone Corp | Rubber composition |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996005250A1 (en) * | 1994-08-08 | 1996-02-22 | Asahi Kasei Kogyo Kabushiki Kaisha | Hydrogenated rubber composition |
| US5851321A (en) * | 1995-01-13 | 1998-12-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire including cap tread portion |
| US5780535A (en) * | 1995-06-06 | 1998-07-14 | Bridgestone Corporation | Rubber compositions for use in tire tread |
| WO1997024383A1 (en) * | 1995-12-29 | 1997-07-10 | Nippon Zeon Co., Ltd. | Diene rubber, process for the preparation of the same and composition containing the same |
| US6111045A (en) * | 1995-12-29 | 2000-08-29 | Nippon Zeon Co. Ltd. | Diene rubber, process for preparing same, and composition containing same |
| US6172157B1 (en) | 1996-06-26 | 2001-01-09 | Bridgestone Corporation | Rubber compositions |
| US6095217A (en) * | 1996-07-11 | 2000-08-01 | Bridgestone Corporation | Pneumatic tire including cap layer and base layer |
| US6147143A (en) * | 1996-12-16 | 2000-11-14 | Bridgestone Corporation | Rubber composition and pneumatic tire using said rubber composition |
| US6242516B1 (en) | 1996-12-16 | 2001-06-05 | Bridgestone Corporation | Rubber composition and pneumatic tire using said rubber composition |
| USRE43452E1 (en) * | 1996-12-16 | 2012-06-05 | Bridgestone Corporation | Rubber composition and pneumatic tire using said rubber composition |
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| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19960910 |