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1. (WO2018105389) RUBBER COMPOSITION FOR TIRE TREAD AND PNEUMATIC TIRE
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Pub. No.: WO/2018/105389 International Application No.: PCT/JP2017/041836
Publication Date: 14.06.2018 International Filing Date: 21.11.2017
IPC:
C08L 9/06 (2006.01) ,B60C 1/00 (2006.01) ,C08K 3/36 (2006.01) ,C08L 7/00 (2006.01) ,C08L 9/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
06
Copolymers with styrene
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
1
Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3
Use of inorganic ingredients
34
Silicon-containing compounds
36
Silica
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
7
Compositions of natural rubber
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
Applicants:
TOYO TIRE株式会社 TOYO TIRE CORPORATION [JP/JP]; 兵庫県伊丹市藤ノ木2丁目2番13号 2-2-13 Fujinoki, Itami-shi, Hyogo 6640847, JP
Inventors:
遠近 真矢 TOCHIKA, Shinya; JP
Agent:
蔦田 正人 TSUTADA, Masato; JP
中村 哲士 NAKAMURA, Satoshi; JP
富田 克幸 TOMITA, Katsuyuki; JP
有近 康臣 ARICHIKA, Yasuomi; JP
前澤 龍 MAEZAWA, Ryo; JP
水鳥 正裕 MIZUTORI, Masahiro; JP
蔦田 璋子 TSUTADA, Akiko; JP
Priority Data:
2016-23883608.12.2016JP
Title (EN) RUBBER COMPOSITION FOR TIRE TREAD AND PNEUMATIC TIRE
(FR) COMPOSITION DE CAOUTCHOUC POUR BANDE DE ROULEMENT DE PNEU, ET PNEUMATIQUE
(JA) タイヤトレッド用ゴム組成物及び空気入りタイヤ
Abstract:
(EN) The present invention improves ordinary-temperature performances, such as wet performance and dry performance, while inhibiting the low-temperature performances from decreasing. The rubber composition for tire treads according to an embodiment comprises 100 parts by mass of a rubber component comprising a styrene/butadiene rubber having a glass transition temperature of -60°C or lower and 70 parts by mass or more of a reinforcing filler comprising silica, the rubber composition giving a vulcanizate which, when examined under the conditions of a frequency of 10 Hz, an initial strain of 10%, and a dynamic strain of ±0.25%, has a storage modulus E'(-20°C) at a temperature of -20°C and a storage modulus E'(30°C) at a temperature of 30°C, the ratio between the two moduli satisfying 2.0≤E'(-20°C)/E'(30°C)≤3.0.
(FR) La présente invention améliore des performances à température ordinaire, telles que les performances sur sol mouillé et les performances sur sol sec, tout en empêchant les performances à basse température de diminuer. La composition de caoutchouc pour bandes de roulement de pneu selon un mode de réalisation comprend 100 parties en masse d'un constituant de caoutchouc comprenant un caoutchouc styrène/butadiène ayant une température de transition vitreuse de -60 °C ou moins et 70 parties en masse ou plus d'une charge de renforcement comprenant de la silice, la composition de caoutchouc donnant un vulcanisat qui, lorsqu'il est examiné dans les conditions d'une fréquence de 10 Hz,d' une contrainte initiale de 10 %, et d'une contrainte dynamique de ± 0,25 %, a un module de conservation E'(-20 °C) à une température de -20 °C et un module de stockage E'(30 °C) à une température de 30 °C, le rapport entre les deux modules satisfaisant 2,0 ≤ E'(-20 °C)/E'(30 °C) ≤ 3,0.
(JA) 低温性能の低下を抑えながら、ウェット性能やドライ性能等の常温での性能を向上する。実施形態に係るタイヤトレッド用ゴム組成物は、ガラス転移温度が-60℃以下のスチレンブタジエンゴムを含むゴム成分100質量部に対し、シリカを含む補強性充填剤70質量部以上を含有し、周波数10Hz、初期歪み10%、動歪み±0.25%の条件で測定した加硫物の温度-20℃での貯蔵弾性率E'(-20℃)と温度30℃での貯蔵弾性率E'(30℃)の比が、2.0≦E'(-20℃)/E'(30℃)≦3.0を満たす。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)