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1. (WO2018100994) RUBBER COMPOSITION FOR STUDLESS TIRE AND STUDLESS TIRE
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Pub. No.: WO/2018/100994 International Application No.: PCT/JP2017/040299
Publication Date: 07.06.2018 International Filing Date: 08.11.2017
IPC:
C08L 7/00 (2006.01) ,B60C 1/00 (2006.01) ,C08L 9/00 (2006.01) ,C08L 91/00 (2006.01) ,C08L 101/00 (2006.01)
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
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
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
91
Compositions of oils, fats or waxes; Compositions of derivatives thereof
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
101
Compositions of unspecified macromolecular compounds
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:
岩國 佳祐 IWAKUNI, Keisuke; 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:
2016-23300130.11.2016JP
Title (EN) RUBBER COMPOSITION FOR STUDLESS TIRE AND STUDLESS TIRE
(FR) COMPOSITION DE CAOUTCHOUC POUR PNEUMATIQUE SANS CRAMPON, ET PNEUMATIQUE SANS CRAMPON
(JA) スタッドレスタイヤ用ゴム組成物及びスタッドレスタイヤ
Abstract:
(EN) A rubber composition for a studless tire pertaining to an embodiment comprises: a rubber component containing natural rubber and polybutadiene rubber; oil-absorbing polymer particles comprising a polymer having a glass transition temperature of -70 to -20°C and a molecular weight distribution of less than 3.0, said oil-absorbing polymer particle having an oil absorption of 100 to 1500 mL/100 g; and oil. The oil-absorbing-polymer-particle content is 0.5 to 25 parts by mass relative to 100 parts by mass of the rubber component. This configuration makes it possible to improve performance on ice and rolling-resistance performance.
(FR) La composition de caoutchouc pour pneumatique sans crampon de l'invention contient : un composant caoutchouc contenant un caoutchouc naturel et un caoutchouc polybutadiène; des particules de polymère absorbant l'huile constituées d'un polymère de température de transition vitreuse comprise entre -70 et -20℃ et de répartition de masse moléculaire inférieure à 3,0, et présentant une quantité d'huile absorbée comprise entre 100 et 1500ml/100g; et une huile. La teneur en particules de polymère absorbant l'huile, est comprise entre 0,5 et 25 parties en masse pour 100 parties en masse dudit composant caoutchouc. Ainsi, il est possible d'améliorer les performances sur verglas et les performances de résistance au roulement.
(JA) 実施形態に係るスタッドレスタイヤ用ゴム組成物は、天然ゴム及びポリブタジエンゴムを含むゴム成分と、ガラス転移温度が-70~-20℃でありかつ分子量分布が3.0未満であるポリマーからなり吸油量が100~1500ml/100gである吸油性ポリマー粒子と、オイルとを含み、吸油性ポリマー粒子の含有量が前記ゴム成分100質量部に対して0.5~25質量部である。これにより、氷上性能と転がり抵抗性能を向上することができる。
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)