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1. (WO2019026477) PNEUMATIC TIRE
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Pub. No.: WO/2019/026477 International Application No.: PCT/JP2018/024220
Publication Date: 07.02.2019 International Filing Date: 26.06.2018
IPC:
B60C 1/00 (2006.01) ,B60C 5/00 (2006.01) ,B60C 11/03 (2006.01) ,C08K 3/36 (2006.01) ,C08K 5/45 (2006.01) ,C08L 7/00 (2006.01) ,C08L 9/06 (2006.01) ,C08L 57/02 (2006.01)
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
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
5
Inflatable pneumatic tyres or inner tubes
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
11
Tyre tread bands; Tread patterns; Anti-skid inserts
03
Tread patterns
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
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5
Use of organic ingredients
36
Sulfur-, selenium-, or tellurium-containing compounds
45
Heterocyclic compounds having sulfur in the ring
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
06
Copolymers with styrene
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
57
Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
02
Copolymers of mineral oil hydrocarbons
Applicants:
横浜ゴム株式会社 THE YOKOHAMA RUBBER CO., LTD. [JP/JP]; 東京都港区新橋5丁目36番11号 36-11, Shimbashi 5-chome, Minato-ku, Tokyo 1058685, JP
Inventors:
村瀬 慶介 MURASE Keisuke; JP
Agent:
清流国際特許業務法人 SEIRYU PATENT PROFESSIONAL CORPORATION; 東京都中央区築地1丁目4番5号 第37興和ビル 37 Kowa Building, 4-5, Tsukiji 1-chome, Chuo-ku, Tokyo 1040045, JP
昼間 孝良 HIRUMA, Takayoshi; JP
境澤 正夫 SAKAIZAWA, Masao; JP
Priority Data:
2017-14935801.08.2017JP
Title (EN) PNEUMATIC TIRE
(FR) PNEUMATIQUE
(JA) 空気入りタイヤ
Abstract:
(EN) Provided is a pneumatic tire which has a tread part that is configured from a rubber composition for treads containing silica, and which has improved rolling resistance and improved wear resistance during high-speed travel, while maintaining excellent dry performance and excellent wet performance. According to the present invention, a tread part 1 is provided with a longitudinal groove 21 that extends in the tire circumferential direction and/or a transverse groove 22 that extends in the tire width direction; the groove area ratio Sin in the vehicle inside region of the tread part 1 is set to 30-39%; the difference ∆S between the groove area ratio Sin and the groove area ratio Sout in the vehicle outside region is set to 6-14%; and the tread part 1 is configured from a rubber composition for treads, which is obtained by blending from 80 parts by mass to 150 parts by mass of silica and from 0.5 part by mass to 10 parts by mass of a cyclic polysulfide per 100 parts by mass of a diene rubber that is composed of from 10 parts by mass to 30 parts by mass of a natural rubber and from 70 parts by mass to 90 parts by mass of a solution polymerized styrene butadiene rubber and/or an emulsion polymerized styrene butadiene rubber, and by additionally blending an alkyl triethoxy silane that has an alkyl group having 3-20 carbon atoms thereinto in an amount of from 3% by mass to 10% by mass relative to the amount of silica.
(FR) L'invention concerne un pneumatique qui comprend une partie bande de roulement qui est configurée à partir d'une composition de caoutchouc pour des bandes de roulement contenant de la silice et qui présente une résistance au roulement améliorée et une résistance à l'usure améliorée pendant un déplacement à grande vitesse tout en conservant d'excellentes performances sur route sèche et d'excellentes performances sur route humide. Selon la présente invention, une partie bande de roulement (1) est dotée d'une rainure longitudinale (21) qui s'étend dans la direction circonférentielle du pneu et/ou d'une rainure transversale (22) qui s'étend dans la direction de la largeur du pneu ; le rapport de surface de rainure Sin dans la région intérieure du véhicule de la partie bande de roulement (1) est réglé à 30 à 39 % ; la différence ∆s entre le rapport de surface de rainure Sin et le rapport de surface de rainure Sout dans la région extérieure de véhicule est défini à 6 à 14 % ; et la partie bande de roulement (1) est configurée à partir d'une composition de caoutchouc pour des bandes de roulement, qui est obtenue par le mélange de 80 parties en masse à 150 parties en masse de silice et de 0,5 partie en masse à 10 parties en masse d'un polysulfure cyclique pour 100 parties en masse d'un caoutchouc diénique qui est composé de 10 parties en masse à 30 parties en masse d'un caoutchouc naturel et de 70 parties en masse à 90 parties en masse d'un caoutchouc de styrène butadiène polymérisé en solution et/ou d'un caoutchouc de styrène butadiène polymérisé en émulsion, et par le mélange supplémentaire d'un alkyltriéthoxy silane qui comprend un groupe alkyle comprenant de 3 à 20 atomes de carbone dans ce dernier dans une quantité de 3 % en masse à 10 % en masse par rapport à la quantité de silice.
(JA) トレッド部がシリカを含むトレッド用ゴム組成物で構成された空気入りタイヤであって、優れたドライ性能およびウェット性能を維持しながら、転がり抵抗や高速走行時の耐摩耗性を向上した空気入りタイヤを提供する。トレッド部1にタイヤ周方向に沿って延在する縦溝21および/またはタイヤ幅方向に沿って延在する横溝22を形成し、トレッド部1の車両内側領域での溝面積比率Sinを30%~39%にし、溝面積比率Sinと車両外側領域での溝面積比率Sout との差ΔSを6%~14%にし、且つ、トレッド部1を、天然ゴム10質量部~30質量部と溶液重合スチレンブタジエンゴムおよび/または乳化重合スチレンブタジエンゴム70質量部~90質量部とからなるジエン系ゴム100質量部に対して、シリカ80質量部~150質量部と、環状ポリスルフィド0.5質量部~10質量部とを配合し、更に炭素数が3~20であるアルキル基を有するアルキルトリエトキシシランをシリカ量に対して3質量%~10質量%配合したトレッド用ゴム組成物で構成する。
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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, JP, 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)