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1. (WO2019044893) RUBBER COMPOSITION FOR HEAVY-DUTY TIRE, AND TIRE
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Pub. No.: WO/2019/044893 International Application No.: PCT/JP2018/031916
Publication Date: 07.03.2019 International Filing Date: 29.08.2018
IPC:
C08L 21/00 (2006.01) ,B60C 1/00 (2006.01) ,B60C 15/06 (2006.01) ,C08K 3/04 (2006.01) ,C08K 3/36 (2006.01) ,C08K 5/54 (2006.01) ,C08L 7/00 (2006.01) ,C08L 9/00 (2006.01) ,C08L 15/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
21
Compositions of unspecified rubbers
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
15
Tyre beads, e.g. ply turn-up or overlap
06
Flipper strips, fillers, or chafing strips
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
02
Elements
04
Carbon
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
54
Silicon-containing compounds
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
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
15
Compositions of rubber derivatives
Applicants:
株式会社クラレ KURARAY CO., LTD. [JP/JP]; 岡山県倉敷市酒津1621番地 1621, Sakazu, Kurashiki-shi, Okayama 7100801, JP
Inventors:
香田 大輔 KODA Daisuke; JP
神原 浩 KANBARA Hiroshi; JP
Agent:
特許業務法人SSINPAT SSINPAT PATENT FIRM; 東京都品川区西五反田七丁目13番6号 五反田山崎ビル6階 Gotanda Yamazaki Bldg. 6F, 13-6, Nishigotanda 7-chome, Shinagawa-ku, Tokyo 1410031, JP
Priority Data:
2017-16862901.09.2017JP
Title (EN) RUBBER COMPOSITION FOR HEAVY-DUTY TIRE, AND TIRE
(FR) COMPOSITION DE CAOUTCHOUC DESTINÉE À UN PNEUMATIQUE POUR CHARGEMENT LOURD, ET PNEUMATIQUE
(JA) 重荷重タイヤ用ゴム組成物およびタイヤ
Abstract:
(EN) A rubber composition for heavy-duty tires which exhibits excellent wet grip performance and steering stability, and a tire tread, a bead filler, a tire belt and a heavy-duty tire using said rubber composition in a portion thereof are provided. This rubber composition for a heavy-duty tire contains, for 100 parts by mass of a solid rubber (A), 0.1-50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound represented by formula (1), and 20-200 parts by mass of a filler (C), wherein the modified liquid diene rubber (B) satisfies (i) and (ii) below. (i) The weight average molecular weight (Mw) is 1,000 to 120,000 (ii) The vinyl content is greater than or equal to 30 mol% and less than 70 mol%.
(FR) L'invention fournit une composition de caoutchouc destinée à un pneumatique pour chargement lourd qui se révèle excellente en termes de performances d'adhérence sur route mouillée et de stabilité de conduite. L'invention fournit également une bande de roulement de pneumatique, un bourrage sur tringle, une ceinture pour pneumatique et un pneumatique pour chargement lourd mettant en œuvre cette composition de caoutchouc de manière partielle. Plus précisément, l'invention concerne une composition de caoutchouc destinée à un pneumatique pour chargement lourd qui comprend pour 100 parties en masse d'un caoutchouc solide (A), 0,1 à 50 parties en masse d'un caoutchouc diène liquide modifié (B) possédant un groupe fonctionnel dérivé d'un composé silane représenté par la formule (1), et 20 à 200 parties en masse d'une charge (C). Ledit caoutchouc diène liquide modifié (B) satisfait les points (i) et (ii) suivants : (i) une masse moléculaire moyenne en poids (Mw) supérieure ou égale à 1000 et inférieure ou égale à 120000, et (ii) une teneur en vinyle supérieure ou égale à 30% en moles et inférieure à 70% en moles.
(JA) ウェットグリップ性能、操縦安定性に優れた重荷重タイヤ用ゴム組成物、これを一部に用いたタイヤトレッド、ビードフィラー、タイヤ用ベルト及び重荷重タイヤを提供する。 固形ゴム(A)100質量部に対して、下記式(1)で表されるシラン化合物に由来する官能基を有する変性液状ジエン系ゴム(B)を0.1~50質量部、及びフィラー(C)を20~200質量部含有する重荷重タイヤ用ゴム組成物であり、前記変性液状ジエン系ゴム(B)が、下記(i)~(ii)、(i)重量平均分子量(Mw)が1,000以上120,000以下、(ii)ビニル含有量が30モル%以上70モル%未満、を満たす、重荷重タイヤ用ゴム組成物。
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)