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1. (WO2019044959) RUBBER COMPOSITION, INNER PERIPHERAL COVER RUBBER, CONVEYOR BELT, AND BELT CONVEYOR
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Pub. No.: WO/2019/044959 International Application No.: PCT/JP2018/032087
Publication Date: 07.03.2019 International Filing Date: 30.08.2018
IPC:
C08L 9/00 (2006.01) ,B65G 15/32 (2006.01) ,C08K 3/04 (2006.01) ,C08K 3/06 (2006.01) ,C08L 7/00 (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
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
G
TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
15
Conveyers having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
30
Belts or like endless load-carriers
32
made of rubber or plastics
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
02
Elements
06
Sulfur
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
Applicants:
株式会社ブリヂストン BRIDGESTONE CORPORATION [JP/JP]; 東京都中央区京橋三丁目1番1号 1-1, Kyobashi 3-chome, Chuo-ku, Tokyo 1048340, JP
Inventors:
石川 哲也 ISHIKAWA, Tetsuya; JP
Agent:
大谷 保 OHTANI, Tamotsu; JP
滝沢 喜夫 TAKIZAWA, Yoshio; JP
平澤 賢一 HIRASAWA, Kenichi; JP
関根 由布 SEKINE, Yu; JP
Priority Data:
2017-16865201.09.2017JP
Title (EN) RUBBER COMPOSITION, INNER PERIPHERAL COVER RUBBER, CONVEYOR BELT, AND BELT CONVEYOR
(FR) COMPOSITION DE CAOUTCHOUC, CAOUTCHOUC POUR COUVERTURE PÉRIPHÉRIQUE INTÉRIEURE, COURROIE DE TRANSPORTEUR, ET TRANSPORTEUR À COURROIE
(JA) ゴム組成物、内周カバーゴム、コンベアベルト及びベルトコンベア
Abstract:
(EN) Provided is a rubber composition which is superior in all of durability, energy-saving properties, and dimensional stability in rolling. This rubber composition contains: (A) a diene polymer; (B) a carbon black including a carbon black (b-1) having a nitrogen adsorption specific surface area of more than 100 m2/g and a dibutyl phthalate oil absorption of 100-140 ml/100 g, and a carbon black (b-2) having a nitrogen adsorption specific surface area of less than 60 m2/g and a dibutyl phthalate oil absorption of 110 ml/100 g or more; (C) sulfur; and (D) a vulcanization accelerator, wherein the total contained amount of the carbon black (b-1) and the carbon black (b-2) is 25-55 parts by mass with respect to 100 parts by mass of the diene polymer (A), the contained amount of the vulcanization accelerator (D) is 1.5-2.5 parts by mass with respect to 100 parts by mass of the diene polymer (A), and the mass ratio (sulfur/vulcanization accelerator) of the contained amount of the sulfur (C) to the vulcanization accelerator (D) is 0.4-0.8.
(FR) L'invention concerne une composition de caoutchouc qui est supérieure dans toutes les propriétés de durabilité, économie d'énergie et stabilité dimensionnelle lors du laminage. La composition de caoutchouc selon l'invention contient : (A) un polymère diénique ; (B) du noir de carbone dont un noir de carbone (b-1) ayant une surface spécifique d'adsorption d'azote supérieure à m2/g et une absorption d'huile de phtalate de dibutyle de 100 à 140 ml/100 g, et un noir de carbone (b-2) ayant une surface spécifique d'adsorption d'azote inférieure à 60 m2/g et une absorption d'huile de phtalate de dibutyle de 110 ml/100 g ou plus ; (C) du soufre ; et (D) un accélérateur de vulcanisation, où la quantité totale contenue de noir de carbone (b-1) et de noir de carbone (b-2) est de 25 à 55 parties en poids pour 100 parties en poids de polymère diénique (A), la quantité contenue d'accélérateur de vulcanisation (D) est de 1,5 à 2,5 parties en poids pour 100 parties en poids de polymère diénique (A), et le rapport en poids (soufre/accélérateur de vulcanisation) de la quantité contenue de soufre (C) à l'accélérateur de vulcanisation (D) est de 0,4 à 0,8.
(JA) 耐久性と、省エネルギー性と、圧延の寸法安定性の全てに優れたゴム組成物を提供すること。 ((A)ジエン系重合体、(B)窒素吸着比表面積が100m2/gを超え、かつジブチルフタレート吸油量が100~140ml/100gであるカーボンブラック(b-1)と、窒素吸着比表面積が60m2/g未満であり、かつジブチルフタレート吸油量が110ml/100g以上であるカーボンブラック(b-2)と、を含有するカーボンブラック、(C)硫黄、及び、(D)加硫促進剤を含有し、(A)ジエン系重合体100質量部に対する、前記カーボンブラック(b-1)及び前記カーボンブラック(b-2)の合計含有量が、25~55質量部であり、(A)ジエン系重合体100質量部に対する(D)加硫促進剤の含有量が、1.5~2.5質量部であり、(D)加硫促進剤に対する(C)硫黄の含有量が、質量比(硫黄/加硫促進剤)で0.4~0.8である、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, 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)