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1. (WO2009138460) RUBBER COMPOSITION FOR TYRE INCLUDING A NOVEL ANTI-OXIDANT SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/138460    International Application No.:    PCT/EP2009/055842
Publication Date: 19.11.2009 International Filing Date: 14.05.2009
IPC:
C08K 5/18 (2006.01), C08L 9/00 (2006.01), B60C 1/00 (2006.01), C08K 3/04 (2006.01)
Applicants: SOCIETE DE TECHNOLOGIE MICHELIN [FR/FR]; 23, rue Breschet F-63000 Clermont-Ferrand (FR) (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BR, BW, BY, BZ, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW only).
Michelin Recherche et Technique S.A. [CH/CH]; Route Louis Braille 10 CH-1763 Granges-Paccot (CH) (For All Designated States Except US).
ARAUJO DA SILVA, José Carlos [FR/FR]; (FR) (For US Only).
REMY, Arnaud [FR/FR]; (FR) (For US Only)
Inventors: ARAUJO DA SILVA, José Carlos; (FR).
REMY, Arnaud; (FR)
Agent: COHEN, Sylvia; (FR)
Priority Data:
0853145 15.05.2008 FR
Title (EN) RUBBER COMPOSITION FOR TYRE INCLUDING A NOVEL ANTI-OXIDANT SYSTEM
(FR) COMPOSITION DE CAOUTCHOUC POUR PNEUMATIQUE INCORPORANT UN NOUVEAU SYSTEME ANTI-OXYDANT
Abstract: front page image
(EN)The invention relates to a rubber composition particularly intended for a tyre and including at least one diene elastomer, a reinforcing filler, a cross-linking system and an anti-oxidant system, characterised in that said anti-oxidant system includes at least two anti-oxidants A and B, A being an N-alkyl-N'-phenyl-paraphenylenediamine of the formula (I) and B being a 4,4',4'-tris(alkylamino)-triphenylamine of the formula (II), wherein R1, R2, R3, R4 are identical or different and each are a linear or branched alkyl group including 1 to 12 carbon atoms or a cycloalkyl group including 5 to 8 carbon atoms, the A/B weight ratio ranging from 0.1 to 5.0. Said anti-oxidant system imparts to the composition of the invention a better long-term resistance to fatigue and crack propagation.
(FR)Composition de caoutchouc notamment pour pneumatique à base d'au moins un élastomère diénique, une charge renforçante, un système de réticulation et un système antioxydant, caractérisée en ce que ledit système antioxydant comporte au moins deux antioxydants "A" et "B" : A. une N-alkyl-N'-phényl-paraphénylènediamine répondant à la formule (I) : B. une 4,4',4'-tris(alkylamino)-triphénylamine répondant à la formule (II): formules dans lesquelles R1, R2, R3, R4, identiques ou différents, représentent chacun un groupe alkyle, linéaire ou ramifié, ayant de 1 à 12 atomes de carbone ou un groupe cycloalkyle ayant de 5 à 8 atomes de carbone, le rapport pondéral A/B étant compris entre 0,1 et 5,0. Un tel système antioxydant confère à la composition de l'invention une meilleure résistance sur le long terme à la fatigue et à la propagation de fissures.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)