Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018007768) RUBBER COMPOSITION COMPRISING A BLEND OF NATURAL RUBBERS HAVING A MOLECULAR MASS DISTRIBUTION, DETERMINED BY SEC-MALS, THAT IS RESPECTIVELY UNIMODAL OR BIMODAL, METHOD FOR PREPARING SAME AND TYRE COMPONENT
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2018/007768 International Application No.: PCT/FR2017/051853
Publication Date: 11.01.2018 International Filing Date: 07.07.2017
IPC:
C08L 7/00 (2006.01) ,B60C 1/00 (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
Applicants:
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN [FR/FR]; 12, cours Sablon 63000 Clermont-Ferrand, FR
Inventors:
GRANET, Françoise; FR
Agent:
REGIMBEAU; Regimbeau 87 rue de Sèze 69477 Lyon Cedex 06, FR
Priority Data:
165651607.07.2016FR
Title (EN) RUBBER COMPOSITION COMPRISING A BLEND OF NATURAL RUBBERS HAVING A MOLECULAR MASS DISTRIBUTION, DETERMINED BY SEC-MALS, THAT IS RESPECTIVELY UNIMODAL OR BIMODAL, METHOD FOR PREPARING SAME AND TYRE COMPONENT
(FR) COMPOSITION DE CAOUTCHOUC COMPRENANT UN COUPAGE DE CAOUTCHOUCS NATURELS AYANT UNE DISTRIBUTION DE MASSE MOLÉCULAIRE, VUE EN SEC-MALS, RESPECTIVEMENT UNIMODALE OU BIMODALE, PROCÉDÉ DE PRÉPARATION ET COMPOSANT DE PNEUMATIQUE
Abstract:
(EN) The invention concerns a rubber composition made from at least: ─an elastomer matrix comprising natural rubber, ─a reinforcing filler, ─a crosslinking system, characterised in that said natural rubber is a blend (i) of a natural rubber having a molecular mass distribution, determined by SEC-MALS, that is bimodal and (ii) a natural rubber having a molecular mass distribution, determined by SEC-MALS, that is unimodal and having an initial plasticity index, P0, of less than 20, in weight proportions ranging from 90:10 to 20:80. The invention also concerns a method for preparing such a composition, a tyre component comprising same and a tyre comprising said component.
(FR) L'invention a pour objet une composition de caoutchouc à base d'au moins: ─une matrice élastomérique comprenant du caoutchouc naturel, ─une charge renforçante, ─un système de réticulation, caractérisée en ce que ledit caoutchouc naturel est un coupage(i) d'un caoutchouc naturel ayant une distribution de masse moléculaire, vue en SEC-MALS, bimodale et (ii) d'un caoutchouc naturel ayant une distribution de masse moléculaire, vue en SEC-MALS, unimodale et ayant un indice de plasticité initiale, P0, inférieur à 20, en des proportions massiques allant de 90:10 à 20:80. Elle concerne également un procédé de préparation d'une telle composition, un composant de pneumatique la comprenant et un pneumatique comprenant ce composant.
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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: French (FR)
Filing Language: French (FR)