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1. WO2020068128 - TIRE TREAD WITH LOW TG FUNCTIONALIZED SBR

Publication Number WO/2020/068128
Publication Date 02.04.2020
International Application No. PCT/US2018/053531
International Filing Date 28.09.2018
IPC
B60C 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
1Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
C08L 15/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
15Compositions of rubber derivatives
CPC
B60C 1/0016
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
1Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
0016Compositions of the tread
B60C 2011/0025
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
11Tyre tread bands; Tread patterns; Anti-skid inserts
0008characterised by the tread rubber
0016Physical properties or dimensions
0025Modulus or tan delta
C08L 15/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
15Compositions of rubber derivatives
C08L 9/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
06Copolymers with styrene
Applicants
  • COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN [FR]/[FR]
  • PIFFARD, Olivier [FR]/[US] (US)
  • BERNARD, Abigail [US]/[US] (US)
Inventors
  • PIFFARD, Olivier
  • BERNARD, Abigail
Agents
  • CAMPIGOTTO, Frank J
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TIRE TREAD WITH LOW TG FUNCTIONALIZED SBR
(FR) BANDE DE ROULEMENT DE PNEUMATIQUE AVEC SBR FONCTIONNALISÉ À FAIBLE TG
Abstract
(EN)
Rubber compositions useful for a tire tread having improved rolling resistance and wet and dry braking having greater than 80 phr of a modified styrene-butadiene rubber (SBR) component having within its polymer chain an alkoxysilane moiety bearing an amine functional group and optionally up to 20 phr of an additional highly unsaturated diene elastomer. The rubber compositions may further include a plasticizing system having a plasticizing resin with a glass transition temperature Tg of at least 25 °C and a plasticizing liquid, wherein the effective amount of the plasticizing system provides a shear modulus G* for the rubber composition as measured at 60 °C of between 0.7 MPa and 1.1 MPa.
(FR)
Compositions de caoutchouc utiles pour une bande de roulement de pneumatique ayant une résistance au roulement et un freinage par temps humide et sec améliorés ayant plus de 80 phr d'un composant de caoutchouc butadiène-styrène (SBR) modifié ayant dans sa chaîne polymère une fraction alcoxysilane portant un groupe fonctionnel amine et éventuellement jusqu'à 20 phr d'un élastomère diène fortement insaturé supplémentaire. Les compositions de caoutchouc peuvent en outre comprendre un système plastifiant ayant une résine plastifiante présentant une température de transition vitreuse Tg d'au moins 25 °C et un liquide plastifiant, la quantité efficace du système plastifiant fournissant un module de cisaillement G* pour la composition de caoutchouc tel que mesuré à 60°C compris entre 0,7 MPa et 1,1 MPa.
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