A tread rubber composition having improved abrasion resistance is provided. The tread rubber composition comprises a conjugated diene polymer or copolymer, at least one filler, from 2 to 10 phr of liquid polybutadiene, from 2 to 5 phr of zinc oxide and from 1 to 100 phr of process oil. The liquid polybutadiene is functionalized by reaction with unsaturated acid anhydride, has a number average molecular weight of from 3 to 8 kg/mol and an acid number of from 40 to 80. Also provided are methods for preparing the tread rubber composition comprising mixing of the foregoing ingredients by master-batch and final batch steps whereby the abrasion resistance of the tread rubber composition is improved.
TREAD RUBBER COMPOUNDS HAVING IMPROVED ABRASION RESISTANCE USING FUNCTIONALIZED LIQUID POLYBUTADIENE
LAUFFLÄCHENGUMMIVERBINDUNGEN MIT VERBESSERTER ABRIEBFESTIGKEIT MIT FUNKTIONALISIERTEM FLÜSSIGEM POLYBUTADIEN
COMPOSÉS DE CAOUTCHOUC POUR BANDE DE ROULEMENT AYANT UNE RÉSISTANCE À L'ABRASION AMÉLIORÉE CONTENANT UN POLYBUTADIÈNE LIQUIDE FONCTIONNALISÉ
2018-08-22
Patent
Electronic Resource
English
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
Rubber composition for tire tread having improved abrasion resistance and rolling resistance
European Patent Office | 2019
|Rubber composition for tire tread with improved abrasion resistance
European Patent Office | 2018
|RUBBER COMPOSITION AND PNEUMATIC TIRE HAVING TREAD WITH HYDROXY-TERMINATED POLYBUTADIENE
European Patent Office | 2020
|European Patent Office | 2018
|