Método para preparar uma composição de borracha curável de enxofre, composição de borracha e pneu

• Main Authors: GREGORY DANIEL ZARTMAN, ROBERTO CERRATO MEZA, WARREN JAMES BUSCH, FORCINITI LEANDRO, PAUL HARRY SANDSTROM, ZHAO JUNLING
• Format: Patent
• Language: Portuguese
• Published: 29.03.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; DEVICES OR ARRANGEMENTS RELATED TO TYRES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

método para preparar uma composição de borracha curável de enxofre, composição de borracha e pneu The invention relates to a phased rubber composition and tire tread thereof intended for heavy duty service such as for example a truck tire. The phased rubber composition comprises the product of blending a first rubber phase comprising cis 1,4-polybutadiene rubber and reinforcing filler comprising rubber reinforcing carbon black and a second rubber phase comprising natural cis 1,4-polyisoprene rubber and reinforcing filler comprising precipitated silica.