SAL, COMPOSIÇÃO ELASTOMÉRICA, COMPONENTE DE PNEU, E, PNEU

• Main Authors: LUIGIA ROSSIELLO, THOMAS HANEL
• Format: Patent
• Language: Portuguese
• Published: 14.02.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; 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

A presente invenção se refere a novas composições elastoméricas antiozonizantes e antioxidante para pneus, distinguidas por volatilidade reduzida dos compostos ativos, processabilidade melhorada e sustentabilidade ambiental, eficácia anti-degradação aumentada e aparência de superfície melhorada. Em particular, as composições elastoméricas das invenções compreendem sais formados por ácidos AC da fórmula (I) R-(OCmH2m)w(OCnH2n)z?X (I) e aminas AM da fórmula (II) (II) As composições elastoméricas das invenções são particularmente adequadas para a fabricação de componentes do pneu, tais como, paredes laterais, bandas de rodagem e camada anti-abrasiva, componentes que no pneu são particularmente submetidos ao desgaste devido à combinação da ação de degradação de ozônio e tensões mecânicas. The present invention relates to new antioxidant and antiozonant elastomeric compositions for tyres, characterized by reduced volatility of the active compounds, improved processability and environmental sustainability, increased anti-degradation efficacy and improved surface appearance. In particular, the elastomeric compositions of the inventions comprise Salts formed by acids AC of formula (I) and amines AM of formula (II) The elastomeric compositions of the inventions are particularly suitable for the manufacture of tyre components such as sidewalls, treads and anti-abrasive layer, components that in the tyre are particularly subject to wear due to the combination of the degrading action of ozone and mechanical stresses.