TIRE RUBBER COMPOSITIONS COMBINING BAGASSE-CONTAINING GUAYULE RUBBER WITH SILANE AND RELATED METHODS

• Main Authors: KIM, Hyeonjae, DEDECKER, Mark N
• Format: Patent
• Language: English; French
• Published: 23.06.2022
• 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; TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

Disclosed herein are methods for improving the rolling resistance of a tire rubber composition by providing a rubber composition including a rubber component which includes a majority by weight of guayule rubber where the guayule rubber includes a bagasse component, and a filler component where the filler component is free of silica, and including at least one silane in the rubber composition, where the at least one silane is selected from the group consisting of mercaptosilanes, blocked mercaptosilanes, and alkoxysilanes. Also disclosed is a tire rubber composition which comprises (a) 100 parts of a rubber component including a majority by weight of guayule rubber where the guayule rubber includes a bagasse component, (b) a filler component, where the filler component is free of silica, and (c) at least one silane selected from the group consisting of mercaptosilanes, blocked mercaptosilanes, and alkoxysilanes. La présente invention concerne des procédés pour l'amélioration de la résistance au roulement d'une composition de caoutchouc pour pneu par l'utilisation d'une composition de caoutchouc comprenant un composant de caoutchouc qui comprend une majorité en poids de caoutchouc de guayule, le caoutchouc de guayule comprenant un composant de bagasse, et un composant de charge, le composant de charge étant exempt de silice, et comprenant au moins un silane dans la composition de caoutchouc, ledit ou lesdits silanes étant choisis dans le groupe constitué par les mercaptosilanes, les mercaptosilanes bloqués et les alcoxysilanes. L'invention concerne également une composition de caoutchouc pour pneu qui comprend (a) 100 parties d'un composant de caoutchouc comprenant une majorité en poids de caoutchouc de guayule, le caoutchouc de guayule comprenant un composant de bagasse, (b) un composant de matière de charge, le composant de matière de charge étant exempt de silice, et (c) au moins un silane choisi dans le groupe constitué par les mercaptosilanes, les mercaptosilanes bloqués et les alcoxysilanes.