RUBBER FORMULATIONS COMPRISING FUNCTIONALIZED CONJUGATED DIENE POLYMER, NATURAL RUBBER, AND REINFORCING FILLER

• Main Authors: WEI, Xiaoyu, MILLER, Seth Martin, AHMED, Shammi, BHAGAT, Vrushali, WHYTE, Jamie Lynn, SALAMANT, Walter Anthony
• Format: Patent
• Language: English; French
• Published: 06.07.2023
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Embodiments of the present disclosure are directed to rubber formulations, wherein the rubber formulations comprise functionalized conjugated diene polymer, natural rubber, and reinforcing filler comprising at least one of silica and carbon black. The functionalized conjugated diene polymer has a functional group, a vinyl content greater than or equal to 50%, and a weight average molecular weight Mw of about 75,000 g/mol to about 1,000,000 g/mol. Des modes de réalisation de la présente invention concernent des formulations de caoutchouc, les formulations de caoutchouc comprenant un polymère diène conjugué fonctionnalisé, un caoutchouc naturel et une charge de renforcement comprenant de la silice et/ou du noir de carbone. Le polymère diène conjugué fonctionnalisé a un groupe fonctionnel, une teneur en vinyle supérieure ou égale à 50 %, et un poids moléculaire moyen en poids Mw d'environ 75 000 g/mol à environ 1 000 000 g/mol.