METHOD OF MAKING A RUBBER COMPOSITION WITH IMPROVED PROCESSABILITY

• Main Authors: SABADIN DE AZEVEDO, Pedro Henrique, BERGMAN, Brian R, CATO, Anthony
• Format: Patent
• Language: English; French
• Published: 04.04.2024
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

An improved rubber composition process having improved extrudate properties and exhibiting superior tolerance to aging when subject to multi-step mixing process and in particular to a mixing process where the rubber composition is mixed in a first mixer, cooled by passing between a pair of cylinders, then mixed in a second mixer, the composition comprised of a disulfide silane. Procédé de composition de caoutchouc amélioré ayant des propriétés d'extrudat améliorées et présentant une tolérance supérieure au vieillissement lorsqu'il est soumis à un processus de mélange en plusieurs étapes et en particulier à un processus de mélange dans lequel la composition de caoutchouc est mélangée dans un premier mélangeur, refroidie en passant entre une paire de cylindres, puis mélangée dans un second mélangeur, la composition étant constituée d'un disulfure de silane.