METHOD FOR PRODUCING WET MASTER BATCH, WET MASTER BATCH FORMED BY THE SAME METHOD, AND RUBBER COMPOSITION AND TIRE FORMED BY USING THE WET MASTER BATCH

• Main Authors: SOMENO KAZUAKI, YANAGISAWA KAZUHIRO
• Format: Patent
• Language: English
• Published: 28.12.2006
• 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; DEVICES OR ARRANGEMENTS RELATED TO TYRES; GENERAL PROCESSES OF COMPOUNDING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; 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; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide a method for producing a wet master batch, imparting processability, reinforcing property and abrasion resistance to a rubber composition and without reducing destruction resistant characteristics in the drying process of the rubber composition. SOLUTION: This method for continuously producing the wet master batch by mixing for coagulating slurry solution containing a filler with rubber solution, separating a solid portion from the coagulation liquid containing a coagulated material, dehydrating, then by using a multiple-axial kneading extruder, extruding the solid portion fed into a barrel of an elevated temperature with a multiple number of screws to heat for evaporating a water content in the solid portion for drying is provided by using the multiple-axial kneading extruder having an opening area of the ejection port 12a of ≥75 % area of the barrel opening part 2a in drying the solid portion. COPYRIGHT: (C)2007,JPO&INPIT