POLYMERIZATION CATALYST FOR CONJUGATED DIENE POLYMER, PROCESS FOR PRODUCING CONJUGATED DIENE POLYMER WITH THE SAME, RUBBER COMPOSITION FOR TIRE, AND RUBBER COMPOSITION FOR GOLF BALL

• Main Authors: SUZUKI, MICHINORI, ISHIGUCHI, KOUJI, OKAMOTO, NAOMI, EIKYUU, MITSUHARU, MURAKAMI, MASATO
• Format: Patent
• Language: English; French; German
• Published: 15.01.2014
• Subjects: AMUSEMENTS; APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING; BALL GAMES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; GAMES; HUMAN NECESSITIES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; SPORTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAINING EQUIPMENT; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

[Subject] A catalyst for polymerization of conjugated diene is provided, which facilitates manufacture of a conjugated diene polymer with a high 1,4-cis structure content, leaves less aluminum residue on polymerization, and has high activity. A method of manufacturing conjugated diene polymers using the catalyst is also provided. [Solution] A catalyst for polymerization of conjugated diene comprises (A) an yttrium compound; (B) an ionic compound including a non-coordinate anion and a cation; and (C) an organometallic compound including an element selected from the groups 2, 12 and 13 of the periodic table.