METHOD FOR PRODUCING POLYMERIZATION CATALYST COMPOSITION, POLYMERIZATION CATALYST COMPOSITION, METHOD FOR PRODUCING POLYMER COMPOSITION, AND POLYMER COMPOSITION

• Main Authors: MATSUSHITA, JUNKO, KAITA, SHOJIRO
• Format: Patent
• Language: English; French; German
• Published: 18.11.2015
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A method for producing a polymer containing silica that does not involve long kneading time, and a polymer composition having an intended low heat generation property. A polymerization catalyst composition is produced by mixing and aging a second element and a third element, and then adding a first element to the mixture to react the first element with the mixture. The first element contains a compound that contains a rare earth metal element, the second element contains a compound represented by the following formula (X), and the third element contains silica. YR 1 a R 2 b R 3 c (X) (In the formula, Y is a metal; R 1 and R 2 are hydrogen atoms or hydrocarbon groups; and R 3 is a hydrocarbon group, and R 1 , R 2 , and R 3 are the same as or different from each other, a, b, and c are 0 or 1.)