A catalyst composition of the present disclosure comprises: a rare earth element-containing compound (A) containing a rare earth element compound or a reaction product thereof with a Lewis base, an organic metal compound (B) of a formula: YR1aR2bRc3 [wherein Y is a metal selected from Group 1, Group 2, Group 12, and Group 13 of the periodic table, le and R2 are each a hydrocarbon groups having 1 to 10 carbon atoms or a hydrogen atom, R3 is a hydrocarbon group having 1 to 10 carbon atoms, a is 1 and b and c are 0 when Y is a metal in Group 1, a and b are 1 and c is 0 when Y is a metal in Groups 2 and 12, and a, b, and c are all 1 when Y is a metal in Group 13], and a compound having a polar functional group (C).
CATALYST COMPOSITION, METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE-BASED POLYMER, MODIFIED CONJUGATED DIENE-BASED POLYMER, RUBBER COMPOSITION, AND TIRE
2021-06-24
Patent
Electronic Resource
English
IPC: | C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / B60C VEHICLE TYRES , Fahrzeugreifen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind |
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