The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.
(X.sub.1).sub.aN(X.sub.2).sub.3-a[Formula 1] In Formula 1, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.

(X.sub.1).sub.aN(X.sub.2).sub.3-a[Formula 1]

In Formula 1, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.

(X.sub.1).sub.aN(X.sub.2).sub.3-a[Formula 1]

In Formula 1, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.
(X.sub.1).sub.aN(X.sub.2).sub.3-a[Formula 1] In Formula 1, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.
(X.sub.1).sub.aN(X.sub.2).sub.3-a[Formula 1] In Formula 1, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.
(X.sub.1).sub.a-M.sub.1-([Y-M.sub.2-(X.sub.2).sub.n-1]).sub.m-a[Formula 1] In Formula 1, a, m, n, M.sub.1, M.sub.2, X.sub.1, X.sub.2 and Y are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.
(X.sub.1).sub.a-M.sub.1-([Y-M.sub.2-(X.sub.2).sub.n-1]).sub.m-a[Formula 1] In Formula 1, a, m, n, M.sub.1, M.sub.2, X.sub.1, X.sub.2 and Y are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.
(X.sub.1).sub.aSn(X.sub.2).sub.4-a[Formula 1] In Formula 1, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition.
(X.sub.1).sub.aSn(X.sub.2).sub.4-a[Formula 1] In Formula 1, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition

(X.sub.1).sub.aSn(X.sub.2).sub.4-a[Formula 1]

wherein, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.