Lg Chem, Ltd

Dae June Joe

Won Mun Choi

Ji Eun Kim

Won Taeck Lim

Seung Ho Choi

Choong Hoon Lee

Bun Yeoul Lee

Seungwhan Jung

Jong Joo Ha

Beomdoo Seo

Ui Gab Joung

Eun Jung Lee

Min Soo Kim

Eun Gyeong Lee

Eun-Jung Lee

Cheol Jae Kim

The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

Modified conjugated diene-based polymer and method of preparing the same

A cleaning liquid composition is provided. More particularly, a cleaning liquid composition includes a transition metal compound represented by Chemical Formula 1 (see the detailed description of the present invention); and a hydrocarbon-based solvent, and a cleaning method of a polymerization apparatus using the same.

Cleaning liquid composition and method for cleaning polymerization apparatus using same

The present invention relates to a modifier represented by Formula 1, a method for preparing the same, a modified conjugated diene-based polymer including a functional group derived from the modifier and having a high modification ratio, and a method for preparing the polymer.

Modified conjugated diene-based polymer and method for preparing the same

The present invention relates to a substituted styrene-based compound represented by Formula 1 (refer to the specification and the scope of the claims), a method of preparing the styrene-based compound, a modified polymer including a functional group derived from the substituted styrene-based compound, a method of preparing the modified polymer, a rubber composition including the modified polymer, and a molded article manufactured from the rubber composition.

Modified monomer, modified polymer including the same, and methods of preparing the same

The present invention relates to a compound represented by Formula 1, a method for preparing the same, and a modified conjugated diene-based polymer having a high modification ratio and including a functional group derived from the compound.

Compound and modified conjugated diene-based polymer including functional group derived therefrom

An amino silane-based compound, methods of preparing the same, and a modified conjugated diene-based polymer including an amino silane-based functional group are disclosed herein. In an embodiment, the amino silane-based compound is represented by Formula 1:  Ris a divalent hydrocarbon group having 1 to 30 carbon atoms, R, R, R, and Rare each independently a monovalent hydrocarbon group having 1 to 30 carbon atoms, Ris a divalent hydrocarbon group having 1 to 10 carbon atoms, j and k are each independently 0 or 1, n is an integer selected from 1 to 10, wherein at least one of Ror Ris the glycol unit.

Amino silane-based compound, method of preparing the same, and modified conjugated diene-based polymer including the compound

The present invention relates to a modified polymer having a high modification ratio and an excellent affinity with a filler, a method of preparing the same, a rubber composition including the modified polymer, and a molded article prepared from the rubber composition. The modified polymer according to the present invention may exhibit a high modification ratio by including functional groups in a polymer main chain and on at least one end thereof, and thus, an affinity with a filler, such as silica, may be excellent. Also, the rubber composition according to the present invention may have excellent processability by including the modified polymer having an excellent affinity with the filler, and, as a result, a processed product (e.g., tire) prepared by using the rubber composition may have excellent tensile strength, abrasion resistance, and wet road surface resistance.

Modified polymer, method of preparing the same, and rubber composition including the modified polymer

Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amido or alcoxy group is introduced is coordinated, a method of synthesizing the same, and olefin polymerization using the transition metal complex. Compared to a conventional transition metal complex having a silicon bridge and an oxido ligand, the transition metal complex has a phenylene bridge, so that a monomer easily approaches the transition metal complex in terms of structure and a pentagon ring structure of the transition metal complex is stably maintained. The catalyst composition including the transition metal complex is used to synthesize a polyolefin copolymer having a very low density less than 0.910 g/cc.

Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositions

Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amine-based group is introduced is coordinated, a method of synthesizing the same, and olefin polymerization using the transition metal complex In the novel transition metal complex, an imino phenyl group is not cross-linked to a metal atom and directly introduced to a cyclopentadiene (Cp) ring. The catalyst composition including the transition metal compound is used to obtain a polyolefin copolymer having a very low density less than 0.910 g/cc.

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Daejeon, South Korea

Dae June Joe