Inventor

LEE BUN YEOUL

KR59 patents

⚠️ This page may combine multiple inventors who share the name “LEE BUN YEOUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LEE BUN YEOUL

LG CHEMICAL LTD

Bimetallic zinc complex and process of producing polycarbonate using the same as polymerization catalyst

Process for the preparation of olefinic polymers using metallocene catalyst

Method for producing supported metallocene catalyst and olefin polymerization process using the same

Catalyst for olefin polymerization and method for preparing polyolefins

Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition

Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition

Process for the preparation of olefinic polymers using supported metallocene catalyst

Method for olefin polymerization with recycling of co-catalyst

Method of recycling cocatalyst for olefin polymerization conducted with metallocene catalyst

Anionic polymerization initiator, anionic polymerization initiator composition, and production method therefor

Method for producing block copolymer composition

Block copolymer composition

Block copolymer composition

Block copolymer composition

Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition

Method for preparing transition metal complexes, transition metal complexes prepared using the method, catalyst composition containing the complexes

Supported metallocene catalyst and olefin polymerization using the same

Supported metallocene catalyst and olefin polymerization using the same

Metallocene compounds and their use for olefin polymerization

Method of preparing fulvene compounds and method of preparing ansa-metallocene compounds using the compounds

Method for preparing cocatalyst compound using anhydrous hydrocarbon solvent

Ansa-metallocene compound, process of preparing the same, and process of preparing polyolefin using the same

Catalyst composition comprising Group 4 transition metal complexes and method for preparing polyolefins using the same

Transition metal complexes and preparation methods thereof

Ligand compound, transition metal compound, and catalyst composition including the same

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

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

Ligand compound, transition metal compound, and catalyst composition including the same

LEE BUN-YEOUL

Group 4 metal compound containing thiophene-fused cyclopentadienyl ligand derived from tetraquinoline derivative and olefin polymerization using the same

Catalyst composition for olefin polymerization and preparation method for polyolefin using the same

Method for preparing olefin-diene copolymer using transition metal compound containing thiophene-fused cyclopentadienyl ligand

Method for preparing polypropylene using transition metal compound containing thiophene-fused cyclopentadienyl ligand

LOTTE CHEMICAL CORP

Group 4 metal compound containing thiophene-fused cyclopentadienyl ligand derived from tetraquinoline derivative and olefin polymerization using the same

High molecular weight aliphatic polycarbonate copolymer and preparation method thereof

High-molecular weight aliphatic polycarbonate prepared using base catalyst

LEE BUN YEOUL

Process for producing polycarbonates and a coordination complex used therefor

Process for producing polycarbonates and a coordination complex used therefor

JEONG JI SU

Catalytic system of nitrate anions for CO2/epoxide copolymerization

Preparation of poly(alkylene carbonate) containing cross-linked high molecular weight chains

JEONG JISU

Precise control of molecular weight and chain shape control in carbon dioxide/epoxide alternating copolymerization and preparation of low molecular weight poly(alkylene carbonate) thereby

Block and graft copolymers of poly(alkylene carbonate) and various polymers

AJOU UNIV INDUSTRY—ACADEMIC COOPERATION FOUNDATION

Chrome compound, catalyst system using same, and method for preparing ethylene oligomer

Chromium compound, catalyst system including the same, and method for trimerizing ethylene using the catalyst system

SK INNOVATION CO LTD

Process for producing polycarbonates and a coordination complex used therefor

Preparation of poly(alkylene carbonate) containing cross-linked high molecular weight chains

UNIV AJOU IND ACADEMIC COOP FOUND

Bisphosphine ligand compound, chromium compound, ethylene oligomerization catalyst system, and ethylene oligomer preparation method

Chromium compound, catalyst system including same, and method for trimerizing ethylene using the catalyst system

LEE CHOONG-HOON

Method for preparing transition metal complexes, transition metal complexes prepared using the method, catalyst composition containing the complexes

LEE CHOONG HOON

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

SUNG IK KYUNG

Cycloolefin-based polymer compound, preparation method thereof and selective hydrogenation process