1
Bun Yeoul Lee, Ji Hae Park, Seung Hyun Do: Group 4 metal compound containing thiophene-fused cyclopentadienyl ligand derived from tetraquinoline derivative and olefin polymerization using the same. Lotte Chemical Corporation, Alston & Bird, August 4, 2015: US09096575 (3 worldwide citation)

The present invention relates to a novel ligand derived from a tetrahydroquinoline derivative, and a transition metal compound prepared using the ligand, where an amido ligand is linked to an ortho-phenylene ligand to form a condensed ring and a 5-membered cyclic pi-ligand linked to the ortho-phenyl ...


2
Bun Yeoul Lee, Ji Hae Park, Seung Hyun Do, Hwa Kyu Kim, Jae Young Park, Seung Woong Yoon: Method for preparing olefin-diene copolymer using transition metal compound containing thiophene-fused cyclopentadienyl ligand. Lotte Chemical Corporation, Alston & Bird, December 23, 2014: US08916662 (1 worldwide citation)

The present invention relates to a preparation method for olefin-diene copolymer that comprises polymerizing at least one olefin-based monomer and at least one diene-based monomer in the presence of a catalyst comprising a novel transition metal compound. Using the novel transition metal compound as ...


3
Bun Yeoul Lee, Ji Hae Park, Seung Hyun Do: Group 4 metal compound containing thiophene-fused cyclopentadienyl ligand derived from tetraquinoline derivative and olefin polymerization using the same. Lotte Chemical Corporation, Alston & Bird, December 16, 2014: US08912352 (1 worldwide citation)

The present invention relates to a novel ligand derived from a tetrahydroquinoline derivative, and a transition metal compound prepared using the ligand, where an amido ligand is linked to an ortho-phenylene ligand to form a condensed ring and a 5-membered cyclic pi-ligand linked to the ortho-phenyl ...


4
Bun Yeoul Lee, Ji Hae Park, Seung Hyun Do, Young Kook Kim, Hwa Kyu Kim, In Sung Nam, Seung Woong Yoon: Supported catalyst for olefin polymerization and preparation method for polyolefin using the same. Lotte Chemical Corporation, Alston & Bird, June 23, 2015: US09062025

The present invention relates to a supported catalyst for olefin polymerization to which a novel transition metal compound and a co-catalyst compound are bound, and a preparation method for polyolefin using the supported catalyst. The transition metal compound bound to the catalyst of the present in ...


5
Chang Min Seo, Gyeong Mo Lee: Monofilament-reinforced hollow fiber membrane with scalloped lumen. LOTTE CHEMICAL CORPORATION, Lewis Roca Rothgerber Christie, August 14, 2018: US10046281

A hollow fiber membrane is formed by embedding a braid having a spiral open weave of monofilaments only, to avoid a “whiskering” problem. The open weave is characterized by contiguous, circumferential, rhomboid-shaped areas of polymer film separated by monofilament. When the braid is supported on a ...


6
Chang Min Seo, Gyeong Mo Lee: Monofilament-reinforced hollow fiber membrane. Lotte Chemical Corporation, Samsung SDI, Lewis Roca Rothgerber Christie, February 7, 2017: US09561475

A hollow fiber membrane is formed by embedding a braid having a spiral open weave of monofilaments only, to avoid a “whiskering” problem common in prior art multifilament braid-supported tubular membranes. The open weave is characterized by contiguous, circumferential, rhomboid-shaped areas of polym ...


7
Bun Yeoul Lee, Jung Jae Lee, Eun Yeong Hwang, Jong Yeob Jeon, Seong Chan Eo: Aliphatic polycarbonate with long-chain branches and aromatic copolyester thereof. LOTTE CHEMICAL CORPORATION, STIP Law Group, May 22, 2018: US09975990

Provided is an aliphatic polycarbonate-co-aromatic polyester with long-chain branches. The copolymer includes repeating units represented by —OAO— and Z(O—)a, which are linked via carbonyl (—C(O)—) and —C(O)YC(O)— as linkers. Also provided is an aliphatic copolycarbonate including repeating units re ...


8
Eun Mi Choi, Dae Sik Kim, Mi Kyoung Kim: Method for operating redox flow battery. LOTTE CHEMICAL CORPORATION, Lex IP Meister PLLC, July 3, 2018: US10014545

The present disclosure relate to a method for operating a redox flow battery, which includes the steps of discharging the redox flow battery having an anode electrolyte and a cathode electrolyte when a volume difference between the anode electrolyte and the cathode electrolyte is within 20% of a tot ...


9
Bun Yeoul Lee, Ji Hae Park, Jong Yeob Jeon, Jung Jae Lee, Young Eun Jang: High-molecular weight aliphatic polycarbonate prepared using base catalyst. LOTTE CHEMICAL CORPORATION, STIP Law Group, October 25, 2016: US09475905

An aliphatic polycarbonate is disclosed in which a salt consisting of a metal or onium cation and an anion having a pKa not greater than 3 is dispersed. The aliphatic polycarbonate includes repeating units of Formula 1: [-A-OC(O)O-] (wherein A is a substituted or unsubstituted C3-C60 alkylene, or a ...


10
Mi Kyoung Kim, Eun Mi Choi, Dae Sik Kim, Wooin Jang, Taehyuk Kang: Method for preparing cathode electrolyte for redox flow batteries, and redox flow battery. LOTTE CHEMICAL CORPORATION, Lex IP Meister PLLC, May 15, 2018: US09972859

The present disclosure relate to a method for preparing a cathode electrolyte for redox flow batteries including the steps of: forming a first cathode electrolyte by reducing vanadium pentoxide (V2O5) in an acidic solution in the presence of a specific reducing compound; forming a second cathode ele ...