Patents (International)

Lee, Bun Yeoul; Kim, Sung Dong; Gwon, Su Jin; Kim, Tae Hee, Symmetrical polyolefin block copolymer and preparation method therefor, JP7071763 (May 19, 2021)

Shin, Eun Ji; Lee, Ki Soo; Sa, Seok Pil; Hong, Yoon Ki; Lee, Bun Yeoul, Block copolymer composition, US11312856 (2022-04-26); JP7094603 (July 04, 2021)

Jang, Hye Young; Lee, Bun Yeoul; Lim, Yu Na; Son, Seung Uk; Park, No Jin; Kang, Shin Young; Noh, Hyeong Wan; Cheong, Yeon Joo, Catalyst composition for preparing polyketone compound, palladium mixed catalyst system, method, CN 109312145 B (Mar 16, 2021)

Lee, Bun Yeoul; Kim, Tae Hee; Park, Hee Soo; Baek, Jun Won; Gwon, Su Jin; Kim, Sung Dong, Preparation of bisphosphine ligands and chromium complexes as ethylene oligomerization catalysts US 11148127 B2 (Oct 19, 2021)

Lee, Bun Yeoul; Kim, Eun Ho; Lee, Hyun Mo, Chromium compound, catalyst system using thereof, and method for manufacturing ethylene oligomer, JP 6806973 B2 (Jan 06, 2021)

Lee, Bun Yeoul; Lee, Jung Jae; Hwang, Eun Yeong; Jeon, Jong Yeob; Eo, Seong Chan “Aliphatic polycarbonate-aromatic polyesters having long-chain branches” JP 6604956 (B2) (Nov 13, 2019)

Lee, Bun Yeoul; Jeon, Jong Yeob; Park, Dong Sik “Chromium compounds for olefin trimerization with good catalytic activity” US 10442741 (B2) (Oct 15, 2019)

Lee, Bun Yeoul; Jeon, Jong Yeob; Park, Geun Ho “Organic zinc compound comprising polyolefin-polystyrene block copolymer, and method for preparing same” EP 3257880 (B1) (Oct 02, 2019)

Lee, Bun Yeoul; Jung, Il Gu; Jeong, Ji Su; Lee, Jeon Koo; Lee, Je Ho; Kim, Jong Chan; Lee, Han Sol; Jobi, Kodiyan Varghese “Double metal cyanide catalyst and epoxide/carbon dioxide copolymer prepared using the same”CN 105555400 (B) (Jan 04, 2019)

Lee, Bun Yeoul; Park, Geun ho; JEON JONG-YEOB “Organic zinc compound comprising polyolefin-polystyrene block copolymer, and method for preparing same” JP 6398015 (B2) (Sep 26, 2018)

Lee, Bun Yeoul; Lee, Jeong Jae; Hwang, Eun Young; Jeon jong yeob; Eo, Sung Chan “Aliphatic polycarbonate-aromatic polyesters having long-chain branches” CN 105683242 (B) (Apr 17, 2018) ; US 9975990 (B2) (May 22, 2018)

Lee, Bun Yeoul “Preparation of Group IVB ansa-metallocenes as copolymerization catalysts for preparation of polyolefins and process for preparation of the metallocenes” EP 1794170 (B1) (Jan 10, 2018)

LEE BUN-YEOUL, JEON JONG-YEOB, LEE JUNG-JAE, PARK JI-HAE, Aliphatic polycarbonate copolymer having high molecular weight, and preparation method therefor, CN 104797627 (B) (2017-09-01); US 9447234 B2 (Sep 20, 2016), EP 02902429 (B1) (Jul 04, 2018)

LEE BUN YEOUL; JEON JONG YEOB; PARK JI HAE; LEE JUNG JAE; HWANG EUN YEONG, Macro-polyol composed of aliphatic polycarbonate and aromatic polyester copolymer thereof, CN105473636 (B) (2017-09-08); JP6420833 (B2) (Nov 07, 2018)

Lee, Bun Yeoul; Park, Ji Hae; Jeon, Jong Yeob; Lee, Jung Jae; Jang, Young Eun, High molecular weight aliphatic polycarbonates prepared using base catalyst, US 9475905B2 (Oct 25, 2016)

Jeong, Jisu; Na, Sungjae; Sudevan, Sujith; Ok, Myungahn; Han, Yonggyu; Chung, Kwangjin; Lee, Bun Yeoul; Cyriac, Anish; Lee, Sanghwan "Block and graft copolymers of poly(alkylene carbonate) and with various polymers" US 8637634B2 (Jan 28, 2014); CN 102918079 B (Dec 31, 2014 ); JP 5698344B2 (Apr 08, 2015 ); CN 104479119B (Aug 24, 2016)

Jeong, Jisu; Na, Sungjae; Sudevan, Sujith; Ok, Myungahn; Han, Younggyu; Chung, Kwangjin; Lee, Bun Yeoul; Cyriac, Anish "Precise control of molecular weight and chain shape in carbon dioxide/epoxide alternating copolymerization" US 8530616B2 (Sep 10, 2013); CN 102918079B (2014-12-31)

Jeong, Ji Su; Sudevan, Sujith; Ok, Myung Ahn; Na, Sung Jae; Han, Yong Gyu; Chung, Kwang Jin; Lee, Bun Yeoul; Jobi, Kodiyan Varghese "Catalytic complex systems with nitrate anions for carbon dioxide-epoxide copolymerization" US 8598309B2 (Dec 03, 2013)

Won, Young-Chul; Chun, Sung-Ho; Choi, Dai-Seung; Yoo, Dong-Woo; Lee, Bun-Yeoul "Production of novel compound, novel metallocene polymerization catalyst composition for preparing high molecular weight cyclic olefin polymer" US 8420755 (Apr 16, 2013); EP 2468758B2 (Dec 27, 2017)

SUNG, Ik Kyung, HWANG, Woon Sung, SEO, Jung Hoon, LEE, Bun Yeoul, NA, Sung Jae, YU, Seung Taek, "Cycloolefin polymers, preparation method thereof, and selective hydrogenation process" JP 5220132B2 (Jun 26, 2013); CN 101977947B (Jul 17, 2013); US 8735521 B2 (May 27, 2014); EP 2243794B1 (Jul 27, 2016)

Bun Yeoul Lee, Sujith S, Eun Kyung Noh, Jakki Min "A process producing polycabonate using a coordination complex as a catalyst" US 8163867B2 (2012.04.24); CN 101687987B (2012.07.04); CA 2685974C (Dec 04, 2012); JP 5238802B2 (Jul 17, 2013); US 8530615 B2 (Sep 10, 2013); EP 2147037B1 (Aug 20, 2014); US 8530615 B2 (Sep 10, 2013); US 8829156 B2 (Sep 09, 2014);

Ok, Myungahn; Jeong, Ji Su; Lee, Bun Yeoul; Sujith, S.; Anish, Cyriac; Min, Jea Ki; Seong, Jong Eon "Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst" CN 102076738B (Aug 29, 2012); JP 5570509B2 (Aug 13, 2014); US 8791274B2 (Jul 29, 2014); US 8507733B2 (Aug 13, 2013); US 8642721B2 (Feb 04, 2014); US 9771453B2 (Sep 26, 2017)

Lee, Choong-Hoon; Lee, Eun-Jung; Jung, Seung-Whan; Lee, Jung-A.; Lee, Bo-Ram; Lee, Bun-Yeoul. "Preparing transition metal complexes, transition metal complexes prepared using the method, catalysts, composition containing the complexes, and catalysts for olefin polymerization." US 7932207 B2 (2011.04.26.); CN 101578293B (Jan 23, 2013); JP 5597398 B2 (Oct 01, 2014)

Lee, Choong Hoon; Lee, Eun Jung; Jung, Seungwhan; Lee, Boram; Lee, Jung A.; Lee, Bun Yeoul. "Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition." WO     2007111423(20070313); US 8039671 B2 (2011.10.18); EP 1999165 B1 (Apr 24, 2013); CN 101213218 B (Dec 01, 2010); JP 4653216 B2 (Mar 16, 2011); US 8048973 B2 (2011.11.01);

Lee, Choong Hoon; Lee, Eun Jung; Jung, Seungwhan; Lee, Boram; Lee, Jung A.; Lee, Bun Yeoul. "Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition." US 7928256B2 (Apr 19, 2011); CN 101213218B (Dec 01, 2010); JP 4653216B2 (Mar 16, 2011); EP 1999165B1 (Apr 24, 2013); US 8039671B2 (Nov 01, 2011)

Lee, Choong-Hoon; Lee, Eun-Jung; Jung, Seung-Whan; Lee, Jung-A.; Lee, Bo-Ram; Lee, Bun-Yeoul. "Half-sandwich constrained-geometry transition metal phenylene-bridged pendant phosphido and amido complexes as alkene polymerization and copolymerization catalysts and process of preparation thereof." US 7678933 B2 (2010.03.16); EP 1966225B1(Dec 25, 2013); JP 5090368 B2 (Dec 05, 2012); TW 342317 B (May 21, 2011); TW 336331 B (Jan 21, 2011); EP 1966225 B1 Dec 25, 2013

Lee, Choong-Hoon; Lee, Eun-Jung; Jung, Seung-Whan; Lee, Jung-A.; Lee, Bo-Ram; Lee, Bun-Yeoul. "Catalyst composition comprising group 4 transition metal complexes and method for preparing polyolefins using the same." US 7807762 B2 (2010.10.05); EP 1966223B1 (Aug 14, 2013); JP 4988754 B2 (Aug 01, 2012); TW 336331 B (Jan 21, 2011); TW 342317 B (May 21, 2011); US 7807762B2 (Oct 05, 2010)

Lee, Choong Hoon; Lee, Eun Jung; Jung, Seungwhan; Ha, Jong Joo; Seo, Beomdoo; Lee, Bun Yeoul; Joung, Ui Gab; Joe, Dae June. "Preparation of transition metal complex containing non-coordinated amine group for olefin polymerization catalyst." US 7531608B2 (20090512); CN 101218262B (Nov 30, 2011); JP 4927078B2 (May 09, 2012); TW 326287 B (Jun 21, 2010); DE 112006001795 (B4) (May 08, 2018)

Lee, Choong Hoon; Lee, Eun Jung; Jung, Seungwhan; Ha, Jong Joo; Seo, Beomdoo; Lee, Bun Yeoul; Joung, Ui Gab; Joe, Dae June. "Olefin polymerization with transition metal complex containing a phenylene bridge as a catalyst." US 7538239B2 (2009.05.26); TW 315311B (Oct 01, 2009); CN 101223195B (Oct 26, 2011); JP 5043007 B2 (Oct 10, 2012); US 8129488B2 (Mar 06, 2012) 

Lee, Choong-Hoon; Ha, Jong-Joo; Jung, Seungwhan; Lee, Eunjung; Seo, Beomdoo; Park, Young-Whan; Lee, Hyosun; Hong, Sung-Don; Won, Young-Chul; Lee, Bun-Yeoul. "Ansa-metallocene compound, process of preparing the same, and process of preparing polyolefin using the same" WO2006033527(20050908); EP1794170A1(20050908); US7629481 B2 (2009.12.08);  TW311140B (2009.06.21)

Park, Young-Whan; Lee, Hyo-Sun; Won, Young-Chul; Lee, Bun-Yeoul; Kwon, Heon-Yong; Lee, Soo-Yeon. WO 2006065001 (2006.06.22); US7244805(20070717); TW 277607B(20070401) "Manufacture of bimetallic zinc complex polymerization catalysts and polymerization process therewith"

Lee, B. Y.; Oh, J. S.; Lee, J.-e.; Lee, D.-h. US7247595(2007.07.24) "Supported metallocene catalyst for olefin polymerization"

Park, Young-whan; Lee, Si-geun; Hong, Sung-don; Song, Kwang-ho; Jeong, Boong-goon; Nam, Dae-woo; Lee, Bun Yeoul; Lee, Choong-hoon; Lee, Hyo-sun. WO2004020481(2003.08.29); US7271277(2007.09.18); CN1302016C(2007022); JP4202320B2(20081224); "Fulvene compound intermediates for preparation of metallocene catalysts for preparation of polyolefins."

Park, Y. W.; Lee, H.; Hong, S. D.; Song, K. H.; Jeong, B. K.; Nam, D. W.; Jung, H. Y.; Lee, B. Y.; Won, Y. C. WO 2005035470 (20041013); US7166731(2007.01.23); CN1753853A(20041013); JP2006514120T(20041013); EP1673321A1(20041013); EP 1673321 B1 (Sep 17, 2014) "Preparing fulvene compounds and ansa-metallocene compounds using the compounds, intermediates and olefin polymerization catalysts" 

B. Y. Lee, WO03018643(2003. 08. 30); JP4069865B2(20080402); CN1204150C(20050601); US6803433(2004.10.12); TW574239B(2004.02.01) “Catalyst for olefin polymerization and method for preparing polyolefins"

J. S. Oh, B. Y. Lee, J. E. Lee, D. H. Lee, WO 0078827(2000.3.9); EP1196459B1(2004.08.25); AU 767633B2 (2003. 11. 20); JP3592672B2(2004.11.24); AU767633B2(20031120) “Supported metallocene catalyst for olefin polymerization”

J. S. Oh, B. Y. Lee, J. E. Lee, D. H. Lee, WO 0052063 (2000. 09. 08); CA2364011C(20070220); EP1214357B1 (2003.08.20); JP3547710B2(2004.07.28); CN1137905C(20040211); AU772271B2(2004.04.22); US6506919B1 (2003.01.14) “Metallocene compounds and their use for olefin polymerization”

B. Y. Lee, J. S. Oh, Y. H. Oum, T. H. Park, WO 0047635 (2000. 08. 17); US 6340728B1 (2002. 01. 22); AU771870B2(2004.04.01); EP1082357B1(2004.11.17); CN1182157C(20041229).  “Method for olefin polymerization with recycling of co-catalyst”

J. S. Oh, B. Y. Lee, WO 9952952 (1999. 10. 21); US 6355742B1 (2002. 03. 12); AU 762014B2 (2003. 06. 19); EP 988328B1     (2003. 09. 10); JP4144906B2(20080903); CN 1109050B (2003. 05. 21) “Recycling aluminum cocatalyst for olefin polymerization conducted with metallocene catalyst” CA 2293279 C (Jun 22, 2010)

B. Y. Lee, J. S. Oh, WO 9952949 (1999. 10. 21); CA2293277C(20080722); US 6469113B1 (2002. 10. 22); EP 988326B1 (2003. 03. 19); AU 762873B2 (2003. 07. 10); CN1159349C(20040728) “Method for producing metallocene catalyst for olefin polymerization”

J. S. Oh, T. H. Park, B. Y. Lee, WO 9821248 (1998.05.22); US 6214953B1 (2001.04.10); EP 918803B1 (2003. 03. 12) “Preparation of olefinic polymers using supported alkyl-modified metallocene catalyst”

J. S. Oh, T. H. Park, B. Y. Lee, S. W. Jeong, WO 9719960 (1997.06.05); US 6255417B1 (2001. 07. 03); CN 1097595B (2003. 01. 01); EP 863920B1 (2001. 02. 07) “Preparation of olefinic polymers using metallocene catalysts”