Title:
CATALYTIC SYSTEM FOR CARBON DIOXIDE/EPOXIDE COPOLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2010/147421
Kind Code:
A3
Abstract:
The present invention related to a method of manufacturing a polycarbonate including the process of copolymerizing epoxide compound and CO2 using cobalt(III) or chromium(III), where the ligands contains at least 3 ammonium cations, central metal has formal -1 charge, and conjugated anions of the two cationic ammonium groups are acid-base homoconjugation, as catalyst. According to the present invention, the initial induction time can be reduced when the said polycarbonate is manufactured and it is possible to improve the activity of the catalyst and the molecular weight of the obtained polymer.
Inventors:
JEONG JISU (KR)
SUJITH SUDEVAN (KR)
OK MYUNGAHN (KR)
YOO JIEUN (KR)
LEE BUNYEOUL (KR)
NA SUNGJAE (KR)
SUJITH SUDEVAN (KR)
OK MYUNGAHN (KR)
YOO JIEUN (KR)
LEE BUNYEOUL (KR)
NA SUNGJAE (KR)
Application Number:
PCT/KR2010/003939
Publication Date:
April 14, 2011
Filing Date:
June 18, 2010
Export Citation:
Assignee:
SK INNOVATION CO LTD (KR)
JEONG JISU (KR)
SUJITH SUDEVAN (KR)
OK MYUNGAHN (KR)
YOO JIEUN (KR)
LEE BUNYEOUL (KR)
NA SUNGJAE (KR)
JEONG JISU (KR)
SUJITH SUDEVAN (KR)
OK MYUNGAHN (KR)
YOO JIEUN (KR)
LEE BUNYEOUL (KR)
NA SUNGJAE (KR)
International Classes:
C07F15/06; B01J31/22; C08G64/32; C08G64/34
Other References:
SUJITH, S ET AL.: "A Highly Active and Recyclable Catalyst System for C02/Propylene Oxide Copolymerization", ANGEW. CHEM. INT. ED., vol. 47, 2008, pages 7306 - 7309, XP002687948
MIN, JAEKI ET AL.: "Efficient Synthesis of a Highly Active Catalyst for C02/Epoxide Copolymerization", BULL. KOREAN CHEM. SOC., vol. 30, no. 3, 20 March 2009 (2009-03-20), pages 745 - 748, XP002687949
COHEN, CLAIRE T ET AL.: "Cobalt Catalysts for the Alternating Copolymerization of Propylene Oxide and Carbon Dioxide: Combining High Activity and Selectivity", J. AM. CHEM. SOC., vol. 127, 2005, pages 10869 - 10878, XP002535751
QIN, ZENGQUAN.: "Cobalt-Based Complexes for the Copolymerization of Propylene Oxide and C02 : Active and Selective Catalysts for Polycarbonate Synthesis", ANGEW. CHEM. INT. ED., vol. 42, 2003, pages 5484 - 5487, XP002687951
See also references of EP 2443131A4
MIN, JAEKI ET AL.: "Efficient Synthesis of a Highly Active Catalyst for C02/Epoxide Copolymerization", BULL. KOREAN CHEM. SOC., vol. 30, no. 3, 20 March 2009 (2009-03-20), pages 745 - 748, XP002687949
COHEN, CLAIRE T ET AL.: "Cobalt Catalysts for the Alternating Copolymerization of Propylene Oxide and Carbon Dioxide: Combining High Activity and Selectivity", J. AM. CHEM. SOC., vol. 127, 2005, pages 10869 - 10878, XP002535751
QIN, ZENGQUAN.: "Cobalt-Based Complexes for the Copolymerization of Propylene Oxide and C02 : Active and Selective Catalysts for Polycarbonate Synthesis", ANGEW. CHEM. INT. ED., vol. 42, 2003, pages 5484 - 5487, XP002687951
See also references of EP 2443131A4
Attorney, Agent or Firm:
KWON, Oh-Sig et al. (921 Dunsan-dong, Seo-gu, Daejeon 302-120, KR)
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