METHOD FOR PREPARING POLYPROPYLENE USING A TRANSITION METAL COMPOUND CONTAINING THIOPHENE-FUSED CYCLOPENTADIENYL LIGANDS

WIPO Patent Application WO/2011/129593

A2

The present invention relates to a method for preparing polypropylene, comprising a step of polymerizing propylene in the presence of a catalyst containing a transition metal compound having a novel structure. As the method for preparing polypropylene according to the present invention uses, as a catalyst, the transition metal compound having the novel structure, polymerization activity is improved such that superior processing efficiency is achieved and the microstructure of a polymer is easily controlled, thereby easily preparing polypropylene having desired physical properties.

LEE BUN-YEOUL (KR)
PARK JI-HAE (KR)
DO SEUNG-HYUN (KR)
KIM HWA-KYU (KR)
PARK JAE-YOUNG (KR)
YOON SEUNG-WOONG (KR)

PCT/KR2011/002584

October 20, 2011

April 12, 2011

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HONAM PETROCHEMICAL CORP (KR)
LEE BUN-YEOUL (KR)
PARK JI-HAE (KR)
DO SEUNG-HYUN (KR)
KIM HWA-KYU (KR)
PARK JAE-YOUNG (KR)
YOON SEUNG-WOONG (KR)

C08F10/06; B01J31/12; C07F7/00; C07F7/28; C08F4/6592

WO2008084931A1	2008-07-17
WO2008066266A1	2008-06-05

KR20080065868A

2008-07-15

TETRAHEDRON LETT., vol. 26, 1985, pages 5935
TETRAHEDRON, vol. 42, 1986, pages 2571
J CHEM. SC. PERKIN TRANS., 1989, pages 16
ORGANOMETALLICS, vol. 27, 2007, pages 6685
J ORGANOMET. CHEM., vol. 690, 2005, pages 4213
See also references of EP 2559713A2

YOU ME PATENT & LAW FIRM (649-10Yoksam-dong,Kangnam-ku, Seoul 135-080, KR)

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