Metallocene compounds, production process for olefin polymers using catalysts containing them and olefin polymers produced by the production process
申请人:Chisso Petrochemical Corporation
公开号:US20030149200A1
公开(公告)日:2003-08-07
The present invention provides metallocene compounds which exhibit high polymerization activity for production of highly stereoregular polymers, as well as a production process for olefin polymers which employs olefin polymerization catalysts containing the compounds, and olefin polymers obtained by the production process. A metallocene compound of the present invention is represented by the following general formula (1):
YKLMX
2
(1)
wherein M represents a titanium atom, zirconium atom or hafnium atom; K and L are fused rings coordinated to M and each independently represents a fused ring of a cyclopentadienyl ring and a 5-membered ring, a fused ring of a cyclopentadienyl ring and a 6-membered ring or a fused ring of a cyclopentadienyl ring and a 7-membered ring; Y is a bridge group crosslinking K and L; and each X is bonded to M; and K and L have a 2-furyl group, substituted 2-furyl group, 2-thienyl group, substituted 2-thienyl group, 2-furfuryl group or substituted 2-furfuryl group on at least one position among each of the 2-positions, 4-positions and 5-positions.
本发明提供了一种展现高聚合活性的茂金属化合物,用于生产高立构规整聚合物,以及一种利用含有该化合物的烯烃聚合催化剂的烯烃聚合生产工艺,以及通过该生产工艺获得的烯烃聚合物。本发明的一种茂金属化合物由以下通用式(1)表示:YKLMX2(1)其中M代表钛原子、锆原子或铪原子;K和L是配位到M的融合环,每个独立地代表一个环的融合环,包括一个环的环戊二烯环和一个5元环、一个环的环戊二烯环和一个6元环或一个环的环戊二烯环和一个7元环;Y是连接K和L的桥接基团;每个X与M键合;K和L在2-位、4-位和5-位中至少一个位置上具有2-呋喃基团、取代的2-呋喃基团、2-噻吩基团、取代的2-噻吩基团、2-呋喃基团或取代的2-呋喃基团。